Inclusão da biblioteca proj4php

Edmar Moretti
1 parent 25fd30e1
Showing 66 changed files with 7253 additions and 3 deletions Show diff stats
admin/js/estat_editor.js
admin/php/metaestat_uploadshp_submit.php
aplicmap/dados/utm21.prj
pacotes/proj4php-proj4php5.2/LICENSE
pacotes/proj4php-proj4php5.2/README.md
pacotes/proj4php-proj4php5.2/composer.json
pacotes/proj4php-proj4php5.2/src/proj4php/LGPL GNU lesser licence.txt
pacotes/proj4php-proj4php5.2/src/proj4php/WSProj4PHP_1.0.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG102757.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG102758.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG2154.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG21781.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG25832.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG25833.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG26591.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG26912.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG27200.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG27563.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG27571.php
pacotes/proj4php-proj4php5.2/src/proj4php/defs/EPSG31370.php
@@ -576,6 +576,7 @@ i3GEOadmin.editor = {
 			'<p class="paragrafo" >shp: <br><input type="file" size=22 name="i3GEOuploadshp" style="top:0px;left:0px;cursor:pointer;"></p>' +
 			'<p class="paragrafo" >shx: <br><input type="file" size=22 name="i3GEOuploadshx" style="top:0px;left:0px;cursor:pointer;"></p>' +
 			'<p class="paragrafo" >dbf: <br><input type="file" size=22 name="i3GEOuploaddbf" style="top:0px;left:0px;cursor:pointer;"></p>' +
+			'<p class="paragrafo" >prj (opcional): <br><input type="file" size=22 name="i3GEOuploadprj" style="top:0px;left:0px;cursor:pointer;"></p>' +
 			'</fieldset>' +
 			'<fieldset class=subbloco >' +
 			'<legend>Destino</legend>' +
@@ -51,17 +51,28 @@ if (isset($_FILES[&#39;i3GEOuploadshp&#39;][&#39;name&#39;])){
 	$status =  move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".shp");
 	if($status != 1)
 	{echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo SHP";exit;}
+	
 	$Arquivo = $_FILES['i3GEOuploadshx']['tmp_name'];
 	$status =  move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".shx");
 	if($status != 1)
 	{echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo SHX";exit;}
+	
 	$Arquivo = $_FILES['i3GEOuploaddbf']['tmp_name'];
 	$status =  move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".dbf");
 	if($status != 1)
 	{echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo DBF";exit;}
-
-	if(!file_exists($dir_tmp."/".$nomePrefixo.".shp"))
-	{echo "<p class='paragrafo' >Ocorreu algum problema no envio do arquivo ".$dir_tmp."/".$nomePrefixo;paraAguarde();exit;}
+	
+	if($_FILES['i3GEOuploadprj']['tmp_name'] != ""){
+		$Arquivo = $_FILES['i3GEOuploadprj']['tmp_name'];
+		$status =  move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".prj");
+		if($status != 1){
+			echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo PRJ";exit;
+		}
+	}
+	if(!file_exists($dir_tmp."/".$nomePrefixo.".shp")){
+		echo "<p class='paragrafo' >Ocorreu algum problema no envio do arquivo ".$dir_tmp."/".$nomePrefixo;paraAguarde();
+		exit;
+	}
 	$arqshp = $dir_tmp."/".$nomePrefixo.".shp";
 	//pega os parametros de conexao
@@ -75,6 +86,9 @@ if (isset($_FILES[&#39;i3GEOuploadshp&#39;][&#39;name&#39;])){
 	$mapObj = ms_newMapObjFromString("MAP END");
 	$layer = ms_newLayerObj($mapObj);
 	$layer->set("data",$arqshp);
+	if(file_exists($dir_tmp."/".$nomePrefixo.".prj")){
+		$layer->setprojection("AUTO");
+	}
 	$layer->open();
 	$colunasTemp = $layer->getItems();
 	$colunas = array();
@@ -190,8 +204,25 @@ if (isset($_FILES[&#39;i3GEOuploadshp&#39;][&#39;name&#39;])){
 	sleep(1);
 	$srid = 4326;
 	$escapar = "'";
+	$prjMapa = $mapObj->getProjection();
+	$prjTema = $layer->getProjection();
+	if (($prjTema != "") && ($prjMapa != $prjTema))
+	{
+		$projInObj = ms_newprojectionobj($prjTema);
+		$projOutObj = ms_newprojectionobj($prjMapa);
+	}
+	else{
+		$projOutObj = "";
+		$projInObj = "";
+	}
 	for ($i=0; $i<$numshapes;$i++){
 		$s = $layer->getShape(new resultObj($i));
+		//projeta o shape se existir .prj
+		if($_FILES['i3GEOuploadprj']['tmp_name'] != "" && $projInObj != ""){
+			$s->project($projInObj, $projOutObj);
+			//para nao projetar com postgis
+			$_POST["insrid"] = $_POST["outsrid"];
+		}
 		$vs = array();
 		foreach($colunas as $coluna){
@@ -0,0 +1 @@
+PROJCS["SAD69 / UTM zone 21S (deprecated)",GEOGCS["SAD69",DATUM["D_South_American_1969",SPHEROID["GRS_1967",6378160,298.247167427]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-57],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["Meter",1]]
@@ -0,0 +1,505 @@
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+
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+
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+
+                     END OF TERMS AND CONDITIONS
+
+           How to Apply These Terms to Your New Libraries
+
+  If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change.  You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+  To apply these terms, attach the following notices to the library.  It is
+safest to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+    {description}
+    Copyright (C) {year} {fullname}
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+    USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random
+  Hacker.
+
+  {signature of Ty Coon}, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
+
@@ -0,0 +1,25 @@
+# proj4php
+PHP-class for proj4
+This is a PHP-Class for geographic coordinates transformation using proj4 definitions, thanks to a translation from Proj4JS. 
+
+## Using
+
+```php
+include("proj4php");
+
+$proj4 = new Proj4php();
+$projL93 = new Proj4phpProj('EPSG:2154',$proj4);
+$projWGS84 = new Proj4phpProj('EPSG:4326',$proj4);
+
+$pointSrc = new proj4phpPoint('652709.401','6859290.946');
+$pointDest = $proj4->transform($projL93,$projWGS84,$pointSrc);
+
+echo "Source : ".$pointSrc->toShortString()." in L93 <br>";
+echo "Conversion : ".$pointDest->toShortString()." in WGS84<br><br>";
+```
+
+There's is also way to define inline projections.
+
+## Developping
+
+Fill free to fork us and submit your changes !
@@ -0,0 +1,35 @@
+{
+    "name": "proj4php/proj4php",
+    "license": "LGPL-2.1",
+    "type": "library",
+    "description": "A PHP-Class for geographic coordinates transformation using proj4 definitions, thanks to a translation from Proj4JS",
+    "keywords": [
+        "geographic",
+        "coordinates",
+        "proj4",
+        "proj4js"
+    ],
+    "homepage": "https://github.com/proj4php/proj4php",
+    "authors": [
+        {
+            "name": "julien2512",
+            "email": "moquet.julien@gmail.com",
+            "homepage": "https://github.com/julien2512",
+            "role": "Developer"
+        },
+        {
+            "name": "winne27",
+            "homepage": "http://github.com/winne27",
+            "role": "Developer"
+        }
+    ],
+    "require": {
+        "php": ">=5.2.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "4.0.*"
+    },
+    "autoload": {
+        "classmap": ["src/"]
+    }
+}
@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
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+  "The Library" refers to a covered work governed by this License,
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+
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+
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+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
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+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
@@ -0,0 +1,104 @@
+<?php
+
+include_once("proj4php.php");
+
+$error = false;
+
+/**
+ * Geometry-Points 
+ */
+if( isset( $_GET['GEOM'] ) ) {
+    list($x, $y) = explode( ' ', $_GET['GEOM'] );
+} else {
+    if( isset( $_GET['x'] ) ) {
+        $x = $_GET['x'];
+    }
+    else
+        $error = true;
+
+    if( isset( $_GET['y'] ) ) {
+        $y = $_GET['y'];
+    }
+    else
+        $error = true;
+}
+
+/**
+ * Source-CRS 
+ */
+if( isset( $_GET['SOURCECRS'] ) ) {
+    $srcProjection = str_replace( '::', ':', $_GET['SOURCECRS'] );
+} else if( isset( $_GET['projectionxy'] ) ) {
+    $srcProjection = $_GET['projectionxy'];
+    $srcProjection = str_replace( '::', ':', $srcProjection );
+}
+else
+    $srcProjection = 'EPSG:2154';
+
+/**
+ * Target-CRS 
+ */
+if( isset( $_GET['TARGETCRS'] ) ) {
+    $tgtProjection = str_replace( '::', ':', $_GET['TARGETCRS'] );
+} else if( isset( $_GET['projection'] ) ) {
+    $tgtProjection = $_GET['projection'];
+    $tgtProjection = str_replace( '::', ':', $tgtProjection );
+}
+else
+    $tgtProjection = 'EPSG:4326';
+
+/**
+ * Format
+ */
+if( isset( $_GET['format'] ) ) {
+    $format = $_GET['format'];
+    if( !($format == 'xml' || $format == 'json') )
+        $error = true;
+}
+else
+    $format = 'xml';
+
+
+$proj4 = new Proj4php();
+$projsource = new Proj4phpProj( $srcProjection, $proj4 );
+$projdest = new Proj4phpProj( $tgtProjection, $proj4 );
+
+// check the projections
+if( Proj4php::$defs[$srcProjection] == Proj4php::$defs['WGS84'] && $srcProjection != 'EPSG:4326' )
+    $error = true;
+if( Proj4php::$defs[$tgtProjection] == Proj4php::$defs['WGS84'] && $tgtProjection != 'EPSG:4326' )
+    $error = true;
+
+if( $error === true ) {
+    if( $format == 'json' ) {
+        echo "{\"status\":\"error\", \"erreur\": {\"code\": 2, \"message\": \"Wrong parameters.\"} }";
+        exit;
+    } else {
+        echo "<reponse>";
+        echo "  <erreur>";
+        echo "    <code>2</code>";
+        echo "    <message>Wrong parameters</message>";
+        echo "  </erreur>";
+        echo "</reponse>";
+        exit;
+    }
+}
+
+$pointSrc = new proj4phpPoint( $x, $y );
+$pointDest = $proj4->transform( $projsource, $projdest, $pointSrc );
+
+$tgtProjection = str_replace( ':', '::', $tgtProjection );
+
+if( $format == 'json' ) {
+    echo "{\"status\" :\"success\", \"point\" : {\"x\":" . $pointDest->x . ", \"y\":" . $pointDest->y . ",\"projection\" :\"" . $tgtProjection . "\"}}";
+    exit;
+} else {
+    header ("Content-Type:text/xml"); 
+    echo "<reponse>";
+    echo "<point>";
+    echo "<x>" . $pointDest->x . "</x>";
+    echo "<y>" . $pointDest->y . "</y>";
+    echo "<projection>" . $tgtProjection . "</projection>";
+    echo "</point>";
+    echo "</reponse>";
+}
 \ No newline at end of file
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:102757"] = "+title=NAD 1983 StatePlane Wyoming West Central FIPS 4903 Feet +proj=tmerc +lat_0=40.5 +lon_0=-108.75 +x_0=600000.0 +y_0=0 +k=0.999938 +a=6378137.0  +b=6356752.3141403 +to_meter=0.3048006096012192";
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:102758"] = "+title=NAD 1983 StatePlane Wyoming West FIPS 4904 Feet +proj=tmerc +lat_0=40.5  +lon_0=-110.0833333333333 +x_0=800000  +y_0=100000  +k=0.999938 +a=6378137.0 +b=6356752.3141403 +to_meter=0.3048006096012192";
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:2154"] = "+proj=lcc +lat_1=49 +lat_2=44 +lat_0=46.5 +lon_0=3 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs";
 \ No newline at end of file
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:21781"] = "+title=CH1903 / LV03 +proj=somerc +lat_0=46.95240555555556 +lon_0=7.439583333333333 +x_0=600000 +y_0=200000 +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs";
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:25832"] = "+proj=utm +zone=32 +ellps=GRS80 +units=m +no_defs";
 \ No newline at end of file
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:25833"] = "+proj=utm +zone=33 +ellps=GRS80 +units=m +no_defs";
 \ No newline at end of file
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:26591"] = "+title= Monte Mario (Rome) / Italy zone 1 EPSG:26591 +proj=tmerc +lat_0=0 +lon_0=-3.45233333333333 +from_greenwich=12.45233333333333 +k=0.999600 +x_0=1500000 +y_0=0 +a=6378388.0, +b=6356911.94612795 +units=m";
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG26912"] = "+title=NAD83 / UTM zone 12N +proj=utm +zone=12 +a=6378137.0 +b=6356752.3141403";
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:27200"] = "+title=New Zealand Map Grid +proj=nzmg +lat_0=-41 +lon_0=173 +x_0=2510000 +y_0=6023150 +ellps=intl +datum=nzgd49 +units=m +no_defs";
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:27563"]="+title=NTF (Paris)/Lambert Sud France +proj=lcc +lat_1=44.10000000000001 +lat_0=44.10000000000001 +lon_0=0 +k_0=0.9998774990000001 +x_0=600000 +y_0=200000 +a=6378249.2 +b=6356515 +towgs84=-168,-60,320,0,0,0,0 +pm=paris +units=m +no_defs ";
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:27571"] = "+proj=lcc +lat_1=49.50000000000001 +lat_0=49.50000000000001 +lon_0=0 +k_0=0.999877341 +x_0=600000 +y_0=1200000 +a=6378249.2 +b=6356515 +towgs84=-168,-60,320,0,0,0,0 +pm=paris +units=m +no_defs";
 \ No newline at end of file
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:31370"] = "+proj=lcc +lat_1=51.16666723333334 +lat_2=49.83333389999999 +lat_0=90 +lon_0=4.367486666666666 +x_0=150000.013 +y_0=5400088.438 +ellps=intl +towgs84=-99.1,53.3,-112.5,0.419,-0.83,1.885,-1.0 +units=m +no_defs";
 \ No newline at end of file
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:31467"] = "+proj=tmerc +lat_0=0 +lon_0=9 +k=1.000000 +x_0=3500000 +y_0=0 +ellps=bessel +datum=potsdam +units=m +no_defs";
 \ No newline at end of file
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:31468"] = "+proj=tmerc +lat_0=0 +lon_0=12 +k=1.000000 +x_0=4500000 +y_0=0 +ellps=bessel +datum=potsdam +units=m +no_defs";
 \ No newline at end of file
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:41001"] = "+title=simple mercator EPSG:41001 +proj=merc +lat_ts=0 +lon_0=0 +k=1.000000 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m";
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:4139"] = "+title=Puerto Rico EPSG:4139 (3 param datum shift) +proj=longlat +towgs84 = 11,72,-101,0,0,0,0 +a=6378206.4 +b=6356583.8";
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:4181"] = "+title=Luxembourg 1930 EPSG:4181 (7 param datum shift) +proj=longlat +towgs84=-193,13.7,-39.3,-0.41,-2.933,2.688,0.43 +a=6378388.0, +b=6356911.94612795";
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:42304"]="+title=Atlas of Canada, LCC +proj=lcc +lat_1=49 +lat_2=77 +lat_0=49 +lon_0=-95 +x_0=0 +y_0=0 +ellps=GRS80 +datum=NAD83 +units=m +no_defs";
 \ No newline at end of file
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:4272"] = "+title=NZGD49 +proj=longlat +ellps=intl +datum=nzgd49 +no_defs ";
@@ -0,0 +1,3 @@
+<?php
+Proj4php::$defs["EPSG:4302"] = "+title=Trinidad 1903 EPSG:4302 (7 param datum shift) +proj=longlat +a=6378293.63683822 +b=6356617.979337744 +towgs84=-61.702,284.488,472.052,0,0,0,0";
+  
@@ -0,0 +1,2 @@
+<?php
+Proj4php::$defs["EPSG:5514"]= "+title=S-JTSK EPSG:5514 +proj=krovak +lat_0=49.5 +lon_0=24.83333333333333 +alpha=30.28813972222222 +k=0.9999 +x_0=0 +y_0=0 +ellps=bessel +pm=greenwich +units=m +no_defs +towgs84=570.8,85.7,462.8,4.998,1.587,5.261,3.56";
@@ -0,0 +1,6 @@
+<?php
+// Google Mercator projection
+// Used in combination with GoogleMercator layer type in OpenLayers
+//+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs
+
+Proj4php::$defs["EPSG:900913"]= "+title= Google Mercator EPSG:900913 +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs";
@@ -0,0 +1,11 @@
+// Google Mercator projection
+// Used in combination with GoogleMercator layer type in OpenLayers
+//+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs
+
+csList.EPSG900913= "\
+  +title= Google Mercator EPSG:900913\
+  +proj=merc +a=6378137 +b=6378137 \
+  +lat_ts=0.0 +lon_0=0.0 \
+  +x_0=0.0 +y_0=0 +k=1.0 \
+  +units=m +nadgrids=@null +no_defs \
+";
@@ -0,0 +1,3 @@
+<?php
+Proj4php::$defs["GOOGLE"]="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs";
+Proj4php::$defs["EPSG:900913"]=Proj4php::$defs["GOOGLE"];
 \ No newline at end of file
@@ -0,0 +1,418 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Simple conversion from javascript to PHP of Proj4php by Mike Adair madairATdmsolutions.ca and Richard Greenwood rich@greenwoodmap.com 
+ *
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+$dir = dirname( __FILE__ );
+
+require_once($dir . "/proj4phpProj.php");
+require_once($dir . "/proj4phpCommon.php");
+require_once($dir . "/proj4phpDatum.php");
+require_once($dir . "/proj4phpLongLat.php");
+require_once($dir . "/proj4phpPoint.php");
+
+class Proj4php {
+    protected $defaultDatum = 'WGS84';
+    public static $ellipsoid = array( );
+    public static $common = null;
+    public static $datum = array( );
+    public static $defs = array( );
+    public static $wktProjections = array( );
+    public static $WGS84 = null;
+    public static $primeMeridian = array( );
+    public static $proj = array( );
+    public $msg = '';
+    /**
+     * Property: defsLookupService
+     * service to retreive projection definition parameters from
+     */
+    public static $defsLookupService = 'http://spatialreference.org/ref';
+              
+    /**
+      Proj4php.defs is a collection of coordinate system definition objects in the
+      PROJ.4 command line format.
+      Generally a def is added by means of a separate .js file for example:
+
+      <SCRIPT type="text/javascript" src="defs/EPSG26912.js"></SCRIPT>
+
+      def is a CS definition in PROJ.4 WKT format, for example:
+      +proj="tmerc"   //longlat, etc.
+      +a=majorRadius
+      +b=minorRadius
+      +lat0=somenumber
+      +long=somenumber
+     */
+    protected function initDefs() {
+        // These are so widely used, we'll go ahead and throw them in
+        // without requiring a separate .js file
+        self::$defs['WGS84'] = "+title=long/lat:WGS84 +proj=longlat +ellps=WGS84 +datum=WGS84 +units=degrees";
+        self::$defs['EPSG:4326'] = "+title=long/lat:WGS84 +proj=longlat +a=6378137.0 +b=6356752.31424518 +ellps=WGS84 +datum=WGS84 +units=degrees";
+        self::$defs['EPSG:4269'] = "+title=long/lat:NAD83 +proj=longlat +a=6378137.0 +b=6356752.31414036 +ellps=GRS80 +datum=NAD83 +units=degrees";
+        self::$defs['EPSG:3875'] = "+title= Google Mercator +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs";
+        self::$defs['EPSG:3785'] = self::$defs['EPSG:3875'];
+        self::$defs['GOOGLE']    = self::$defs['EPSG:3875'];
+        self::$defs['EPSG:900913'] = self::$defs['EPSG:3875'];
+        self::$defs['EPSG:102113'] = self::$defs['EPSG:3875'];
+    }
+
+    //lookup table to go from the projection name in WKT to the Proj4php projection name
+    //build this out as required
+    protected function initWKTProjections() {
+        self::$wktProjections["Lambert Tangential Conformal Conic Projection"] = "lcc";
+        self::$wktProjections["Mercator"] = "merc";
+        self::$wktProjections["Mercator_1SP"] = "merc";
+        self::$wktProjections["Transverse_Mercator"] = "tmerc";
+        self::$wktProjections["Transverse Mercator"] = "tmerc";
+        self::$wktProjections["Lambert Azimuthal Equal Area"] = "laea";
+        self::$wktProjections["Universal Transverse Mercator System"] = "utm";
+    }
+
+    protected function initDatum() {
+        self::$datum["WGS84"] = array( 'towgs84' => "0,0,0", 'ellipse' => "WGS84", 'datumName' => "WGS84" );
+        self::$datum["GGRS87"] = array( 'towgs84' => "-199.87,74.79,246.62", 'ellipse' => "GRS80", 'datumName' => "Greek_Geodetic_Reference_System_1987" );
+        self::$datum["NAD83"] = array( 'towgs84' => "0,0,0", 'ellipse' => "GRS80", 'datumName' => "North_American_Datum_1983" );
+        self::$datum["NAD27"] = array( 'nadgrids' => "@conus,@alaska,@ntv2_0.gsb,@ntv1_can.dat", 'ellipse' => "clrk66", 'datumName' => "North_American_Datum_1927" );
+        self::$datum["potsdam"] = array( 'towgs84' => "606.0,23.0,413.0", 'ellipse' => "bessel", 'datumName' => "Potsdam Rauenberg 1950 DHDN" );
+        self::$datum["carthage"] = array( 'towgs84' => "-263.0,6.0,431.0", 'ellipse' => "clark80", 'datumName' => "Carthage 1934 Tunisia" );
+        self::$datum["hermannskogel"] = array( 'towgs84' => "653.0,-212.0,449.0", 'ellipse' => "bessel", 'datumName' => "Hermannskogel" );
+        self::$datum["ire65"] = array( 'towgs84' => "482.530,-130.596,564.557,-1.042,-0.214,-0.631,8.15", 'ellipse' => "mod_airy", 'datumName' => "Ireland 1965" );
+        self::$datum["nzgd49"] = array( 'towgs84' => "59.47,-5.04,187.44,0.47,-0.1,1.024,-4.5993", 'ellipse' => "intl", 'datumName' => "New Zealand Geodetic Datum 1949" );
+        self::$datum["OSGB36"] = array( 'towgs84' => "446.448,-125.157,542.060,0.1502,0.2470,0.8421,-20.4894", 'ellipse' => "airy", 'datumName' => "Airy 1830" );
+    }
+
+    protected function initEllipsoid() {
+        self::$ellipsoid["MERIT"] = array( 'a' => 6378137.0, 'rf' => 298.257, 'ellipseName' => "MERIT 1983" );
+        self::$ellipsoid["SGS85"] = array( 'a' => 6378136.0, 'rf' => 298.257, 'ellipseName' => "Soviet Geodetic System 85" );
+        self::$ellipsoid["GRS80"] = array( 'a' => 6378137.0, 'rf' => 298.257222101, 'ellipseName' => "GRS 1980(IUGG, 1980)" );
+        self::$ellipsoid["IAU76"] = array( 'a' => 6378140.0, 'rf' => 298.257, 'ellipseName' => "IAU 1976" );
+        self::$ellipsoid["airy"] = array( 'a' => 6377563.396, 'b' => 6356256.910, 'ellipseName' => "Airy 1830" );
+        self::$ellipsoid["APL4."] = array( 'a' => 6378137, 'rf' => 298.25, 'ellipseName' => "Appl. Physics. 1965" );
+        self::$ellipsoid["NWL9D"] = array( 'a' => 6378145.0, 'rf' => 298.25, 'ellipseName' => "Naval Weapons Lab., 1965" );
+        self::$ellipsoid["mod_airy"] = array( 'a' => 6377340.189, 'b' => 6356034.446, 'ellipseName' => "Modified Airy" );
+        self::$ellipsoid["andrae"] = array( 'a' => 6377104.43, 'rf' => 300.0, 'ellipseName' => "Andrae 1876 (Den., Iclnd.)" );
+        self::$ellipsoid["aust_SA"] = array( 'a' => 6378160.0, 'rf' => 298.25, 'ellipseName' => "Australian Natl & S. Amer. 1969" );
+        self::$ellipsoid["GRS67"] = array( 'a' => 6378160.0, 'rf' => 298.2471674270, 'ellipseName' => "GRS 67(IUGG 1967)" );
+        self::$ellipsoid["bessel"] = array( 'a' => 6377397.155, 'rf' => 299.1528128, 'ellipseName' => "Bessel 1841" );
+        self::$ellipsoid["bess_nam"] = array( 'a' => 6377483.865, 'rf' => 299.1528128, 'ellipseName' => "Bessel 1841 (Namibia)" );
+        self::$ellipsoid["clrk66"] = array( 'a' => 6378206.4, 'b' => 6356583.8, 'ellipseName' => "Clarke 1866" );
+        self::$ellipsoid["clrk80"] = array( 'a' => 6378249.145, 'rf' => 293.4663, 'ellipseName' => "Clarke 1880 mod." );
+        self::$ellipsoid["CPM"] = array( 'a' => 6375738.7, 'rf' => 334.29, 'ellipseName' => "Comm. des Poids et Mesures 1799" );
+        self::$ellipsoid["delmbr"] = array( 'a' => 6376428.0, 'rf' => 311.5, 'ellipseName' => "Delambre 1810 (Belgium)" );
+        self::$ellipsoid["engelis"] = array( 'a' => 6378136.05, 'rf' => 298.2566, 'ellipseName' => "Engelis 1985" );
+        self::$ellipsoid["evrst30"] = array( 'a' => 6377276.345, 'rf' => 300.8017, 'ellipseName' => "Everest 1830" );
+        self::$ellipsoid["evrst48"] = array( 'a' => 6377304.063, 'rf' => 300.8017, 'ellipseName' => "Everest 1948" );
+        self::$ellipsoid["evrst56"] = array( 'a' => 6377301.243, 'rf' => 300.8017, 'ellipseName' => "Everest 1956" );
+        self::$ellipsoid["evrst69"] = array( 'a' => 6377295.664, 'rf' => 300.8017, 'ellipseName' => "Everest 1969" );
+        self::$ellipsoid["evrstSS"] = array( 'a' => 6377298.556, 'rf' => 300.8017, 'ellipseName' => "Everest (Sabah & Sarawak)" );
+        self::$ellipsoid["fschr60"] = array( 'a' => 6378166.0, 'rf' => 298.3, 'ellipseName' => "Fischer (Mercury Datum) 1960" );
+        self::$ellipsoid["fschr60m"] = array( 'a' => 6378155.0, 'rf' => 298.3, 'ellipseName' => "Fischer 1960" );
+        self::$ellipsoid["fschr68"] = array( 'a' => 6378150.0, 'rf' => 298.3, 'ellipseName' => "Fischer 1968" );
+        self::$ellipsoid["helmert"] = array( 'a' => 6378200.0, 'rf' => 298.3, 'ellipseName' => "Helmert 1906" );
+        self::$ellipsoid["hough"] = array( 'a' => 6378270.0, 'rf' => 297.0, 'ellipseName' => "Hough" );
+        self::$ellipsoid["intl"] = array( 'a' => 6378388.0, 'rf' => 297.0, 'ellipseName' => "International 1909 (Hayford)" );
+        self::$ellipsoid["kaula"] = array( 'a' => 6378163.0, 'rf' => 298.24, 'ellipseName' => "Kaula 1961" );
+        self::$ellipsoid["lerch"] = array( 'a' => 6378139.0, 'rf' => 298.257, 'ellipseName' => "Lerch 1979" );
+        self::$ellipsoid["mprts"] = array( 'a' => 6397300.0, 'rf' => 191.0, 'ellipseName' => "Maupertius 1738" );
+        self::$ellipsoid["new_intl"] = array( 'a' => 6378157.5, 'b' => 6356772.2, 'ellipseName' => "New International 1967" );
+        self::$ellipsoid["plessis"] = array( 'a' => 6376523.0, 'rf' => 6355863.0, 'ellipseName' => "Plessis 1817 (France)" );
+        self::$ellipsoid["krass"] = array( 'a' => 6378245.0, 'rf' => 298.3, 'ellipseName' => "Krassovsky, 1942" );
+        self::$ellipsoid["SEasia"] = array( 'a' => 6378155.0, 'b' => 6356773.3205, 'ellipseName' => "Southeast Asia" );
+        self::$ellipsoid["walbeck"] = array( 'a' => 6376896.0, 'b' => 6355834.8467, 'ellipseName' => "Walbeck" );
+        self::$ellipsoid["WGS60"] = array( 'a' => 6378165.0, 'rf' => 298.3, 'ellipseName' => "WGS 60" );
+        self::$ellipsoid["WGS66"] = array( 'a' => 6378145.0, 'rf' => 298.25, 'ellipseName' => "WGS 66" );
+        self::$ellipsoid["WGS72"] = array( 'a' => 6378135.0, 'rf' => 298.26, 'ellipseName' => "WGS 72" );
+        self::$ellipsoid["WGS84"] = array( 'a' => 6378137.0, 'rf' => 298.257223563, 'ellipseName' => "WGS 84" );
+        self::$ellipsoid["sphere"] = array( 'a' => 6370997.0, 'b' => 6370997.0, 'ellipseName' => "Normal Sphere (r=6370997)" );
+    }
+
+    protected function initPrimeMeridian() {
+        self::$primeMeridian["greenwich"] = '0.0';               //"0dE",
+        self::$primeMeridian["lisbon"] = -9.131906111111;   //"9d07'54.862\"W",
+        self::$primeMeridian["paris"] = 2.337229166667;   //"2d20'14.025\"E",
+        self::$primeMeridian["bogota"] = -74.080916666667;  //"74d04'51.3\"W",
+        self::$primeMeridian["madrid"] = -3.687938888889;  //"3d41'16.58\"W",
+        self::$primeMeridian["rome"] = 12.452333333333;  //"12d27'8.4\"E",
+        self::$primeMeridian["bern"] = 7.439583333333;  //"7d26'22.5\"E",
+        self::$primeMeridian["jakarta"] = 106.807719444444;  //"106d48'27.79\"E",
+        self::$primeMeridian["ferro"] = -17.666666666667;  //"17d40'W",
+        self::$primeMeridian["brussels"] = 4.367975;        //"4d22'4.71\"E",
+        self::$primeMeridian["stockholm"] = 18.058277777778;  //"18d3'29.8\"E",
+        self::$primeMeridian["athens"] = 23.7163375;       //"23d42'58.815\"E",
+        self::$primeMeridian["oslo"] = 10.722916666667;  //"10d43'22.5\"E"
+    }
+
+    /**
+     *
+     */
+    public function __construct() {
+
+        $this->initWKTProjections();
+        $this->initDefs();
+        $this->initDatum();
+        $this->initEllipsoid();
+        $this->initPrimeMeridian();
+
+        self::$proj['longlat'] = new proj4phpLongLat();
+        self::$proj['identity'] = new proj4phpLongLat();
+        self::$common = new proj4phpCommon();
+        self::$WGS84 = new Proj4phpProj( 'WGS84' );
+    }
+
+    /**
+     * Method: transform(source, dest, point)
+     * Transform a point coordinate from one map projection to another.  This is
+     * really the only public method you should need to use.
+     *
+     * Parameters:
+     * source - {Proj4phpProj} source map projection for the transformation
+     * dest - {Proj4phpProj} destination map projection for the transformation
+     * point - {Object} point to transform, may be geodetic (long, lat) or
+     *     projected Cartesian (x,y), but should always have x,y properties.
+     */
+    public function transform( $source, $dest, $point) {
+        $this->msg = '';
+        if( !$source->readyToUse ) {
+            self::reportError( "Proj4php initialization for:" . $source->srsCode . " not yet complete" );
+            return $point;
+        }
+        if( !$dest->readyToUse ) {
+            self::reportError( "Proj4php initialization for:" . $dest->srsCode . " not yet complete" );
+            return $point;
+        }
+
+        // DGR, 2010/11/12
+
+        if( $source->axis != "enu" ) {
+            $this->adjust_axis( $source, false, $point );
+        }
+
+        // Transform source points to long/lat, if they aren't already.
+        if( $source->projName == "longlat" ) {
+            $point->x *= Proj4php::$common->D2R;  // convert degrees to radians
+            $point->y *= Proj4php::$common->D2R;
+        } else {
+            if( isset($source->to_meter) )
+            {
+                $point->x *= $source->to_meter;
+                $point->y *= $source->to_meter;
+            }
+            $source->inverse( $point ); // Convert Cartesian to longlat
+        }
+        // Adjust for the prime meridian if necessary
+        if( isset( $source->from_greenwich ) ) {
+            $point->x += $source->from_greenwich;
+        }
+
+        // Convert datums if needed, and if possible.
+        $point = $this->datum_transform( $source->datum, $dest->datum, $point );
+
+        // Adjust for the prime meridian if necessary
+        if( isset( $dest->from_greenwich ) ) {
+            $point->x -= $dest->from_greenwich;
+        }
+
+        if( $dest->projName == "longlat" ) {
+            // convert radians to decimal degrees
+            $point->x *= Proj4php::$common->R2D;
+            $point->y *= Proj4php::$common->R2D;
+        } else {               // else project
+            $dest->forward( $point );
+            if( isset($dest->to_meter) ) {
+                $point->x /= $dest->to_meter;
+                $point->y /= $dest->to_meter;
+            }
+        }
+
+        // DGR, 2010/11/12
+        if( $dest->axis != "enu" ) {
+            $this->adjust_axis( $dest, true, $point );
+        }
+
+        // Nov 2014 - changed Werner Schäffer
+        // clone point to avoid a lot of problems
+        return (clone $point);
+
+    }
+
+    /** datum_transform()
+      source coordinate system definition,
+      destination coordinate system definition,
+      point to transform in geodetic coordinates (long, lat, height)
+     */
+    public function datum_transform( $source, $dest, $point ) {
+
+        // Short cut if the datums are identical.
+        if( $source->compare_datums( $dest ) ) {
+            return $point; // in this case, zero is sucess,
+            // whereas cs_compare_datums returns 1 to indicate TRUE
+            // confusing, should fix this
+        }
+
+        // Explicitly skip datum transform by setting 'datum=none' as parameter for either source or dest
+        if( $source->datum_type == Proj4php::$common->PJD_NODATUM
+            || $dest->datum_type == Proj4php::$common->PJD_NODATUM ) {
+            return $point;
+        }
+
+        /*
+        // If this datum requires grid shifts, then apply it to geodetic coordinates.
+        if( $source->datum_type == Proj4php::$common->PJD_GRIDSHIFT ) {
+            throw(new Exception( "ERROR: Grid shift transformations are not implemented yet." ));
+        }
+
+        if( $dest->datum_type == Proj4php::$common->PJD_GRIDSHIFT ) {
+            throw(new Exception( "ERROR: Grid shift transformations are not implemented yet." ));
+        }
+        */
+
+        // Do we need to go through geocentric coordinates?
+        if( $source->es != $dest->es || $source->a != $dest->a
+            || $source->datum_type == Proj4php::$common->PJD_3PARAM
+            || $source->datum_type == Proj4php::$common->PJD_7PARAM
+            || $dest->datum_type == Proj4php::$common->PJD_3PARAM
+            || $dest->datum_type == Proj4php::$common->PJD_7PARAM ) {
+
+            // Convert to geocentric coordinates.
+            $source->geodetic_to_geocentric( $point );
+            // CHECK_RETURN;
+            // Convert between datums
+            if( $source->datum_type == Proj4php::$common->PJD_3PARAM || $source->datum_type == Proj4php::$common->PJD_7PARAM ) {
+                $source->geocentric_to_wgs84( $point );
+                // CHECK_RETURN;
+            }
+
+            if( $dest->datum_type == Proj4php::$common->PJD_3PARAM || $dest->datum_type == Proj4php::$common->PJD_7PARAM ) {
+                $dest->geocentric_from_wgs84( $point );
+                // CHECK_RETURN;
+            }
+
+            // Convert back to geodetic coordinates
+            $dest->geocentric_to_geodetic( $point );
+            // CHECK_RETURN;
+        }
+
+        // Apply grid shift to destination if required
+        /*
+        if( $dest->datum_type == Proj4php::$common->PJD_GRIDSHIFT ) {
+            throw(new Exception( "ERROR: Grid shift transformations are not implemented yet." ));
+            // pj_apply_gridshift( pj_param(dest.params,"snadgrids").s, 1, point);
+            // CHECK_RETURN;
+        }
+        */
+        return $point;
+    }
+
+
+    /**
+     * Function: adjust_axis
+     * Normalize or de-normalized the x/y/z axes.  The normal form is "enu"
+     * (easting, northing, up).
+     * Parameters:
+     * crs {Proj4php.Proj} the coordinate reference system
+     * denorm {Boolean} when false, normalize
+     * point {Object} the coordinates to adjust
+     */
+    public function adjust_axis( $crs, $denorm, $point ) {
+        
+        $xin = $point->x;
+        $yin = $point->y;
+        $zin = isset( $point->z ) ? $point->z : 0.0;
+        #$v;
+        #$t;
+        for( $i = 0; $i < 3; $i++ ) {
+            if( $denorm && $i == 2 && !isset( $point->z ) ) {
+                continue;
+            }
+            if( $i == 0 ) {
+                $v = $xin;
+                $t = 'x';
+            } else if( $i == 1 ) {
+                $v = $yin;
+                $t = 'y';
+            } else {
+                $v = $zin;
+                $t = 'z';
+            }
+            switch( $crs->axis[$i] ) {
+                case 'e':
+                    $point[$t] = $v;
+                    break;
+                case 'w':
+                    $point[$t] = -$v;
+                    break;
+                case 'n':
+                    $point[$t] = $v;
+                    break;
+                case 's':
+                    $point[$t] = -$v;
+                    break;
+                case 'u':
+                    if( isset( $point[$t] ) ) {
+                        $point->z = $v;
+                    }
+                    break;
+                case 'd':
+                    if( isset( $point[$t] ) ) {
+                        $point->z = -$v;
+                    }
+                    break;
+                default :
+                    throw(new Exception( "ERROR: unknow axis (" . $crs->axis[$i] . ") - check definition of " . $crs->projName ));
+                    return null;
+            }
+        }
+        return $point;
+    }
+
+    /**
+     * Function: reportError
+     * An internal method to report errors back to user.
+     * Override this in applications to report error messages or throw exceptions.
+     */
+    public static function reportError( $msg ) {
+        throw(new Exception($msg));
+    }
+
+    /**
+     * Function : loadScript
+     * adapted from original. PHP is simplier.
+     */
+    public static function loadScript( $filename, $onload = null, $onfail = null, $loadCheck = null ) {
+        
+        if( stripos($filename, 'http://') !== false ) {
+            return @file_get_contents($filename);
+        }
+        elseif( file_exists( $filename ) ) {
+            require_once($filename);
+            return true;
+        }
+        else {
+            throw(new Exception( "File $filename could not be found or was not able to be loaded." ));
+        }
+    }
+
+    /**
+     * Function: extend
+     * Copy all properties of a source object to a destination object.  Modifies
+     *     the passed in destination object.  Any properties on the source object
+     *     that are set to undefined will not be (re)set on the destination object.
+     *
+     * Parameters:
+     * destination - {Object} The object that will be modified
+     * source - {Object} The object with properties to be set on the destination
+     *
+     * Returns:
+     * {Object} The destination object.
+     */
+    public static function extend( $destination, $source ) {
+        if( $source != null )
+            foreach( $source as $key => $value ) {
+                $destination->$key = $value;
+            }
+        return $destination;
+    }
+
+}
 \ No newline at end of file
@@ -0,0 +1,389 @@
+<?php
+
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4js from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodmap.com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+class Proj4phpCommon {
+
+    public $PI = M_PI; #3.141592653589793238; //Math.PI,
+    public $HALF_PI = M_PI_2; #1.570796326794896619; //Math.PI*0.5,
+    public $TWO_PI = 6.283185307179586477; //Math.PI*2,
+    public $FORTPI = 0.78539816339744833;
+    public $R2D = 57.29577951308232088;
+    public $D2R = 0.01745329251994329577;
+    public $SEC_TO_RAD = 4.84813681109535993589914102357e-6; /* SEC_TO_RAD = Pi/180/3600 */
+    public $EPSLN = 1.0e-10;
+    public $MAX_ITER = 20;
+    // following constants from geocent.c
+    public $COS_67P5 = 0.38268343236508977;  /* cosine of 67.5 degrees */
+    public $AD_C = 1.0026000;                /* Toms region 1 constant */
+
+    /* datum_type values */
+    public $PJD_UNKNOWN = 0;
+    public $PJD_3PARAM = 1;
+    public $PJD_7PARAM = 2;
+    public $PJD_GRIDSHIFT = 3;
+    public $PJD_WGS84 = 4;   // WGS84 or equivalent
+    public $PJD_NODATUM = 5;   // WGS84 or equivalent
+
+    const SRS_WGS84_SEMIMAJOR = 6378137.0;  // only used in grid shift transforms
+
+    // ellipoid pj_set_ell.c
+
+    public $SIXTH = .1666666666666666667; /* 1/6 */
+    public $RA4 = .04722222222222222222; /* 17/360 */
+    public $RA6 = .02215608465608465608; /* 67/3024 */
+    public $RV4 = .06944444444444444444; /* 5/72 */
+    public $RV6 = .04243827160493827160; /* 55/1296 */
+
+
+    /* meridinal distance for ellipsoid and inverse
+     * *	8th degree - accurate to < 1e-5 meters when used in conjuction
+     * *		with typical major axis values.
+     * *	Inverse determines phi to EPS (1e-11) radians, about 1e-6 seconds.
+     */
+    protected $C00 = 1.0;
+    protected $C02 = .25;
+    protected $C04 = .046875;
+    protected $C06 = .01953125;
+    protected $C08 = .01068115234375;
+    protected $C22 = .75;
+    protected $C44 = .46875;
+    protected $C46 = .01302083333333333333;
+    protected $C48 = .00712076822916666666;
+    protected $C66 = .36458333333333333333;
+    protected $C68 = .00569661458333333333;
+    protected $C88 = .3076171875;
+
+    /**
+     * Function to compute the constant small m which is the radius of
+     * a parallel of latitude, phi, divided by the semimajor axis.
+     * 
+     * @param type $eccent
+     * @param type $sinphi
+     * @param type $cosphi
+     * @return type
+     */
+    public function msfnz( $eccent, $sinphi, $cosphi ) {
+        
+        $con = $eccent * $sinphi;
+        
+        return $cosphi / (sqrt( 1.0 - $con * $con ));
+    }
+
+    /**
+     * Function to compute the constant small t for use in the forward
+     * computations in the Lambert Conformal Conic and the Polar
+     * Stereographic projections.
+     * 
+     * @param type $eccent
+     * @param type $phi
+     * @param type $sinphi
+     * @return type
+     */
+    public function tsfnz( $eccent, $phi, $sinphi ) {
+        
+        $con = $eccent * $sinphi;
+        $com = 0.5 * $eccent;
+        $con = pow( ((1.0 - $con) / (1.0 + $con) ), $com );
+        
+        return (tan( .5 * (M_PI_2 - $phi) ) / $con);
+    }
+
+    /**
+     * Function to compute the latitude angle, phi2, for the inverse of the
+     * Lambert Conformal Conic and Polar Stereographic projections.
+     * 
+     * rise up an assertion if there is no convergence.
+     * 
+     * @param type $eccent
+     * @param type $ts
+     * @return type
+     */
+    public function phi2z( $eccent, $ts ) {
+        
+        $eccnth = .5 * $eccent;
+        $phi = M_PI_2 - 2 * atan( $ts );
+        
+        for( $i = 0; $i <= 15; $i++ ) {
+            $con = $eccent * sin( $phi );
+            $dphi = M_PI_2 - 2 * atan( $ts * (pow( ((1.0 - $con) / (1.0 + $con) ), $eccnth )) ) - $phi;
+            $phi += $dphi;
+            if( abs( $dphi ) <= .0000000001 )
+                return $phi;
+        }
+        assert( "false; /* phi2z has NoConvergence */" );
+        
+        return (-9999);
+    }
+
+    /**
+     * Function to compute constant small q which is the radius of a 
+     * parallel of latitude, phi, divided by the semimajor axis.
+     * 
+     * @param type $eccent
+     * @param type $sinphi
+     * @return type
+     */
+    public function qsfnz( $eccent, $sinphi ) {
+        
+        if( $eccent > 1.0e-7 ) {
+            
+            $con = $eccent * $sinphi;
+            
+            return (( 1.0 - $eccent * $eccent) * ($sinphi / (1.0 - $con * $con) - (.5 / $eccent) * log( (1.0 - $con) / (1.0 + $con) )));
+        }
+        
+        return (2.0 * $sinphi);
+    }
+
+    /**
+     * Function to eliminate roundoff errors in asin
+     * 
+     * @param type $x
+     * @return type
+     */
+    public function asinz( $x ) {
+        
+        return asin( 
+            abs( $x ) > 1.0 ? ($x > 1.0 ? 1.0 : -1.0) : $x 
+        );
+        
+        #if( abs( $x ) > 1.0 ) {
+        #    $x = ($x > 1.0) ? 1.0 : -1.0;
+        #}
+        #return asin( $x );
+    }
+
+    /**
+     * following functions from gctpc cproj.c for transverse mercator projections
+     * 
+     * @param type $x
+     * @return type
+     */
+    public function e0fn( $x ) {
+        return (1.0 - 0.25 * $x * (1.0 + $x / 16.0 * (3.0 + 1.25 * $x)));
+    }
+
+    /**
+     * 
+     * @param type $x
+     * @return type
+     */
+    public function e1fn( $x ) {
+        return (0.375 * $x * (1.0 + 0.25 * $x * (1.0 + 0.46875 * $x)));
+    }
+
+    /**
+     * 
+     * @param type $x
+     * @return type
+     */
+    public function e2fn( $x ) {
+        return (0.05859375 * $x * $x * (1.0 + 0.75 * $x));
+    }
+
+    /**
+     * 
+     * @param type $x
+     * @return type
+     */
+    public function e3fn( $x ) {
+        return ($x * $x * $x * (35.0 / 3072.0));
+    }
+
+    /**
+     * 
+     * @param type $e0
+     * @param type $e1
+     * @param type $e2
+     * @param type $e3
+     * @param type $phi
+     * @return type
+     */
+    public function mlfn( $e0, $e1, $e2, $e3, $phi ) {
+        return ($e0 * $phi - $e1 * sin( 2.0 * $phi ) + $e2 * sin( 4.0 * $phi ) - $e3 * sin( 6.0 * $phi ));
+    }
+
+    /**
+     * 
+     * @param type $esinp
+     * @param type $exp
+     * @return type
+     */
+    public function srat( $esinp, $exp ) {
+        return (pow( (1.0 - $esinp) / (1.0 + $esinp), $exp ));
+    }
+
+    /**
+     * Function to return the sign of an argument
+     * 
+     * @param type $x
+     * @return type
+     */
+    public function sign( $x ) {
+        
+        return $x < 0.0 ? -1 : 1;
+    }
+
+    /**
+     * Function to adjust longitude to -180 to 180; input in radians
+     * 
+     * @param type $x
+     * @return type
+     */
+    public function adjust_lon( $x ) {
+        
+        return (abs( $x ) < M_PI) ? $x : ($x - ($this->sign( $x ) * $this->TWO_PI) );
+    }
+
+    /**
+     * IGNF - DGR : algorithms used by IGN France
+     * Function to adjust latitude to -90 to 90; input in radians
+     * 
+     * @param type $x
+     * @return type
+     */
+    public function adjust_lat( $x ) {
+        
+        $x = (abs( $x ) < M_PI_2) ? $x : ($x - ($this->sign( $x ) * M_PI) );
+        
+        return $x;
+    }
+
+    /**
+     * Latitude Isometrique - close to tsfnz ...
+     * 
+     * @param type $eccent
+     * @param float $phi
+     * @param type $sinphi
+     * @return string
+     */
+    public function latiso( $eccent, $phi, $sinphi ) {
+        
+        if( abs( $phi ) > M_PI_2 )
+            return +NaN;
+        if( $phi == M_PI_2 )
+            return INF;
+        if( $phi == -1.0 * M_PI_2 )
+            return -1.0 * INF;
+
+        $con = $eccent * $sinphi;
+        
+        return log( tan( (M_PI_2 + $phi) / 2.0 ) ) + $eccent * log( (1.0 - $con) / (1.0 + $con) ) / 2.0;
+    }
+
+    /**
+     * 
+     * @param type $x
+     * @param type $L
+     * @return type
+     */
+    public function fL( $x, $L ) {
+        return 2.0 * atan( $x * exp( $L ) ) - M_PI_2;
+    }
+
+    /**
+     * Inverse Latitude Isometrique - close to ph2z
+     * 
+     * @param type $eccent
+     * @param type $ts
+     * @return type
+     */
+    public function invlatiso( $eccent, $ts ) {
+        
+        $phi = $this->fL( 1.0, $ts );
+        $Iphi = 0.0;
+        $con = 0.0;
+        
+        do {
+            $Iphi = $phi;
+            $con = $eccent * sin( $Iphi );
+            $phi = $this->fL( exp( $eccent * log( (1.0 + $con) / (1.0 - $con) ) / 2.0 ), $ts );
+        } while( abs( $phi - $Iphi ) > 1.0e-12 );
+        
+        return $phi;
+    }
+
+    /**
+     * Grande Normale
+     * 
+     * @param type $a
+     * @param type $e
+     * @param type $sinphi
+     * @return type
+     */
+    public function gN( $a, $e, $sinphi ) {
+        $temp = $e * $sinphi;
+        return $a / sqrt( 1.0 - $temp * $temp );
+    }
+
+    /**
+     * code from the PROJ.4 pj_mlfn.c file;  this may be useful for other projections
+     * 
+     * @param type $es
+     * @return type
+     */
+    public function pj_enfn( $es ) {
+
+        $en = array( );
+        $en[0] = $this->C00 - $es * ($this->C02 + $es * ($this->C04 + $es * ($this->C06 + $es * $this->C08)));
+        $en[1] = es * ($this->C22 - $es * ($this->C04 + $es * ($this->C06 + $es * $this->C08)));
+        $t = $es * $es;
+        $en[2] = $t * ($this->C44 - $es * ($this->C46 + $es * $this->C48));
+        $t *= $es;
+        $en[3] = $t * ($this->C66 - $es * $this->C68);
+        $en[4] = $t * $es * $this->C88;
+        
+        return $en;
+    }
+
+    /**
+     * 
+     * @param type $phi
+     * @param type $sphi
+     * @param type $cphi
+     * @param type $en
+     * @return type
+     */
+    public function pj_mlfn( $phi, $sphi, $cphi, $en ) {
+        
+        $cphi *= $sphi;
+        $sphi *= $sphi;
+        
+        return ($en[0] * $phi - $cphi * ($en[1] + $sphi * ($en[2] + $sphi * ($en[3] + $sphi * $en[4]))));
+    }
+
+    /**
+     * 
+     * @param type $arg
+     * @param type $es
+     * @param type $en
+     * @return type
+     */
+    public function pj_inv_mlfn( $arg, $es, $en ) {
+        
+        $k = (float) 1 / (1 - $es);
+        $phi = $arg;
+        
+        for( $i = Proj4php::$common->MAX_ITER; $i; --$i ) { /* rarely goes over 2 iterations */
+            $s = sin( $phi );
+            $t = 1. - $es * $s * $s;
+            //$t = $this->pj_mlfn($phi, $s, cos($phi), $en) - $arg;
+            //$phi -= $t * ($t * sqrt($t)) * $k;
+            $t = ($this->pj_mlfn( $phi, $s, cos( $phi ), $en ) - $arg) * ($t * sqrt( $t )) * $k;
+            $phi -= $t;
+            if( abs( $t ) < Proj4php::$common->EPSLN )
+                return $phi;
+        }
+
+        Proj4php::reportError( "cass:pj_inv_mlfn: Convergence error" );
+
+        return $phi;
+    }
+
+}
 \ No newline at end of file
@@ -0,0 +1,401 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4js from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+
+/** datum object
+ */
+class proj4phpDatum {
+
+    public $datum_type;
+    public $datum_params;
+    
+    /**
+     *
+     * @param type $proj 
+     */
+    public function __construct( $proj ) {
+        
+        $this->datum_type = Proj4php::$common->PJD_WGS84;   //default setting
+        
+        if( isset($proj->datumCode) && $proj->datumCode == 'none' ) {
+            $this->datum_type = Proj4php::$common->PJD_NODATUM;
+        }
+        
+        if( isset( $proj->datum_params ) ) {
+            
+            for( $i = 0; $i < sizeof( $proj->datum_params ); $i++ ) {
+                $proj->datum_params[$i] = floatval( $proj->datum_params[$i] );
+            }
+            
+            if( $proj->datum_params[0] != 0 || $proj->datum_params[1] != 0 || $proj->datum_params[2] != 0 ) {
+                $this->datum_type = Proj4php::$common->PJD_3PARAM;
+            }
+            
+            if( sizeof( $proj->datum_params ) > 3 ) {
+                if( $proj->datum_params[3] != 0 || $proj->datum_params[4] != 0 ||
+                    $proj->datum_params[5] != 0 || $proj->datum_params[6] != 0 ) {
+                    
+                    $this->datum_type = Proj4php::$common->PJD_7PARAM;
+                    $proj->datum_params[3] *= Proj4php::$common->SEC_TO_RAD;
+                    $proj->datum_params[4] *= Proj4php::$common->SEC_TO_RAD;
+                    $proj->datum_params[5] *= Proj4php::$common->SEC_TO_RAD;
+                    $proj->datum_params[6] = ($proj->datum_params[6] / 1000000.0) + 1.0;
+                }
+            }
+            
+            $this->datum_params = $proj->datum_params;
+        }
+        if( isset( $proj ) ) {
+            $this->a = $proj->a;    //datum object also uses these values
+            $this->b = $proj->b;
+            $this->es = $proj->es;
+            $this->ep2 = $proj->ep2;
+            #$this->datum_params = $proj->datum_params;
+        }
+    }
+    
+    
+    /**
+     *
+     * @param type $dest
+     * @return boolean Returns TRUE if the two datums match, otherwise FALSE.
+     * @throws type 
+     */
+    public function compare_datums( $dest ) {
+        
+        if( $this->datum_type != $dest->datum_type ) {
+            return false; // false, datums are not equal
+        } else if( $this->a != $dest->a || abs( $this->es - $dest->es ) > 0.000000000050 ) {
+            // the tolerence for es is to ensure that GRS80 and WGS84
+            // are considered identical
+            return false;
+        } else if( $this->datum_type == Proj4php::$common->PJD_3PARAM ) {
+            return ($this->datum_params[0] == $dest->datum_params[0]
+                      && $this->datum_params[1] == $dest->datum_params[1]
+                      && $this->datum_params[2] == $dest->datum_params[2]);
+        } else if( $this->datum_type == Proj4php::$common->PJD_7PARAM ) {
+            return ($this->datum_params[0] == $dest->datum_params[0]
+                      && $this->datum_params[1] == $dest->datum_params[1]
+                      && $this->datum_params[2] == $dest->datum_params[2]
+                      && $this->datum_params[3] == $dest->datum_params[3]
+                      && $this->datum_params[4] == $dest->datum_params[4]
+                      && $this->datum_params[5] == $dest->datum_params[5]
+                      && $this->datum_params[6] == $dest->datum_params[6]);
+        } else if( $this->datum_type == Proj4php::$common->PJD_GRIDSHIFT ||
+            $dest->datum_type == Proj4php::$common->PJD_GRIDSHIFT ) {
+            throw(new Exception( "ERROR: Grid shift transformations are not implemented." ));
+            return false;
+        }
+        
+        return true; // datums are equal
+    }
+
+    /*
+     * The function Convert_Geodetic_To_Geocentric converts geodetic coordinates
+     * (latitude, longitude, and height) to geocentric coordinates (X, Y, Z),
+     * according to the current ellipsoid parameters.
+     *
+     *    Latitude  : Geodetic latitude in radians                     (input)
+     *    Longitude : Geodetic longitude in radians                    (input)
+     *    Height    : Geodetic height, in meters                       (input)
+     *    X         : Calculated Geocentric X coordinate, in meters    (output)
+     *    Y         : Calculated Geocentric Y coordinate, in meters    (output)
+     *    Z         : Calculated Geocentric Z coordinate, in meters    (output)
+     *
+     */
+    public function geodetic_to_geocentric( $p ) {
+        
+        $Longitude = $p->x;
+        $Latitude = $p->y;
+        $Height = isset( $p->z ) ? $p->z : 0;   //Z value not always supplied
+        $Error_Code = 0;  //  GEOCENT_NO_ERROR;
+        
+        /*
+         * * Don't blow up if Latitude is just a little out of the value
+         * * range as it may just be a rounding issue.  Also removed longitude
+         * * test, it should be wrapped by cos() and sin().  NFW for PROJ.4, Sep/2001.
+         */
+        if( $Latitude < -Proj4php::$common->HALF_PI && $Latitude > -1.001 * Proj4php::$common->HALF_PI ) {
+            $Latitude = -Proj4php::$common->HALF_PI;
+        } else if( $Latitude > Proj4php::$common->HALF_PI && $Latitude < 1.001 * Proj4php::$common->HALF_PI ) {
+            $Latitude = Proj4php::$common->HALF_PI;
+        } else if( ($Latitude < -Proj4php::$common->HALF_PI) || ($Latitude > Proj4php::$common->HALF_PI) ) {
+            /* Latitude out of range */
+            Proj4php::reportError( 'geocent:lat out of range:' . $Latitude );
+            return null;
+        }
+
+        if( $Longitude > Proj4php::$common->PI )
+            $Longitude -= (2 * Proj4php::$common->PI);
+        
+        $Sin_Lat = sin( $Latitude ); /*  sin(Latitude)  */
+        $Cos_Lat = cos( $Latitude ); /*  cos(Latitude)  */
+        $Sin2_Lat = $Sin_Lat * $Sin_Lat; /*  Square of sin(Latitude)  */
+        $Rn = $this->a / (sqrt( 1.0e0 - $this->es * $Sin2_Lat )); /*  Earth radius at location  */
+        $p->x = ($Rn + $Height) * $Cos_Lat * cos( $Longitude );
+        $p->y = ($Rn + $Height) * $Cos_Lat * sin( $Longitude );
+        $p->z = (($Rn * (1 - $this->es)) + $Height) * $Sin_Lat;
+        
+        return $Error_Code;
+    }
+
+    
+    /**
+     *
+     * @param object $p
+     * @return type 
+     */
+    public function geocentric_to_geodetic( $p ) {
+        
+        /* local defintions and variables */
+        /* end-criterium of loop, accuracy of sin(Latitude) */
+        $genau = 1.E-12;
+        $genau2 = ($genau * $genau);
+        $maxiter = 30;
+        $X = $p->x;
+        $Y = $p->y;
+        $Z = $p->z ? $p->z : 0.0;   //Z value not always supplied
+        
+        /*
+        $P;        // distance between semi-minor axis and location 
+        $RR;       // distance between center and location
+        $CT;       // sin of geocentric latitude 
+        $ST;       // cos of geocentric latitude 
+        $RX;
+        $RK;
+        $RN;       // Earth radius at location 
+        $CPHI0;    // cos of start or old geodetic latitude in iterations 
+        $SPHI0;    // sin of start or old geodetic latitude in iterations 
+        $CPHI;     // cos of searched geodetic latitude
+        $SPHI;     // sin of searched geodetic latitude 
+        $SDPHI;    // end-criterium: addition-theorem of sin(Latitude(iter)-Latitude(iter-1)) 
+        $At_Pole;     // indicates location is in polar region 
+        $iter;        // of continous iteration, max. 30 is always enough (s.a.) 
+        $Longitude;
+        $Latitude;
+        $Height;
+        */
+        
+        $At_Pole = false;
+        $P = sqrt( $X * $X + $Y * $Y );
+        $RR = sqrt( $X * $X + $Y * $Y + $Z * $Z );
+
+        /*      special cases for latitude and longitude */
+        if( $P / $this->a < $genau ) {
+
+            /*  special case, if P=0. (X=0., Y=0.) */
+            $At_Pole = true;
+            $Longitude = 0.0;
+
+            /*  if (X,Y,Z)=(0.,0.,0.) then Height becomes semi-minor axis
+             *  of ellipsoid (=center of mass), Latitude becomes PI/2 */
+            if( $RR / $this->a < $genau ) {
+                $Latitude = Proj4php::$common->HALF_PI;
+                $Height = -$this->b;
+                return;
+            }
+        } else {
+            /*  ellipsoidal (geodetic) longitude
+             *  interval: -PI < Longitude <= +PI */
+            $Longitude = atan2( $Y, $X );
+        }
+
+        /* --------------------------------------------------------------
+         * Following iterative algorithm was developped by
+         * "Institut für Erdmessung", University of Hannover, July 1988.
+         * Internet: www.ife.uni-hannover.de
+         * Iterative computation of CPHI,SPHI and Height.
+         * Iteration of CPHI and SPHI to 10**-12 radian res$p->
+         * 2*10**-7 arcsec.
+         * --------------------------------------------------------------
+         */
+        $CT = $Z / $RR;
+        $ST = $P / $RR;
+        $RX = 1.0 / sqrt( 1.0 - $this->es * (2.0 - $this->es) * $ST * $ST );
+        $CPHI0 = $ST * (1.0 - $this->es) * $RX;
+        $SPHI0 = $CT * $RX;
+        $iter = 0;
+
+        /* loop to find sin(Latitude) res$p-> Latitude
+         * until |sin(Latitude(iter)-Latitude(iter-1))| < genau */
+        do {
+            ++$iter;
+            $RN = $this->a / sqrt( 1.0 - $this->es * $SPHI0 * $SPHI0 );
+
+            /*  ellipsoidal (geodetic) height */
+            $Height = $P * $CPHI0 + $Z * $SPHI0 - $RN * (1.0 - $this->es * $SPHI0 * $SPHI0);
+
+            $RK = $this->es * $RN / ($RN + $Height);
+            $RX = 1.0 / sqrt( 1.0 - $RK * (2.0 - $RK) * $ST * $ST );
+            $CPHI = $ST * (1.0 - $RK) * $RX;
+            $SPHI = $CT * $RX;
+            $SDPHI = $SPHI * $CPHI0 - $CPHI * $SPHI0;
+            $CPHI0 = $CPHI;
+            $SPHI0 = $SPHI;
+        } while( $SDPHI * $SDPHI > $genau2 && $iter < $maxiter );
+
+        /*      ellipsoidal (geodetic) latitude */
+        $Latitude = atan( $SPHI / abs( $CPHI ) );
+
+        $p->x = $Longitude;
+        $p->y = $Latitude;
+        $p->z = $Height;
+        
+        return $p;
+    }
+
+    /** 
+     * Convert_Geocentric_To_Geodetic
+     * The method used here is derived from 'An Improved Algorithm for
+     * Geocentric to Geodetic Coordinate Conversion', by Ralph Toms, Feb 1996
+     * 
+     * @param object Point $p
+     * @return object Point $p
+     */
+    public function geocentric_to_geodetic_noniter( $p ) {
+        
+        /*
+        $Longitude;
+        $Latitude;
+        $Height;
+        
+        $W;        // distance from Z axis 
+        $W2;       // square of distance from Z axis 
+        $T0;       // initial estimate of vertical component 
+        $T1;       // corrected estimate of vertical component 
+        $S0;       // initial estimate of horizontal component 
+        $S1;       // corrected estimate of horizontal component
+        $Sin_B0;   // sin(B0), B0 is estimate of Bowring aux variable 
+        $Sin3_B0;  // cube of sin(B0) 
+        $Cos_B0;   // cos(B0)
+        $Sin_p1;   // sin(phi1), phi1 is estimated latitude 
+        $Cos_p1;   // cos(phi1) 
+        $Rn;       // Earth radius at location 
+        $Sum;      // numerator of cos(phi1) 
+        $At_Pole;  // indicates location is in polar region 
+        */
+        
+        $X = floatval( $p->x );  // cast from string to float
+        $Y = floatval( $p->y );
+        $Z = floatval( $p->z ? $p->z : 0 );
+
+        $At_Pole = false;
+        if( $X <> 0.0 ) {
+            $Longitude = atan2( $Y, $X );
+        } else {
+            if( $Y > 0 ) {
+                $Longitude = Proj4php::$common->HALF_PI;
+            } else if( Y < 0 ) {
+                $Longitude = -Proj4php::$common->HALF_PI;
+            } else {
+                $At_Pole = true;
+                $Longitude = 0.0;
+                if( $Z > 0.0 ) { /* north pole */
+                    $Latitude = Proj4php::$common->HALF_PI;
+                } else if( Z < 0.0 ) { /* south pole */
+                    $Latitude = -Proj4php::$common->HALF_PI;
+                } else { /* center of earth */
+                    $Latitude = Proj4php::$common->HALF_PI;
+                    $Height = -$this->b;
+                    return;
+                }
+            }
+        }
+        $W2 = $X * $X + $Y * $Y;
+        $W = sqrt( $W2 );
+        $T0 = $Z * Proj4php::$common->AD_C;
+        $S0 = sqrt( $T0 * $T0 + $W2 );
+        $Sin_B0 = $T0 / $S0;
+        $Cos_B0 = $W / $S0;
+        $Sin3_B0 = $Sin_B0 * $Sin_B0 * $Sin_B0;
+        $T1 = $Z + $this->b * $this->ep2 * $Sin3_B0;
+        $Sum = $W - $this->a * $this->es * $Cos_B0 * $Cos_B0 * $Cos_B0;
+        $S1 = sqrt( $T1 * $T1 + $Sum * $Sum );
+        $Sin_p1 = $T1 / $S1;
+        $Cos_p1 = $Sum / $S1;
+        $Rn = $this->a / sqrt( 1.0 - $this->es * $Sin_p1 * $Sin_p1 );
+        if( $Cos_p1 >= Proj4php::$common->COS_67P5 ) {
+            $Height = $W / $Cos_p1 - $Rn;
+        } else if( $Cos_p1 <= -Proj4php::$common->COS_67P5 ) {
+            $Height = $W / -$Cos_p1 - $Rn;
+        } else {
+            $Height = $Z / $Sin_p1 + $Rn * ($this->es - 1.0);
+        }
+        if( $At_Pole == false ) {
+            $Latitude = atan( $Sin_p1 / $Cos_p1 );
+        }
+        
+        $p->x = $Longitude;
+        $p->y = $Latitude;
+        $p->z = $Height;
+        
+        return $p;
+    }
+
+    /************************************************************** */
+    // pj_geocentic_to_wgs84( p )
+    //  p = point to transform in geocentric coordinates (x,y,z)
+    public function geocentric_to_wgs84( $p ) {
+
+        if( $this->datum_type == Proj4php::$common->PJD_3PARAM ) {
+            // if( x[io] == HUGE_VAL )
+            //    continue;
+            $p->x += $this->datum_params[0];
+            $p->y += $this->datum_params[1];
+            $p->z += $this->datum_params[2];
+        } else if( $this->datum_type == Proj4php::$common->PJD_7PARAM ) {
+            $Dx_BF = $this->datum_params[0];
+            $Dy_BF = $this->datum_params[1];
+            $Dz_BF = $this->datum_params[2];
+            $Rx_BF = $this->datum_params[3];
+            $Ry_BF = $this->datum_params[4];
+            $Rz_BF = $this->datum_params[5];
+            $M_BF = $this->datum_params[6];
+            // if( x[io] == HUGE_VAL )
+            //    continue;
+            $p->x = $M_BF * ( $p->x - $Rz_BF * $p->y + $Ry_BF * $p->z) + $Dx_BF;
+            $p->y = $M_BF * ( $Rz_BF * $p->x + $p->y - $Rx_BF * $p->z) + $Dy_BF;
+            $p->z = $M_BF * (-$Ry_BF * $p->x + $Rx_BF * $p->y + $p->z) + $Dz_BF;
+        }
+    }
+
+    /*************************************************************** */
+
+    // pj_geocentic_from_wgs84()
+    //  coordinate system definition,
+    //  point to transform in geocentric coordinates (x,y,z)
+    public function geocentric_from_wgs84( $p ) {
+
+        if( $this->datum_type == Proj4php::$common->PJD_3PARAM ) {
+            //if( x[io] == HUGE_VAL )
+            //    continue;
+            $p->x -= $this->datum_params[0];
+            $p->y -= $this->datum_params[1];
+            $p->z -= $this->datum_params[2];
+        } else if( $this->datum_type == Proj4php::$common->PJD_7PARAM ) {
+            $Dx_BF = $this->datum_params[0];
+            $Dy_BF = $this->datum_params[1];
+            $Dz_BF = $this->datum_params[2];
+            $Rx_BF = $this->datum_params[3];
+            $Ry_BF = $this->datum_params[4];
+            $Rz_BF = $this->datum_params[5];
+            $M_BF = $this->datum_params[6];
+            $x_tmp = ($p->x - $Dx_BF) / $M_BF;
+            $y_tmp = ($p->y - $Dy_BF) / $M_BF;
+            $z_tmp = ($p->z - $Dz_BF) / $M_BF;
+            //if( x[io] == HUGE_VAL )
+            //    continue;
+
+            $p->x = $x_tmp + $Rz_BF * $y_tmp - $Ry_BF * $z_tmp;
+            $p->y = -$Rz_BF * $x_tmp + $y_tmp + $Rx_BF * $z_tmp;
+            $p->z = $Ry_BF * $x_tmp - $Rx_BF * $y_tmp + $z_tmp;
+        } //cs_geocentric_from_wgs84()
+    }
+
+}
+
@@ -0,0 +1,23 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4js from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodmap.com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+class proj4phpLongLat {
+
+    public function init() {
+        
+    }
+
+    public function forward( $pt ) {
+        return $pt;
+    }
+
+    public function inverse( $pt ) {
+        return $pt;
+    }
+
+}
 \ No newline at end of file
@@ -0,0 +1,86 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4js from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodmap.com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+
+/** 
+ * point object, nothing fancy, just allows values to be
+ * passed back and forth by reference rather than by value.
+ * Other point classes may be used as long as they have
+ * x and y properties, which will get modified in the transform method.
+*/
+class proj4phpPoint {
+
+    public $x;
+    public $y;
+    public $z;
+
+    /**
+     * Constructor: Proj4js.Point
+     *
+     * Parameters:
+     * - x {float} or {Array} either the first coordinates component or
+     *     the full coordinates
+     * - y {float} the second component
+     * - z {float} the third component, optional.
+     */
+    public function __construct( $x = null, $y = null, $z = null ) {
+        
+        if( is_array( $x ) ) {
+            $this->x = $x[0];
+            $this->y = $x[1];
+            $this->z = isset($x[2]) ? $x[2] : 0.0;#(count( $x ) > 2) ? $x[2] : 0.0;
+        } else if( is_string( $x ) && !is_numeric( $y ) ) {
+            $coord = explode( ' ', $x );
+            $this->x = floatval( $coord[0] );
+            $this->y = floatval( $coord[1] );
+            $this->z = (count( $coord ) > 2) ? floatval( $coord[2] ) : 0.0;
+        } else {
+            $this->x = $x !== null ? $x : 0.0;
+            $this->y = $y !== null ? $y : 0.0;
+            $this->z = $z !== null ? $z : 0.0;
+        }
+    }
+
+    /**
+     * APIMethod: clone
+     * Build a copy of a Proj4js.Point object.
+     *
+     * renamed because of PHP keyword.
+     * 
+     * Return:
+     * {Proj4js}.Point the cloned point.
+     */
+    public function __clone() {
+        return new Proj4phpPoint( $this->x, $this->y, $this->z );
+    }
+
+    /**
+     * APIMethod: toString
+     * Return a readable string version of the point
+     *
+     * Return:
+     * {String} String representation of Proj4js.Point object. 
+     *           (ex. <i>"x=5,y=42"</i>)
+     */
+    public function toString() {
+        return "x=" . $this->x . ",y=" . $this->y;
+    }
+
+    /**
+     * APIMethod: toShortString
+     * Return a short string version of the point.
+     *
+     * Return:
+     * {String} Shortened String representation of Proj4js.Point object. 
+     *         (ex. <i>"5, 42"</i>)
+     */
+    public function toShortString() {
+        return $this->x . " " . $this->y;
+    }
+
+}
 \ No newline at end of file
@@ -0,0 +1,638 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4js from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodmap.com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+class Proj4phpProj {
+
+    /**
+     * Property: readyToUse
+     * Flag to indicate if initialization is complete for $this Proj object
+     */
+    public $readyToUse = false;
+
+    /**
+     * Property: title
+     * The title to describe the projection
+     */
+    public $title = null;
+
+    /**
+     * Property: projName
+     * The projection class for $this projection, e.g. lcc (lambert conformal conic,
+     * or merc for mercator).  These are exactly equivalent to their Proj4
+     * counterparts.
+     */
+    public $projName = null;
+    
+    /**
+     * Property: projection
+     * The projection object for $this projection. */
+    public $projection = null;
+
+    /**
+     * Property: units
+     * The units of the projection.  Values include 'm' and 'degrees'
+     */
+    public $units = null;
+
+    /**
+     * Property: datum
+     * The datum specified for the projection
+     */
+    public $datum = null;
+
+    /**
+     * Property: x0
+     * The x coordinate origin
+     */
+    public $x0 = 0;
+
+    /**
+     * Property: y0
+     * The y coordinate origin
+     */
+    public $y0 = 0;
+
+    /**
+     * Property: localCS
+     * Flag to indicate if the projection is a local one in which no transforms
+     * are required.
+     */
+    public $localCS = false;
+    
+    /**
+     *
+     * @var type
+     */
+    protected $wktRE = '/^(\w+)\[(.*)\]$/';
+
+    /**
+     * Constructor: initialize
+     * Constructor for Proj4php::Proj objects
+     *
+     * Parameters:
+     * $srsCode - a code for map projection definition parameters.  These are usually
+     * (but not always) EPSG codes.
+     */
+    public function __construct( $srsCode ) {
+        
+        $this->srsCodeInput = $srsCode;
+        //check to see if $this is a WKT string
+        if( (strpos( $srsCode, 'GEOGCS' ) !== false) ||
+            (strpos( $srsCode, 'GEOCCS' ) !== false) ||
+            (strpos( $srsCode, 'PROJCS' ) !== false) ||
+            (strpos( $srsCode, 'LOCAL_CS' ) !== false) ) {
+            $this->parseWKT( $srsCode );
+            $this->deriveConstants();
+            $this->loadProjCode( $this->projName );
+            return;
+        }
+
+        // DGR 2008-08-03 : support urn and url
+        if( strpos( $srsCode, 'urn:' ) === 0 ) {
+            //urn:ORIGINATOR:def:crs:CODESPACE:VERSION:ID
+            $urn = explode( ':', $srsCode );
+            if( ($urn[1] == 'ogc' || $urn[1] == 'x-ogc') &&
+                ($urn[2] == 'def') &&
+                ($urn[3] == 'crs') ) {
+                $srsCode = $urn[4] . ':' . $urn[strlen( $urn ) - 1];
+            }
+        } else if( strpos( $srsCode, 'http://' ) === 0 ) {
+            //url#ID
+            $url = explode( '#', $srsCode );
+            if( preg_match( "/epsg.org/", $url[0] ) ) {
+                // http://www.epsg.org/#
+                $srsCode = 'EPSG:' . $url[1];
+            } else if( preg_match( "/RIG.xml/", $url[0] ) ) {
+                //http://librairies.ign.fr/geoportail/resources/RIG.xml#
+                //http://interop.ign.fr/registers/ign/RIG.xml#
+                $srsCode = 'IGNF:' . $url[1];
+            }
+        }
+        $this->srsCode = strtoupper( $srsCode );
+        if( strpos( $this->srsCode, "EPSG" ) === 0 ) {
+            $this->srsCode = $this->srsCode;
+            $this->srsAuth = 'epsg';
+            $this->srsProjNumber = substr( $this->srsCode, 5 );
+            // DGR 2007-11-20 : authority IGNF
+        } else if( strpos( $this->srsCode, "IGNF" ) === 0 ) {
+            $this->srsCode = $this->srsCode;
+            $this->srsAuth = 'IGNF';
+            $this->srsProjNumber = substr( $this->srsCode, 5 );
+            // DGR 2008-06-19 : pseudo-authority CRS for WMS
+        } else if( strpos( $this->srsCode, "CRS" ) === 0 ) {
+            $this->srsCode = $this->srsCode;
+            $this->srsAuth = 'CRS';
+            $this->srsProjNumber = substr( $this->srsCode, 4 );
+        } else {
+            $this->srsAuth = '';
+            $this->srsProjNumber = $this->srsCode;
+        }
+        $this->loadProjDefinition();
+    }
+
+    /**
+     * Function: loadProjDefinition
+     *    Loads the coordinate system initialization string if required.
+     *    Note that dynamic loading happens asynchronously so an application must
+     *    wait for the readyToUse property is set to true.
+     *    To prevent dynamic loading, include the defs through a script tag in
+     *    your application.
+     *
+     */
+    public function loadProjDefinition() {
+        //check in memory
+        if( array_key_exists( $this->srsCode, Proj4php::$defs ) ) {
+            $this->defsLoaded();
+            return;
+        }
+        //else check for def on the server
+        $filename = dirname( __FILE__ ) . '/defs/' . strtoupper( $this->srsAuth ) . $this->srsProjNumber . '.php';
+
+        try {
+            Proj4php::loadScript( $filename );
+            $this->defsLoaded(); // succes
+            
+        } catch ( Exception $e ) {
+            $this->loadFromService(); // fail
+        }
+    }
+
+    /**
+     * Function: loadFromService
+     *    Creates the REST URL for loading the definition from a web service and
+     *    loads it.
+     *
+     *
+     * DO IT AGAIN. : SHOULD PHP CODE BE GET BY WEBSERVICES ?
+     */
+    public function loadFromService() {
+        
+        //else load from web service
+        $url = Proj4php::$defsLookupService . '/' . $this->srsAuth . '/' . $this->srsProjNumber . '/proj4/';
+        try {
+            Proj4php::$defs[strtoupper($this->srsAuth) . ":" . $this->srsProjNumber] = Proj4php::loadScript( $url );
+        } catch ( Exception $e ) {
+            $this->defsFailed();
+        }
+    }
+
+    /**
+     * Function: defsLoaded
+     * Continues the Proj object initilization once the def file is loaded
+     *
+     */
+    public function defsLoaded() {
+        
+        $this->parseDefs();
+
+        $this->loadProjCode( $this->projName );
+    }
+
+    /**
+     * Function: checkDefsLoaded
+     *    $this is the loadCheck method to see if the def object exists
+     *
+     */
+    public function checkDefsLoaded() {
+        return isset(Proj4php::$defs[$this->srsCode]) && !empty(Proj4php::$defs[$this->srsCode]);
+    }
+
+    /**
+     * Function: defsFailed
+     *    Report an error in loading the defs file, but continue on using WGS84
+     *
+     */
+    public function defsFailed() {
+        Proj4php::reportError( 'failed to load projection definition for: ' . $this->srsCode );
+        Proj4php::$defs[$this->srsCode] = Proj4php::$defs['WGS84'];  //set it to something so it can at least continue
+        $this->defsLoaded();
+    }
+
+    /**
+     * Function: loadProjCode
+     *    Loads projection class code dynamically if required.
+     *     Projection code may be included either through a script tag or in
+     *     a built version of proj4php
+     *
+     * An exception occurs if the projection is not found.
+     */
+    public function loadProjCode( $projName ) {
+        if( array_key_exists( $projName, Proj4php::$proj )) {
+            $this->initTransforms();
+            return;
+        }
+        //the filename for the projection code
+        $filename = dirname( __FILE__ ) . '/projCode/' . $projName . '.php';
+
+        try {
+            Proj4php::loadScript( $filename );
+            $this->loadProjCodeSuccess( $projName );
+
+        } catch ( Exception $e ) {
+            $this->loadProjCodeFailure( $projName );
+        }
+    }
+
+    /**
+     * Function: loadProjCodeSuccess
+     *    Loads any proj dependencies or continue on to final initialization.
+     *
+     */
+    public function loadProjCodeSuccess( $projName ) {
+        
+        if( isset(Proj4php::$proj[$projName]->dependsOn) && !empty(Proj4php::$proj[$projName]->dependsOn)) {
+            $this->loadProjCode( Proj4php::$proj[$projName]->dependsOn );
+        } else {
+            $this->initTransforms();
+        }
+    }
+
+    /**
+     * Function: defsFailed
+     *    Report an error in loading the proj file.  Initialization of the Proj
+     *    object has failed and the readyToUse flag will never be set.
+     *
+     */
+    public function loadProjCodeFailure( $projName ) {
+        Proj4php::reportError( "failed to find projection file for: " . $projName );
+        //TBD initialize with identity transforms so proj will still work?
+    }
+
+    /**
+     * Function: checkCodeLoaded
+     *    $this is the loadCheck method to see if the projection code is loaded
+     *
+     */
+    public function checkCodeLoaded( $projName ) {
+        
+        return isset(Proj4php::$proj[$projName]) && !empty(Proj4php::$proj[$projName]);
+    }
+
+    /**
+     * Function: initTransforms
+     *    Finalize the initialization of the Proj object
+     *
+     */
+    public function initTransforms() {
+        $this->projection = new Proj4php::$proj[$this->projName];
+        Proj4php::extend( $this->projection, $this );
+      // initiate depending class
+
+        if( false !== ($dependsOn = isset($this->projection->dependsOn) && !empty($this->projection->dependsOn) ? $this->projection->dependsOn : false) )
+        {
+            Proj4php::extend( Proj4php::$proj[$dependsOn], $this->projection);
+            Proj4php::$proj[$dependsOn]->init();
+            Proj4php::extend( $this->projection, Proj4php::$proj[$dependsOn] );
+        }
+        $this->init();
+        $this->readyToUse = true;
+    }
+
+    /**
+     *
+     */
+    public function init() {
+        $this->projection->init();
+    }
+
+    /**
+     *
+     * @param type $pt
+     * @return type 
+     */
+    public function forward( $pt ) {
+        return $this->projection->forward( $pt );
+    }
+
+    /**
+     *
+     * @param type $pt
+     * @return type 
+     */
+    public function inverse( $pt ) {
+        return $this->projection->inverse( $pt );
+    }
+
+    /**
+     * Function: parseWKT
+     * Parses a WKT string to get initialization parameters
+     *
+     */
+    public function parseWKT( $wkt ) {
+        
+        if( false === ($match = preg_match( $this->wktRE, $wkt, $wktMatch )) )
+            return;
+        
+        $wktObject = $wktMatch[1];
+        $wktContent = $wktMatch[2];
+        $wktTemp = explode( ",", $wktContent );
+        
+        $wktName = (strtoupper($wktObject) == "TOWGS84") ? "TOWGS84" : array_shift( $wktTemp );
+        $wktName = preg_replace( '/^\"/', "", $wktName );
+        $wktName = preg_replace( '/\"$/', "", $wktName );
+
+        /*
+          $wktContent = implode(",",$wktTemp);
+          $wktArray = explode("],",$wktContent);
+          for ($i=0; i<sizeof($wktArray)-1; ++$i) {
+          $wktArray[$i] .= "]";
+          }
+         */
+
+        $wktArray = array();
+        $bkCount = 0;
+        $obj = "";
+        
+        foreach( $wktTemp as $token ) {
+            
+            $bkCount = substr_count($token, "[") - substr_count($token, "]");
+            
+            // ???
+            $obj .= $token;
+            if( $bkCount === 0 ) {
+                array_push( $wktArray, $obj );
+                $obj = "";
+            } else {
+                $obj .= ",";
+            }
+        }
+
+        //do something based on the type of the wktObject being parsed
+        //add in variations in the spelling as required
+        switch( $wktObject ) {
+            case 'LOCAL_CS':
+                $this->projName = 'identity';
+                $this->localCS = true;
+                $this->srsCode = $wktName;
+                break;
+            case 'GEOGCS':
+                $this->projName = 'longlat';
+                $this->geocsCode = $wktName;
+                if( !$this->srsCode )
+                    $this->srsCode = $wktName;
+                break;
+            case 'PROJCS':
+                $$this->srsCode = $wktName;
+                break;
+            case 'GEOCCS':
+                break;
+            case 'PROJECTION':
+                $this->projName = Proj4php::$wktProjections[$wktName];
+                break;
+            case 'DATUM':
+                $this->datumName = $wktName;
+                break;
+            case 'LOCAL_DATUM':
+                $this->datumCode = 'none';
+                break;
+            case 'SPHEROID':
+                $this->ellps = $wktName;
+                $this->a = floatval( array_shift( $wktArray ) );
+                $this->rf = floatval( array_shift( $wktArray ) );
+                break;
+            case 'PRIMEM':
+                $this->from_greenwich = floatval( array_shift( $wktArray ) ); //to radians?
+                break;
+            case 'UNIT':
+                $this->units = $wktName;
+                $this->unitsPerMeter = floatval( array_shift( $wktArray ) );
+                break;
+            case 'PARAMETER':
+                $name = strtolower( $wktName );
+                $value = floatval( array_shift( $wktArray ) );
+                //there may be many variations on the wktName values, add in case
+                //statements as required
+                switch( $name ) {
+                    case 'false_easting':
+                        $this->x0 = $value;
+                        break;
+                    case 'false_northing':
+                        $this->y0 = $value;
+                        break;
+                    case 'scale_factor':
+                        $this->k0 = $value;
+                        break;
+                    case 'central_meridian':
+                        $this->long0 = $value * Proj4php::$common->D2R;
+                        break;
+                    case 'latitude_of_origin':
+                        $this->lat0 = $value * Proj4php::$common->D2R;
+                        break;
+                    case 'more_here':
+                        break;
+                    default:
+                        break;
+                }
+                break;
+            case 'TOWGS84':
+                $this->datum_params = $wktArray;
+                break;
+            //DGR 2010-11-12: AXIS
+            case 'AXIS':
+                $name = strtolower( $wktName );
+                $value = array_shift( $wktArray );
+                switch( $value ) {
+                    case 'EAST' : $value = 'e';
+                        break;
+                    case 'WEST' : $value = 'w';
+                        break;
+                    case 'NORTH': $value = 'n';
+                        break;
+                    case 'SOUTH': $value = 's';
+                        break;
+                    case 'UP' : $value = 'u';
+                        break;
+                    case 'DOWN' : $value = 'd';
+                        break;
+                    case 'OTHER':
+                    default : $value = ' ';
+                        break; //FIXME
+                }
+                if( !$this->axis ) {
+                    $this->axis = "enu";
+                }
+                switch( $name ) {
+                    case 'X': $this->axis = $value . substr( $this->axis, 1, 2 );
+                        break;
+                    case 'Y': $this->axis = substr( $this->axis, 0, 1 ) . $value . substr( $this->axis, 2, 1 );
+                        break;
+                    case 'Z': $this->axis = substr( $this->axis, 0, 2 ) . $value;
+                        break;
+                    default : break;
+                }
+            case 'MORE_HERE':
+                break;
+            default:
+                break;
+        }
+        
+        foreach( $wktArray as $wktArrayContent ) 
+            $this->parseWKT( $wktArrayContent );
+    }
+
+    /**
+     * Function: parseDefs
+     * Parses the PROJ.4 initialization string and sets the associated properties.
+     *
+     */
+    public function parseDefs() {
+        
+        $this->defData = Proj4php::$defs[$this->srsCode];
+        #$paramName;
+        #$paramVal;
+        if( !$this->defData ) {
+            return;
+        }
+        $paramArray = explode( "+", $this->defData );
+        for( $prop = 0; $prop < sizeof( $paramArray ); $prop++ ) {
+            if( strlen( $paramArray[$prop] ) == 0 )
+                continue;
+            $property = explode( "=", $paramArray[$prop] );
+            $paramName = strtolower( $property[0] );
+            if( sizeof( $property ) >= 2 ) {
+                $paramVal = $property[1];
+            }
+
+            switch( trim( $paramName ) ) {  // trim out spaces
+                case "": break;   // throw away nameless parameter
+                case "title": $this->title = $paramVal;
+                    break;
+                case "proj": $this->projName = trim( $paramVal );
+                    break;
+                case "units": $this->units = trim( $paramVal );
+                    break;
+                case "datum": $this->datumCode = trim( $paramVal );
+                    break;
+                case "nadgrids": $this->nagrids = trim( $paramVal );
+                    break;
+                case "ellps": $this->ellps = trim( $paramVal );
+                    break;
+                case "a": $this->a = floatval( $paramVal );
+                    break;  // semi-major radius
+                case "b": $this->b = floatval( $paramVal );
+                    break;  // semi-minor radius
+                // DGR 2007-11-20
+                case "rf": $this->rf = floatval( paramVal );
+                    break; // inverse flattening rf= a/(a-b)
+                case "lat_0": $this->lat0 = $paramVal * Proj4php::$common->D2R;
+                    break;        // phi0, central latitude
+                case "lat_1": $this->lat1 = $paramVal * Proj4php::$common->D2R;
+                    break;        //standard parallel 1
+                case "lat_2": $this->lat2 = $paramVal * Proj4php::$common->D2R;
+                    break;        //standard parallel 2
+                case "lat_ts": $this->lat_ts = $paramVal * Proj4php::$common->D2R;
+                    break;      // used in merc and eqc
+                case "lon_0": $this->long0 = $paramVal * Proj4php::$common->D2R;
+                    break;       // lam0, central longitude
+                case "alpha": $this->alpha = floatval( $paramVal ) * Proj4php::$common->D2R;
+                    break;  //for somerc projection
+                case "lonc": $this->longc = paramVal * Proj4php::$common->D2R;
+                    break;       //for somerc projection
+                case "x_0": $this->x0 = floatval( $paramVal );
+                    break;  // false easting
+                case "y_0": $this->y0 = floatval( $paramVal );
+                    break;  // false northing
+                case "k_0": $this->k0 = floatval( $paramVal );
+                    break;  // projection scale factor
+                case "k": $this->k0 = floatval( $paramVal );
+                    break;  // both forms returned
+                case "r_a": $this->R_A = true;
+                    break;                 // sphere--area of ellipsoid
+                case "zone": $this->zone = intval( $paramVal, 10 );
+                    break;  // UTM Zone
+                case "south": $this->utmSouth = true;
+                    break;  // UTM north/south
+                case "towgs84": $this->datum_params = explode( ",", $paramVal );
+                    break;
+                case "to_meter": $this->to_meter = floatval( $paramVal );
+                    break; // cartesian scaling
+                case "from_greenwich": $this->from_greenwich = $paramVal * Proj4php::$common->D2R;
+                    break;
+                // DGR 2008-07-09 : if pm is not a well-known prime meridian take
+                // the value instead of 0.0, then convert to radians
+                case "pm": $paramVal = trim( $paramVal );
+                    $this->from_greenwich = Proj4php::$primeMeridian[$paramVal] ? Proj4php::$primeMeridian[$paramVal] : floatval( $paramVal );
+                    $this->from_greenwich *= Proj4php::$common->D2R;
+                    break;
+                // DGR 2010-11-12: axis
+                case "axis": $paramVal = trim( $paramVal );
+                    $legalAxis = "ewnsud";
+                    if( strlen( paramVal ) == 3 &&
+                        strpos( $legalAxis, substr( $paramVal, 0, 1 ) ) !== false &&
+                        strpos( $legalAxis, substr( $paramVal, 1, 1 ) ) !== false &&
+                        strpos( $legalAxis, substr( $paramVal, 2, 1 ) ) !== false ) {
+                        $this->axis = $paramVal;
+                    } //FIXME: be silent ?
+                    break;
+                case "no_defs": break;
+                default: //alert("Unrecognized parameter: " . paramName);
+            } // switch()
+        } // for paramArray
+        $this->deriveConstants();
+    }
+
+    /**
+     * Function: deriveConstants
+     * Sets several derived constant values and initialization of datum and ellipse parameters.
+     *
+     */
+    public function deriveConstants() {
+        
+        if( isset( $this->nagrids ) && $this->nagrids == '@null' )
+            $this->datumCode = 'none';
+        
+        if( isset( $this->datumCode ) && $this->datumCode != 'none' ) {
+            
+            $datumDef = Proj4php::$datum[$this->datumCode];
+            
+            if( is_array($datumDef ) ) {
+                $this->datum_params = array_key_exists( 'towgs84', $datumDef ) ? explode( ',', $datumDef['towgs84'] ) : null;
+                $this->ellps = $datumDef['ellipse'];
+                $this->datumName = array_key_exists( 'datumName', $datumDef ) ? $datumDef['datumName'] : $this->datumCode;
+            }
+        }
+        if( !isset( $this->a ) ) {    // do we have an ellipsoid?
+            if( !isset( $this->ellps ) || strlen( $this->ellps ) == 0 || !array_key_exists( $this->ellps, Proj4php::$ellipsoid ) )
+                $ellipse = Proj4php::$ellipsoid['WGS84'];
+            else {
+                $ellipse = Proj4php::$ellipsoid[$this->ellps];
+            }
+            
+            Proj4php::extend( $this, $ellipse );
+        }
+
+        if( isset( $this->rf ) && !isset( $this->b ) )
+            $this->b = (1.0 - 1.0 / $this->rf) * $this->a;
+        
+        if ( (isset($this->rf) && $this->rf === 0) || abs($this->a - $this->b) < Proj4php::$common->EPSLN) {
+            $this->sphere = true;
+            $this->b = $this->a;
+        }
+        $this->a2 = $this->a * $this->a;          // used in geocentric
+        $this->b2 = $this->b * $this->b;          // used in geocentric
+        $this->es = ($this->a2 - $this->b2) / $this->a2;  // e ^ 2
+        $this->e = sqrt( $this->es );        // eccentricity
+        if( isset( $this->R_A ) ) {
+            $this->a *= 1. - $this->es * (Proj4php::$common->SIXTH + $this->es * (Proj4php::$common->RA4 + $this->es * Proj4php::$common->RA6));
+            $this->a2 = $this->a * $this->a;
+            $this->b2 = $this->b * $this->b;
+            $this->es = 0.0;
+        }
+        $this->ep2 = ($this->a2 - $this->b2) / $this->b2; // used in geocentric
+        if( !isset( $this->k0 ) )
+            $this->k0 = 1.0;    //default value
+            
+        //DGR 2010-11-12: axis
+        if( !isset( $this->axis ) ) {
+            $this->axis = "enu";
+        }
+
+        $this->datum = new Proj4phpDatum( $this );
+    }
+
+}
 \ No newline at end of file
@@ -0,0 +1,184 @@
+<?php
+/*******************************************************************************
+  NAME                     ALBERS CONICAL EQUAL AREA
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and Northing
+  for the Albers Conical Equal Area projection.  The longitude
+  and latitude must be in radians.  The Easting and Northing
+  values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  T. Mittan,       	Feb, 1992
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+  Printing Office, Washington D.C., 1989.
+ *******************************************************************************/
+
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+class Proj4phpProjAea {
+
+    /**
+     *
+     * @return void 
+     */
+    public function init() {
+
+        if( abs( $this->lat1 + $this->lat2 ) < Proj4php::$common->EPSLN ) {
+            Proj4php::reportError( "aeaInitEqualLatitudes" );
+            return;
+        }
+        $this->temp = $this->b / $this->a;
+        $this->es = 1.0 - pow( $this->temp, 2 );
+        $this->e3 = sqrt( $this->es );
+
+        $this->sin_po = sin( $this->lat1 );
+        $this->cos_po = cos( $this->lat1 );
+        $this->t1 = $this->sin_po;
+        $this->con = $this->sin_po;
+        $this->ms1 = Proj4php::$common->msfnz( $this->e3, $this->sin_po, $this->cos_po );
+        $this->qs1 = Proj4php::$common->qsfnz( $this->e3, $this->sin_po, $this->cos_po );
+
+        $this->sin_po = sin( $this->lat2 );
+        $this->cos_po = cos( $this->lat2 );
+        $this->t2 = $this->sin_po;
+        $this->ms2 = Proj4php::$common->msfnz( $this->e3, $this->sin_po, $this->cos_po );
+        $this->qs2 = Proj4php::$common->qsfnz( $this->e3, $this->sin_po, $this->cos_po );
+
+        $this->sin_po = sin( $this->lat0 );
+        $this->cos_po = cos( $this->lat0 );
+        $this->t3 = $this->sin_po;
+        $this->qs0 = Proj4php::$common->qsfnz( $this->e3, $this->sin_po, $this->cos_po );
+
+        if( abs( $this->lat1 - $this->lat2 ) > Proj4php::$common->EPSLN ) {
+            $this->ns0 = ($this->ms1 * $this->ms1 - $this->ms2 * $this->ms2) / ($this->qs2 - $this->qs1);
+        } else {
+            $this->ns0 = $this->con;
+        }
+        
+        $this->c = $this->ms1 * $this->ms1 + $this->ns0 * $this->qs1;
+        $this->rh = $this->a * sqrt( $this->c - $this->ns0 * $this->qs0 ) / $this->ns0;
+    }
+
+    /**
+     * Albers Conical Equal Area forward equations--mapping lat,long to x,y
+     *
+     * @param Point $p
+     * @return Point $p 
+     */
+    public function forward( $p ) {
+
+        $lon = $p->x;
+        $lat = $p->y;
+
+        $this->sin_phi = sin( $lat );
+        $this->cos_phi = cos( $lat );
+
+        $qs = Proj4php::$common->qsfnz( $this->e3, $this->sin_phi, $this->cos_phi );
+        $rh1 = $this->a * sqrt( $this->c - $this->ns0 * $qs ) / $this->ns0;
+        $theta = $this->ns0 * Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        $x = rh1 * sin( $theta ) + $this->x0;
+        $y = $this->rh - $rh1 * cos( $theta ) + $this->y0;
+
+        $p->x = $x;
+        $p->y = $y;
+        
+        return $p;
+    }
+
+    /**
+     *
+     * @param Point $p
+     * @return Point $p
+     */
+    public function inverse( $p ) {
+        
+        $p->x -= $this->x0;
+        $p->y = $this->rh - $p->y + $this->y0;
+        
+        if( $this->ns0 >= 0 ) {
+            $rh1 = sqrt( $p->x * $p->x + $p->y * $p->y );
+            $con = 1.0;
+        } else {
+            $rh1 = -sqrt( $p->x * $p->x + $p->y * $p->y );
+            $con = -1.0;
+        }
+        
+        $theta = 0.0;
+        if( $rh1 != 0.0 ) {
+            $theta = atan2( $con * $p->x, $con * $p->y );
+        }
+        
+        $con = $rh1 * $this->ns0 / $this->a;
+        $qs = ($this->c - $con * $con) / $this->ns0;
+        
+        if( $this->e3 >= 1e-10 ) {
+            $con = 1 - .5 * (1.0 - $this->es) * log( (1.0 - $this->e3) / (1.0 + $this->e3) ) / $this->e3;
+            if( abs( abs( $con ) - abs( $qs ) ) > .0000000001 ) {
+                $lat = $this->phi1z( $this->e3, $qs );
+            } else {
+                if( $qs >= 0 ) {
+                    $lat = .5 * Proj4php::$common->PI;
+                } else {
+                    $lat = -.5 * Proj4php::$common->PI;
+                }
+            }
+        } else {
+            $lat = $this->phi1z( $this->e3, $qs );
+        }
+
+        $lon = Proj4php::$common->adjust_lon( $theta / $this->ns0 + $this->long0 );
+        
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+
+    /**
+     * Function to compute phi1, the latitude for the inverse of the Albers Conical Equal-Area projection.
+     *
+     * @param type $eccent
+     * @param type $qs
+     * @return $phi or null on Convergence error
+     */
+    public function phi1z( $eccent, $qs ) {
+        
+        $phi = Proj4php::$common->asinz( .5 * $qs );
+        
+        if( $eccent < Proj4php::$common->EPSLN )
+            return $phi;
+
+        $eccnts = $eccent * $eccent;
+        for( $i = 1; $i <= 25; ++$i ) {
+            $sinphi = sin( $phi );
+            $cosphi = cos( $phi );
+            $con = $eccent * $sinphi;
+            $com = 1.0 - $con * $con;
+            $dphi = .5 * $com * $com / $cosphi * ($qs / (1.0 - $eccnts) - $sinphi / $com + .5 / $eccent * log( (1.0 - $con) / (1.0 + $con) ));
+            $phi = $phi + $dphi;
+            if( abs( $dphi ) <= 1e-7 )
+                return $phi;
+        }
+        
+        Proj4php::reportError( "aea:phi1z:Convergence error" );
+        
+        return null;
+    }
+
+}
+
+Proj4php::$proj['aea'] = new Proj4phpProjAea();
 \ No newline at end of file
@@ -0,0 +1,101 @@
+<?php
+
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+class Proj4phpProjAeqd {
+
+    public function init() {
+        $this->sin_p12 = sin( $this->lat0 );
+        $this->cos_p12 = cos( $this->lat0 );
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function forward( $p ) {
+
+        #$lon = $p->x;
+        #$lat = $p->y;
+        #$ksp;
+
+        $sinphi = sin( $p->y );
+        $cosphi = cos( $p->y );
+        $dlon = Proj4php::$common->adjust_lon( lon - $this->long0 );
+        $coslon = cos( $dlon );
+        $g = $this->sin_p12 * $sinphi + $this->cos_p12 * $cosphi * $coslon;
+        if( abs( abs( $g ) - 1.0 ) < Proj4php::$common->EPSLN ) {
+            $ksp = 1.0;
+            if( $g < 0.0 ) {
+                Proj4php::reportError( "aeqd:Fwd:PointError" );
+                return;
+            }
+        } else {
+            $z = acos( $g );
+            $ksp = $z / sin( $z );
+        }
+        $p->x = $this->x0 + $this->a * $ksp * $cosphi * sin( $dlon );
+        $p->y = $this->y0 + $this->a * $ksp * ($this->cos_p12 * $sinphi - $this->sin_p12 * $cosphi * $coslon);
+        
+        return $p;
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function inverse( $p ) {
+        
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+
+        $rh = sqrt( $p->x * $p->x + $p->y * $p->y );
+        if( $rh > (2.0 * Proj4php::$common->HALF_PI * $this->a) ) {
+            Proj4php::reportError( "aeqdInvDataError" );
+            return;
+        }
+        $z = $rh / $this->a;
+
+        $sinz = sin( $z );
+        $cosz = cos( $z );
+
+        $lon = $this->long0;
+        #$lat;
+        if( abs( $rh ) <= Proj4php::$common->EPSLN ) {
+            $lat = $this->lat0;
+        } else {
+            $lat = Proj4php::$common->asinz( $cosz * $this->sin_p12 + ($p->y * $sinz * $this->cos_p12) / $rh );
+            $con = abs( $this->lat0 ) - Proj4php::$common->HALF_PI;
+            if( abs( $con ) <= Proj4php::$common->EPSLN ) {
+                if( $this->lat0 >= 0.0 ) {
+                    $lon = Proj4php::$common->adjust_lon( $this->long0 + atan2( $p->x, -$p->y ) );
+                } else {
+                    $lon = Proj4php::$common->adjust_lon( $this->long0 - atan2( -$p->x, $p->y ) );
+                }
+            } else {
+                $con = $cosz - $this->sin_p12 * sin( $lat );
+                if( (abs( $con ) < Proj4php::$common->EPSLN) && (abs( $p->x ) < Proj4php::$common->EPSLN) ) {
+                    //no-op, just keep the lon value as is
+                } else {
+                    #$temp = atan2( ($p->x * $sinz * $this->cos_p12 ), ($con * $rh ) ); // $temp is unused !?!
+                    $lon = Proj4php::$common->adjust_lon( $this->long0 + atan2( ($p->x * $sinz * $this->cos_p12 ), ($con * $rh ) ) );
+                }
+            }
+        }
+        
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['aeqd'] = new Proj4phpProjAeqd();
 \ No newline at end of file
@@ -0,0 +1,118 @@
+<?php
+
+/*******************************************************************************
+  NAME                            CASSINI
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Cassini projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+  Ported from PROJ.4.
+
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+ ****************************************************************************** */
+
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+//Proj4php.defs["EPSG:28191"] = "+proj=cass +lat_0=31.73409694444445 +lon_0=35.21208055555556 +x_0=170251.555 +y_0=126867.909 +a=6378300.789 +b=6356566.435 +towgs84=-275.722,94.7824,340.894,-8.001,-4.42,-11.821,1 +units=m +no_defs";
+// Initialize the Cassini projection
+// -----------------------------------------------------------------
+
+class Proj4phpProjCass {
+
+    public function init() {
+        if( !$this->sphere ) {
+            $this->en = Proj4php::$common->pj_enfn( $this->es );
+            $this->m0 = Proj4php::$common->pj_mlfn( $this->lat0, sin( $this->lat0 ), cos( $this->lat0 ), $this->en );
+        }
+    }
+
+    protected $C1 = .16666666666666666666;
+    protected $C2 = .00833333333333333333;
+    protected $C3 = .04166666666666666666;
+    protected $C4 = .33333333333333333333;
+    protected $C5 = .06666666666666666666;
+
+    /* Cassini forward equations--mapping lat,long to x,y
+      ----------------------------------------------------------------------- */
+    public function forward( $p ) {
+
+        /* Forward equations
+          ----------------- */
+        #$x;
+        #$y;
+        $lam = $p->x;
+        $phi = $p->y;
+        $lam = Proj4php::$common->adjust_lon( $lam - $this->long0 );
+
+        if( $this->sphere ) {
+            $x = asin( cos( $phi ) * sin( $lam ) );
+            $y = atan2( tan( $phi ), cos( $lam ) ) - $this->phi0;
+        } else {
+            //ellipsoid
+            $this->n = sin( $phi );
+            $this->c = cos( $phi );
+            $y = $this->pj_mlfn( $phi, $this->n, $this->c, $this->en );
+            $this->n = 1. / sqrt( 1. - $this->es * $this->n * $this->n );
+            $this->tn = tan( $phi );
+            $this->t = $this->tn * $this->tn;
+            $this->a1 = $lam * $this->c;
+            $this->c *= $this->es * $this->c / (1 - $this->es);
+            $this->a2 = $this->a1 * $this->a1;
+            $x = $this->n * $this->a1 * (1. - $this->a2 * $this->t * ($this->C1 - (8. - $this->t + 8. * $this->c) * $this->a2 * $this->C2));
+            $y -= $this->m0 - $this->n * $this->tn * $this->a2 * (.5 + (5. - $this->t + 6. * $this->c) * $this->a2 * $this->C3);
+        }
+
+        $p->x = $this->a * $x + $this->x0;
+        $p->y = $this->a * $y + $this->y0;
+        
+        return $p;
+    }
+
+    /* Inverse equations
+      ----------------- */
+    public function inverse( $p ) {
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+        $x = $p->x / $this->a;
+        $y = $p->y / $this->a;
+
+        if( $this->sphere ) {
+            $this->dd = $y + $this->lat0;
+            $phi = asin( sin( $this->dd ) * cos( $x ) );
+            $lam = atan2( tan( $x ), cos( $this->dd ) );
+        } else {
+            /* ellipsoid */
+            $ph1 = Proj4php::$common->pj_inv_mlfn( $this->m0 + $y, $this->es, $this->en );
+            $this->tn = tan( $ph1 );
+            $this->t = $this->tn * $this->tn;
+            $this->n = sin( $ph1 );
+            $this->r = 1. / (1. - $this->es * $this->n * $this->n);
+            $this->n = sqrt( $this->r );
+            $this->r *= (1. - $this->es) * $this->n;
+            $this->dd = $x / $this->n;
+            $this->d2 = $this->dd * $this->dd;
+            $phi = $ph1 - ($this->n * $this->tn / $this->r) * $this->d2 * (.5 - (1. + 3. * $this->t) * $this->d2 * $this->C3);
+            $lam = $this->dd * (1. + $this->t * $this->d2 * (-$this->C4 + (1. + 3. * $this->t) * $this->d2 * $this->C5)) / cos( $ph1 );
+        }
+        $p->x = Proj4php::$common->adjust_lon( $this->long0 + $lam );
+        $p->y = $phi;
+        
+        return $p;
+    }
+}
+
+Proj4php::$proj['cass'] = new Proj4phpProjCass();
 \ No newline at end of file
@@ -0,0 +1,97 @@
+<?php
+/*******************************************************************************
+  NAME                    LAMBERT CYLINDRICAL EQUAL AREA
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Lambert Cylindrical Equal Area projection.
+  This class of projection includes the Behrmann and
+  Gall-Peters Projections.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  R. Marsden              August 2009
+  Winwaed Software Tech LLC, http://www.winwaed.com
+
+  This function was adapted from the Miller Cylindrical Projection in the Proj4php
+  library.
+
+  Note: This implementation assumes a Spherical Earth. The (commented) code
+  has been included for the ellipsoidal forward transform, but derivation of
+  the ellispoidal inverse transform is beyond me. Note that most of the
+  Proj4php implementations do NOT currently support ellipsoidal figures.
+  Therefore this is not seen as a problem - especially this lack of support
+  is explicitly stated here.
+
+  ALGORITHM REFERENCES
+
+  1.  "Cartographic Projection Procedures for the UNIX Environment -
+  A User's Manual" by Gerald I. Evenden, USGS Open File Report 90-284
+  and Release 4 Interim Reports (2003)
+
+  2.  Snyder, John P., "Flattening the Earth - Two Thousand Years of Map
+  Projections", Univ. Chicago Press, 1993
+ ****************************************************************************** */
+
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+class Proj4phpProjCea {
+    /* Initialize the Cylindrical Equal Area projection
+      ------------------------------------------- */
+
+    public function init() {
+        //no-op
+    }
+
+    /* Cylindrical Equal Area forward equations--mapping lat,long to x,y
+      ------------------------------------------------------------ */
+    public function forward( $p ) {
+        
+        $lon = $p->x;
+        $lat = $p->y;
+        
+        /* Forward equations
+          ----------------- */
+        $dlon = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        $x = $this->x0 + $this->a * $dlon * cos( $this->lat_ts );
+        $y = $this->y0 + $this->a * sin( $lat ) / cos( $this->lat_ts );
+        /* Elliptical Forward Transform
+          Not implemented due to a lack of a matchign inverse function
+          {
+          $Sin_Lat = sin(lat);
+          $Rn = $this->a * (sqrt(1.0e0 - $this->es * Sin_Lat * Sin_Lat ));
+          x = $this->x0 + $this->a * dlon * cos($this->lat_ts);
+          y = $this->y0 + Rn * sin(lat) / cos($this->lat_ts);
+          }
+         */
+
+        $p->x = $x;
+        $p->y = $y;
+        
+        return $p;
+    }
+
+    /**
+     * Cylindrical Equal Area inverse equations--mapping x,y to lat/long
+     * 
+     * @param type $p
+     * @return type 
+     */
+    public function inverse( $p ) {
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+
+        $p->x = Proj4php::$common->adjust_lon( $this->long0 + ($p->x / $this->a) / cos( $this->lat_ts ) );
+        $p->y = asin( ($p->y / $this->a) * cos( $this->lat_ts ) );
+        
+        return $p;
+    }
+}
+
+Proj4php::$proj['cea'] = new Proj4phpProjCea();
 \ No newline at end of file
@@ -0,0 +1,58 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/* similar to equi.js FIXME proj4 uses eqc */
+class Proj4phpProjEqc {
+
+    public function init() {
+
+        if( !$this->x0 )
+            $this->x0 = 0;
+        if( !$this->y0 )
+            $this->y0 = 0;
+        if( !$this->lat0 )
+            $this->lat0 = 0;
+        if( !$this->long0 )
+            $this->long0 = 0;
+        if( !$this->lat_ts )
+            $this->lat_ts = 0;
+        if( !$this->title )
+            $this->title = "Equidistant Cylindrical (Plate Carre)";
+
+        $this->rc = cos( $this->lat_ts );
+    }
+
+    // forward equations--mapping lat,long to x,y
+    // -----------------------------------------------------------------
+    public function forward( $p ) {
+
+        $lon = $p->x;
+        $lat = $p->y;
+
+        $dlon = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        $dlat = Proj4php::$common->adjust_lat( $lat - $this->lat0 );
+        $p->x = $this->x0 + ($this->a * $dlon * $this->rc);
+        $p->y = $this->y0 + ($this->a * $dlat );
+        return $p;
+    }
+
+    // inverse equations--mapping x,y to lat/long
+    // -----------------------------------------------------------------
+    public function inverse( $p ) {
+
+        $x = $p->x;
+        $y = $p->y;
+
+        $p->x = Proj4php::$common->adjust_lon( $this->long0 + (($x - $this->x0) / ($this->a * $this->rc)) );
+        $p->y = Proj4php::$common->adjust_lat( $this->lat0 + (($y - $this->y0) / ($this->a )) );
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['eqc'] = new Proj4phpProjEqc();
 \ No newline at end of file
@@ -0,0 +1,152 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                            EQUIDISTANT CONIC
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and Northing
+  for the Equidistant Conic projection.  The longitude and
+  latitude must be in radians.  The Easting and Northing values
+  will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  T. Mittan		Mar, 1993
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John $p->, "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John $p-> and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+  Printing Office, Washington D.C., 1989.
+*******************************************************************************/
+
+/* Variables common to all subroutines in this code file
+-----------------------------------------------------*/
+
+class Proj4phpProjEqdc {
+    
+    /* Initialize the Equidistant Conic projection
+      ------------------------------------------ */
+    public function init() {
+        
+        /* Place parameters in static storage for common use
+          ------------------------------------------------- */
+        if( !$this->mode )
+            $this->mode = 0; //chosen default mode
+        $this->temp = $this->b / $this->a;
+        $this->es = 1.0 - pow( $this->temp, 2 );
+        $this->e = sqrt( $this->es );
+        $this->e0 = Proj4php::$common->e0fn( $this->es );
+        $this->e1 = Proj4php::$common->e1fn( $this->es );
+        $this->e2 = Proj4php::$common->e2fn( $this->es );
+        $this->e3 = Proj4php::$common->e3fn( $this->es );
+
+        $this->sinphi = sin( $this->lat1 );
+        $this->cosphi = cos( $this->lat1 );
+
+        $this->ms1 = Proj4php::$common->msfnz( $this->e, $this->sinphi, $this->cosphi );
+        $this->ml1 = Proj4php::$common->mlfn( $this->e0, $this->e1, $this->e2, $this->e3, $this->lat1 );
+
+        /* format B
+          --------- */
+        if( $this->mode != 0 ) {
+            if( abs( $this->lat1 + $this->lat2 ) < Proj4php::$common->EPSLN ) {
+                Proj4php::reportError( "eqdc:Init:EqualLatitudes" );
+                //return(81);
+            }
+            $this->sinphi = sin( $this->lat2 );
+            $this->cosphi = cos( $this->lat2 );
+
+            $this->ms2 = Proj4php::$common->msfnz( $this->e, $this->sinphi, $this->cosphi );
+            $this->ml2 = Proj4php::$common->mlfn( $this->e0, $this->e1, $this->e2, $this->e3, $this->lat2 );
+            if( abs( $this->lat1 - $this->lat2 ) >= Proj4php::$common->EPSLN ) {
+                $this->ns = ($this->ms1 - $this->ms2) / ($this->ml2 - $this->ml1);
+            } else {
+                $this->ns = $this->sinphi;
+            }
+        } else {
+            $this->ns = $this->sinphi;
+        }
+        $this->g = $this->ml1 + $this->ms1 / $this->ns;
+        $this->ml0 = Proj4php::$common->mlfn( $this->e0, $this->e1, $this->e2, $this->e3, $this->lat0 );
+        $this->rh = $this->a * ($this->g - $this->ml0);
+    }
+
+    /* Equidistant Conic forward equations--mapping lat,long to x,y
+      ----------------------------------------------------------- */
+    public function forward( $p ) {
+        $lon = $p->x;
+        $lat = $p->y;
+
+        /* Forward equations
+          ----------------- */
+        $ml = Proj4php::$common->mlfn( $this->e0, $this->e1, $this->e2, $this->e3, $lat );
+        $rh1 = $this->a * ($this->g - $ml);
+        $theta = $this->ns * Proj4php::$common->adjust_lon( $lon - $this->long0 );
+
+        $x = $this->x0 + $rh1 * sin( $theta );
+        $y = $this->y0 + $this->rh - $rh1 * cos( $theta );
+        $p->x = $x;
+        $p->y = $y;
+        
+        return $p;
+    }
+
+    /* Inverse equations
+      ----------------- */
+    public function inverse( $p ) {
+        
+        $p->x -= $this->x0;
+        $p->y = $this->rh - $p->y + $this->y0;
+        
+        if( $this->ns >= 0 ) {
+            $rh1 = sqrt( $p->x * $p->x + $p->y * $p->y );
+            $con = 1.0;
+        } else {
+            $rh1 = -sqrt( $p->x * $p->x + $p->y * $p->y );
+            $con = -1.0;
+        }
+        $theta = 0.0;
+        if( $rh1 != 0.0 )
+            $theta = atan2( $con * $p->x, $con * $p->y );
+        $ml = $this->g - $rh1 / $this->a;
+        $lat = $this->phi3z( $ml, $this->e0, $this->e1, $this->e2, $this->e3 );
+        $lon = Proj4php::$common->adjust_lon( $this->long0 + $theta / $this->ns );
+
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+
+    /* Function to compute latitude, phi3, for the inverse of the Equidistant
+      Conic projection.
+      ----------------------------------------------------------------- */
+
+    public function phi3z( $ml, $e0, $e1, $e2, $e3 ) {
+
+        $phi = $ml;
+        for( $i = 0; $i < 15; $i++ ) {
+            $dphi = ($ml + $e1 * sin( 2.0 * $phi ) - $e2 * sin( 4.0 * $phi ) + $e3 * sin( 6.0 * $phi )) / $e0 - $phi;
+            $phi += $dphi;
+            if( abs( $dphi ) <= .0000000001 ) {
+                return $phi;
+            }
+        }
+        
+        Proj4php::reportError( "PHI3Z-CONV:Latitude failed to converge after 15 iterations" );
+        
+        return null;
+    }
+}
+
+Proj4php::$proj['eqdc'] = new Proj4phpProjEqdc();
 \ No newline at end of file
@@ -0,0 +1,80 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                             EQUIRECTANGULAR
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Equirectangular projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  T. Mittan		Mar, 1993
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+  Printing Office, Washington D.C., 1989.
+ *******************************************************************************/
+class Proj4phpProjEqui {
+
+    public function init() {
+        if( !$this->x0 )
+            $this->x0 = 0;
+        if( !$this->y0 )
+            $this->y0 = 0;
+        if( !$this->lat0 )
+            $this->lat0 = 0;
+        if( !$this->long0 )
+            $this->long0 = 0;
+        ///$this->t2;
+    }
+
+    /* Equirectangular forward equations--mapping lat,long to x,y
+      --------------------------------------------------------- */
+    public function forward( $p ) {
+
+        $lon = $p->x;
+        $lat = $p->y;
+
+        $dlon = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        $x = $this->x0 + $this->a * $dlon * cos( $this->lat0 );
+        $y = $this->y0 + $this->a * $lat;
+
+        $this->t1 = $x;
+        $this->t2 = cos( $this->lat0 );
+        $p->x = $x;
+        $p->y = $y;
+        return $p;
+    }
+
+    /* Equirectangular inverse equations--mapping x,y to lat/long
+      --------------------------------------------------------- */
+    public function inverse( $p ) {
+
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+        $lat = $p->y / $this->a;
+
+        if( abs( $lat ) > Proj4php::$common->HALF_PI ) {
+            Proj4php::reportError( "equi:Inv:DataError" );
+        }
+        $lon = Proj4php::$common->adjust_lon( $this->long0 + $p->x / ($this->a * cos( $this->lat0 )) );
+        $p->x = $lon;
+        $p->y = $lat;
+    }
+}
+
+Proj4php::$proj['equi'] = new Proj4phpProjEqui();
 \ No newline at end of file
@@ -0,0 +1,74 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+class Proj4phpProjGauss {
+
+    /**
+     * 
+     */
+    public function init() {
+        
+        $sphi = sin( $this->lat0 );
+        $cphi = cos( $this->lat0 );
+        $cphi *= $cphi;
+        $this->rc = sqrt( 1.0 - $this->es ) / (1.0 - $this->es * $sphi * $sphi);
+        $this->C = sqrt( 1.0 + $this->es * $cphi * $cphi / (1.0 - $this->es) );
+        $this->phic0 = asin( $sphi / $this->C );
+        $this->ratexp = 0.5 * $this->C * $this->e;
+        $this->K = tan( 0.5 * $this->phic0 + Proj4php::$common->FORTPI ) / (pow( tan( 0.5 * $this->lat0 + Proj4php::$common->FORTPI ), $this->C ) * Proj4php::$common->srat( $this->e * $sphi, $this->ratexp ));
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function forward( $p ) {
+        $lon = $p->x;
+        $lat = $p->y;
+
+        $p->y = 2.0 * atan( $this->K * pow( tan( 0.5 * $lat + Proj4php::$common->FORTPI ), $this->C ) * Proj4php::$common->srat( $this->e * sin( $lat ), $this->ratexp ) ) - Proj4php::$common->HALF_PI;
+        $p->x = $this->C * $lon;
+        
+        return $p;
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return null 
+     */
+    public function inverse( $p ) {
+        
+        $DEL_TOL = 1e-14;
+        $lon = $p->x / $this->C;
+        $lat = $p->y;
+        $num = pow( tan( 0.5 * $lat + Proj4php::$common->FORTPI ) / $this->K, 1. / $this->C );
+        
+        for( $i = Proj4php::$common->MAX_ITER; $i > 0; --$i ) {
+            $lat = 2.0 * atan( $num * Proj4php::$common->srat( $this->e * sin( $p->y ), -0.5 * $this->e ) ) - Proj4php::$common->HALF_PI;
+            if( abs( $lat - $p->y ) < $DEL_TOL )
+                break;
+            $p->y = $lat;
+        }
+        
+        /* convergence failed */
+        if( !$i ) {
+            Proj4php::reportError( "gauss:inverse:convergence failed" );
+            return null;
+        }
+        
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['gauss'] = new Proj4phpProjGauss();
 \ No newline at end of file
@@ -0,0 +1,145 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*****************************************************************************
+  NAME                             GNOMONIC
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Gnomonic Projection.
+  Implementation based on the existing sterea and ortho
+  implementations.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  Richard Marsden         November 2009
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Flattening the Earth - Two Thousand Years of Map
+  Projections", University of Chicago Press 1993
+
+  2.  Wolfram Mathworld "Gnomonic Projection"
+  http://mathworld.wolfram.com/GnomonicProjection.html
+  Accessed: 12th November 2009
+******************************************************************************/
+
+class Proj4phpProjGnom {
+    
+    /**
+     * Initialize the Gnomonic projection
+     * 
+     * @todo $def not used in context...?
+     * @param type $def 
+     */
+    public function init( $def ) {
+
+        /* Place parameters in static storage for common use
+          ------------------------------------------------- */
+        $this->sin_p14 = sin( $this->lat0 );
+        $this->cos_p14 = cos( $this->lat0 );
+        
+        // Approximation for projecting points to the horizon (infinity)
+        $this->infinity_dist = 1000 * $this->a;
+        $this->rc = 1;
+    }
+
+    /* Gnomonic forward equations--mapping lat,long to x,y
+      --------------------------------------------------- */
+    public function forward( $p ) {
+        
+        /*
+        $sinphi;
+        $cosphi; // sin and cos value
+        $dlon;  // delta longitude value
+        $coslon;  // cos of longitude
+        $ksp;  // scale factor
+        $g;
+        */
+        
+        $lon = $p->x;
+        $lat = $p->y;
+        /* Forward equations
+          ----------------- */
+        $dlon = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+
+        $sinphi = sin( $lat );
+        $cosphi = cos( $lat );
+
+        $coslon = cos( $dlon );
+        $g = $this->sin_p14 * $sinphi + $this->cos_p14 * $cosphi * $coslon;
+        $ksp = 1.0;
+        
+        if( (g > 0) || (abs( g ) <= Proj4php::$common->EPSLN) ) {
+            $x = $this->x0 + $this->a * $ksp * $cosphi * sin( $dlon ) / $g;
+            $y = $this->y0 + $this->a * $ksp * ($this->cos_p14 * $sinphi - $this->sin_p14 * $cosphi * $coslon) / $g;
+        } else {
+            Proj4php::reportError( "orthoFwdPointError" );
+
+            // Point is in the opposing hemisphere and is unprojectable
+            // We still need to return a reasonable point, so we project 
+            // to infinity, on a bearing 
+            // equivalent to the northern hemisphere equivalent
+            // This is a reasonable approximation for short shapes and lines that 
+            // straddle the horizon.
+
+            $x = $this->x0 + $this->infinity_dist * $cosphi * sin( $dlon );
+            $y = $this->y0 + $this->infinity_dist * ($this->cos_p14 * $sinphi - $this->sin_p14 * $cosphi * $coslon);
+        }
+        
+        $p->x = $x;
+        $p->y = $y;
+        
+        return $p;
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function inverse( $p ) {
+        
+        /*
+        $rh;  // Rho 
+        $z;  // angle 
+        $sinc;
+        $cosc;
+        $c;
+        $lon;
+        $lat;
+        */
+        
+        /* Inverse equations
+          ----------------- */
+        $p->x = ($p->x - $this->x0) / $this->a;
+        $p->y = ($p->y - $this->y0) / $this->a;
+
+        $p->x /= $this->k0;
+        $p->y /= $this->k0;
+
+        if( ($rh = sqrt( $p->x * $p->x + $p->y * $p->y ) ) ) {
+            $c = atan2( $rh, $this->rc );
+            $sinc = sin( $c );
+            $cosc = cos( $c );
+
+            $lat = Proj4php::$common->asinz( $cosc * $this->sin_p14 + ($p->y * $sinc * $this->cos_p14) / $rh );
+            $lon = atan2( $p->x * sinc, rh * $this->cos_p14 * $cosc - $p->y * $this->sin_p14 * $sinc );
+            $lon = Proj4php::$common->adjust_lon( $this->long0 + $lon );
+        } else {
+            $lat = $this->phic0;
+            $lon = 0.0;
+        }
+
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+}
+
+Proj4php::$proj['gnom'] = new Proj4phpProjGnom();
 \ No newline at end of file
@@ -0,0 +1,63 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+class Proj4phpProjGstmerc {
+
+    public function init() {
+
+        // array of:  a, b, lon0, lat0, k0, x0, y0
+        $temp = $this->b / $this->a;
+        $this->e = sqrt( 1.0 - $temp * $temp );
+        $this->lc = $this->long0;
+        $this->rs = sqrt( 1.0 + $this->e * $this->e * pow( cos( $this->lat0 ), 4.0 ) / (1.0 - $this->e * $this->e) );
+        $sinz = sin( $this->lat0 );
+        $pc = asin( $sinz / $this->rs );
+        $sinzpc = sin( $pc );
+        $this->cp = Proj4php::$common->latiso( 0.0, $pc, $sinzpc ) - $this->rs * Proj4php::$common->latiso( $this->e, $this->lat0, $sinz );
+        $this->n2 = $this->k0 * $this->a * sqrt( 1.0 - $this->e * $this->e ) / (1.0 - $this->e * $this->e * $sinz * $sinz);
+        $this->xs = $this->x0;
+        $this->ys = $this->y0 - $this->n2 * $pc;
+
+        if( !$this->title )
+            $this->title = "Gauss Schreiber transverse mercator";
+    }
+
+    // forward equations--mapping lat,long to x,y
+    // -----------------------------------------------------------------
+    public function forward( $p ) {
+
+        $lon = $p->x;
+        $lat = $p->y;
+
+        $L = $this->rs * ($lon - $this->lc);
+        $Ls = $this->cp + ($this->rs * Proj4php::$common->latiso( $this->e, $lat, sin( $lat ) ));
+        $lat1 = asin( sin( $L ) / Proj4php::$common->cosh( $Ls ) );
+        $Ls1 = Proj4php::$common->latiso( 0.0, $lat1, sin( $lat1 ) );
+        $p->x = $this->xs + ($this->n2 * $Ls1);
+        $p->y = $this->ys + ($this->n2 * atan( Proj4php::$common->sinh( $Ls ) / cos( $L ) ));
+        return $p;
+    }
+
+    // inverse equations--mapping x,y to lat/long
+    // -----------------------------------------------------------------
+    public function inverse( $p ) {
+
+        $x = $p->x;
+        $y = $p->y;
+
+        $L = atan( Proj4php::$common->sinh( ($x - $this->xs) / $this->n2 ) / cos( ($y - $this->ys) / $this->n2 ) );
+        $lat1 = asin( sin( ($y - $this->ys) / $this->n2 ) / Proj4php::$common->cosh( ($x - $this->xs) / $this->n2 ) );
+        $LC = Proj4php::$common->latiso( 0.0, $lat1, sin( $lat1 ) );
+        $p->x = $this->lc + $L / $this->rs;
+        $p->y = Proj4php::$common->invlatiso( $this->e, ($LC - $this->cp) / $this->rs );
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['gstmerc'] = new Proj4phpProjGestmerc();
@@ -0,0 +1,157 @@
+<?php
+
+/**
+  NOTES: According to EPSG the full Krovak projection method should have
+  the following parameters.  Within PROJ.4 the azimuth, and pseudo
+  standard parallel are hardcoded in the algorithm and can't be
+  altered from outside.  The others all have defaults to match the
+  common usage with Krovak projection.
+
+  lat_0 = latitude of centre of the projection
+
+  lon_0 = longitude of centre of the projection
+
+ * * = azimuth (true) of the centre line passing through the centre of the projection
+
+ * * = latitude of pseudo standard parallel
+
+  k  = scale factor on the pseudo standard parallel
+
+  x_0 = False Easting of the centre of the projection at the apex of the cone
+
+  y_0 = False Northing of the centre of the projection at the apex of the cone
+
+**/
+class Proj4phpProjKrovak {
+
+    /**
+     * 
+     */
+    public function init() {
+        /* we want Bessel as fixed ellipsoid */
+        $this->a = 6377397.155;
+        $this->es = 0.006674372230614;
+        $this->e = sqrt( $this->es );
+        /* if latitude of projection center is not set, use 49d30'N */
+        if( !$this->lat0 ) {
+            $this->lat0 = 0.863937979737193;
+        }
+        if( !$this->long0 ) {
+            $this->long0 = 0.7417649320975901 - 0.308341501185665;
+        }
+        /* if scale not set default to 0.9999 */
+        if( !$this->k0 ) {
+            $this->k0 = 0.9999;
+        }
+        $this->s45 = 0.785398163397448;    /* 45° */
+        $this->s90 = 2 * $this->s45;
+        $this->fi0 = $this->lat0;    /* Latitude of projection centre 49° 30' */
+        /*  Ellipsoid Bessel 1841 a = 6377397.155m 1/f = 299.1528128,
+          e2=0.006674372230614;
+         */
+        $this->e2 = $this->es;       /* 0.006674372230614; */
+        $this->e = sqrt( $this->e2 );
+        $this->alfa = sqrt( 1. + ($this->e2 * pow( cos( $this->fi0 ), 4 )) / (1. - $this->e2) );
+        $this->uq = 1.04216856380474;      /* DU(2, 59, 42, 42.69689) */
+        $this->u0 = asin( sin( $this->fi0 ) / $this->alfa );
+        $this->g = pow( (1. + $this->e * sin( $this->fi0 )) / (1. - $this->e * sin( $this->fi0 )), $this->alfa * $this->e / 2. );
+        $this->k = tan( $this->u0 / 2. + $this->s45 ) / pow( tan( $this->fi0 / 2. + $this->s45 ), $this->alfa ) * $this->g;
+        $this->k1 = $this->k0;
+        $this->n0 = $this->a * sqrt( 1. - $this->e2 ) / (1. - $this->e2 * pow( sin( $this->fi0 ), 2 ));
+        $this->s0 = 1.37008346281555;       /* Latitude of pseudo standard parallel 78° 30'00" N */
+        $this->n = sin( $this->s0 );
+        $this->ro0 = $this->k1 * $this->n0 / tan( $this->s0 );
+        $this->ad = $this->s90 - $this->uq;
+        $this->czech = true; /* Always use czech GIS coordinates -> negative ones */
+    }
+    
+    /**
+     * ellipsoid
+     * calculate xy from lat/lon
+     * Constants, identical to inverse transform function
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function forward( $p ) {
+        
+        $lon = $p->x;
+        $lat = $p->y;
+        $delta_lon = Proj4php::$common->adjust_lon( $lon - $this->long0 ); // Delta longitude
+        
+        /* Transformation */
+        $gfi = pow( ((1. + $this->e * sin( $lat )) / (1. - $this->e * sin( $lat )) ), ($this->alfa * $this->e / 2. ) );
+        $u = 2. * (atan( $this->k * pow( tan( $lat / 2. + $this->s45 ), $this->alfa ) / $gfi ) - $this->s45);
+        $deltav = - $delta_lon * $this->alfa;
+        $s = asin( cos( $this->ad ) * sin( $u ) + sin( $this->ad ) * cos( $u ) * cos( $deltav ) );
+        $d = asin( cos( $u ) * sin( $deltav ) / cos( $s ) );
+        $eps = $this->n * $d;
+        $ro = $this->ro0 * pow( tan( $this->s0 / 2. + $this->s45 ), $this->n ) / pow( tan( $s / 2. + $this->s45 ), $this->n );
+        /* x and y are reverted! */
+        //$p->y = ro * cos(eps) / a;
+        //$p->x = ro * sin(eps) / a;
+        $p->y = $ro * cos( $eps ) / 1.0;
+        $p->x = $ro * sin( $eps ) / 1.0;
+
+        if( $this->czech ) {
+            $p->y *= -1.0;
+            $p->x *= -1.0;
+        }
+        
+        return $p;
+    }
+    
+    /**
+     * calculate lat/lon from xy
+     * 
+     * @param Point $p
+     * @return Point $p 
+     */
+    public function inverse( $p ) {
+        
+        /* Transformation */
+        /* revert y, x */
+        $tmp = $p->x;
+        $p->x = $p->y;
+        $p->y = $tmp;
+        
+        if( $this->czech ) {
+            $p->y *= -1.0;
+            $p->x *= -1.0;
+        }
+        
+        $ro = sqrt( $p->x * $p->x + $p->y * $p->y );
+        $eps = atan2( $p->y, $p->x );
+        $d = $eps / sin( $this->s0 );
+        $s = 2. * (atan( pow( $this->ro0 / $ro, 1. / $this->n ) * tan( $this->s0 / 2. + $this->s45 ) ) - $this->s45);
+        $u = asin( cos( $this->ad ) * sin( $s ) - sin( $this->ad ) * cos( $s ) * cos( $d ) );
+        $deltav = asin( cos( $s ) * sin( $d ) / cos( $u ) );
+        $p->x = $this->long0 - $deltav / $this->alfa;
+        
+        /* ITERATION FOR $lat */
+        $fi1 = $u;
+        $ok = 0;
+        $iter = 0;
+        do {
+            $p->y = 2. * ( atan( pow( $this->k, -1. / $this->alfa ) *
+                                pow( tan( $u / 2. + $this->s45 ), 1. / $this->alfa ) *
+                                pow( (1. + $this->e * sin( $fi1 )) / (1. - $this->e * sin( $fi1 )), $this->e / 2. )
+                      ) - $this->s45);
+            if( abs( $fi1 - $p->y ) < 0.0000000001 )
+                $ok = 1;
+            $fi1 = $p->y;
+            $iter += 1;
+        } while( $ok == 0 && $iter < 15 );
+        
+        if( $iter >= 15 ) {
+            Proj4php::reportError( "PHI3Z-CONV:Latitude failed to converge after 15 iterations" );
+            //console.log('iter:', iter);
+            return null;
+        }
+
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['krovak'] = new Proj4phpProjKrovak();
@@ -0,0 +1,398 @@
+<?php
+
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/* * *****************************************************************************
+  NAME                  LAMBERT AZIMUTHAL EQUAL-AREA
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Lambert Azimuthal Equal-Area projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  D. Steinwand, EROS      March, 1991
+
+  This function was adapted from the Lambert Azimuthal Equal Area projection
+  code (FORTRAN) in the General Cartographic Transformation Package software
+  which is available from the U.S. Geological Survey National Mapping Division.
+
+  ALGORITHM REFERENCES
+
+  1.  "New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
+  The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
+
+  2.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  3.  "Software Documentation for GCTP General Cartographic Transformation
+  Package", U.S. Geological Survey National Mapping Division, May 1982.
+ * ***************************************************************************** */
+
+class Proj4phpProjLaea {
+
+    protected $S_POLE = 1;
+    protected $N_POLE = 2;
+    protected $EQUIT = 3;
+    protected $OBLIQ = 4;
+
+    protected $P00 = .33333333333333333333;
+    protected $P01 = .17222222222222222222;
+    protected $P02 = .10257936507936507936;
+    protected $P10 = .06388888888888888888;
+    protected $P11 = .06640211640211640211;
+    protected $P20 = .01641501294219154443;
+    
+    /* Initialize the Lambert Azimuthal Equal Area projection
+      ------------------------------------------------------ */
+    public function init() {
+        $t = abs( $this->lat0 );
+        if( abs( $t - Proj4php::$common->HALF_PI ) < Proj4php::$common->EPSLN ) {
+            $this->mode = $this->lat0 < 0. ? $this->S_POLE : $this->N_POLE;
+        } else if( abs( $t ) < Proj4php::$common->EPSLN ) {
+            $this->mode = $this->EQUIT;
+        } else {
+            $this->mode = $this->OBLIQ;
+        }
+        if( $this->es > 0 ) {
+            #$sinphi;
+
+            $this->qp = Proj4php::$common->qsfnz( $this->e, 1.0 );
+            $this->mmf = .5 / (1. - $this->es);
+            $this->apa = $this->authset( $this->es );
+            switch( $this->mode ) {
+                case $this->N_POLE:
+                case $this->S_POLE:
+                    $this->dd = 1.;
+                    break;
+                case $this->EQUIT:
+                    $this->rq = sqrt( .5 * $this->qp );
+                    $this->dd = 1. / $this->rq;
+                    $this->xmf = 1.;
+                    $this->ymf = .5 * $this->qp;
+                    break;
+                case $this->OBLIQ:
+                    $this->rq = sqrt( .5 * $this->qp );
+                    $sinphi = sin( $this->lat0 );
+                    $this->sinb1 = Proj4php::$common->qsfnz( $this->e, $sinphi ) / $this->qp;
+                    $this->cosb1 = sqrt( 1. - $this->sinb1 * $this->sinb1 );
+                    $this->dd = cos( $this->lat0 ) / (sqrt( 1. - $this->es * $sinphi * $sinphi ) * $this->rq * $this->cosb1);
+                    $this->ymf = ($this->xmf = $this->rq) / $this->dd;
+                    $this->xmf *= $this->dd;
+                    break;
+            }
+        } else {
+            if( $this->mode == $this->OBLIQ ) {
+                $this->sinph0 = sin( $this->lat0 );
+                $this->cosph0 = cos( $this->lat0 );
+            }
+        }
+    }
+
+    /* Lambert Azimuthal Equal Area forward equations--mapping lat,long to x,y
+      ----------------------------------------------------------------------- */
+    public function forward( $p ) {
+
+        /* Forward equations
+          ----------------- */
+        #$x;
+        #$y;
+        $lam = $p->x;
+        $phi = $p->y;
+        $lam = Proj4php::$common->adjust_lon( $lam - $this->long0 );
+
+        if( $this->sphere ) {
+            /*
+            $coslam;
+            $cosphi;
+            $sinphi;
+            */
+            
+            $sinphi = sin( $phi );
+            $cosphi = cos( $phi );
+            $coslam = cos( $lam );
+            switch( $this->mode ) {
+                case $this->OBLIQ:
+                case $this->EQUIT:
+                    $y = ($this->mode == $this->EQUIT) ? 1. + $cosphi * $coslam : 1. + $this->sinph0 * $sinphi + $this->cosph0 * $cosphi * $coslam;
+                    if( y <= Proj4php::$common->EPSLN ) {
+                        Proj4php::reportError( "laea:fwd:y less than eps" );
+                        return null;
+                    }
+                    $y = sqrt( 2. / $y );
+                    $x = $y * cosphi * sin( $lam );
+                    $y *= ($this->mode == $this->EQUIT) ? $sinphi : $this->cosph0 * $sinphi - $this->sinph0 * $cosphi * $coslam;
+                    break;
+                case $this->N_POLE:
+                    $coslam = -$coslam;
+                case $this->S_POLE:
+                    if( abs( $phi + $this->phi0 ) < Proj4php::$common->EPSLN ) {
+                        Proj4php::reportError( "laea:fwd:phi < eps" );
+                        return null;
+                    }
+                    $y = Proj4php::$common->FORTPI - $phi * .5;
+                    $y = 2. * (($this->mode == $this->S_POLE) ? cos( $y ) : sin( $y ));
+                    $x = $y * sin( $lam );
+                    $y *= $coslam;
+                    break;
+            }
+        } else {
+            /*
+            $coslam;
+            $sinlam;
+            $sinphi;
+            $q;
+            */
+            $sinb = 0.0;
+            $cosb = 0.0;
+            $b = 0.0;
+
+            $coslam = cos( $lam );
+            $sinlam = sin( $lam );
+            $sinphi = sin( $phi );
+            $q = Proj4php::$common->qsfnz( $this->e, $sinphi );
+            if( $this->mode == $this->OBLIQ || $this->mode == $this->EQUIT ) {
+                $sinb = $q / $this->qp;
+                $cosb = sqrt( 1. - $sinb * $sinb );
+            }
+            switch( $this->mode ) {
+                case $this->OBLIQ:
+                    $b = 1. + $this->sinb1 * $sinb + $this->cosb1 * $cosb * $coslam;
+                    break;
+                case $this->EQUIT:
+                    $b = 1. + $cosb * $coslam;
+                    break;
+                case $this->N_POLE:
+                    $b = Proj4php::$common->HALF_PI + $phi;
+                    $q = $this->qp - $q;
+                    break;
+                case $this->S_POLE:
+                    $b = $phi - Proj4php::$common->HALF_PI;
+                    $q = $this->qp + $q;
+                    break;
+            }
+            if( abs( $b ) < Proj4php::$common->EPSLN ) {
+                Proj4php::reportError( "laea:fwd:b < eps" );
+                return null;
+            }
+            switch( $this->mode ) {
+                case $this->OBLIQ:
+                case $this->EQUIT:
+                    $b = sqrt( 2. / $b );
+                    if( $this->mode == $this->OBLIQ ) {
+                        $y = $this->ymf * $b * ($this->cosb1 * $sinb - $this->sinb1 * $cosb * $coslam);
+                    } else {
+                        $y = ($b = sqrt( 2. / (1. + $cosb * $coslam) )) * $sinb * $this->ymf;
+                    }
+                    $x = $this->xmf * $b * $cosb * $sinlam;
+                    break;
+                case $this->N_POLE:
+                case $this->S_POLE:
+                    if( q >= 0. ) {
+                        $x = ($b = sqrt( $q )) * $sinlam;
+                        $y = $coslam * (($this->mode == $this->S_POLE) ? $b : -$b);
+                    } else {
+                        $x = $y = 0.;
+                    }
+                    break;
+            }
+        }
+
+        //v 1.0
+        /*
+          $sin_lat=sin(lat);
+          $cos_lat=cos(lat);
+
+          $sin_delta_lon=sin(delta_lon);
+          $cos_delta_lon=cos(delta_lon);
+
+          $g =$this->sin_lat_o * sin_lat +$this->cos_lat_o * cos_lat * cos_delta_lon;
+          if (g == -1.0) {
+          Proj4php::reportError("laea:fwd:Point projects to a circle of radius "+ 2.0 * R);
+          return null;
+          }
+          $ksp = $this->a * sqrt(2.0 / (1.0 + g));
+          $x = ksp * cos_lat * sin_delta_lon + $this->x0;
+          $y = ksp * ($this->cos_lat_o * sin_lat - $this->sin_lat_o * cos_lat * cos_delta_lon) + $this->y0;
+         */
+        $p->x = $this->a * $x + $this->x0;
+        $p->y = $this->a * $y + $this->y0;
+        
+        return $p;
+    }
+    
+    /* Inverse equations
+      ----------------- */
+    public function inverse( $p ) {
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+        $x = $p->x / $this->a;
+        $y = $p->y / $this->a;
+
+        if( $this->sphere ) {
+            $cosz = 0.0;
+            #$rh;
+            $sinz = 0.0;
+
+            $rh = sqrt( $x * $x + $y * $y );
+            $phi = $rh * .5;
+            if( $phi > 1. ) {
+                Proj4php::reportError( "laea:Inv:DataError" );
+                return null;
+            }
+            $phi = 2. * asin( $phi );
+            if( $this->mode == $this->OBLIQ || $this->mode == $this->EQUIT ) {
+                $sinz = sin( $phi );
+                $cosz = cos( $phi );
+            }
+            switch( $this->mode ) {
+                case $this->EQUIT:
+                    $phi = (abs( $rh ) <= Proj4php::$common->EPSLN) ? 0. : asin( $y * $sinz / $rh );
+                    $x *= $sinz;
+                    $y = $cosz * $rh;
+                    break;
+                case $this->OBLIQ:
+                    $phi = (abs( $rh ) <= Proj4php::$common->EPSLN) ? $this->phi0 : asin( $cosz * $this->sinph0 + $y * $sinz * $this->cosph0 / $rh );
+                    $x *= $sinz * $this->cosph0;
+                    $y = ($cosz - sin( $phi ) * $this->sinph0) * $rh;
+                    break;
+                case $this->N_POLE:
+                    $y = -$y;
+                    $phi = Proj4php::$common->HALF_PI - $phi;
+                    break;
+                case $this->S_POLE:
+                    $phi -= Proj4php::$common->HALF_PI;
+                    break;
+            }
+            $lam = ($y == 0. && ($this->mode == $this->EQUIT || $this->mode == $this->OBLIQ)) ? 0. : atan2( $x, $y );
+        } else {
+            /*
+            $cCe;
+            $sCe;
+            $q;
+            $rho;
+            */
+            $ab = 0.0;
+
+            switch( $this->mode ) {
+                case $this->EQUIT:
+                case $this->OBLIQ:
+                    $x /= $this->dd;
+                    $y *= $this->dd;
+                    $rho = sqrt( $x * $x + $y * $y );
+                    if( $rho < Proj4php::$common->EPSLN ) {
+                        $p->x = 0.;
+                        $p->y = $this->phi0;
+                        return $p;
+                    }
+                    $sCe = 2. * asin( .5 * $rho / $this->rq );
+                    $cCe = cos( $sCe );
+                    $x *= ($sCe = sin( $sCe ));
+                    if( $this->mode == $this->OBLIQ ) {
+                        $ab = $cCe * $this->sinb1 + $y * $sCe * $this->cosb1 / $rho;
+                        $q = $this->qp * $ab;
+                        $y = $rho * $this->cosb1 * $cCe - $y * $this->sinb1 * $sCe;
+                    } else {
+                        $ab = $y * $sCe / $rho;
+                        $q = $this->qp * $ab;
+                        $y = $rho * $cCe;
+                    }
+                    break;
+                case $this->N_POLE:
+                    $y = -$y;
+                case $this->S_POLE:
+                    $q = ($x * $x + $y * $y);
+                    if( !$q ) {
+                        $p->x = 0.;
+                        $p->y = $this->phi0;
+                        return $p;
+                    }
+                    /*
+                      q = $this->qp - q;
+                     */
+                    $ab = 1. - $q / $this->qp;
+                    if( $this->mode == $this->S_POLE ) {
+                        $ab = - $ab;
+                    }
+                    break;
+            }
+            $lam = atan2( $x, $y );
+            $phi = $this->authlat( asin( $ab ), $this->apa );
+        }
+
+        /*
+          $Rh = sqrt($p->x *$p->x +$p->y * $p->y);
+          $temp = Rh / (2.0 * $this->a);
+
+          if (temp > 1) {
+          Proj4php::reportError("laea:Inv:DataError");
+          return null;
+          }
+
+          $z = 2.0 * Proj4php::$common.asinz(temp);
+          $sin_z=sin(z);
+          $cos_z=cos(z);
+
+          $lon =$this->long0;
+          if (abs(Rh) > Proj4php::$common->EPSLN) {
+          $lat = Proj4php::$common.asinz($this->sin_lat_o * cos_z +$this-> cos_lat_o * sin_z *$p->y / Rh);
+          $temp =abs($this->lat0) - Proj4php::$common->HALF_PI;
+          if (abs(temp) > Proj4php::$common->EPSLN) {
+          temp = cos_z -$this->sin_lat_o * sin(lat);
+          if(temp!=0.0) lon=Proj4php::$common->adjust_lon($this->long0+atan2($p->x*sin_z*$this->cos_lat_o,temp*Rh));
+          } else if ($this->lat0 < 0.0) {
+          lon = Proj4php::$common->adjust_lon($this->long0 - atan2(-$p->x,$p->y));
+          } else {
+          lon = Proj4php::$common->adjust_lon($this->long0 + atan2($p->x, -$p->y));
+          }
+          } else {
+          lat = $this->lat0;
+          }
+         */
+        //return(OK);
+        $p->x = Proj4php::$common->adjust_lon( $this->long0 + $lam );
+        $p->y = $phi;
+        return $p;
+    }
+
+    /**
+     * determine latitude from authalic latitude
+     * 
+     * @param type $es
+     * @return type 
+     */
+    public function authset( $es ) {
+        #$t;
+        $APA = array( );
+        $APA[0] = $es * $this->P00;
+        $t = $es * $es;
+        $APA[0] += $t * $this->P01;
+        $APA[1] = $t * $this->P10;
+        $t *= $es;
+        $APA[0] += $t * $this->P02;
+        $APA[1] += $t * $this->P11;
+        $APA[2] = $t * $this->P20;
+        return $APA;
+    }
+
+    /**
+     *
+     * @param type $beta
+     * @param type $APA
+     * @return type 
+     */
+    public function authlat( $beta, $APA ) {
+        $t = $beta + $beta;
+        return($beta + $APA[0] * sin( $t ) + $APA[1] * sin( $t + $t ) + $APA[2] * sin( $t + $t + $t ));
+    }
+
+}
+
+Proj4php::$proj['laea'] = new Proj4phpProjLaea();
 \ No newline at end of file
@@ -0,0 +1,166 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                            LAMBERT CONFORMAL CONIC
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Lambert Conformal Conic projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+ *******************************************************************************/
+
+
+//<2104> +proj=lcc +lat_1=10.16666666666667 +lat_0=10.16666666666667 +lon_0=-71.60561777777777 +k_0=1 +x0=-17044 +x0=-23139.97 +ellps=intl +units=m +no_defs  no_defs
+// Initialize the Lambert Conformal conic projection
+// -----------------------------------------------------------------
+//class Proj4phpProjlcc = Class.create();
+class Proj4phpProjLcc {
+
+    public function init() {
+        // array of:  r_maj,r_min,lat1,lat2,c_lon,c_lat,false_east,false_north
+        //double c_lat;                   /* center latitude                      */
+        //double c_lon;                   /* center longitude                     */
+        //double lat1;                    /* first standard parallel              */
+        //double lat2;                    /* second standard parallel             */
+        //double r_maj;                   /* major axis                           */
+        //double r_min;                   /* minor axis                           */
+        //double false_east;              /* x offset in meters                   */
+        //double false_north;             /* y offset in meters                   */
+
+        //if lat2 is not defined
+        if( !isset($this->lat2) ) {
+            $this->lat2 = $this->lat0;
+        }
+        
+        //if k0 is not defined
+        if( !isset($this->k0) )
+            $this->k0 = 1.0;
+
+        // Standard Parallels cannot be equal and on opposite sides of the equator
+        if( abs( $this->lat1 + $this->lat2 ) < Proj4php::$common->EPSLN ) {
+            Proj4php::reportError( "lcc:init: Equal Latitudes" );
+            return;
+        }
+
+        $temp = $this->b / $this->a;
+        $this->e = sqrt( 1.0 - $temp * $temp );
+
+        $sin1 = sin( $this->lat1 );
+        $cos1 = cos( $this->lat1 );
+        $ms1 = Proj4php::$common->msfnz( $this->e, $sin1, $cos1 );
+        $ts1 = Proj4php::$common->tsfnz( $this->e, $this->lat1, $sin1 );
+
+        $sin2 = sin( $this->lat2 );
+        $cos2 = cos( $this->lat2 );
+        $ms2 = Proj4php::$common->msfnz( $this->e, $sin2, $cos2 );
+        $ts2 = Proj4php::$common->tsfnz( $this->e, $this->lat2, $sin2 );
+
+        $ts0 = Proj4php::$common->tsfnz( $this->e, $this->lat0, sin( $this->lat0 ) );
+
+        if( abs( $this->lat1 - $this->lat2 ) > Proj4php::$common->EPSLN ) {
+            $this->ns = log( $ms1 / $ms2 ) / log( $ts1 / $ts2 );
+        } else {
+            $this->ns = $sin1;
+        }
+        $this->f0 = $ms1 / ($this->ns * pow( $ts1, $this->ns ));
+        $this->rh = $this->a * $this->f0 * pow( $ts0, $this->ns );
+        
+        if( !isset($this->title) )
+            $this->title = "Lambert Conformal Conic";
+    }
+
+    // Lambert Conformal conic forward equations--mapping lat,long to x,y
+    // -----------------------------------------------------------------
+    public function forward( $p ) {
+
+        $lon = $p->x;
+        $lat = $p->y;
+
+        // convert to radians
+        if( $lat <= 90.0 && $lat >= -90.0 && $lon <= 180.0 && $lon >= -180.0 ) {
+            //lon = lon * Proj4php::$common.D2R;
+            //lat = lat * Proj4php::$common.D2R;
+        } else {
+            Proj4php::reportError( "lcc:forward: llInputOutOfRange: " . $lon . " : " . $lat );
+            return null;
+        }
+
+        $con = abs( abs( $lat ) - Proj4php::$common->HALF_PI );
+        
+        if( $con > Proj4php::$common->EPSLN ) {
+            $ts = Proj4php::$common->tsfnz( $this->e, $lat, sin( $lat ) );
+            $rh1 = $this->a * $this->f0 * pow( $ts, $this->ns );
+        } else {
+            $con = $lat * $this->ns;
+            if( $con <= 0 ) {
+                Proj4php::reportError( "lcc:forward: No Projection" );
+                return null;
+            }
+            $rh1 = 0;
+        }
+        
+        $theta = $this->ns * Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        $p->x = $this->k0 * ($rh1 * sin( $theta )) + $this->x0;
+        $p->y = $this->k0 * ($this->rh - $rh1 * cos( $theta )) + $this->y0;
+
+        return $p;
+    }
+    
+    /**
+     * Lambert Conformal Conic inverse equations--mapping x,y to lat/long
+     * 
+     * @param type $p
+     * @return null 
+     */
+    public function inverse( $p ) {
+        
+        $x = ($p->x - $this->x0) / $this->k0;
+        $y = ($this->rh - ($p->y - $this->y0) / $this->k0);
+        if( $this->ns > 0 ) {
+            $rh1 = sqrt( $x * $x + $y * $y );
+            $con = 1.0;
+        } else {
+            $rh1 = -sqrt( $x * $x + $y * $y );
+            $con = -1.0;
+        }
+        $theta = 0.0;
+        if( $rh1 != 0 ) {
+            $theta = atan2( ($con * $x ), ($con * $y ) );
+        }
+        if( ($rh1 != 0) || ($this->ns > 0.0) ) {
+            $con = 1.0 / $this->ns;
+            $ts = pow( ($rh1 / ($this->a * $this->f0) ), $con );
+            $lat = Proj4php::$common->phi2z( $this->e, $ts );
+            if( $lat == -9999 )
+                return null;
+        } else {
+            $lat = -Proj4php::$common->HALF_PI;
+        }
+        $lon = Proj4php::$common->adjust_lon( $theta / $this->ns + $this->long0 );
+
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+}
+
+Proj4php::$proj['lcc'] = new Proj4phpProjLcc();
+
+
@@ -0,0 +1,129 @@
+<?php
+
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/* * *****************************************************************************
+  NAME                            MERCATOR
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Mercator projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  D. Steinwand, EROS      Nov, 1991
+  T. Mittan		Mar, 1993
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+  Printing Office, Washington D.C., 1989.
+ * ***************************************************************************** */
+
+//static double r_major = a;		   /* major axis 				*/
+//static double r_minor = b;		   /* minor axis 				*/
+//static double lon_center = long0;	   /* Center longitude (projection center) */
+//static double lat_origin =  lat0;	   /* center latitude			*/
+//static double e,es;		           /* eccentricity constants		*/
+//static double m1;		               /* small value m			*/
+//static double false_northing = y0;   /* y offset in meters			*/
+//static double false_easting = x0;	   /* x offset in meters			*/
+//scale_fact = k0 
+
+class Proj4phpProjMerc {
+
+    public function init() {
+        //?$this->temp = $this->r_minor / $this->r_major;
+        //$this->temp = $this->b / $this->a;
+        //$this->es = 1.0 - sqrt($this->temp);
+        //$this->e = sqrt( $this->es );
+        //?$this->m1 = cos($this->lat_origin) / (sqrt( 1.0 - $this->es * sin($this->lat_origin) * sin($this->lat_origin)));
+        //$this->m1 = cos(0.0) / (sqrt( 1.0 - $this->es * sin(0.0) * sin(0.0)));
+        if( $this->lat_ts ) {
+            if( $this->sphere ) {
+                $this->k0 = cos( $this->lat_ts );
+            } else {
+                $this->k0 = Proj4php::$common->msfnz( $this->es, sin( $this->lat_ts ), cos( $this->lat_ts ) );
+            }
+        }
+    }
+
+    /* Mercator forward equations--mapping lat,long to x,y
+      -------------------------------------------------- */
+
+    public function forward( $p ) {
+        
+        //alert("ll2m coords : ".coords);
+        $lon = $p->x;
+        $lat = $p->y;
+        // convert to radians
+        if( $lat * Proj4php::$common->R2D > 90.0 &&
+                  $lat * Proj4php::$common->R2D < -90.0 &&
+                  $lon * Proj4php::$common->R2D > 180.0 &&
+                  $lon * Proj4php::$common->R2D < -180.0 ) {
+            Proj4php::reportError( "merc:forward: llInputOutOfRange: " . $lon . " : " . $lat );
+            return null;
+        }
+        
+        if( abs( abs( $lat ) - Proj4php::$common->HALF_PI ) <= Proj4php::$common->EPSLN ) {
+            Proj4php::reportError( "merc:forward: ll2mAtPoles" );
+            return null;
+        } else {
+            if( $this->sphere ) {
+                $x = $this->x0 + $this->a * $this->k0 * Proj4php::$common->adjust_lon( $lon - $this->long0 );
+                $y = $this->y0 + $this->a * $this->k0 * log( tan( Proj4php::$common->FORTPI + 0.5 * $lat ) );
+            } else {
+                $sinphi = sin( lat );
+                $ts = Proj4php::$common->tsfnz( $this->e, $lat, $sinphi );
+                $x = $this->x0 + $this->a * $this->k0 * Proj4php::$common->adjust_lon( $lon - $this->long0 );
+                $y = $this->y0 - $this->a * $this->k0 * log( $ts );
+            }
+            
+            $p->x = $x;
+            $p->y = $y;
+            
+            return $p;
+        }
+    }
+
+    /* Mercator inverse equations--mapping x,y to lat/long
+      -------------------------------------------------- */
+
+    public function inverse( $p ) {
+
+        $x = $p->x - $this->x0;
+        $y = $p->y - $this->y0;
+        
+        if( $this->sphere ) {
+            $lat = Proj4php::$common->HALF_PI - 2.0 * atan( exp( -$y / $this->a * $this->k0 ) );
+        } else {
+            $ts = exp( -$y / ($this->a * $this->k0) );
+            $lat = Proj4php::$common->phi2z( $this->e, $ts );
+            if( $lat == -9999 ) {
+                Proj4php::reportError( "merc:inverse: lat = -9999" );
+                return null;
+            }
+        }
+        $lon = Proj4php::$common->adjust_lon( $this->long0 + $x / ($this->a * $this->k0) );
+
+        $p->x = $lon;
+        $p->y = $lat;
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['merc'] = new Proj4phpProjMerc();
+
+
@@ -0,0 +1,82 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                    MILLER CYLINDRICAL
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Miller Cylindrical projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  T. Mittan		March, 1993
+
+  This function was adapted from the Lambert Azimuthal Equal Area projection
+  code (FORTRAN) in the General Cartographic Transformation Package software
+  which is available from the U.S. Geological Survey National Mapping Division.
+
+  ALGORITHM REFERENCES
+
+  1.  "New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
+  The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
+
+  2.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  3.  "Software Documentation for GCTP General Cartographic Transformation
+  Package", U.S. Geological Survey National Mapping Division, May 1982.
+ * ***************************************************************************** */
+
+class Proj4phpProjMill {
+    /* Initialize the Miller Cylindrical projection
+      ------------------------------------------- */
+
+    public function init() {
+        //no-op
+    }
+
+    /* Miller Cylindrical forward equations--mapping lat,long to x,y
+      ------------------------------------------------------------ */
+    public function forward( $p ) {
+        
+        $lon = $p->x;
+        $lat = $p->y;
+        
+        /* Forward equations
+          ----------------- */
+        $dlon = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        $x = $this->x0 + $this->a * $dlon;
+        $y = $this->y0 + $this->a * log( tan( (Proj4php::$common->PI / 4.0) + ($lat / 2.5) ) ) * 1.25;
+
+        $p->x = $x;
+        $p->y = $y;
+        
+        return $p;
+    }
+
+    /* Miller Cylindrical inverse equations--mapping x,y to lat/long
+      ------------------------------------------------------------ */
+    public function inverse( $p ) {
+        
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+
+        $lon = Proj4php::$common->adjust_lon( $this->long0 + $p->x / $this->a );
+        $lat = 2.5 * (atan( exp( 0.8 * $p->y / $this->a ) ) - Proj4php::$common->PI / 4.0);
+
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+}
+
+Proj4php::$proj['mill'] = new Proj4phpProjMill();
 \ No newline at end of file
@@ -0,0 +1,121 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                            MOLLWEIDE
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the MOllweide projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  D. Steinwand, EROS      May, 1991;  Updated Sept, 1992; Updated Feb, 1993
+  S. Nelson, EDC		Jun, 2993;	Made corrections in precision and
+  number of iterations.
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+  Printing Office, Washington D.C., 1989.
+
+  2.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+ ****************************************************************************** */
+
+class Proj4phpProjMoll {
+    /* Initialize the Mollweide projection
+      ------------------------------------ */
+
+    public function init() {
+        //no-op
+    }
+
+    /* Mollweide forward equations--mapping lat,long to x,y
+      ---------------------------------------------------- */
+    public function forward( $p ) {
+
+        /* Forward equations
+          ----------------- */
+        $lon = $p->x;
+        $lat = $p->y;
+
+        $delta_lon = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        $theta = $lat;
+        $con = Proj4php::$common->PI * sin( $lat );
+
+        /* Iterate using the Newton-Raphson method to find theta
+          ----------------------------------------------------- */
+        for( $i = 0; true; ++$i ) {
+            $delta_theta = -($theta + sin( $theta ) - $con) / (1.0 + cos( $theta ));
+            $theta += $delta_theta;
+            if( abs( $delta_theta ) < Proj4php::$common->EPSLN )
+                break;
+            if( $i >= 50 ) {
+                Proj4php::reportError( "moll:Fwd:IterationError" );
+                //return(241);
+            }
+        }
+        $theta /= 2.0;
+
+        /* If the latitude is 90 deg, force the x coordinate to be "0 . false easting"
+          this is done here because of precision problems with "cos(theta)"
+          -------------------------------------------------------------------------- */
+        if( Proj4php::$common->PI / 2 - abs( $lat ) < Proj4php::$common->EPSLN )
+            $delta_lon = 0;
+        $x = 0.900316316158 * $this->a * $delta_lon * cos( $theta ) + $this->x0;
+        $y = 1.4142135623731 * $this->a * sin( $theta ) + $this->y0;
+
+        $p->x = $x;
+        $p->y = $y;
+        return $p;
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function inverse( $p ) {
+        #$theta;
+        #$arg;
+
+        /* Inverse equations
+          ----------------- */
+        $p->x-= $this->x0;
+        //~ $p->y -= $this->y0;
+        $arg = $p->y / (1.4142135623731 * $this->a);
+
+        /* Because of division by zero problems, 'arg' can not be 1.0.  Therefore
+          a number very close to one is used instead.
+          ------------------------------------------------------------------- */
+        if( abs( $arg ) > 0.999999999999 )
+            $arg = 0.999999999999;
+        $theta = asin( $arg );
+        $lon = Proj4php::$common->adjust_lon( $this->long0 + ($p->x / (0.900316316158 * $this->a * cos( $theta ))) );
+        if( $lon < (-Proj4php::$common->PI) )
+            $lon = -Proj4php::$common->PI;
+        if( $lon > Proj4php::$common->PI )
+            $lon = Proj4php::$common->PI;
+        $arg = (2.0 * $theta + sin( 2.0 * $theta )) / Proj4php::$common->PI;
+        if( abs( $arg ) > 1.0 )
+            $arg = 1.0;
+        $lat = asin( $arg );
+        //return(OK);
+
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+}
+
+Proj4php::$proj['moll'] = new Proj4phpProjMoll();
 \ No newline at end of file
@@ -0,0 +1,338 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                            NEW ZEALAND MAP GRID
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the New Zealand Map Grid projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+
+  ALGORITHM REFERENCES
+
+  1.  Department of Land and Survey Technical Circular 1973/32
+  http://www.linz.govt.nz/docs/miscellaneous/nz-map-definition.pdf
+
+  2.  OSG Technical Report 4.1
+  http://www.linz.govt.nz/docs/miscellaneous/nzmg.pdf
+
+
+  IMPLEMENTATION NOTES
+
+  The two references use different symbols for the calculated values. This
+  implementation uses the variable names similar to the symbols in reference [1].
+
+  The alogrithm uses different units for delta latitude and delta longitude.
+  The delta latitude is assumed to be in units of seconds of arc x 10^-5.
+  The delta longitude is the usual radians. Look out for these conversions.
+
+  The algorithm is described using complex arithmetic. There were three
+  options:
+ * find and use a Javascript library for complex arithmetic
+ * write my own complex library
+ * expand the complex arithmetic by hand to simple arithmetic
+
+  This implementation has expanded the complex multiplication operations
+  into parallel simple arithmetic operations for the real and imaginary parts.
+  The imaginary part is way over to the right of the display; this probably
+  violates every coding standard in the world, but, to me, it makes it much
+  more obvious what is going on.
+
+  The following complex operations are used:
+  - addition
+  - multiplication
+  - division
+  - complex number raised to integer power
+  - summation
+
+  A summary of complex arithmetic operations:
+  (from http://en.wikipedia.org/wiki/Complex_arithmetic)
+  addition:       (a + bi) + (c + di) = (a + c) + (b + d)i
+  subtraction:    (a + bi) - (c + di) = (a - c) + (b - d)i
+  multiplication: (a + bi) x (c + di) = (ac - bd) + (bc + ad)i
+  division:       (a + bi) / (c + di) = [(ac + bd)/(cc + dd)] + [(bc - ad)/(cc + dd)]i
+
+  The algorithm needs to calculate summations of simple and complex numbers. This is
+  implemented using a for-loop, pre-loading the summed value to zero.
+
+  The algorithm needs to calculate theta^2, theta^3, etc while doing a summation.
+  There are three possible implementations:
+  - use pow in the summation loop - except for complex numbers
+  - precalculate the values before running the loop
+  - calculate theta^n = theta^(n-1) * theta during the loop
+  This implementation uses the third option for both real and complex arithmetic.
+
+  For example
+  psi_n = 1;
+  sum = 0;
+  for (n = 1; n <=6; n++) {
+  psi_n1 = psi_n * psi;       // calculate psi^(n+1)
+  psi_n = psi_n1;
+  sum = sum + A[n] * psi_n;
+  }
+
+
+  TEST VECTORS
+
+  NZMG E, N:         2487100.638      6751049.719     metres
+  NZGD49 long, lat:      172.739194       -34.444066  degrees
+
+  NZMG E, N:         2486533.395      6077263.661     metres
+  NZGD49 long, lat:      172.723106       -40.512409  degrees
+
+  NZMG E, N:         2216746.425      5388508.765     metres
+  NZGD49 long, lat:      169.172062       -46.651295  degrees
+
+  Note that these test vectors convert from NZMG metres to lat/long referenced
+  to NZGD49, not the more usual WGS84. The difference is about 70m N/S and about
+  10m E/W.
+
+  These test vectors are provided in reference [1]. Many more test
+  vectors are available in
+  http://www.linz.govt.nz/docs/topography/topographicdata/placenamesdatabase/nznamesmar08.zip
+  which is a catalog of names on the 260-series maps.
+
+
+  EPSG CODES
+
+  NZMG     EPSG:27200
+  NZGD49   EPSG:4272
+
+  http://spatialreference.org/ defines these as
+  Proj4php.defs["EPSG:4272"] = "+proj=longlat +ellps=intl +datum=nzgd49 +no_defs ";
+  Proj4php.defs["EPSG:27200"] = "+proj=nzmg +lat_0=-41 +lon_0=173 +x_0=2510000 +y_0=6023150 +ellps=intl +datum=nzgd49 +units=m +no_defs ";
+
+
+  LICENSE
+  Copyright: Stephen Irons 2008
+  Released under terms of the LGPL as per: http://www.gnu.org/copyleft/lesser.html
+
+ * ***************************************************************************** */
+
+/**
+  Initialize New Zealand Map Grip projection
+ */
+class Proj4phpProjNzmg {
+
+    /**
+     * iterations: Number of iterations to refine inverse transform.
+     *     0 -> km accuracy
+     *     1 -> m accuracy -- suitable for most mapping applications
+     *     2 -> mm accuracy
+     */
+    protected $iterations = 1;
+
+    /**
+     * 
+     */
+    public function init() {
+        $this->A = array( );
+        $this->A[1] = +0.6399175073;
+        $this->A[2] = -0.1358797613;
+        $this->A[3] = +0.063294409;
+        $this->A[4] = -0.02526853;
+        $this->A[5] = +0.0117879;
+        $this->A[6] = -0.0055161;
+        $this->A[7] = +0.0026906;
+        $this->A[8] = -0.001333;
+        $this->A[9] = +0.00067;
+        $this->A[10] = -0.00034;
+
+        $this->B_re = array( );
+        $this->B_im = array( );
+        $this->B_re[1] = +0.7557853228;
+        $this->B_im[1] = 0.0;
+        $this->B_re[2] = +0.249204646;
+        $this->B_im[2] = +0.003371507;
+        $this->B_re[3] = -0.001541739;
+        $this->B_im[3] = +0.041058560;
+        $this->B_re[4] = -0.10162907;
+        $this->B_im[4] = +0.01727609;
+        $this->B_re[5] = -0.26623489;
+        $this->B_im[5] = -0.36249218;
+        $this->B_re[6] = -0.6870983;
+        $this->B_im[6] = -1.1651967;
+
+        $this->C_re = array( );
+        $this->C_im = array( );
+        $this->C_re[1] = +1.3231270439;
+        $this->C_im[1] = 0.0;
+        $this->C_re[2] = -0.577245789;
+        $this->C_im[2] = -0.007809598;
+        $this->C_re[3] = +0.508307513;
+        $this->C_im[3] = -0.112208952;
+        $this->C_re[4] = -0.15094762;
+        $this->C_im[4] = +0.18200602;
+        $this->C_re[5] = +1.01418179;
+        $this->C_im[5] = +1.64497696;
+        $this->C_re[6] = +1.9660549;
+        $this->C_im[6] = +2.5127645;
+
+        $this->D = array( );
+        $this->D[1] = +1.5627014243;
+        $this->D[2] = +0.5185406398;
+        $this->D[3] = -0.03333098;
+        $this->D[4] = -0.1052906;
+        $this->D[5] = -0.0368594;
+        $this->D[6] = +0.007317;
+        $this->D[7] = +0.01220;
+        $this->D[8] = +0.00394;
+        $this->D[9] = -0.0013;
+    }
+
+    /**
+      New Zealand Map Grid Forward  - long/lat to x/y
+      long/lat in radians
+     */
+    public function forward( $p ) {
+        
+        $lon = $p->x;
+        $lat = $p->y;
+
+        $delta_lat = $lat - $this->lat0;
+        $delta_lon = $lon - $this->long0;
+
+        // 1. Calculate d_phi and d_psi    ...                          // and d_lambda
+        // For this algorithm, delta_latitude is in seconds of arc x 10-5, so we need to scale to those units. Longitude is radians.
+        $d_phi = $delta_lat / Proj4php::$common->SEC_TO_RAD * 1E-5;
+        $d_lambda = $delta_lon;
+        $d_phi_n = 1;  // d_phi^0
+
+        $d_psi = 0;
+        for( $n = 1; $n <= 10; $n++ ) {
+            $d_phi_n = $d_phi_n * $d_phi;
+            $d_psi = $d_psi + $this->A[$n] * $d_phi_n;
+        }
+
+        // 2. Calculate theta
+        $th_re = $d_psi;
+        $th_im = $d_lambda;
+
+        // 3. Calculate z
+        $th_n_re = 1;
+        $th_n_im = 0;  // theta^0
+        #$th_n_re1;
+        #$th_n_im1;
+
+        $z_re = 0;
+        $z_im = 0;
+        for( $n = 1; $n <= 6; $n++ ) {
+            $th_n_re1 = $th_n_re * $th_re - $th_n_im * $th_im;
+            $th_n_im1 = $th_n_im * $th_re + $th_n_re * $th_im;
+            $th_n_re = $th_n_re1;
+            $th_n_im = $th_n_im1;
+            $z_re = $z_re + $this->B_re[$n] * $th_n_re - $this->B_im[$n] * $th_n_im;
+            $z_im = $z_im + $this->B_im[$n] * $th_n_re + $this->B_re[$n] * $th_n_im;
+        }
+
+        // 4. Calculate easting and northing
+        $p->x = ($z_im * $this->a) + $this->x0;
+        $p->y = ($z_re * $this->a) + $this->y0;
+
+        return $p;
+    }
+
+    /**
+      New Zealand Map Grid Inverse  -  x/y to long/lat
+     */
+    public function inverse( $p ) {
+
+        $x = $p->x;
+        $y = $p->y;
+
+        $delta_x = $x - $this->x0;
+        $delta_y = $y - $this->y0;
+
+        // 1. Calculate z
+        $z_re = $delta_y / $this->a;
+        $z_im = $delta_x / $this->a;
+
+        // 2a. Calculate theta - first approximation gives km accuracy
+        $z_n_re = 1;
+        $z_n_im = 0;  // z^0
+        $z_n_re1;
+        $z_n_im1;
+
+        $th_re = 0;
+        $th_im = 0;
+        for( $n = 1; $n <= 6; $n++ ) {
+            $z_n_re1 = $z_n_re * $z_re - $z_n_im * $z_im;
+            $z_n_im1 = $z_n_im * $z_re + $z_n_re * $z_im;
+            $z_n_re = $z_n_re1;
+            $z_n_im = $z_n_im1;
+            $th_re = $th_re + $this->C_re[$n] * $z_n_re - $this->C_im[$n] * $z_n_im;
+            $th_im = $th_im + $this->C_im[$n] * $z_n_re + $this->C_re[$n] * $z_n_im;
+        }
+
+        // 2b. Iterate to refine the accuracy of the calculation
+        //        0 iterations gives km accuracy
+        //        1 iteration gives m accuracy -- good enough for most mapping applications
+        //        2 iterations bives mm accuracy
+        for( $i = 0; $i < $this->iterations; $i++ ) {
+            $th_n_re = $th_re;
+            $th_n_im = $th_im;
+            $th_n_re1;
+            $th_n_im1;
+
+            $num_re = $z_re;
+            $num_im = $z_im;
+            for( $n = 2; $n <= 6; $n++ ) {
+                $th_n_re1 = $th_n_re * th_re - $th_n_im * $th_im;
+                $th_n_im1 = $th_n_im * $th_re + $th_n_re * $th_im;
+                $th_n_re = $th_n_re1;
+                $th_n_im = $th_n_im1;
+                $num_re = $num_re + ($n - 1) * ($this->B_re[$n] * $th_n_re - $this->B_im[$n] * $th_n_im);
+                $num_im = $num_im + (n - 1) * ($this->B_im[$n] * $th_n_re + $this->B_re[$n] * $th_n_im);
+            }
+
+            $th_n_re = 1;
+            $th_n_im = 0;
+            $den_re = $this->B_re[1];
+            $den_im = $this->B_im[1];
+            for( $n = 2; $n <= 6; $n++ ) {
+                $th_n_re1 = $th_n_re * $th_re - $th_n_im * $th_im;
+                $th_n_im1 = $th_n_im * $th_re + $th_n_re * $th_im;
+                $th_n_re = $th_n_re1;
+                $th_n_im = $th_n_im1;
+                $den_re = $den_re + $n * ($this->B_re[$n] * $th_n_re - $this->B_im[$n] * $th_n_im);
+                $den_im = $den_im + $n * ($this->B_im[n] * $th_n_re + $this->B_re[$n] * $th_n_im);
+            }
+
+            // Complex division
+            $den2 = $den_re * $den_re + $den_im * $den_im;
+            $th_re = ($num_re * $den_re + $num_im * $den_im) / $den2;
+            $th_im = ($num_im * $den_re - $num_re * $den_im) / $den2;
+        }
+
+        // 3. Calculate d_phi              ...                                    // and d_lambda
+        $d_psi = $th_re;
+        $d_lambda = $th_im;
+        $d_psi_n = 1;  // d_psi^0
+
+        $d_phi = 0;
+        for( $n = 1; $n <= 9; $n++ ) {
+            $d_psi_n = $d_psi_n * $d_psi;
+            $d_phi = $d_phi + $this->D[$n] * $d_psi_n;
+        }
+
+        // 4. Calculate latitude and longitude
+        // d_phi is calcuated in second of arc * 10^-5, so we need to scale back to radians. d_lambda is in radians.
+        $lat = $this->lat0 + ($d_phi * Proj4php::$common->SEC_TO_RAD * 1E5);
+        $lon = $this->long0 + $d_lambda;
+
+        $p->x = $lon;
+        $p->y = $lat;
+
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['nzmg'] = new Proj4phpProjNzmg();
@@ -0,0 +1,301 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/* * *****************************************************************************
+  NAME                       OBLIQUE MERCATOR (HOTINE)
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Oblique Mercator projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  T. Mittan		Mar, 1993
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+  Printing Office, Washington D.C., 1989.
+ * ***************************************************************************** */
+
+class Proj4phpProjOmerc {
+    /* Initialize the Oblique Mercator  projection
+      ------------------------------------------ */
+
+    public function init() {
+        if( !$this->mode )
+            $this->mode = 0;
+        if( !$this->lon1 ) {
+            $this->lon1 = 0;
+            $this->mode = 1;
+        }
+        if( !$this->lon2 )
+            $this->lon2 = 0;
+        if( !$this->lat2 )
+            $this->lat2 = 0;
+
+        /* Place parameters in static storage for common use
+          ------------------------------------------------- */
+        $temp = $this->b / $this->a;
+        $es = 1.0 - pow( $temp, 2 );
+        $e = sqrt( $es );
+
+        $this->sin_p20 = sin( $this->lat0 );
+        $this->cos_p20 = cos( $this->lat0 );
+
+        $this->con = 1.0 - $this->es * $this->sin_p20 * $this->sin_p20;
+        $this->com = sqrt( 1.0 - $es );
+        $this->bl = sqrt( 1.0 + $this->es * pow( $this->cos_p20, 4.0 ) / (1.0 - $es) );
+        $this->al = $this->a * $this->bl * $this->k0 * $this->com / $this->con;
+        if( abs( $this->lat0 ) < Proj4php::$common->EPSLN ) {
+            $this->ts = 1.0;
+            $this->d = 1.0;
+            $this->el = 1.0;
+        } else {
+            $this->ts = Proj4php::$common->tsfnz( $this->e, $this->lat0, $this->sin_p20 );
+            $this->con = sqrt( $this->con );
+            $this->d = $this->bl * $this->com / ($this->cos_p20 * $this->con);
+            if( ($this->d * $this->d - 1.0) > 0.0 ) {
+                if( $this->lat0 >= 0.0 ) {
+                    $this->f = $this->d + sqrt( $this->d * $this->d - 1.0 );
+                } else {
+                    $this->f = $this->d - sqrt( $this->d * $this->d - 1.0 );
+                }
+            } else {
+                $this->f = $this->d;
+            }
+            $this->el = $this->f * pow( $this->ts, $this->bl );
+        }
+
+        //$this->longc=52.60353916666667;
+
+        if( $this->mode != 0 ) {
+            $this->g = .5 * ($this->f - 1.0 / $this->f);
+            $this->gama = Proj4php::$common->asinz( sin( $this->alpha ) / $this->d );
+            $this->longc = $this->longc - Proj4php::$common->asinz( $this->g * tan( $this->gama ) ) / $this->bl;
+
+            /* Report parameters common to format B
+              ------------------------------------- */
+            //genrpt(azimuth * R2D,"Azimuth of Central Line:    ");
+            //cenlon(lon_origin);
+            // cenlat(lat_origin);
+
+            $this->con = abs( $this->lat0 );
+            if( ($this->con > Proj4php::$common->EPSLN) && (abs( $this->con - Proj4php::$common->HALF_PI ) > Proj4php::$common->EPSLN) ) {
+                $this->singam = sin( $this->gama );
+                $this->cosgam = cos( $this->gama );
+
+                $this->sinaz = sin( $this->alpha );
+                $this->cosaz = cos( $this->alpha );
+
+                if( $this->lat0 >= 0 ) {
+                    $this->u = ($this->al / $this->bl) * atan( sqrt( $this->d * $this->d - 1.0 ) / $this->cosaz );
+                } else {
+                    $this->u = -($this->al / $this->bl) * atan( sqrt( $this->d * $this->d - 1.0 ) / $this->cosaz );
+                }
+            } else {
+                Proj4php::reportError( "omerc:Init:DataError" );
+            }
+        } else {
+            $this->sinphi = sin( $this->at1 );
+            $this->ts1 = Proj4php::$common->tsfnz( $this->e, $this->lat1, $this->sinphi );
+            $this->sinphi = sin( $this->lat2 );
+            $this->ts2 = Proj4php::$common->tsfnz( $this->e, $this->lat2, $this->sinphi );
+            $this->h = pow( $this->ts1, $this->bl );
+            $this->l = pow( $this->ts2, $this->bl );
+            $this->f = $this->el / $this->h;
+            $this->g = .5 * ($this->f - 1.0 / $this->f);
+            $this->j = ($this->el * $this->el - $this->l * $this->h) / ($this->el * $this->el + $this->l * $this->h);
+            $this->p = ($this->l - $this->h) / ($this->l + $this->h);
+            $this->dlon = $this->lon1 - $this->lon2;
+            if( $this->dlon < -Proj4php::$common->PI )
+                $this->lon2 = $this->lon2 - 2.0 * Proj4php::$common->PI;
+            if( $this->dlon > Proj4php::$common->PI )
+                $this->lon2 = $this->lon2 + 2.0 * Proj4php::$common->PI;
+            $this->dlon = $this->lon1 - $this->lon2;
+            $this->longc = .5 * ($this->lon1 + $this->lon2) - atan( $this->j * tan( .5 * $this->bl * $this->dlon ) / $this->p ) / $this->bl;
+            $this->dlon = Proj4php::$common->adjust_lon( $this->lon1 - $this->longc );
+            $this->gama = atan( sin( $this->bl * $this->dlon ) / $this->g );
+            $this->alpha = Proj4php::$common->asinz( $this->d * sin( $this->gama ) );
+
+            /* Report parameters common to format A
+              ------------------------------------- */
+            if( abs( $this->lat1 - $this->lat2 ) <= Proj4php::$common->EPSLN ) {
+                Proj4php::reportError( "omercInitDataError" );
+                //return(202);
+            } else {
+                $this->con = abs( $this->lat1 );
+            }
+            if( ($this->con <= Proj4php::$common->EPSLN) || (abs( $this->con - Proj4php::$common->HALF_PI ) <= Proj4php::$common->EPSLN) ) {
+                Proj4php::reportError( "omercInitDataError" );
+                //return(202);
+            } else {
+                if( abs( abs( $this->lat0 ) - Proj4php::$common->HALF_PI ) <= Proj4php::$common->EPSLN ) {
+                    Proj4php::reportError( "omercInitDataError" );
+                    //return(202);
+                }
+            }
+
+            $this->singam = sin( $this->gam );
+            $this->cosgam = cos( $this->gam );
+
+            $this->sinaz = sin( $this->alpha );
+            $this->cosaz = cos( $this->alpha );
+
+
+            if( $this->lat0 >= 0 ) {
+                $this->u = ($this->al / $this->bl) * atan( sqrt( $this->d * $this->d - 1.0 ) / $this->cosaz );
+            } else {
+                $this->u = -($this->al / $this->bl) * atan( sqrt( $this->d * $this->d - 1.0 ) / $this->cosaz );
+            }
+        }
+    }
+
+    /* Oblique Mercator forward equations--mapping lat,long to x,y
+      ---------------------------------------------------------- */
+    public function forward( $p ) {
+        
+        /*
+        $theta;   // angle					 
+        $sin_phi;
+        $cos_phi;  // sin and cos value	
+        $b;  // temporary values
+        $c;
+        $t;
+        $tq; // temporary values
+        $con;
+        $n;
+        $ml; // cone constant, small m	
+        $q;
+        $us;
+        $vl;
+        $ul;
+        $vs;
+        $s;
+        $dlon;
+        $ts1;
+        */
+
+        $lon = $p->x;
+        $lat = $p->y;
+        
+        /* Forward equations
+          ----------------- */
+        $sin_phi = sin( $lat );
+        $dlon = Proj4php::$common->adjust_lon( $lon - $this->longc );
+        $vl = sin( $this->bl * $dlon );
+        if( abs( abs( $lat ) - Proj4php::$common->HALF_PI ) > Proj4php::$common->EPSLN ) {
+            $ts1 = Proj4php::$common->tsfnz( $this->e, $lat, $sin_phi );
+            $q = $this->el / (pow( $ts1, $this->bl ));
+            $s = .5 * ($q - 1.0 / $q);
+            $t = .5 * ($q + 1.0 / $q);
+            $ul = ($s * $this->singam - $vl * $this->cosgam) / $t;
+            $con = cos( $this->bl * $dlon );
+            if( abs( con ) < .0000001 ) {
+                $us = $this->al * $this->bl * $dlon;
+            } else {
+                $us = $this->al * atan( ($s * $this->cosgam + $vl * $this->singam) / $con ) / $this->bl;
+                if( $con < 0 )
+                    $us = $us + Proj4php::$common->PI * $this->al / $this->bl;
+            }
+        } else {
+            if( $lat >= 0 ) {
+                $ul = $this->singam;
+            } else {
+                $ul = -$this->singam;
+            }
+            $us = $this->al * $lat / $this->bl;
+        }
+        if( abs( abs( $ul ) - 1.0 ) <= Proj4php::$common->EPSLN ) {
+            //alert("Point projects into infinity","omer-for");
+            Proj4php::reportError( "omercFwdInfinity" );
+            //return(205);
+        }
+        $vs = .5 * $this->al * log( (1.0 - $ul) / (1.0 + $ul) ) / $this->bl;
+        $us = $us - $this->u;
+        $p->x = $this->x0 + $vs * $this->cosaz + $us * $this->sinaz;
+        $p->y = $this->y0 + $us * $this->cosaz - $vs * $this->sinaz;
+
+        return $p;
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function inverse( $p ) {
+        /*
+        $delta_lon; /* Delta longitude (Given longitude - center 
+        $theta;  /* angle
+        $delta_theta; /* adjusted longitude
+        $sin_phi;
+        $cos_phi; /* sin and cos value	
+        $b;  /* temporary values
+        $c;
+        $t;
+        $tq; /* temporary values
+        $con;
+        $n;
+        $ml; /* cone constant, small m	
+        $vs;
+        $us;
+        $q;
+        $s;
+        $ts1;
+        $vl;
+        $ul;
+        $bs;
+        $dlon;
+        $flag;
+        */
+        
+        /* Inverse equations
+          ----------------- */
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+        #$flag = 0;
+        $vs = $p->x * $this->cosaz - $p->y * $this->sinaz;
+        $us = $p->y * $this->cosaz + $p->x * $this->sinaz;
+        $us = $us + $this->u;
+        $q = exp( -$this->bl * $vs / $this->al );
+        $s = .5 * ($q - 1.0 / $q);
+        $t = .5 * ($q + 1.0 / $q);
+        $vl = sin( $this->bl * $us / $this->al );
+        $ul = ($vl * $this->cosgam + $s * $this->singam) / $t;
+        if( abs( abs( $ul ) - 1.0 ) <= Proj4php::$common->EPSLN ) {
+            $lon = $this->longc;
+            if( ul >= 0.0 ) {
+                $lat = Proj4php::$common->HALF_PI;
+            } else {
+                $lat = -Proj4php::$common->HALF_PI;
+            }
+        } else {
+            $con = 1.0 / $this->bl;
+            $ts1 = pow( ($this->el / sqrt( (1.0 + $ul) / (1.0 - $ul) ) ), $con );
+            $lat = Proj4php::$common->phi2z( $this->e, $ts1 );
+            //if ($flag != 0)
+            //return($flag);
+            //~ con = cos($this->bl * us /al);
+            $theta = $this->longc - atan2( ($s * $this->cosgam - $vl * $this->singam ), $con ) / $this->bl;
+            $lon = Proj4php::$common->adjust_lon( $theta );
+        }
+        $p->x = $lon;
+        $p->y = $lat;
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['omerc'] = new Proj4phpProjOmerc();
 \ No newline at end of file
@@ -0,0 +1,139 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/* * *****************************************************************************
+  NAME                             ORTHOGRAPHIC
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Orthographic projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  T. Mittan		Mar, 1993
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+  Printing Office, Washington D.C., 1989.
+ * ***************************************************************************** */
+
+class Proj4phpProjOrtho {
+    
+    /* Initialize the Orthographic projection
+      ------------------------------------- */
+    public function init( $def ) {
+        //double temp;			/* temporary variable		*/
+
+        /* Place parameters in static storage for common use
+          ------------------------------------------------- */;
+        $this->sin_p14 = sin( $this->lat0 );
+        $this->cos_p14 = cos( $this->lat0 );
+    }
+
+    /* Orthographic forward equations--mapping lat,long to x,y
+      --------------------------------------------------- */
+    public function forward( $p ) {
+        
+        /*
+        $sinphi;
+        $cosphi; // sin and cos value
+        $dlon;  // delta longitude value
+        $coslon;  // cos of longitude
+        $ksp;  // scale factor
+        $g;
+        */
+        
+        $lon = $p->x;
+        $lat = $p->y;
+        
+        /* Forward equations
+          ----------------- */
+        $dlon = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+
+        $sinphi = sin( $lat );
+        $cosphi = cos( $lat );
+
+        $coslon = cos( $dlon );
+        $g = $this->sin_p14 * sinphi + $this->cos_p14 * $cosphi * $coslon;
+        $ksp = 1.0;
+        
+        if( ($g > 0) || (abs( $g ) <= Proj4php::$common->EPSLN) ) {
+            $x = $this->a * $ksp * $cosphi * sin( $dlon );
+            $y = $this->y0 + $this->a * $ksp * ($this->cos_p14 * $sinphi - $this->sin_p14 * $cosphi * $coslon);
+        } else {
+            Proj4php::reportError( "orthoFwdPointError" );
+        }
+        
+        $p->x = $x;
+        $p->y = $y;
+        
+        return $p;
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function inverse( $p ) {
+        
+        /*
+        $rh;  // height above ellipsoid	
+        $z;  // angle
+        $sinz;
+        $cosz; // sin of z and cos of z	
+        $temp;
+        $con;
+        $lon;
+        $lat;
+        */
+        
+        /* Inverse equations
+          ----------------- */
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+        $rh = sqrt( $p->x * $p->x + $p->y * $p->y );
+        if( $rh > $this->a + .0000001 ) {
+            Proj4php::reportError( "orthoInvDataError" );
+        }
+        $z = Proj4php::$common->asinz( $rh / $this->a );
+
+        $sinz = sin( $z );
+        $cosz = cos( $z );
+
+        $lon = $this->long0;
+        if( abs( $rh ) <= Proj4php::$common->EPSLN ) {
+            $lat = $this->lat0;
+        }
+        $lat = Proj4php::$common->asinz( $cosz * $this->sin_p14 + ($p->y * $sinz * $this->cos_p14) / $rh );
+        $con = abs( $this->lat0 ) - Proj4php::$common->HALF_PI;
+        if( abs( con ) <= Proj4php::$common->EPSLN ) {
+            if( $this->lat0 >= 0 ) {
+                $lon = Proj4php::$common->adjust_lon( $this->long0 + atan2( $p->x, -$p->y ) );
+            } else {
+                $lon = Proj4php::$common->adjust_lon( $this->long0 - atan2( -$p->x, $p->y ) );
+            }
+        }
+        $con = $cosz - $this->sin_p14 * sin( $lat );
+        
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['ortho'] = new Proj4phpProjOrtho();
 \ No newline at end of file
@@ -0,0 +1,192 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+
+
+/* Function to compute, phi4, the latitude for the inverse of the
+  Polyconic projection.
+  ------------------------------------------------------------ */
+function phi4z( $eccent, $e0, $e1, $e2, $e3, $a, $b, &$c, $phi ) {
+    /*
+    $sinphi;
+    $sin2ph;
+    $tanph;
+    $ml;
+    $mlp;
+    $con1;
+    $con2;
+    $con3;
+    $dphi;
+    $i;
+    */
+
+    $phi = $a;
+    for( $i = 1; $i <= 15; $i++ ) {
+        $sinphi = sin( $phi );
+        $tanphi = tan( $phi );
+        $c = $tanphi * sqrt( 1.0 - $eccent * $sinphi * $sinphi );
+        $sin2ph = sin( 2.0 * $phi );
+        /*
+          ml = e0 * *phi - e1 * sin2ph + e2 * sin (4.0 *  *phi);
+          mlp = e0 - 2.0 * e1 * cos (2.0 *  *phi) + 4.0 * e2 *  cos (4.0 *  *phi);
+         */
+        $ml = $e0 * $phi - $e1 * $sin2ph + $e2 * sin( 4.0 * $phi ) - $e3 * sin( 6.0 * $phi );
+        $mlp = $e0 - 2.0 * $e1 * cos( 2.0 * $phi ) + 4.0 * $e2 * cos( 4.0 * $phi ) - 6.0 * $e3 * cos( 6.0 * $phi );
+        $con1 = 2.0 * $ml + $c * ($ml * $ml + $b) - 2.0 * $a * ($c * $ml + 1.0);
+        $con2 = $eccent * $sin2ph * ($ml * $ml + $b - 2.0 * $a * $ml) / (2.0 * $c);
+        $con3 = 2.0 * ($a - $ml) * ($c * $mlp - 2.0 / $sin2ph) - 2.0 * $mlp;
+        $dphi = $con1 / ($con2 + $con3);
+        $phi += $dphi;
+        if( abs( $dphi ) <= .0000000001 )
+            return($phi);
+    }
+    
+    Proj4php::reportError( "phi4z: No convergence" );
+    
+    return null;
+}
+
+/* Function to compute the constant e4 from the input of the eccentricity
+  of the spheroid, x.  This constant is used in the Polar Stereographic
+  projection.
+  -------------------------------------------------------------------- */
+function e4fn( $x ) {
+    #$con;
+    #$com;
+    $con = 1.0 + $x;
+    $com = 1.0 - $x;
+    return (sqrt( (pow( $con, $con )) * (pow( $com, $com )) ));
+}
+
+/* * *****************************************************************************
+  NAME                             POLYCONIC
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Polyconic projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  T. Mittan		Mar, 1993
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+  Printing Office, Washington D.C., 1989.
+ * ***************************************************************************** */
+
+class Proj4phpProjPoly {
+    
+    /* Initialize the POLYCONIC projection
+      ---------------------------------- */
+    public function init() {
+        #$temp;   /* temporary variable		 */
+        if( $this->lat0 == 0 )
+            $this->lat0 = 90; //$this->lat0 ca
+
+        /* Place parameters in static storage for common use
+          ------------------------------------------------- */
+        $this->temp = $this->b / $this->a;
+        $this->es = 1.0 - pow( $this->temp, 2 ); // devait etre dans tmerc.js mais n y est pas donc je commente sinon retour de valeurs nulles 
+        $this->e = sqrt( $this->es );
+        $this->e0 = Proj4php::$common->e0fn( $this->es );
+        $this->e1 = Proj4php::$common->e1fn( $this->es );
+        $this->e2 = Proj4php::$common->e2fn( $this->es );
+        $this->e3 = Proj4php::$common->e3fn( $this->es );
+        $this->ml0 = Proj4php::$common->mlfn( $this->e0, $this->e1, $this->e2, $this->e3, $this->lat0 ); //si que des zeros le calcul ne se fait pas
+        //if (!$this->ml0) {$this->ml0=0;}
+    }
+
+    /* Polyconic forward equations--mapping lat,long to x,y
+      --------------------------------------------------- */
+    public function forward( $p ) {
+        
+        /*
+        $sinphi;
+        $cosphi; // sin and cos value
+        $al;    // temporary values
+        $c;    // temporary values
+        $con;
+        $ml;  // cone constant, small m	
+        $ms;    // small m
+        $x;
+        $y;
+        */
+        
+        $lon = $p->x;
+        $lat = $p->y;
+
+        $con = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        
+        if( abs( $lat ) <= .0000001 ) {
+            $x = $this->x0 + $this->a * $con;
+            $y = $this->y0 - $this->a * $this->ml0;
+        } else {
+            $sinphi = sin( $lat );
+            $cosphi = cos( $lat );
+            
+            $ml = Proj4php::$common->mlfn( $this->e0, $this->e1, $this->e2, $this->e3, $lat );
+            $ms = Proj4php::$common->msfnz( $this->e, $sinphi, $cosphi );
+            
+            $x = $this->x0 + $this->a * $ms * sin( $sinphi ) / $sinphi;
+            $y = $this->y0 + $this->a * ($ml - $this->ml0 + $ms * (1.0 - cos( $sinphi )) / $sinphi);
+        }
+
+        $p->x = $x;
+        $p->y = $y;
+        
+        return $p;
+    }
+
+    /* Inverse equations
+      ----------------- */
+    public function inverse( $p ) {
+        
+        /*
+        $sin_phi;
+        $cos_phi; // sin and cos values
+        $al;     // temporary values
+        $b;     // temporary values
+        $c;     // temporary values
+        $con;
+        $ml;   // cone constant, small m
+        $iflg;    // error flag	
+        $lon;
+        $lat;
+        */
+        
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+        $al = $this->ml0 + $p->y / $this->a;
+        $iflg = 0;
+
+        if( abs( $al ) <= .0000001 ) {
+            $lon = $p->x / $this->a + $this->long0;
+            $lat = 0.0;
+        } else {
+            $b = $al * $al + ($p->x / $this->a) * ($p->x / $this->a);
+            $iflg = phi4z( $this->es, $this->e0, $this->e1, $this->e2, $this->e3, $this->al, $b, $c, $lat );
+            if( $iflg != 1 )
+                return($iflg);
+            $lon = Proj4php::$common->adjust_lon( (Proj4php::$common->asinz( $p->x * $c / $this->a ) / sin( $lat )) + $this->long0 );
+        }
+
+        $p->x = $lon;
+        $p->y = $lat;
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['poly'] = new Proj4phpProjPoly();
 \ No newline at end of file
@@ -0,0 +1,139 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                  		SINUSOIDAL
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Sinusoidal projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  D. Steinwand, EROS      May, 1991
+
+  This function was adapted from the Sinusoidal projection code (FORTRAN) in the
+  General Cartographic Transformation Package software which is available from
+  the U.S. Geological Survey National Mapping Division.
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  "Software Documentation for GCTP General Cartographic Transformation
+  Package", U.S. Geological Survey National Mapping Division, May 1982.
+ * ***************************************************************************** */
+
+class Proj4phpProjSinu {
+    
+    /* Initialize the Sinusoidal projection
+      ------------------------------------ */
+    public function init() {
+        /* Place parameters in static storage for common use
+          ------------------------------------------------- */
+        #$this->R = 6370997.0; //Radius of earth
+
+        if( !$this->sphere ) {
+            $this->en = Proj4php::$common->pj_enfn( $this->es );
+        } else {
+            $this->n = 1.;
+            $this->m = 0.;
+            $this->es = 0;
+            $this->C_y = sqrt( ($this->m + 1.) / $this->n );
+            $this->C_x = $this->C_y / ($this->m + 1.);
+        }
+    }
+
+    /* Sinusoidal forward equations--mapping lat,long to x,y
+      ----------------------------------------------------- */
+    public function forward( $p ) {
+
+        #$x,y,delta_lon;
+        $lon = $p->x;
+        $lat = $p->y;
+
+        /* Forward equations
+          ----------------- */
+        $lon = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        
+        if( isset($this->sphere) ) {
+            if( !$this->m ) {
+                $lat = $this->n != 1. ? asin( $this->n * sin( $lat ) ) : $lat;
+            } else {
+                $k = $this->n * sin( $lat );
+                for( $i = Proj4php::$common->MAX_ITER; $i; --$i ) {
+                    $V = ($this->m * $lat + sin( $lat ) - $k) / ($this->m + cos( $lat ));
+                    $lat -= $V;
+                    if( abs( $V ) < Proj4php::$common->EPSLN )
+                        break;
+                }
+            }
+            $x = $this->a * $this->C_x * $lon * ($this->m + cos( $lat ));
+            $y = $this->a * $this->C_y * $lat;
+        } else {
+
+            $s = sin( $lat );
+            $c = cos( $lat );
+            $y = $this->a * Proj4php::$common->pj_mlfn( $lat, $s, $c, $this->en );
+            $x = $this->a * $lon * $c / sqrt( 1. - $this->es * $s * $s );
+        }
+
+        $p->x = $x;
+        $p->y = $y;
+
+        return $p;
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function inverse( $p ) {
+        #$lat;
+        #$temp;
+        #$lon;
+
+        /* Inverse equations
+          ----------------- */
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+        $lat = $p->y / $this->a;
+
+        if( isset($this->sphere) ) {
+
+            $p->y /= $this->C_y;
+            $lat = $this->m ? asin( ($this->m * $p->y + sin( $p->y )) / $this->n ) : ( $this->n != 1. ? asin( sin( $p->y ) / $this->n ) : $p->y );
+            $lon = $p->x / ($this->C_x * ($this->m + cos( $p->y )));
+        }
+        else {
+            $lat = Proj4php::$common->pj_inv_mlfn( $p->y / $this->a, $this->es, $this->en );
+            $s = abs( $lat );
+            
+            if( $s < Proj4php::$common->HALF_PI ) {
+                $s = sin( $lat );
+                $temp = $this->long0 + $p->x * sqrt( 1. - $this->es * $s * $s ) / ($this->a * cos( $lat ));
+                //temp = $this->long0 + $p->x / ($this->a * cos($lat));
+                $lon = Proj4php::$common->adjust_lon( $temp );
+            } else if( ($s - Proj4php::$common->EPSLN) < Proj4php::$common->HALF_PI ) {
+                $lon = $this->long0;
+            }
+        }
+        
+        $p->x = $lon;
+        $p->y = $lat;
+
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['sinu'] = new Proj4phpProjSinu();
 \ No newline at end of file
@@ -0,0 +1,135 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                       SWISS OBLIQUE MERCATOR
+
+  PURPOSE:	Swiss projection.
+  WARNING:  X and Y are inverted (weird) in the swiss coordinate system. Not
+  here, since we want X to be horizontal and Y vertical.
+
+  ALGORITHM REFERENCES
+  1. "Formules et constantes pour le Calcul pour la
+  projection cylindrique conforme à axe oblique et pour la transformation entre
+  des systèmes de référence".
+  http://www.swisstopo.admin.ch/internet/swisstopo/fr/home/topics/survey/sys/refsys/switzerland.parsysrelated1.31216.downloadList.77004.DownloadFile.tmp/swissprojectionfr.pdf
+
+*******************************************************************************/
+
+class Proj4phpProjSomerc {
+
+    /**
+     * 
+     */
+    public function init() {
+        $phy0 = $this->lat0;
+        $this->lambda0 = $this->long0;
+        $sinPhy0 = sin( $phy0 );
+        $semiMajorAxis = $this->a;
+        $invF = $this->rf;
+        $flattening = 1 / $invF;
+        $e2 = 2 * $flattening - pow( $flattening, 2 );
+        $e = $this->e = sqrt( $e2 );
+        $this->R = $this->k0 * $semiMajorAxis * sqrt( 1 - $e2 ) / (1 - $e2 * pow( $sinPhy0, 2.0 ));
+        $this->alpha = sqrt( 1 + $e2 / (1 - $e2) * pow( cos( $phy0 ), 4.0 ) );
+        $this->b0 = asin( $sinPhy0 / $this->alpha );
+        $this->K = log( tan( Proj4php::$common->PI / 4.0 + $this->b0 / 2.0 ) )
+                  - $this->alpha
+                  * log( tan( Proj4php::$common->PI / 4.0 + $phy0 / 2.0 ) )
+                  + $this->alpha
+                  * $e / 2
+                  * log( (1 + $e * $sinPhy0)
+                            / (1 - $e * $sinPhy0) );
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function forward( $p ) {
+        $Sa1 = log( tan( Proj4php::$common->PI / 4.0 - $p->y / 2.0 ) );
+        $Sa2 = $this->e / 2.0
+                  * log( (1 + $this->e * sin( $p->y ))
+                            / (1 - $this->e * sin( $p->y )) );
+        $S = -$this->alpha * ($Sa1 + $Sa2) + $this->K;
+
+        // spheric latitude
+        $b = 2.0 * (atan( exp( $S ) ) - proj4phpCommon::PI / 4.0);
+
+        // spheric longitude
+        $I = $this->alpha * ($p->x - $this->lambda0);
+
+        // psoeudo equatorial rotation
+        $rotI = atan( sin( $I )
+                  / (sin( $this->b0 ) * tan( $b ) +
+                  cos( $this->b0 ) * cos( $I )) );
+
+        $rotB = asin( cos( $this->b0 ) * sin( $b ) -
+                  sin( $this->b0 ) * cos( $b ) * cos( $I ) );
+
+        $p->y = $this->R / 2.0
+                  * log( (1 + sin( $rotB )) / (1 - sin( $rotB )) )
+                  + $this->y0;
+        
+        $p->x = $this->R * $rotI + $this->x0;
+        
+        return $p;
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function inverse( $p ) {
+        
+        $Y = $p->x - $this->x0;
+        $X = $p->y - $this->y0;
+
+        $rotI = $Y / $this->R;
+        $rotB = 2 * (atan( exp( $X / $this->R ) ) - Proj4php::$common->PI / 4.0);
+
+        $b = asin( cos( $this->b0 ) * sin( $rotB )
+                  + sin( $this->b0 ) * cos( $rotB ) * cos( $rotI ) );
+        $I = atan( sin( $rotI )
+                  / (cos( $this->b0 ) * cos( $rotI ) - sin( $this->b0 )
+                  * tan( $rotB )) );
+
+        $lambda = $this->lambda0 + $I / $this->alpha;
+
+        $S = 0.0;
+        $phy = $b;
+        $prevPhy = -1000.0;
+        $iteration = 0;
+        while( abs( $phy - $prevPhy ) > 0.0000001 ) {
+            if( ++$iteration > 20 ) {
+                Proj4php::reportError( "omercFwdInfinity" );
+                return;
+            }
+            //S = log(tan(PI / 4.0 + phy / 2.0));
+            $S = 1.0
+                      / $this->alpha
+                      * (log( tan( Proj4php::$common->PI / 4.0 + $b / 2.0 ) ) - $this->K)
+                      + $this->e
+                      * log( tan( Proj4php::$common->PI / 4.0
+                                          + asin( $this->e * sin( $phy ) )
+                                          / 2.0 ) );
+            $prevPhy = $phy;
+            $phy = 2.0 * atan( exp( $S ) ) - Proj4php::$common->PI / 2.0;
+        }
+
+        $p->x = $lambda;
+        $p->y = $phy;
+        
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['somerc'] = new Proj4phpProjSomerc();
 \ No newline at end of file
@@ -0,0 +1,303 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+
+// Initialize the Stereographic projection
+class Proj4phpProjStere {
+
+    protected $TOL = 1.e-8;
+    protected $NITER = 8;
+    protected $CONV = 1.e-10;
+    protected $S_POLE = 0;
+    protected $N_POLE = 1;
+    protected $OBLIQ = 2;
+    protected $EQUIT = 3;
+
+    /**
+     *
+     * @param type $phit
+     * @param type $sinphi
+     * @param type $eccen
+     * @return type 
+     */
+    public function ssfn_( $phit, $sinphi, $eccen ) {
+        $sinphi *= $eccen;
+        return (tan( .5 * (Proj4php::$common->HALF_PI + $phit) ) * pow( (1. - $sinphi) / (1. + $sinphi), .5 * $eccen ));
+    }
+    
+    /**
+     * 
+     */
+    public function init() {
+        $this->phits = $this->lat_ts ? $this->lat_ts : Proj4php::$common->HALF_PI;
+        $t = abs( $this->lat0 );
+        if( (abs( $t ) - Proj4php::$common->HALF_PI) < Proj4php::$common->EPSLN ) {
+            $this->mode = $this->lat0 < 0. ? $this->S_POLE : $this->N_POLE;
+        } else {
+            $this->mode = $t > Proj4php::$common->EPSLN ? $this->OBLIQ : $this->EQUIT;
+        }
+        $this->phits = abs( $this->phits );
+        if( $this->es ) {
+            #$X;
+
+            switch( $this->mode ) {
+                case $this->N_POLE:
+                case $this->S_POLE:
+                    if( abs( $this->phits - Proj4php::$common->HALF_PI ) < Proj4php::$common->EPSLN ) {
+                        $this->akm1 = 2. * $this->k0 / sqrt( pow( 1 + $this->e, 1 + $this->e ) * pow( 1 - $this->e, 1 - $this->e ) );
+                    } else {
+                        $t = sin( $this->phits );
+                        $this->akm1 = cos( $this->phits ) / Proj4php::$common->tsfnz( $this->e, $this->phits, $t );
+                        $t *= $this->e;
+                        $this->akm1 /= sqrt( 1. - $t * $t );
+                    }
+                    break;
+                case $this->EQUIT:
+                    $this->akm1 = 2. * $this->k0;
+                    break;
+                case $this->OBLIQ:
+                    $t = sin( $this->lat0 );
+                    $X = 2. * atan( $this->ssfn_( $this->lat0, $t, $this->e ) ) - Proj4php::$common->HALF_PI;
+                    $t *= $this->e;
+                    $this->akm1 = 2. * $this->k0 * cos( $this->lat0 ) / sqrt( 1. - $t * $t );
+                    $this->sinX1 = sin( $X );
+                    $this->cosX1 = cos( $X );
+                    break;
+            }
+        } else {
+            switch( $this->mode ) {
+                case $this->OBLIQ:
+                    $this->sinph0 = sin( $this->lat0 );
+                    $this->cosph0 = cos( $this->lat0 );
+                case $this->EQUIT:
+                    $this->akm1 = 2. * $this->k0;
+                    break;
+                case $this->S_POLE:
+                case $this->N_POLE:
+                    $this->akm1 = abs( $this->phits - Proj4php::$common->HALF_PI ) >= Proj4php::$common->EPSLN ?
+                              cos( $this->phits ) / tan( Proj4php::$common->FORTPI - .5 * $this->phits ) :
+                              2. * $this->k0;
+                    break;
+            }
+        }
+    }
+
+    /**
+     * Stereographic forward equations--mapping lat,long to x,y
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function forward( $p ) {
+        
+        $lon = $p->x;
+        $lon = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        $lat = $p->y;
+        #$x;
+        #$y;
+
+        if( $this->sphere ) {
+            /*
+            $sinphi;
+            $cosphi;
+            $coslam;
+            $sinlam;
+            */
+            
+            $sinphi = sin( $lat );
+            $cosphi = cos( $lat );
+            $coslam = cos( $lon );
+            $sinlam = sin( $lon );
+            switch( $this->mode ) {
+                case $this->EQUIT:
+                    $y = 1. + $cosphi * $coslam;
+                    if( y <= Proj4php::$common->EPSLN ) {
+                        Proj4php::reportError("stere:forward:Equit");
+                    }
+                    $y = $this->akm1 / $y;
+                    $x = $y * $cosphi * $sinlam;
+                    $y *= $sinphi;
+                    break;
+                case $this->OBLIQ:
+                    $y = 1. + $this->sinph0 * $sinphi + $this->cosph0 * $cosphi * $coslam;
+                    if( $y <= Proj4php::$common->EPSLN ) {
+                        Proj4php::reportError("stere:forward:Obliq");
+                    }
+                    $y = $this->akm1 / $y;
+                    $x = $y * $cosphi * $sinlam;
+                    $y *= $this->cosph0 * $sinphi - $this->sinph0 * $cosphi * $coslam;
+                    break;
+                case $this->N_POLE:
+                    $coslam = -$coslam;
+                    $lat = -$lat;
+                //Note  no break here so it conitnues through S_POLE
+                case $this->S_POLE:
+                    if( abs( $lat - Proj4php::$common->HALF_PI ) < $this->TOL ) {
+                        Proj4php::reportError("stere:forward:S_POLE");
+                    }
+                    $y = $this->akm1 * tan( Proj4php::$common->FORTPI + .5 * $lat );
+                    $x = $sinlam * $y;
+                    $y *= $coslam;
+                    break;
+            }
+        } else {
+            $coslam = cos( $lon );
+            $sinlam = sin( $lon );
+            $sinphi = sin( $lat );
+            if( $this->mode == $this->OBLIQ || $this->mode == $this->EQUIT ) {
+                $Xt = 2. * atan( $this->ssfn_( $lat, $sinphi, $this->e ) );
+                $sinX = sin( $Xt - Proj4php::$common->HALF_PI );
+                $cosX = cos( $Xt );
+            }
+            switch( $this->mode ) {
+                case $this->OBLIQ:
+                    $A = $this->akm1 / ($this->cosX1 * (1. + $this->sinX1 * $sinX + $this->cosX1 * $cosX * $coslam));
+                    $y = $A * ($this->cosX1 * $sinX - $this->sinX1 * $cosX * $coslam);
+                    $x = $A * $cosX;
+                    break;
+                case $this->EQUIT:
+                    $A = 2. * $this->akm1 / (1. + $cosX * $coslam);
+                    $y = $A * $sinX;
+                    $x = $A * $cosX;
+                    break;
+                case $this->S_POLE:
+                    $lat = -$lat;
+                    $coslam = - $coslam;
+                    $sinphi = -$sinphi;
+                case $this->N_POLE:
+                    $x = $this->akm1 * Proj4php::$common->tsfnz( $this->e, $lat, $sinphi );
+                    $y = - $x * $coslam;
+                    break;
+            }
+            $x = $x * $sinlam;
+        }
+        
+        $p->x = $x * $this->a + $this->x0;
+        $p->y = $y * $this->a + $this->y0;
+        
+        return $p;
+    }
+
+
+    /**
+     * Stereographic inverse equations--mapping x,y to lat/long
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function inverse( $p ) {
+        $x = ($p->x - $this->x0) / $this->a;   /* descale and de-offset */
+        $y = ($p->y - $this->y0) / $this->a;
+        /*
+        $lon;
+        $lat;
+        $cosphi;
+        $sinphi;
+        $rho;
+        $tp = 0.0;
+        $phi_l = 0.0;
+        $i;
+        */
+        $halfe = 0.0;
+        $pi2 = 0.0;
+
+        if( $this->sphere ) {
+            /*
+            $c;
+            $rh;
+            $sinc;
+            $cosc;
+            */
+            
+            $rh = sqrt( $x * $x + $y * $y );
+            $c = 2. * atan( $rh / $this->akm1 );
+            $sinc = sin( $c );
+            $cosc = cos( $c );
+            $lon = 0.;
+            
+            switch( $this->mode ) {
+                case $this->EQUIT:
+                    if( abs( $rh ) <= Proj4php::$common->EPSLN ) {
+                        $lat = 0.;
+                    } else {
+                        $lat = asin( $y * $sinc / $rh );
+                    }
+                    if( $cosc != 0. || $x != 0. )
+                        $lon = atan2( $x * $sinc, $cosc * $rh );
+                    break;
+                case $this->OBLIQ:
+                    if( abs( $rh ) <= Proj4php::$common->EPSLN ) {
+                        $lat = $this->phi0;
+                    } else {
+                        $lat = asin( $cosc * $this->sinph0 + $y * $sinc * $this->cosph0 / $rh );
+                    }
+                    $c = $cosc - $this->sinph0 * sin( $lat );
+                    if( $c != 0. || $x != 0. ) {
+                        $lon = atan2( $x * $sinc * $this->cosph0, $c * $rh );
+                    }
+                    break;
+                case $this->N_POLE:
+                    $y = -$y;
+                case $this->S_POLE:
+                    if( abs( $rh ) <= Proj4php::$common->EPSLN ) {
+                        $lat = $this->phi0;
+                    } else {
+                        $lat = asin( $this->mode == $this->S_POLE ? -$cosc : $cosc  );
+                    }
+                    $lon = ($x == 0. && $y == 0.) ? 0. : atan2( $x, $y );
+                    break;
+            }
+            $p->x = Proj4php::$common->adjust_lon( $lon + $this->long0 );
+            $p->y = $lat;
+        } else {
+            $rho = sqrt( $x * $x + $y * $y );
+            switch( $this->mode ) {
+                case $this->OBLIQ:
+                case $this->EQUIT:
+                    $tp = 2. * atan2( $rho * $this->cosX1, $this->akm1 );
+                    $cosphi = cos( $tp );
+                    $sinphi = sin( $tp );
+                    if( $rho == 0.0 ) {
+                        $phi_l = asin( $cosphi * $this->sinX1 );
+                    } else {
+                        $phi_l = asin( $cosphi * $this->sinX1 + ($y * $sinphi * $this->cosX1 / $rho) );
+                    }
+
+                    $tp = tan( .5 * (Proj4php::$common->HALF_PI + $phi_l) );
+                    $x *= $sinphi;
+                    $y = $rho * $this->cosX1 * $cosphi - $y * $this->sinX1 * $sinphi;
+                    $pi2 = Proj4php::$common->HALF_PI;
+                    $halfe = .5 * $this->e;
+                    break;
+                case $this->N_POLE:
+                    $y = -$y;
+                case $this->S_POLE:
+                    $tp = - $rho / $this->akm1;
+                    $phi_l = Proj4php::$common->HALF_PI - 2. * atan( $tp );
+                    $pi2 = -Proj4php::$common->HALF_PI;
+                    $halfe = -.5 * $this->e;
+                    break;
+            }
+            for( $i = $this->NITER; $i--; $phi_l = $lat ) { //check this
+                $sinphi = $this->e * sin( $phi_l );
+                $lat = 2. * atan( $tp * pow( (1. + $sinphi) / (1. - $sinphi), $halfe ) ) - $pi2;
+                if( abs( phi_l - lat ) < $this->CONV ) {
+                    if( $this->mode == $this->S_POLE )
+                        $lat = -$lat;
+                    $lon = ($x == 0. && $y == 0.) ? 0. : atan2( $x, $y );
+                    $p->x = Proj4php::$common->adjust_lon( $lon + $this->long0 );
+                    $p->y = $lat;
+                    return $p;
+                }
+            }
+        }
+    }
+
+}
+
+Proj4php::$proj['stere'] = new Proj4phpProjStere();
 \ No newline at end of file
@@ -0,0 +1,91 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+class Proj4phpProjSterea {
+
+    public $dependsOn = 'gauss';
+    
+    /**
+     *
+     * @return void 
+     */
+    public function init() {
+        
+        if( !$this->rc ) {
+            Proj4php::reportError( "sterea:init:E_ERROR_0" );
+            return;
+        }
+        
+        $this->sinc0 = sin( $this->phic0 );
+        $this->cosc0 = cos( $this->phic0 );
+        $this->R2 = 2.0 * $this->rc;
+        
+        if( !$this->title )
+            $this->title = "Oblique Stereographic Alternative";
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function forward( $p ) {
+        
+        $p->x = Proj4php::$common->adjust_lon( $p->x - $this->long0 ); /* adjust del longitude */
+        $p = Proj4php::$proj['gauss']->forward( $p );
+        $sinc = sin( $p->y );
+        $cosc = cos( $p->y );
+        $cosl = cos( $p->x );
+        $k = $this->k0 * $this->R2 / (1.0 + $this->sinc0 * $sinc + $this->cosc0 * $cosc * $cosl);
+        
+        $p->x = $k * $cosc * sin( $p->x );
+        $p->y = $k * ($this->cosc0 * sinc - $this->sinc0 * $cosc * $cosl);
+        
+        $p->x = $this->a * $p->x + $this->x0;
+        $p->y = $this->a * $p->y + $this->y0;
+        
+        return $p;
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function inverse( $p ) {
+        
+        #$lon;
+        #$lat;
+        $p->x = ($p->x - $this->x0) / $this->a; /* descale and de-offset */
+        $p->y = ($p->y - $this->y0) / $this->a;
+
+        $p->x /= $this->k0;
+        $p->y /= $this->k0;
+        
+        if( ($rho = sqrt( $p->x * $p->x + $p->y * $p->y ) ) ) {
+            $c = 2.0 * atan2( $rho, $this->R2 );
+            $sinc = sin( $c );
+            $cosc = cos( $c );
+            $lat = asin( $cosc * $this->sinc0 + $p->y * $sinc * $this->cosc0 / $rho );
+            $lon = atan2( $p->x * $sinc, $rho * $this->cosc0 * $cosc - $p->y * $this->sinc0 * $sinc );
+        } else {
+            $lat = $this->phic0;
+            $lon = 0.;
+        }
+
+        $p->x = $lon;
+        $p->y = $lat;
+        $p = Proj4php::$proj['gauss']->inverse( $p );
+        $p->x = Proj4php::$common->adjust_lon( $p->x + $this->long0 ); /* adjust longitude to CM */
+        
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['sterea'] = new Proj4phpProjSterea();
@@ -0,0 +1,166 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                            TRANSVERSE MERCATOR
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Transverse Mercator projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+  Printing Office, Washington D.C., 1989.
+*******************************************************************************/
+
+/**
+  Initialize Transverse Mercator projection
+ */
+class Proj4phpProjTmerc {
+    
+    private $e0, $e1, $e2, $e3, $ml0;
+    
+    /**
+     * 
+     */
+    public function init() {
+        
+        $this->e0 = Proj4php::$common->e0fn( $this->es );
+        $this->e1 = Proj4php::$common->e1fn( $this->es );
+        $this->e2 = Proj4php::$common->e2fn( $this->es );
+        $this->e3 = Proj4php::$common->e3fn( $this->es );
+        $this->ml0 = $this->a * Proj4php::$common->mlfn( $this->e0, $this->e1, $this->e2, $this->e3, $this->lat0 );
+    }
+
+    /**
+      Transverse Mercator Forward  - long/lat to x/y
+      long/lat in radians
+     */
+    public function forward( $p ) {
+        
+        $lon = $p->x;
+        $lat = $p->y;
+
+        $delta_lon = Proj4php::$common->adjust_lon( $lon - $this->long0 ); // Delta longitude
+        #$con = 0;    // cone constant
+        #$x = 0;
+        #$y = 0;
+        $sin_phi = sin( $lat );
+        $cos_phi = cos( $lat );
+
+        if( isset($this->sphere) && $this->sphere === true ) { /* spherical form */
+            $b = $cos_phi * sin( $delta_lon );
+            if( (abs( abs( $b ) - 1.0 )) < .0000000001 ) {
+                Proj4php::reportError( "tmerc:forward: Point projects into infinity" );
+                return(93);
+            } else {
+                $x = .5 * $this->a * $this->k0 * log( (1.0 + $b) / (1.0 - $b) );
+                $con = acos( $cos_phi * cos( $delta_lon ) / sqrt( 1.0 - $b * $b ) );
+                if( $lat < 0 )
+                    $con = - $con;
+                $y = $this->a * $this->k0 * ($con - $this->lat0);
+            }
+        } else {
+            $al = $cos_phi * $delta_lon;
+            $als = pow( $al, 2 );
+            $c = $this->ep2 * pow( $cos_phi, 2 );
+            $tq = tan( $lat );
+            $t = pow( $tq, 2 );
+            $con = 1.0 - $this->es * pow( $sin_phi, 2 );
+            $n = $this->a / sqrt( $con );
+            
+            $ml = $this->a * Proj4php::$common->mlfn( $this->e0, $this->e1, $this->e2, $this->e3, $lat );
+
+            $x = $this->k0 * $n * $al * (1.0 + $als / 6.0 * (1.0 - $t + $c + $als / 20.0 * (5.0 - 18.0 * $t + pow( $t, 2 ) + 72.0 * $c - 58.0 * $this->ep2))) + $this->x0;
+            $y = $this->k0 * ($ml - $this->ml0 + $n * $tq * ($als * (0.5 + $als / 24.0 * (5.0 - $t + 9.0 * $c + 4.0 * pow( $c, 2 ) + $als / 30.0 * (61.0 - 58.0 * $t + pow( $t, 2 ) + 600.0 * $c - 330.0 * $this->ep2))))) + $this->y0;
+        }
+        
+        $p->x = $x;
+        $p->y = $y;
+        
+        return $p;
+    }
+
+    /**
+      Transverse Mercator Inverse  -  x/y to long/lat
+     */
+    public function inverse( $p ) {
+        
+        #$phi;  /* temporary angles       */
+        #$delta_phi; /* difference between longitudes    */
+        $max_iter = 6;      /* maximun number of iterations */
+
+        if( isset($this->sphere) && $this->sphere === true ) { /* spherical form */
+            $f = exp( $p->x / ($this->a * $this->k0) );
+            $g = .5 * ($f - 1 / $f);
+            $temp = $this->lat0 + $p->y / ($this->a * $this->k0);
+            $h = cos( $temp );
+            $con = sqrt( (1.0 - $h * $h) / (1.0 + $g * $g) );
+            $lat = Proj4php::$common->asinz( $con );
+            if( $temp < 0 )
+                $lat = -$lat;
+            if( ($g == 0) && ($h == 0) ) {
+                $lon = $this->long0;
+            } else {
+                $lon = Proj4php::$common->adjust_lon( atan2( $g, $h ) + $this->long0 );
+            }
+        } else {    // ellipsoidal form
+            $x = $p->x - $this->x0;
+            $y = $p->y - $this->y0;
+
+            $con = ($this->ml0 + $y / $this->k0) / $this->a;
+            $phi = $con;
+            
+            for( $i = 0; true; $i++ ) {
+                $delta_phi = (($con + $this->e1 * sin( 2.0 * $phi ) - $this->e2 * sin( 4.0 * $phi ) + $this->e3 * sin( 6.0 * $phi )) / $this->e0) - $phi;
+                $phi += $delta_phi;
+                if( abs( $delta_phi ) <= Proj4php::$common->EPSLN )
+                    break;
+                if( $i >= $max_iter ) {
+                    Proj4php::reportError( "tmerc:inverse: Latitude failed to converge" );
+                    return(95);
+                }
+            } // for()
+            if( abs( $phi ) < Proj4php::$common->HALF_PI ) {
+                // sincos(phi, &sin_phi, &cos_phi);
+                $sin_phi = sin( $phi );
+                $cos_phi = cos( $phi );
+                $tan_phi = tan( $phi );
+                $c = $this->ep2 * pow( $cos_phi, 2 );
+                $cs = pow( $c, 2 );
+                $t = pow( $tan_phi, 2 );
+                $ts = pow( $t, 2 );
+                $con = 1.0 - $this->es * pow( $sin_phi, 2 );
+                $n = $this->a / sqrt( $con );
+                $r = $n * (1.0 - $this->es) / $con;
+                $d = $x / ($n * $this->k0);
+                $ds = pow( $d, 2 );
+                $lat = $phi - ($n * $tan_phi * $ds / $r) * (0.5 - $ds / 24.0 * (5.0 + 3.0 * $t + 10.0 * $c - 4.0 * $cs - 9.0 * $this->ep2 - $ds / 30.0 * (61.0 + 90.0 * $t + 298.0 * $c + 45.0 * $ts - 252.0 * $this->ep2 - 3.0 * $cs)));
+                $lon = Proj4php::$common->adjust_lon( $this->long0 + ($d * (1.0 - $ds / 6.0 * (1.0 + 2.0 * $t + $c - $ds / 20.0 * (5.0 - 2.0 * $c + 28.0 * $t - 3.0 * $cs + 8.0 * $this->ep2 + 24.0 * $ts))) / $cos_phi) );
+            } else {
+                $lat = Proj4php::$common->HALF_PI * Proj4php::$common->sign( $y );
+                $lon = $this->long0;
+            }
+        }
+        
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['tmerc'] = new Proj4phpProjTmerc();
 \ No newline at end of file
@@ -0,0 +1,182 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                            TRANSVERSE MERCATOR
+
+  PURPOSE:	Transforms input longitude and latitude to Easting and
+  Northing for the Transverse Mercator projection.  The
+  longitude and latitude must be in radians.  The Easting
+  and Northing values will be returned in meters.
+
+  ALGORITHM REFERENCES
+
+  1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",
+  U.S. Geological Survey Professional Paper 1453 , United State Government
+  Printing Office, Washington D.C., 1989.
+*******************************************************************************/
+
+/**
+  Initialize Transverse Mercator projection
+ */
+class Proj4phpProjUtm{
+
+    //public $dependsOn = 'tmerc';
+    
+    public $utmSouth = false; // UTM north/south
+    private $e0, $e1, $e2, $e3, $ml0;
+
+    /**
+     *
+     * @return void
+     */
+    public function init() {
+
+        if( !isset($this->zone) ) {
+            Proj4php::reportError( "utm:init: zone must be specified for UTM" );
+            return;
+        }
+
+        $this->lat0 = 0.0;
+        $this->long0 = ((6 * abs( $this->zone )) - 183) * Proj4php::$common->D2R;
+        $this->x0 = 500000.0;
+        $this->y0 = $this->utmSouth ? 10000000.0 : 0.0;
+        $this->k0 = 0.9996;
+
+        $this->e0 = Proj4php::$common->e0fn( $this->es );
+        $this->e1 = Proj4php::$common->e1fn( $this->es );
+        $this->e2 = Proj4php::$common->e2fn( $this->es );
+        $this->e3 = Proj4php::$common->e3fn( $this->es );
+        $this->ml0 = $this->a * Proj4php::$common->mlfn( $this->e0, $this->e1, $this->e2, $this->e3, $this->lat0 );
+    }
+
+    /**
+      Transverse Mercator Forward  - long/lat to x/y
+      long/lat in radians
+     */
+
+    public function forward( $p ) {
+
+        $lon = $p->x;
+        $lat = $p->y;
+
+        $delta_lon = Proj4php::$common->adjust_lon( $lon - $this->long0 ); // Delta longitude
+        #$con = 0;    // cone constant
+        #$x = 0;
+        #$y = 0;
+        $sin_phi = sin( $lat );
+        $cos_phi = cos( $lat );
+
+        if( isset($this->sphere) && $this->sphere === true ) { /* spherical form */
+            $b = $cos_phi * sin( $delta_lon );
+            if( (abs( abs( $b ) - 1.0 )) < .0000000001 ) {
+                Proj4php::reportError( "tmerc:forward: Point projects into infinity" );
+                return(93);
+            } else {
+                $x = .5 * $this->a * $this->k0 * log( (1.0 + $b) / (1.0 - $b) );
+                $con = acos( $cos_phi * cos( $delta_lon ) / sqrt( 1.0 - $b * $b ) );
+                if( $lat < 0 )
+                    $con = - $con;
+                $y = $this->a * $this->k0 * ($con - $this->lat0);
+            }
+        } else {
+            $al = $cos_phi * $delta_lon;
+            $als = pow( $al, 2 );
+            $c = $this->ep2 * pow( $cos_phi, 2 );
+            $tq = tan( $lat );
+            $t = pow( $tq, 2 );
+            $con = 1.0 - $this->es * pow( $sin_phi, 2 );
+            $n = $this->a / sqrt( $con );
+
+            $ml = $this->a * Proj4php::$common->mlfn( $this->e0, $this->e1, $this->e2, $this->e3, $lat );
+
+            $x = $this->k0 * $n * $al * (1.0 + $als / 6.0 * (1.0 - $t + $c + $als / 20.0 * (5.0 - 18.0 * $t + pow( $t, 2 ) + 72.0 * $c - 58.0 * $this->ep2))) + $this->x0;
+            $y = $this->k0 * ($ml - $this->ml0 + $n * $tq * ($als * (0.5 + $als / 24.0 * (5.0 - $t + 9.0 * $c + 4.0 * pow( $c, 2 ) + $als / 30.0 * (61.0 - 58.0 * $t + pow( $t, 2 ) + 600.0 * $c - 330.0 * $this->ep2))))) + $this->y0;
+        }
+
+        $p->x = $x;
+        $p->y = $y;
+
+        return $p;
+    }
+
+    /**
+      Transverse Mercator Inverse  -  x/y to long/lat
+     */
+    public function inverse( $p ) {
+
+        #$phi;  /* temporary angles       */
+        #$delta_phi; /* difference between longitudes    */
+        $max_iter = 6;      /* maximun number of iterations */
+        if( isset($this->sphere) && $this->sphere === true ) { /* spherical form */
+            $f = exp( $p->x / ($this->a * $this->k0) );
+            $g = .5 * ($f - 1 / $f);
+            $temp = $this->lat0 + $p->y / ($this->a * $this->k0);
+            $h = cos( $temp );
+            $con = sqrt( (1.0 - $h * $h) / (1.0 + $g * $g) );
+            $lat = Proj4php::$common->asinz( $con );
+            if( $temp < 0 )
+                $lat = -$lat;
+            if( ($g == 0) && ($h == 0) ) {
+                $lon = $this->long0;
+            } else {
+                $lon = Proj4php::$common->adjust_lon( atan2( $g, $h ) + $this->long0 );
+            }
+        } else {    // ellipsoidal form
+            $x = $p->x - $this->x0;
+            $y = $p->y - $this->y0;
+
+            $con = ($this->ml0 + $y / $this->k0) / $this->a;
+            $phi = $con;
+
+            for( $i = 0; true; $i++ ) {
+                $delta_phi = (($con + $this->e1 * sin( 2.0 * $phi ) - $this->e2 * sin( 4.0 * $phi ) + $this->e3 * sin( 6.0 * $phi )) / $this->e0) - $phi;
+                $phi += $delta_phi;
+                if( abs( $delta_phi ) <= Proj4php::$common->EPSLN )
+                    break;
+                if( $i >= $max_iter ) {
+                    Proj4php::reportError( "tmerc:inverse: Latitude failed to converge" );
+                    return(95);
+                }
+            } // for()
+
+
+            if( abs( $phi ) < Proj4php::$common->HALF_PI ) {
+                // sincos(phi, &sin_phi, &cos_phi);
+                $sin_phi = sin( $phi );
+                $cos_phi = cos( $phi );
+                $tan_phi = tan( $phi );
+                $c = $this->ep2 * pow( $cos_phi, 2 );
+                $cs = pow( $c, 2 );
+                $t = pow( $tan_phi, 2 );
+                $ts = pow( $t, 2 );
+                $con = 1.0 - $this->es * pow( $sin_phi, 2 );
+                $n = $this->a / sqrt( $con );
+                $r = $n * (1.0 - $this->es) / $con;
+                $d = $x / ($n * $this->k0);
+                $ds = pow( $d, 2 );
+                $lat = $phi - ($n * $tan_phi * $ds / $r) * (0.5 - $ds / 24.0 * (5.0 + 3.0 * $t + 10.0 * $c - 4.0 * $cs - 9.0 * $this->ep2 - $ds / 30.0 * (61.0 + 90.0 * $t + 298.0 * $c + 45.0 * $ts - 252.0 * $this->ep2 - 3.0 * $cs)));
+                $lon = Proj4php::$common->adjust_lon( $this->long0 + ($d * (1.0 - $ds / 6.0 * (1.0 + 2.0 * $t + $c - $ds / 20.0 * (5.0 - 2.0 * $c + 28.0 * $t - 3.0 * $cs + 8.0 * $this->ep2 + 24.0 * $ts))) / $cos_phi) );
+            } else {
+                $lat = Proj4php::$common->HALF_PI * Proj4php::$common->sign( $y );
+                $lon = $this->long0;
+            }
+        }
+
+        $p->x = $lon;
+        $p->y = $lat;
+
+        return $p;
+    }
+}
+
+Proj4php::$proj['utm'] = new Proj4phpProjUtm();
 \ No newline at end of file
@@ -0,0 +1,167 @@
+<?php
+/**
+ * Author : Julien Moquet
+ * 
+ * Inspired by Proj4php from Mike Adair madairATdmsolutions.ca
+ *                      and Richard Greenwood rich@greenwoodma$p->com 
+ * License: LGPL as per: http://www.gnu.org/copyleft/lesser.html 
+ */
+/*******************************************************************************
+  NAME                    VAN DER GRINTEN
+
+  PURPOSE:	Transforms input Easting and Northing to longitude and
+  latitude for the Van der Grinten projection.  The
+  Easting and Northing must be in meters.  The longitude
+  and latitude values will be returned in radians.
+
+  PROGRAMMER              DATE
+  ----------              ----
+  T. Mittan		March, 1993
+
+  This function was adapted from the Van Der Grinten projection code
+  (FORTRAN) in the General Cartographic Transformation Package software
+  which is available from the U.S. Geological Survey National Mapping Division.
+
+  ALGORITHM REFERENCES
+
+  1.  "New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
+  The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
+
+  2.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological
+  Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United
+  State Government Printing Office, Washington D.C., 1987.
+
+  3.  "Software Documentation for GCTP General Cartographic Transformation
+  Package", U.S. Geological Survey National Mapping Division, May 1982.
+ * ***************************************************************************** */
+
+class Proj4phpProjVandg {
+    
+    /* Initialize the Van Der Grinten projection
+      ---------------------------------------- */
+    public function init() {
+        $this->R = 6370997.0; //Radius of earth
+    }
+
+    /**
+     *
+     * @param type $p
+     * @return type 
+     */
+    public function forward( $p ) {
+
+        $lon = $p->x;
+        $lat = $p->y;
+
+        /* Forward equations
+          ----------------- */
+        $dlon = Proj4php::$common->adjust_lon( $lon - $this->long0 );
+        $x;
+        $y;
+
+        if( abs( $lat ) <= Proj4php::$common->EPSLN ) {
+            $x = $this->x0 + $this->R * $dlon;
+            $y = $this->y0;
+        }
+        $theta = Proj4php::$common->asinz( 2.0 * abs( $lat / Proj4php::$common->PI ) );
+        if( (abs( $dlon ) <= Proj4php::$common->EPSLN) || (abs( abs( $lat ) - Proj4php::$common->HALF_PI ) <= Proj4php::$common->EPSLN) ) {
+            $x = $this->x0;
+            if( $lat >= 0 ) {
+                $y = $this->y0 + Proj4php::$common->PI * $this->R * tan( .5 * $theta );
+            } else {
+                $y = $this->y0 + Proj4php::$common->PI * $this->R * - tan( .5 * $theta );
+            }
+            //  return(OK);
+        }
+        $al = .5 * abs( (Proj4php::$common->PI / $dlon) - ($dlon / Proj4php::$common->PI) );
+        $asq = $al * $al;
+        $sinth = sin( $theta );
+        $costh = cos( $theta );
+
+        $g = $costh / ($sinth + $costh - 1.0);
+        $gsq = $g * $g;
+        $m = $g * (2.0 / $sinth - 1.0);
+        $msq = $m * $m;
+        $con = Proj4php::$common->PI * $this->R * ($al * ($g - $msq) + sqrt( $asq * ($g - $sq) * ($g - $msq) - ($msq + $asq) * ($gsq - $msq) )) / ($msq + $asq);
+        if( $dlon < 0 ) {
+            $con = -$con;
+        }
+        $x = $this->x0 + $con;
+        $con = abs( $con / (Proj4php::$common->PI * $this->R) );
+        if( $lat >= 0 ) {
+            $y = $this->y0 + Proj4php::$common->PI * $this->R * sqrt( 1.0 - $con * $con - 2.0 * $al * $con );
+        } else {
+            $y = $this->y0 - Proj4php::$common->PI * $this->R * sqrt( 1.0 - $con * $con - 2.0 * $al * $con );
+        }
+        
+        $p->x = $x;
+        $p->y = $y;
+        
+        return $p;
+    }
+
+    /* Van Der Grinten inverse equations--mapping x,y to lat/long
+      --------------------------------------------------------- */
+
+    public function inverse( $p ) {
+        
+        /*
+        $dlon;
+        $xx;
+        $yy;
+        $xys;
+        $c1;
+        $c2;
+        $c3;
+        $al;
+        $asq;
+        $a1;
+        $m1;
+        $con;
+        $th1;
+        $d;
+        */
+        
+        /* inverse equations
+          ----------------- */
+        $p->x -= $this->x0;
+        $p->y -= $this->y0;
+        $con = Proj4php::$common->PI * $this->R;
+        $xx = $p->x / $con;
+        $yy = $p->y / $con;
+        $xys = $xx * $xx + $yy * $yy;
+        $c1 = -abs( $yy ) * (1.0 + $xys);
+        $c2 = $c1 - 2.0 * $yy * $yy + $xx * $xx;
+        $c3 = -2.0 * $c1 + 1.0 + 2.0 * $yy * $yy + $xys * $xys;
+        $d = $yy * $yy / $c3 + (2.0 * $c2 * $c2 * $c2 / $c3 / $c3 / $c3 - 9.0 * $c1 * $c2 / $c3 / $c3) / 27.0;
+        $a1 = ($c1 - $c2 * $c2 / 3.0 / $c3) / $c3;
+        $m1 = 2.0 * sqrt( -$a1 / 3.0 );
+        $con = ((3.0 * $d) / $a1) / $m1;
+        if( abs( $con ) > 1.0 ) {
+            if( $con >= 0.0 ) {
+                $con = 1.0;
+            } else {
+                $con = -1.0;
+            }
+        }
+        $th1 = acos( $con ) / 3.0;
+        if( $p->$y >= 0 ) {
+            $lat = (-$m1 * cos( $th1 + Proj4php::$common->PI / 3.0 ) - $c2 / 3.0 / $c3) * Proj4php::$common->PI;
+        } else {
+            $lat = -(-m1 * cos( $th1 + Proj4php::$common->PI / 3.0 ) - $c2 / 3.0 / $c3) * Proj4php::$common->PI;
+        }
+
+        if( abs( $xx ) < Proj4php::$common->EPSLN ) {
+            $lon = $this->$long0;
+        }
+        $lon = Proj4php::$common->adjust_lon( $this->long0 + Proj4php::$common->PI * ($xys - 1.0 + sqrt( 1.0 + 2.0 * ($xx * $xx - $yy * $yy) + $xys * $xys )) / 2.0 / $xx );
+
+        $p->x = $lon;
+        $p->y = $lat;
+        
+        return $p;
+    }
+
+}
+
+Proj4php::$proj['vandg'] = new Proj4phpProjVandg();
 \ No newline at end of file
@@ -0,0 +1,87 @@
+<?php
+include_once("../src/proj4php/proj4php.php");
+
+$proj4 = new Proj4php();
+$projL93 = new Proj4phpProj('EPSG:2154',$proj4);
+$projWGS84 = new Proj4phpProj('EPSG:4326',$proj4);
+$projLI = new Proj4phpProj('EPSG:27571',$proj4);
+$projLSud = new Proj4phpProj('EPSG:27563',$proj4);
+$projL72 = new Proj4phpProj('EPSG:31370',$proj4);
+$proj25833 = new Proj4phpProj('EPSG:25833',$proj4);
+$proj31468 = new Proj4phpProj('EPSG:31468',$proj4);
+$proj5514 = new Proj4phpProj('EPSG:5514',$proj4);
+
+// GPS
+// latitude        longitude
+// 48,831938       2,355781
+// 48°49'54.977''  2°21'20.812''
+//
+// L93
+// 652709.401   6859290.946
+//
+// LI
+// 601413.709   1125717.730
+//
+
+$pointSrc = new proj4phpPoint('652709.401','6859290.946');
+echo "Source : ".$pointSrc->toShortString()." in L93 <br>";
+$pointDest = $proj4->transform($projL93,$projWGS84,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in WGS84<br><br>";
+
+$pointSrc = $pointDest;
+echo "Source : ".$pointSrc->toShortString()." in WGS84<br>";
+$pointDest = $proj4->transform($projWGS84,$projLSud,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in Lambert Sud<br><br>";
+
+$pointSrc = $pointDest;
+echo "Source : ".$pointSrc->toShortString()." in Lambert Sud<br>";
+$pointDest = $proj4->transform($projLSud,$projWGS84,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in WGS84<br><br>";
+
+$pointSrc = $pointDest;
+echo "Source : ".$pointSrc->toShortString()." in WGS84<br>";
+$pointDest = $proj4->transform($projWGS84,$projLI,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in LI <br><br>";
+
+$pointSrc = $pointDest;
+echo "Source : ".$pointSrc->toShortString()." in LI<br>";
+$pointDest = $proj4->transform($projLI,$projL93,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in L93<br><br>";
+
+
+
+$pointSrc = new proj4phpPoint('177329.253543','58176.702191');
+echo "Source : ".$pointSrc->toShortString()." in Lambert 1972<br>";
+$pointDest = $proj4->transform($projL72,$projWGS84,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in WGS84<br><br>";
+
+$pointSrc = $pointDest;
+echo "Source : ".$pointSrc->toShortString()." in WGS84<br>";
+$pointDest = $proj4->transform($projWGS84,$projL72,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in Lambert 1972<br><br>";
+
+
+$pointSrc = $pointDest;
+echo "Source : ".$pointSrc->toShortString()." in Lambert 1972<br>";
+$pointDest = $proj4->transform($projL72,$proj25833,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in EPSG:25833<br><br>";
+
+$pointSrc = $pointDest;
+echo "Source : ".$pointSrc->toShortString()." in EPSG:25833<br>";
+$pointDest = $proj4->transform($proj25833,$projWGS84,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in WGS84<br><br>";
+
+$pointSrc = $pointDest;
+echo "Source : ".$pointSrc->toShortString()." in WGS84<br>";
+$pointDest = $proj4->transform($projWGS84,$proj31468,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in EPSG:31468<br><br>";
+
+$pointSrc = new proj4phpPoint('-868208.53', '-1095793.57');
+echo "Source : ".$pointSrc->toShortString()." in S-JTSK<br>";
+$pointDest = $proj4->transform($proj5514,$projWGS84,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in WGS84<br><br>";
+
+$pointSrc = $pointDest;
+echo "Source : ".$pointSrc->toShortString()." in WGS84<br>";
+$pointDest = $proj4->transform($projWGS84,$proj5514,$pointSrc);
+echo "Conversion : ".$pointDest->toShortString()." in S-JTSK<br><br>";
	@@ -51,17 +51,28 @@ if (isset($_FILES['i3GEOuploadshp']['name'])){		@@ -51,17 +51,28 @@ if (isset($_FILES['i3GEOuploadshp']['name'])){
51	$status = move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".shp");	51	$status = move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".shp");
52	if($status != 1)	52	if($status != 1)
53	{echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo SHP";exit;}	53	{echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo SHP";exit;}
		54	+
54	$Arquivo = $_FILES['i3GEOuploadshx']['tmp_name'];	55	$Arquivo = $_FILES['i3GEOuploadshx']['tmp_name'];
55	$status = move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".shx");	56	$status = move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".shx");
56	if($status != 1)	57	if($status != 1)
57	{echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo SHX";exit;}	58	{echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo SHX";exit;}
		59	+
58	$Arquivo = $_FILES['i3GEOuploaddbf']['tmp_name'];	60	$Arquivo = $_FILES['i3GEOuploaddbf']['tmp_name'];
59	$status = move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".dbf");	61	$status = move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".dbf");
60	if($status != 1)	62	if($status != 1)
61	{echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo DBF";exit;}	63	{echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo DBF";exit;}
62	-
63	- if(!file_exists($dir_tmp."/".$nomePrefixo.".shp"))
64	- {echo "<p class='paragrafo' >Ocorreu algum problema no envio do arquivo ".$dir_tmp."/".$nomePrefixo;paraAguarde();exit;}	64	+
		65	+ if($_FILES['i3GEOuploadprj']['tmp_name'] != ""){
		66	+ $Arquivo = $_FILES['i3GEOuploadprj']['tmp_name'];
		67	+ $status = move_uploaded_file($Arquivo,$dir_tmp."/".$nomePrefixo.".prj");
		68	+ if($status != 1){
		69	+ echo "<p class='paragrafo' >Ocorreu um erro no envio do arquivo PRJ";exit;
		70	+ }
		71	+ }
		72	+ if(!file_exists($dir_tmp."/".$nomePrefixo.".shp")){
		73	+ echo "<p class='paragrafo' >Ocorreu algum problema no envio do arquivo ".$dir_tmp."/".$nomePrefixo;paraAguarde();
		74	+ exit;
		75	+ }
65	$arqshp = $dir_tmp."/".$nomePrefixo.".shp";	76	$arqshp = $dir_tmp."/".$nomePrefixo.".shp";
66		77
67	//pega os parametros de conexao	78	//pega os parametros de conexao
	@@ -75,6 +86,9 @@ if (isset($_FILES['i3GEOuploadshp']['name'])){		@@ -75,6 +86,9 @@ if (isset($_FILES['i3GEOuploadshp']['name'])){
75	$mapObj = ms_newMapObjFromString("MAP END");	86	$mapObj = ms_newMapObjFromString("MAP END");
76	$layer = ms_newLayerObj($mapObj);	87	$layer = ms_newLayerObj($mapObj);
77	$layer->set("data",$arqshp);	88	$layer->set("data",$arqshp);
		89	+ if(file_exists($dir_tmp."/".$nomePrefixo.".prj")){
		90	+ $layer->setprojection("AUTO");
		91	+ }
78	$layer->open();	92	$layer->open();
79	$colunasTemp = $layer->getItems();	93	$colunasTemp = $layer->getItems();
80	$colunas = array();	94	$colunas = array();
	@@ -190,8 +204,25 @@ if (isset($_FILES['i3GEOuploadshp']['name'])){		@@ -190,8 +204,25 @@ if (isset($_FILES['i3GEOuploadshp']['name'])){
190	sleep(1);	204	sleep(1);
191	$srid = 4326;	205	$srid = 4326;
192	$escapar = "'";	206	$escapar = "'";
		207	+ $prjMapa = $mapObj->getProjection();
		208	+ $prjTema = $layer->getProjection();
		209	+ if (($prjTema != "") && ($prjMapa != $prjTema))
		210	+ {
		211	+ $projInObj = ms_newprojectionobj($prjTema);
		212	+ $projOutObj = ms_newprojectionobj($prjMapa);
		213	+ }
		214	+ else{
		215	+ $projOutObj = "";
		216	+ $projInObj = "";
		217	+ }
193	for ($i=0; $i<$numshapes;$i++){	218	for ($i=0; $i<$numshapes;$i++){
194	$s = $layer->getShape(new resultObj($i));	219	$s = $layer->getShape(new resultObj($i));
		220	+ //projeta o shape se existir .prj
		221	+ if($_FILES['i3GEOuploadprj']['tmp_name'] != "" && $projInObj != ""){
		222	+ $s->project($projInObj, $projOutObj);
		223	+ //para nao projetar com postgis
		224	+ $_POST["insrid"] = $_POST["outsrid"];
		225	+ }
195	$vs = array();	226	$vs = array();
196		227
197	foreach($colunas as $coluna){	228	foreach($colunas as $coluna){
	@@ -0,0 +1 @@		@@ -0,0 +1 @@
		1	+PROJCS["SAD69 / UTM zone 21S (deprecated)",GEOGCS["SAD69",DATUM["D_South_American_1969",SPHEROID["GRS_1967",6378160,298.247167427]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-57],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["Meter",1]]
@@ -0,0 +1,25 @@		@@ -0,0 +1,25 @@
	1	+# proj4php
	2	+PHP-class for proj4
	3	+This is a PHP-Class for geographic coordinates transformation using proj4 definitions, thanks to a translation from Proj4JS.
	4	+
	5	+## Using
	6	+
	7	+```php
	8	+include("proj4php");
	9	+
	10	+$proj4 = new Proj4php();
	11	+$projL93 = new Proj4phpProj('EPSG:2154',$proj4);
	12	+$projWGS84 = new Proj4phpProj('EPSG:4326',$proj4);
	13	+
	14	+$pointSrc = new proj4phpPoint('652709.401','6859290.946');
	15	+$pointDest = $proj4->transform($projL93,$projWGS84,$pointSrc);
	16	+
	17	+echo "Source : ".$pointSrc->toShortString()." in L93 <br>";
	18	+echo "Conversion : ".$pointDest->toShortString()." in WGS84<br><br>";
	19	+```
	20	+
	21	+There's is also way to define inline projections.
	22	+
	23	+## Developping
	24	+
	25	+Fill free to fork us and submit your changes !
@@ -0,0 +1,35 @@		@@ -0,0 +1,35 @@
	1	+{
	2	+ "name": "proj4php/proj4php",
	3	+ "license": "LGPL-2.1",
	4	+ "type": "library",
	5	+ "description": "A PHP-Class for geographic coordinates transformation using proj4 definitions, thanks to a translation from Proj4JS",
	6	+ "keywords": [
	7	+ "geographic",
	8	+ "coordinates",
	9	+ "proj4",
	10	+ "proj4js"
	11	+ ],
	12	+ "homepage": "https://github.com/proj4php/proj4php",
	13	+ "authors": [
	14	+ {
	15	+ "name": "julien2512",
	16	+ "email": "moquet.julien@gmail.com",
	17	+ "homepage": "https://github.com/julien2512",
	18	+ "role": "Developer"
	19	+ },
	20	+ {
	21	+ "name": "winne27",
	22	+ "homepage": "http://github.com/winne27",
	23	+ "role": "Developer"
	24	+ }
	25	+ ],
	26	+ "require": {
	27	+ "php": ">=5.2.0"
	28	+ },
	29	+ "require-dev": {
	30	+ "phpunit/phpunit": "4.0.*"
	31	+ },
	32	+ "autoload": {
	33	+ "classmap": ["src/"]
	34	+ }
	35	+}
@@ -0,0 +1,165 @@		@@ -0,0 +1,165 @@
	1	+ GNU LESSER GENERAL PUBLIC LICENSE
	2	+ Version 3, 29 June 2007
	3	+
	4	+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
	5	+ Everyone is permitted to copy and distribute verbatim copies
	6	+ of this license document, but changing it is not allowed.
	7	+
	8	+
	9	+ This version of the GNU Lesser General Public License incorporates
	10	+the terms and conditions of version 3 of the GNU General Public
	11	+License, supplemented by the additional permissions listed below.
	12	+
	13	+ 0. Additional Definitions.
	14	+
	15	+ As used herein, "this License" refers to version 3 of the GNU Lesser
	16	+General Public License, and the "GNU GPL" refers to version 3 of the GNU
	17	+General Public License.
	18	+
	19	+ "The Library" refers to a covered work governed by this License,
	20	+other than an Application or a Combined Work as defined below.
	21	+
	22	+ An "Application" is any work that makes use of an interface provided
	23	+by the Library, but which is not otherwise based on the Library.
	24	+Defining a subclass of a class defined by the Library is deemed a mode
	25	+of using an interface provided by the Library.
	26	+
	27	+ A "Combined Work" is a work produced by combining or linking an
	28	+Application with the Library. The particular version of the Library
	29	+with which the Combined Work was made is also called the "Linked
	30	+Version".
	31	+
	32	+ The "Minimal Corresponding Source" for a Combined Work means the
	33	+Corresponding Source for the Combined Work, excluding any source code
	34	+for portions of the Combined Work that, considered in isolation, are
	35	+based on the Application, and not on the Linked Version.
	36	+
	37	+ The "Corresponding Application Code" for a Combined Work means the
	38	+object code and/or source code for the Application, including any data
	39	+and utility programs needed for reproducing the Combined Work from the
	40	+Application, but excluding the System Libraries of the Combined Work.
	41	+
	42	+ 1. Exception to Section 3 of the GNU GPL.
	43	+
	44	+ You may convey a covered work under sections 3 and 4 of this License
	45	+without being bound by section 3 of the GNU GPL.
	46	+
	47	+ 2. Conveying Modified Versions.
	48	+
	49	+ If you modify a copy of the Library, and, in your modifications, a
	50	+facility refers to a function or data to be supplied by an Application
	51	+that uses the facility (other than as an argument passed when the
	52	+facility is invoked), then you may convey a copy of the modified
	53	+version:
	54	+
	55	+ a) under this License, provided that you make a good faith effort to
	56	+ ensure that, in the event an Application does not supply the
	57	+ function or data, the facility still operates, and performs
	58	+ whatever part of its purpose remains meaningful, or
	59	+
	60	+ b) under the GNU GPL, with none of the additional permissions of
	61	+ this License applicable to that copy.
	62	+
	63	+ 3. Object Code Incorporating Material from Library Header Files.
	64	+
	65	+ The object code form of an Application may incorporate material from
	66	+a header file that is part of the Library. You may convey such object
	67	+code under terms of your choice, provided that, if the incorporated
	68	+material is not limited to numerical parameters, data structure
	69	+layouts and accessors, or small macros, inline functions and templates
	70	+(ten or fewer lines in length), you do both of the following:
	71	+
	72	+ a) Give prominent notice with each copy of the object code that the
	73	+ Library is used in it and that the Library and its use are
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	75	+
	76	+ b) Accompany the object code with a copy of the GNU GPL and this license
	77	+ document.
	78	+
	79	+ 4. Combined Works.
	80	+
	81	+ You may convey a Combined Work under terms of your choice that,
	82	+taken together, effectively do not restrict modification of the
	83	+portions of the Library contained in the Combined Work and reverse
	84	+engineering for debugging such modifications, if you also do each of
	85	+the following:
	86	+
	87	+ a) Give prominent notice with each copy of the Combined Work that
	88	+ the Library is used in it and that the Library and its use are
	89	+ covered by this License.
	90	+
	91	+ b) Accompany the Combined Work with a copy of the GNU GPL and this license
	92	+ document.
	93	+
	94	+ c) For a Combined Work that displays copyright notices during
	95	+ execution, include the copyright notice for the Library among
	96	+ these notices, as well as a reference directing the user to the
	97	+ copies of the GNU GPL and this license document.
	98	+
	99	+ d) Do one of the following:
	100	+
	101	+ 0) Convey the Minimal Corresponding Source under the terms of this
	102	+ License, and the Corresponding Application Code in a form
	103	+ suitable for, and under terms that permit, the user to
	104	+ recombine or relink the Application with a modified version of
	105	+ the Linked Version to produce a modified Combined Work, in the
	106	+ manner specified by section 6 of the GNU GPL for conveying
	107	+ Corresponding Source.
	108	+
	109	+ 1) Use a suitable shared library mechanism for linking with the
	110	+ Library. A suitable mechanism is one that (a) uses at run time
	111	+ a copy of the Library already present on the user's computer
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	113	+ of the Library that is interface-compatible with the Linked
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	115	+
	116	+ e) Provide Installation Information, but only if you would otherwise
	117	+ be required to provide such information under section 6 of the
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	119	+ necessary to install and execute a modified version of the
	120	+ Combined Work produced by recombining or relinking the
	121	+ Application with a modified version of the Linked Version. (If
	122	+ you use option 4d0, the Installation Information must accompany
	123	+ the Minimal Corresponding Source and Corresponding Application
	124	+ Code. If you use option 4d1, you must provide the Installation
	125	+ Information in the manner specified by section 6 of the GNU GPL
	126	+ for conveying Corresponding Source.)
	127	+
	128	+ 5. Combined Libraries.
	129	+
	130	+ You may place library facilities that are a work based on the
	131	+Library side by side in a single library together with other library
	132	+facilities that are not Applications and are not covered by this
	133	+License, and convey such a combined library under terms of your
	134	+choice, if you do both of the following:
	135	+
	136	+ a) Accompany the combined library with a copy of the same work based
	137	+ on the Library, uncombined with any other library facilities,
	138	+ conveyed under the terms of this License.
	139	+
	140	+ b) Give prominent notice with the combined library that part of it
	141	+ is a work based on the Library, and explaining where to find the
	142	+ accompanying uncombined form of the same work.
	143	+
	144	+ 6. Revised Versions of the GNU Lesser General Public License.
	145	+
	146	+ The Free Software Foundation may publish revised and/or new versions
	147	+of the GNU Lesser General Public License from time to time. Such new
	148	+versions will be similar in spirit to the present version, but may
	149	+differ in detail to address new problems or concerns.
	150	+
	151	+ Each version is given a distinguishing version number. If the
	152	+Library as you received it specifies that a certain numbered version
	153	+of the GNU Lesser General Public License "or any later version"
	154	+applies to it, you have the option of following the terms and
	155	+conditions either of that published version or of any later version
	156	+published by the Free Software Foundation. If the Library as you
	157	+received it does not specify a version number of the GNU Lesser
	158	+General Public License, you may choose any version of the GNU Lesser
	159	+General Public License ever published by the Free Software Foundation.
	160	+
	161	+ If the Library as you received it specifies that a proxy can decide
	162	+whether future versions of the GNU Lesser General Public License shall
	163	+apply, that proxy's public statement of acceptance of any version is
	164	+permanent authorization for you to choose that version for the
	165	+Library.
	@@ -0,0 +1,104 @@		@@ -0,0 +1,104 @@
		1	+<?php
		2	+
		3	+include_once("proj4php.php");
		4	+
		5	+$error = false;
		6	+
		7	+/**
		8	+ * Geometry-Points
		9	+ */
		10	+if( isset( $_GET['GEOM'] ) ) {
		11	+ list($x, $y) = explode( ' ', $_GET['GEOM'] );
		12	+} else {
		13	+ if( isset( $_GET['x'] ) ) {
		14	+ $x = $_GET['x'];
		15	+ }
		16	+ else
		17	+ $error = true;
		18	+
		19	+ if( isset( $_GET['y'] ) ) {
		20	+ $y = $_GET['y'];
		21	+ }
		22	+ else
		23	+ $error = true;
		24	+}
		25	+
		26	+/**
		27	+ * Source-CRS
		28	+ */
		29	+if( isset( $_GET['SOURCECRS'] ) ) {
		30	+ $srcProjection = str_replace( '::', ':', $_GET['SOURCECRS'] );
		31	+} else if( isset( $_GET['projectionxy'] ) ) {
		32	+ $srcProjection = $_GET['projectionxy'];
		33	+ $srcProjection = str_replace( '::', ':', $srcProjection );
		34	+}
		35	+else
		36	+ $srcProjection = 'EPSG:2154';
		37	+
		38	+/**
		39	+ * Target-CRS
		40	+ */
		41	+if( isset( $_GET['TARGETCRS'] ) ) {
		42	+ $tgtProjection = str_replace( '::', ':', $_GET['TARGETCRS'] );
		43	+} else if( isset( $_GET['projection'] ) ) {
		44	+ $tgtProjection = $_GET['projection'];
		45	+ $tgtProjection = str_replace( '::', ':', $tgtProjection );
		46	+}
		47	+else
		48	+ $tgtProjection = 'EPSG:4326';
		49	+
		50	+/**
		51	+ * Format
		52	+ */
		53	+if( isset( $_GET['format'] ) ) {
		54	+ $format = $_GET['format'];
		55	+ if( !($format == 'xml' \|\| $format == 'json') )
		56	+ $error = true;
		57	+}
		58	+else
		59	+ $format = 'xml';
		60	+
		61	+
		62	+$proj4 = new Proj4php();
		63	+$projsource = new Proj4phpProj( $srcProjection, $proj4 );
		64	+$projdest = new Proj4phpProj( $tgtProjection, $proj4 );
		65	+
		66	+// check the projections
		67	+if( Proj4php::$defs[$srcProjection] == Proj4php::$defs['WGS84'] && $srcProjection != 'EPSG:4326' )
		68	+ $error = true;
		69	+if( Proj4php::$defs[$tgtProjection] == Proj4php::$defs['WGS84'] && $tgtProjection != 'EPSG:4326' )
		70	+ $error = true;
		71	+
		72	+if( $error === true ) {
		73	+ if( $format == 'json' ) {
		74	+ echo "{\"status\":\"error\", \"erreur\": {\"code\": 2, \"message\": \"Wrong parameters.\"} }";
		75	+ exit;
		76	+ } else {
		77	+ echo "<reponse>";
		78	+ echo " <erreur>";
		79	+ echo " <code>2</code>";
		80	+ echo " <message>Wrong parameters</message>";
		81	+ echo " </erreur>";
		82	+ echo "</reponse>";
		83	+ exit;
		84	+ }
		85	+}
		86	+
		87	+$pointSrc = new proj4phpPoint( $x, $y );
		88	+$pointDest = $proj4->transform( $projsource, $projdest, $pointSrc );
		89	+
		90	+$tgtProjection = str_replace( ':', '::', $tgtProjection );
		91	+
		92	+if( $format == 'json' ) {
		93	+ echo "{\"status\" :\"success\", \"point\" : {\"x\":" . $pointDest->x . ", \"y\":" . $pointDest->y . ",\"projection\" :\"" . $tgtProjection . "\"}}";
		94	+ exit;
		95	+} else {
		96	+ header ("Content-Type:text/xml");
		97	+ echo "<reponse>";
		98	+ echo "<point>";
		99	+ echo "<x>" . $pointDest->x . "</x>";
		100	+ echo "<y>" . $pointDest->y . "</y>";
		101	+ echo "<projection>" . $tgtProjection . "</projection>";
		102	+ echo "</point>";
		103	+ echo "</reponse>";
		104	+}
0	\ No newline at end of file	105	\ No newline at end of file
@@ -0,0 +1,2 @@		@@ -0,0 +1,2 @@
	1	+<?php
	2	+Proj4php::$defs["EPSG:102757"] = "+title=NAD 1983 StatePlane Wyoming West Central FIPS 4903 Feet +proj=tmerc +lat_0=40.5 +lon_0=-108.75 +x_0=600000.0 +y_0=0 +k=0.999938 +a=6378137.0 +b=6356752.3141403 +to_meter=0.3048006096012192";
@@ -0,0 +1,3 @@		@@ -0,0 +1,3 @@
	1	+<?php
	2	+Proj4php::$defs["EPSG:4302"] = "+title=Trinidad 1903 EPSG:4302 (7 param datum shift) +proj=longlat +a=6378293.63683822 +b=6356617.979337744 +towgs84=-61.702,284.488,472.052,0,0,0,0";
	3	+
@@ -0,0 +1,6 @@		@@ -0,0 +1,6 @@
	1	+<?php
	2	+// Google Mercator projection
	3	+// Used in combination with GoogleMercator layer type in OpenLayers
	4	+//+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs
	5	+
	6	+Proj4php::$defs["EPSG:900913"]= "+title= Google Mercator EPSG:900913 +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs";
@@ -0,0 +1,11 @@		@@ -0,0 +1,11 @@
	1	+// Google Mercator projection
	2	+// Used in combination with GoogleMercator layer type in OpenLayers
	3	+//+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs
	4	+
	5	+csList.EPSG900913= "\
	6	+ +title= Google Mercator EPSG:900913\
	7	+ +proj=merc +a=6378137 +b=6378137 \
	8	+ +lat_ts=0.0 +lon_0=0.0 \
	9	+ +x_0=0.0 +y_0=0 +k=1.0 \
	10	+ +units=m +nadgrids=@null +no_defs \
	11	+";