ScaleLine.html
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<html>
<head>
<script src='http://maps.google.com/maps?file=api&v=2&key=ABQIAAAA9XNhd8q0UdwNC7YSO4YZghSPUCi5aRYVveCcVYxzezM4iaj_gxQ9t-UajFL70jfcpquH5l1IJ-Zyyw'></script>
<script src="../../lib/OpenLayers.js"></script>
<script type="text/javascript">
var validkey = (window.location.protocol == "file:") ||
(window.location.host == "localhost") ||
(window.location.host == "openlayers.org");
function test_initialize(t) {
t.plan(2);
var control = new OpenLayers.Control.ScaleLine();
t.ok(control instanceof OpenLayers.Control.ScaleLine, "new OpenLayers.Control returns object" );
t.eq(control.displayClass, "olControlScaleLine", "displayClass is correct" );
control.destroy();
}
function test_initwithelem(t) {
t.plan(1);
var control = new OpenLayers.Control.ScaleLine({"div":OpenLayers.Util.getElement('ScaleLine')});
t.ok(true, "If this happens, then we passed. (FF throws an error above otherwise)");
control.destroy();
}
function test_calcDegrees(t) {
t.plan(5);
var control = new OpenLayers.Control.ScaleLine();
t.ok(control instanceof OpenLayers.Control.ScaleLine, "new OpenLayers.Control returns object" );
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS('Test Layer', "http://octo.metacarta.com/cgi-bin/mapserv", {map: '/mapdata/vmap_wms.map', layers: 'basic', format: 'image/jpeg'});
map.addLayer(layer);
map.zoomTo(0);
map.addControl(control);
t.eq(control.div.firstChild.style.visibility, "visible", "top scale is present.");
t.eq(control.div.lastChild.style.visibility, "visible", "bottom scale is present.");
t.eq(control.div.firstChild.innerHTML, "10000 km", "top scale has correct text.");
t.eq(control.div.lastChild.innerHTML, "5000 mi", "bottom scale has correct text.");
map.destroy();
}
function test_calcsOther (t) {
t.plan(5);
var control = new OpenLayers.Control.ScaleLine();
t.ok(control instanceof OpenLayers.Control.ScaleLine, "new OpenLayers.Control returns object" );
var map = new OpenLayers.Map('map');
map.units = "mi";
var layer = new OpenLayers.Layer.WMS('Test Layer', "http://octo.metacarta.com/cgi-bin/mapserv", {map: '/mapdata/vmap_wms.map', layers: 'basic', format: 'image/jpeg'});
map.addLayer(layer);
map.zoomTo(0);
map.addControl(control);
t.eq(control.div.firstChild.style.visibility, "visible", "top scale is present.");
t.eq(control.div.lastChild.style.visibility, "visible", "bottom scale is present.");
t.eq(control.div.firstChild.innerHTML, "100 km", "top scale has correct text.");
t.eq(control.div.lastChild.innerHTML, "100 mi", "bottom scale has correct text.");
map.destroy();
}
function test_calcMeters (t) {
t.plan(5);
// this example is taken from the projected-map.html OpenLayers example
var lat = 900863;
var lon = 235829;
var zoom = 6;
var map = new OpenLayers.Map( 'map' );
var basemap = new OpenLayers.Layer.WMS( "Boston",
"http://boston.freemap.in/cgi-bin/mapserv?",
{
map: '/www/freemap.in/boston/map/gmaps.map',
layers: 'border,water,roads,rapid_transit,buildings',
format: 'png',
transparent: 'off'
},
{
maxExtent: new OpenLayers.Bounds(33861, 717605, 330846, 1019656),
maxResolution: 296985/1024,
projection:"EPSG:2805", // Used in WMS/WFS requests.
units: "m" // Only neccesary for working with scales.
} );
map.addLayer(basemap);
map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
map.addControl(new OpenLayers.Control.LayerSwitcher());
var control = new OpenLayers.Control.ScaleLine();
t.ok( control instanceof OpenLayers.Control.ScaleLine, "new OpenLayers.Control returns object" );
map.addControl(control);
t.eq(control.div.firstChild.style.visibility, "visible", "top scale is present.");
t.eq(control.div.lastChild.style.visibility, "visible", "bottom scale is present.");
t.eq(control.div.firstChild.innerHTML, "200 m", "top scale has correct text.");
t.eq(control.div.lastChild.innerHTML, "1000 ft", "bottom scale has correct text.");
map.destroy();
}
function test_useArguments (t) {
t.plan(5);
var control = new OpenLayers.Control.ScaleLine({topOutUnits: 'dd'} );
t.ok( control instanceof OpenLayers.Control.ScaleLine, "new OpenLayers.Control returns object" );
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS('Test Layer', "http://octo.metacarta.com/cgi-bin/mapserv", {map: '/mapdata/vmap_wms.map', layers: 'basic', format: 'image/jpeg'});
map.addLayer(layer);
map.zoomTo(0);
map.addControl(control);
t.eq(control.div.firstChild.style.visibility, "visible", "top scale is present.");
t.eq(control.div.lastChild.style.visibility, "visible", "bottom scale is present.");
t.eq(control.div.firstChild.innerHTML, "100 dd", "top scale has correct text.");
t.eq(control.div.lastChild.innerHTML, "5000 mi", "bottom scale has correct text.");
map.destroy();
}
function test_respectZoom (t) {
if(validkey) {
t.plan( 4 );
} else {
t.plan( 3 );
}
// ok, switch the units we use for zoomed in values. This will test that we're both
// correctly respecting all specified parameters and that we're switching to the
// "in" units when zoomed in
var control = new OpenLayers.Control.ScaleLine({topOutUnits : "mi", bottomOutUnits: "km", topInUnits: 'ft', bottomInUnits: 'm'});
t.ok( control instanceof OpenLayers.Control.ScaleLine, "new OpenLayers.Control returns object" );
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.WMS('Test Layer', "http://octo.metacarta.com/cgi-bin/mapserv", {map: '/mapdata/vmap_wms.map', layers: 'basic', format: 'image/jpeg'});
map.addLayer(layer);
map.zoomTo(0);
map.addControl(control);
var widthIsOk = true;
for (var i=0; i<map.numZoomLevels && widthIsOk; i++) {
map.zoomTo(i);
var w1 = parseInt(control.eTop.style.width);
var w2 = parseInt(control.eBottom.style.width);
widthIsOk = w1 <= control.maxWidth && w2 <= control.maxWidth;
}
t.ok(widthIsOk, "respects maxWidth at all zoom levels in dd");
widthIsOk = true;
control.maxWidth = 200;
for (var i=0; i<map.numZoomLevels && widthIsOk; i++) {
map.zoomTo(i);
var w1 = parseInt(control.eTop.style.width);
var w2 = parseInt(control.eBottom.style.width);
widthIsOk = w1 <= control.maxWidth && w2 <= control.maxWidth;
}
t.ok(widthIsOk, "respects modified maxWidth at all zoom levels in dd");
if (validkey) {
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.Google('Goog Layer');
var control = new OpenLayers.Control.ScaleLine({topOutUnits : "mi", bottomOutUnits: "km", topInUnits: 'ft', bottomInUnits: 'm'});
map.addLayer(layer);
map.zoomTo(0);
map.addControl(control);
var widthIsOk = true;
for (var i=0; i<map.numZoomLevels && widthIsOk; i++) {
map.zoomTo(i);
var w1 = parseInt(control.eTop.style.width);
var w2 = parseInt(control.eBottom.style.width);
widthIsOk = w1 <= control.maxWidth && w2 <= control.maxWidth;
}
t.ok(widthIsOk, "respects maxWidth at all zoom levels in m");
} else {
t.debug_print("Google tests can't be run from " +
window.location.host);
}
var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.Google('Goog Layer');
map.addLayer(layer);
map.destroy();
}
</script>
</head>
<body>
<a id="ScaleLine" href="">ScaleLine</a> <br />
<div id="map" style="width: 1024px; height: 512px;"/>
</body>
</html>