gml-serialize.html
3 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style type="text/css">
#map {
width: 512px;
height: 350px;
border: 1px solid gray;
}
</style>
<script src="../lib/OpenLayers.js"></script>
<script type="text/javascript">
<!--
var map, drawControl, g;
function serialize(feature) {
feature.attributes = {};
var name = prompt("Name for feature?");
feature.attributes['name'] = name;
s = new XMLSerializer();
var data = g.write(feature.layer.features);
$("gml").value = s.serializeToString(data);
}
function init(){
g = new OpenLayers.Format.GML();
map = new OpenLayers.Map('map');
var wmsLayer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0?", {layers: 'basic'});
var pointLayer = new OpenLayers.Layer.Vector("Point Layer");
pointLayer.onFeatureInsert = serialize;
map.addLayers([wmsLayer, pointLayer]);
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.addControl(new OpenLayers.Control.MousePosition());
drawControls = {
point: new OpenLayers.Control.DrawFeature(pointLayer,
OpenLayers.Handler.Point),
line: new OpenLayers.Control.DrawFeature(pointLayer,
OpenLayers.Handler.Path)
};
for(var key in drawControls) {
map.addControl(drawControls[key]);
}
map.setCenter(new OpenLayers.LonLat(0, 0), 3);
}
function toggleControl(element) {
for(key in drawControls) {
var control = drawControls[key];
if(element.value == key && element.checked) {
control.activate();
} else {
control.deactivate();
}
}
}
// -->
</script>
</head>
<body onload="init()">
<h1>OpenLayers Draw Point Example</h1>
<div style="float:right">
<ul id="controlToggle">
<li>
<input type="radio" name="type" value="none" id="noneToggle"
onclick="toggleControl(this);" checked="checked" />
<label for="noneToggle">navigate</label>
</li>
<li>
<input type="radio" name="type" value="point" id="pointToggle" onclick="toggleControl(this);" />
<label for="pointToggle">draw point</label>
</li>
<li>
<input type="radio" name="type" value="line" id="lineToggle" onclick="toggleControl(this);" />
<label for="lineToggle">draw line</label>
</li>
</ul>
<p>Check the box to draw points. Uncheck to navigate normally.</p>
<textarea id="gml" cols="80" rows="30"></textarea>
</div>
<div id="map"></div>
</body>
</html>