ef3ad090c1
git-svn-id: http://svn.openlayers.org/trunk/openlayers@5659 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
107 lines
4.2 KiB
HTML
107 lines
4.2 KiB
HTML
<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>Draw Feature Example</title>
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<style type="text/css">
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#map {
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width: 512px;
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height: 512px;
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border: 1px solid gray;
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}
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#controlToggle li {
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list-style: none;
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}
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p {
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width: 512px;
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}
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</style>
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<script src="../lib/OpenLayers.js"></script>
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<script type="text/javascript">
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var map, drawControls;
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OpenLayers.Util.onImageLoadErrorColor = "transparent";
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function init(){
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map = new OpenLayers.Map('map');
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var wmsLayer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
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"http://labs.metacarta.com/wms/vmap0?", {layers: 'basic'});
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var pointLayer = new OpenLayers.Layer.Vector("Point Layer");
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var lineLayer = new OpenLayers.Layer.Vector("Line Layer");
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var polygonLayer = new OpenLayers.Layer.Vector("Polygon Layer");
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map.addLayers([wmsLayer, pointLayer, lineLayer, polygonLayer]);
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map.addControl(new OpenLayers.Control.LayerSwitcher());
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map.addControl(new OpenLayers.Control.MousePosition());
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var options = {handlerOptions: {freehand: true}};
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drawControls = {
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point: new OpenLayers.Control.DrawFeature(pointLayer,
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OpenLayers.Handler.Point),
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line: new OpenLayers.Control.DrawFeature(lineLayer,
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OpenLayers.Handler.Path, options),
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polygon: new OpenLayers.Control.DrawFeature(polygonLayer,
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OpenLayers.Handler.Polygon, options)
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};
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for(var key in drawControls) {
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map.addControl(drawControls[key]);
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}
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map.setCenter(new OpenLayers.LonLat(0, 0), 3);
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document.getElementById('noneToggle').checked = true;
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}
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function toggleControl(element) {
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for(key in drawControls) {
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var control = drawControls[key];
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if(element.value == key && element.checked) {
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control.activate();
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} else {
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control.deactivate();
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}
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}
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}
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</script>
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</head>
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<body onload="init()">
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<h1 id="title">OpenLayers Draw Feature Example</h1>
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<div id="tags"></div>
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<p id="shortdesc">
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Demonstrate on-screen digitizing tools for point, line, and polygon creation.
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</p>
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<div id="map"></div>
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<ul id="controlToggle">
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<li>
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<input type="radio" name="type" value="none" id="noneToggle"
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onclick="toggleControl(this);" checked="checked" />
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<label for="noneToggle">navigate</label>
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</li>
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<li>
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<input type="radio" name="type" value="point" id="pointToggle" onclick="toggleControl(this);" />
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<label for="pointToggle">draw point</label>
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</li>
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<li>
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<input type="radio" name="type" value="line" id="lineToggle" onclick="toggleControl(this);" />
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<label for="lineToggle">draw line</label>
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</li>
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<li>
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<input type="radio" name="type" value="polygon" id="polygonToggle" onclick="toggleControl(this);" />
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<label for="polygonToggle">draw polygon</label>
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</li>
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</ul>
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<div id="docs">
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<p>Feature digitizing is in freehand mode by default. In freehand mode, the mouse is treated as a pen.
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Drawing begins on mouse down, continues with every mouse move, and ends with mouse up.</p>
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<p>To turn freehand mode off, hold down the shift key while digitizing. With freehand mode off, one
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vertex is added with each click and double-clicks finish drawing. Freehand mode can be toggled on and off
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at any time while drawing.</p>
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</div>
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</body>
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</html>
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