<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<meta name="apple-mobile-web-app-capable" content="yes">
<title>Draw Feature Example</title>
<link rel="stylesheet" href="../theme/default/style.css" type="text/css">
<link rel="stylesheet" href="style.css" type="text/css">
<style type="text/css">
#controlToggle li {
list-style: none;
}
p {
width: 512px;
}
/* avoid pink tiles */
.olImageLoadError {
background-color: transparent !important;
}
</style>
<script src="../lib/OpenLayers.js"></script>
<script type="text/javascript">
var map, drawControls;
function init(){
map = new OpenLayers.Map('map');
var wmsLayer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://vmap0.tiles.osgeo.org/wms/vmap0?", {layers: 'basic'});
var options = {
styleMap: new OpenLayers.StyleMap({
"default": new OpenLayers.Style({
pointRadius: 6, // sized according to type attribute
fillColor: "#0000FF",
strokeColor: "#0000FF",
strokeWidth: 2,
graphicZIndex: 1
}),
"select": new OpenLayers.Style({
pointRadius: 6,
fillColor: "#66ccff",
strokeColor: "#3399ff",
graphicZIndex: 2
}),
"temporary": new OpenLayers.Style({
pointRadius: 6,
fillColor: "#FF00FF",
strokeColor: "#FF00FF",
label: "Test",
graphicZIndex: 2
})
})
};
var pointLayer = new OpenLayers.Layer.Vector("Point Layer",options);
var lineLayer = new OpenLayers.Layer.Vector("Line Layer", options);
var polygonLayer = new OpenLayers.Layer.Vector("Polygon Layer",options);
map.addLayers([wmsLayer, pointLayer, lineLayer, polygonLayer]);
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.addControl(new OpenLayers.Control.MousePosition());
var drawOptions = {
'handlerOptions': {
'style': {
'strokeColor': '#FF0000',
'strokeOpacity': 1,
'strokeWidth': 2,
'fillColor': '#FF0000',
'fillOpacity': 0.5,
'pointRadius': 6
}
}
};
drawControls = {
point: new OpenLayers.Control.DrawFeature(pointLayer,
OpenLayers.Handler.Point, drawOptions),
line: new OpenLayers.Control.DrawFeature(lineLayer,
OpenLayers.Handler.Path, drawOptions),
polygon: new OpenLayers.Control.DrawFeature(polygonLayer,
OpenLayers.Handler.Polygon/*, drawOptions*/)
};
drawControls["point"].featureAdded=(function(feature){
alert("feature added"+ feature );
});
for(var key in drawControls) {
map.addControl(drawControls[key]);
}
map.setCenter(new OpenLayers.LonLat(0, 0), 3);
document.getElementById('noneToggle').checked = true;
}
function toggleControl(element) {
for(key in drawControls) {
var control = drawControls[key];
if(element.value == key && element.checked) {
control.activate();
} else {
control.deactivate();
}
}
}
function allowPan(element) {
var stop = !element.checked;
for(var key in drawControls) {
drawControls[key].handler.stopDown = stop;
drawControls[key].handler.stopUp = stop;
}
}
</script>
</head>
<body onload="init()">
<h1 id="title">OpenLayers Draw Feature Example</h1>
<div id="tags">
point, line, linestring, polygon, digitizing, geometry, draw, drag
</div>
<p id="shortdesc">
Demonstrate on-screen digitizing tools for point, line, and polygon creation.
</p>
<div id="map" class="smallmap"></div>
<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>
<li>
<input type="radio" name="type" value="polygon" id="polygonToggle" onclick="toggleControl(this);" />
<label for="polygonToggle">draw polygon</label>
</li>
<li>
<input type="checkbox" name="allow-pan" value="allow-pan" id="allowPanCheckbox" checked=true onclick="allowPan(this);" />
<label for="allowPanCheckbox">allow pan while drawing</label>
</li>
</ul>
<div id="docs">
<p>With the point drawing control active, click on the map to add a point.</p>
<p>With the line drawing control active, click on the map to add the points that make up your line.
Double-click to finish drawing.</p>
<p>With the polygon drawing control active, click on the map to add the points that make up your
polygon. Double-click to finish drawing.</p>
<p>With any drawing control active, paning the map can still be achieved. Drag the map as
usual for that.</p>
<p>Hold down the shift key while drawing to activate freehand mode. While drawing lines or polygons
in freehand mode, hold the mouse down and a point will be added with every mouse movement.<p>
</div>
</body>
</html>