139 lines
5.5 KiB
HTML
139 lines
5.5 KiB
HTML
<!DOCTYPE HTML>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
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<meta name="apple-mobile-web-app-capable" content="yes">
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<title>OpenLayers Labeled Features Example</title>
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<link rel="stylesheet" href="../theme/default/style.css" type="text/css">
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<link rel="stylesheet" href="style.css" type="text/css">
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<script src="../lib/OpenLayers.js"></script>
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<script type="text/javascript">
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var map;
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function init(){
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map = new OpenLayers.Map('map');
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var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
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"http://vmap0.tiles.osgeo.org/wms/vmap0", {layers: 'basic'} );
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map.addLayer(layer);
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// allow testing of specific renderers via "?renderer=Canvas", etc
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var renderer = OpenLayers.Util.getParameters(window.location.href).renderer;
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renderer = (renderer) ? [renderer] : OpenLayers.Layer.Vector.prototype.renderers;
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var vectorLayer = new OpenLayers.Layer.Vector("Simple Geometry", {
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styleMap: new OpenLayers.StyleMap({'default':{
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strokeColor: "#00FF00",
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strokeOpacity: 1,
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strokeWidth: 3,
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fillColor: "#FF5500",
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fillOpacity: 0.5,
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pointRadius: 6,
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pointerEvents: "visiblePainted",
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// label with \n linebreaks
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label : "name: ${name}\n\nage: ${age}",
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fontColor: "${favColor}",
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fontSize: "12px",
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fontFamily: "Courier New, monospace",
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fontWeight: "bold",
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labelAlign: "${align}",
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labelXOffset: "${xOffset}",
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labelYOffset: "${yOffset}",
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labelOutlineColor: "white",
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labelOutlineWidth: 3
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}}),
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renderers: renderer
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});
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// create a point feature
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var point = new OpenLayers.Geometry.Point(-111.04, 45.68);
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var pointFeature = new OpenLayers.Feature.Vector(point);
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pointFeature.attributes = {
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name: "toto",
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age: 20,
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favColor: 'red',
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align: "cm"
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};
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// create a polygon feature from a linear ring of points
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var pointList = [];
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for(var p=0; p<6; ++p) {
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var a = p * (2 * Math.PI) / 7;
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var r = Math.random(1) + 1;
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var newPoint = new OpenLayers.Geometry.Point(point.x + 5 + (r * Math.cos(a)),
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point.y + 5 + (r * Math.sin(a)));
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pointList.push(newPoint);
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}
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pointList.push(pointList[0]);
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var linearRing = new OpenLayers.Geometry.LinearRing(pointList);
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var polygonFeature = new OpenLayers.Feature.Vector(
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new OpenLayers.Geometry.Polygon([linearRing]));
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polygonFeature.attributes = {
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name: "dude",
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age: 21,
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favColor: 'purple',
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align: 'lb'
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};
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multiFeature = new OpenLayers.Feature.Vector(
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new OpenLayers.Geometry.Collection([
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new OpenLayers.Geometry.LineString([
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new OpenLayers.Geometry.Point(-105,40),
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new OpenLayers.Geometry.Point(-95,45)
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]),
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new OpenLayers.Geometry.Point(-105, 40)
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]),
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{
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name: "ball-and-chain",
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age: 30,
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favColor: 'black',
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align: 'rt'
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});
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// Create a point feature to show the label offset options
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var labelOffsetPoint = new OpenLayers.Geometry.Point(-101.04, 35.68);
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var labelOffsetFeature = new OpenLayers.Feature.Vector(labelOffsetPoint);
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labelOffsetFeature.attributes = {
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name: "offset",
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age: 22,
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favColor: 'blue',
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align: "cm",
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// positive value moves the label to the right
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xOffset: 50,
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// negative value moves the label down
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yOffset: -15
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};
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var nullFeature = new OpenLayers.Feature.Vector(null);
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nullFeature.attributes = {
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name: "toto is some text about the world",
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age: 20,
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favColor: 'red',
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align: "cm"
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};
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map.addLayer(vectorLayer);
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vectorLayer.drawFeature(multiFeature);
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map.setCenter(new OpenLayers.LonLat(-109.370078125, 43.39484375), 4);
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vectorLayer.addFeatures([pointFeature, polygonFeature, multiFeature, labelOffsetFeature, nullFeature ]);
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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 Labeled features example</h1>
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<div id="tags">
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vector, feature, labeling, symbolizer, light
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</div>
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<p id="shortdesc">
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Label vector features with a text symbolizer.
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</p>
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<div id="map" class="smallmap"></div>
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<div id="docs">
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<p>This example shows drawing simple vector features with a label.</p>
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</div>
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</body>
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</html>
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