153cba8147
git-svn-id: http://svn.openlayers.org/trunk/openlayers@9978 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
135 lines
5.9 KiB
HTML
135 lines
5.9 KiB
HTML
<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>OpenLayers Fill, Stroke, and Graphic 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" type="text/javascript"></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://labs.metacarta.com/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({
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'default': new OpenLayers.Style(null, {
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rules: [
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new OpenLayers.Rule({
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symbolizer: {
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graphic: false,
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label: "Label for invisible point",
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labelSelect: true
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},
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filter: new OpenLayers.Filter.Comparison({
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type: "==",
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property: "topic",
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value: "point_invisible"
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})
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}),
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new OpenLayers.Rule({
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symbolizer: {
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stroke: true,
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fill: true,
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label: "Polygon with stroke and fill defaults"
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},
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filter: new OpenLayers.Filter.Comparison({
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type: "==",
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property: "topic",
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value: "polygon_defaults"
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})
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}),
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new OpenLayers.Rule({
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symbolizer: {
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stroke: true,
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fill: false,
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label: "Point without fill",
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labelAlign: "rb",
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fontColor: "#ff0000",
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fontOpacity: 0.4
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},
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filter: new OpenLayers.Filter.Comparison({
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type: "==",
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property: "topic",
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value: "point_nofill"
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})
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})
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]
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})
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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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topic: "point_invisible"
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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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topic: "polygon_defaults"
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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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topic: "point_nofill"
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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(point.x, point.y), 4);
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vectorLayer.addFeatures([pointFeature, polygonFeature, multiFeature]);
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var select = new OpenLayers.Control.SelectFeature(vectorLayer, {
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selectStyle: OpenLayers.Util.extend(
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{fill: true, stroke: true},
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OpenLayers.Feature.Vector.style["select"])
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});
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map.addControl(select);
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select.activate();
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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 Example</h1>
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<div id="tags"></div>
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<p id="shortdesc">
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Demonstrate fill, stroke, and graphic property of symbolizers.
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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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This example shows how to use symbolizers with defaults for stroke, fill, and graphic.
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This also allows to create labels for a feature without the feature rendered. Click on
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the label in the middle to see selection of features with labelSelect set to true.
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</div>
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</body>
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</html>
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