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 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>OpenLayers Fill, Stroke, and Graphic Example</title> <link rel="stylesheet" href="../theme/default/style.css" type="text/css" /> <link rel="stylesheet" href="style.css" type="text/css" /> <script src="../lib/OpenLayers.js" type="text/javascript"></script> <script type="text/javascript"> var map; function init() { map = new OpenLayers.Map('map'); var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS", "http://labs.metacarta.com/wms/vmap0", {layers: 'basic'} ); map.addLayer(layer); // allow testing of specific renderers via "?renderer=Canvas", etc var renderer = OpenLayers.Util.getParameters(window.location.href).renderer; renderer = (renderer) ? [renderer] : OpenLayers.Layer.Vector.prototype.renderers; var vectorLayer = new OpenLayers.Layer.Vector("Simple Geometry", { styleMap: new OpenLayers.StyleMap({ 'default': new OpenLayers.Style(null, { rules: [ new OpenLayers.Rule({ symbolizer: { graphic: false, label: "Label for invisible point" }, filter: new OpenLayers.Filter.Comparison({ type: "==", property: "topic", value: "point_invisible" }) }), new OpenLayers.Rule({ symbolizer: { stroke: true, fill: true, label: "Polygon with stroke and fill defaults" }, filter: new OpenLayers.Filter.Comparison({ type: "==", property: "topic", value: "polygon_defaults" }) }), new OpenLayers.Rule({ symbolizer: { stroke: true, fill: false, label: "Point without fill", labelAlign: "rb" }, filter: new OpenLayers.Filter.Comparison({ type: "==", property: "topic", value: "point_nofill" }) }) ] }) }), renderers: renderer }); // create a point feature var point = new OpenLayers.Geometry.Point(-111.04, 45.68); var pointFeature = new OpenLayers.Feature.Vector(point); pointFeature.attributes = { topic: "point_invisible" }; // create a polygon feature from a linear ring of points var pointList = []; for(var p=0; p<6; ++p) { var a = p * (2 * Math.PI) / 7; var r = Math.random(1) + 1; var newPoint = new OpenLayers.Geometry.Point(point.x + 5 + (r * Math.cos(a)), point.y + 5 + (r * Math.sin(a))); pointList.push(newPoint); } pointList.push(pointList[0]); var linearRing = new OpenLayers.Geometry.LinearRing(pointList); var polygonFeature = new OpenLayers.Feature.Vector( new OpenLayers.Geometry.Polygon([linearRing])); polygonFeature.attributes = { topic: "polygon_defaults" }; multiFeature = new OpenLayers.Feature.Vector( new OpenLayers.Geometry.Collection([ new OpenLayers.Geometry.LineString([ new OpenLayers.Geometry.Point(-105,40), new OpenLayers.Geometry.Point(-95,45) ]), new OpenLayers.Geometry.Point(-105, 40) ]), { topic: "point_nofill" }); map.addLayer(vectorLayer); vectorLayer.drawFeature(multiFeature); map.setCenter(new OpenLayers.LonLat(point.x, point.y), 4); vectorLayer.addFeatures([pointFeature, polygonFeature, multiFeature]); } </script> </head> <body onload="init()"> <h1 id="title">OpenLayers Example</h1> <div id="tags"></div> <p id="shortdesc"> Demonstrate fill, stroke, and graphic property of symbolizers. </p> <div id="map" class="smallmap"></div> <div id="docs"> This example shows how to use symbolizers with defaults for stroke, fill, and graphic. </div> </body> </html> |