Created
March 20, 2019 03:36
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Openlayers Cluster
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| <!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"> | |
| <link rel="stylesheet" href="http://dev.openlayers.org/theme/default/style.css" type="text/css"> | |
| <link rel="stylesheet" href="http://dev.openlayers.org/examples/style.css" type="text/css"> | |
| <script src="http://dev.openlayers.org/OpenLayers.js"></script> | |
| <script src="http://www.acuriousanimal.com/AnimatedCluster/AnimatedCluster.js"></script> | |
| <style> | |
| body { | |
| font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif | |
| } | |
| .smallmap { | |
| position: fixed; | |
| top: 0; | |
| left: 0; | |
| right: 0; | |
| bottom: 0; | |
| width: auto; | |
| height: auto; | |
| } | |
| </style> | |
| </head> | |
| <body onload="init()"> | |
| <div id="map" class="smallmap"></div> | |
| <script> | |
| var map; | |
| function init() { | |
| var map1 = new OpenLayers.Map("map"); | |
| var osm1 = new OpenLayers.Layer.OSM(); | |
| map1.addLayer(osm1); | |
| var center = new OpenLayers.LonLat(2, 40); | |
| center.transform(new OpenLayers.Projection("EPSG:4326"), new OpenLayers.Projection("EPSG:900913")); | |
| map1.setCenter(center, 2); | |
| map1.addControl(new OpenLayers.Control.LayerSwitcher()); | |
| var colors = { | |
| low: "rgb(181, 226, 140)", | |
| middle: "rgb(241, 211, 87)", | |
| high: "rgb(253, 156, 115)", | |
| red: "rgb(243, 28, 28)", | |
| }; | |
| var point = { | |
| office: [ | |
| new OpenLayers.Rule({ | |
| filter: new OpenLayers.Filter.Comparison({ | |
| type: OpenLayers.Filter.Comparison.LESS_THAN, | |
| property: "count", | |
| value: 2 | |
| }), | |
| symbolizer: { | |
| fillColor: colors.red, | |
| strokeWidth: 0, | |
| fillOpacity: 0.9, | |
| pointRadius: 5, | |
| } | |
| }), | |
| new OpenLayers.Rule({ | |
| filter: new OpenLayers.Filter.Comparison({ | |
| type: OpenLayers.Filter.Comparison.GREATER_THAN, | |
| property: "count", | |
| value: 1 | |
| }), | |
| symbolizer: { | |
| cursor: 'pointer', | |
| fillColor: colors.high, | |
| fillOpacity: 1, | |
| strokeColor: colors.high, | |
| strokeOpacity: 0.5, | |
| strokeWidth: 12, | |
| pointRadius: 20, | |
| label: "${count}", | |
| labelOutlineWidth: .5, | |
| fontColor: "#ffffff", | |
| fontOpacity: 0.8, | |
| fontSize: "12px" | |
| } | |
| }) | |
| ], | |
| wo: [ | |
| new OpenLayers.Rule({ | |
| filter: new OpenLayers.Filter.Comparison({ | |
| type: OpenLayers.Filter.Comparison.LESS_THAN, | |
| property: "count", | |
| value: 2 | |
| }), | |
| symbolizer: { | |
| fillColor: colors.low, | |
| strokeWidth: 0, | |
| fillOpacity: 0.9, | |
| pointRadius: 5, | |
| } | |
| }), | |
| new OpenLayers.Rule({ | |
| filter: new OpenLayers.Filter.Comparison({ | |
| type: OpenLayers.Filter.Comparison.GREATER_THAN, | |
| property: "count", | |
| value: 1 | |
| }), | |
| symbolizer: { | |
| cursor: 'pointer', | |
| fillColor: colors.low, | |
| fillOpacity: 1, | |
| strokeColor: colors.low, | |
| strokeOpacity: 0.5, | |
| strokeWidth: 12, | |
| pointRadius: 20, | |
| label: "${count}", | |
| labelOutlineWidth: .5, | |
| fontColor: "#ffffff", | |
| fontOpacity: 0.8, | |
| fontSize: "12px" | |
| } | |
| }) | |
| ], | |
| } | |
| function createVector(src, style) { | |
| v = new OpenLayers.Layer.Vector("Features", { | |
| protocol: new OpenLayers.Protocol.HTTP({ | |
| url: src, | |
| format: new OpenLayers.Format.GeoJSON() | |
| }), | |
| eventListeners: { | |
| 'featureselected': function (evt) { | |
| var feature = evt.feature; | |
| console.log(feature.cluster.length); | |
| if (feature.cluster.length === 1) { | |
| alert(JSON.stringify(feature.cluster[0].data)); | |
| } else { | |
| map1.zoomIn(); | |
| } | |
| } | |
| }, | |
| renderers: ['Canvas', 'SVG'], | |
| strategies: [ | |
| new OpenLayers.Strategy.Fixed(), | |
| new OpenLayers.Strategy.Cluster({ | |
| distance: 45, | |
| }), | |
| ], | |
| styleMap: new OpenLayers.StyleMap(style) | |
| }) | |
| var selectControl = new OpenLayers.Control.SelectFeature(v, {}); | |
| map1.addControl(selectControl); | |
| selectControl.activate(); | |
| return v; | |
| } | |
| var vector1 = createVector('others.json', new OpenLayers.Style(null, { | |
| rules: point.office | |
| })); | |
| map1.addLayer(vector1); | |
| var vector2 = createVector('others2.json', new OpenLayers.Style(null, { | |
| rules: point.wo | |
| })); | |
| map1.addLayer(vector2); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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