58 lines
1.2 KiB
JavaScript
58 lines
1.2 KiB
JavaScript
goog.require('ol.Feature');
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goog.require('ol.Map');
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goog.require('ol.Overlay');
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goog.require('ol.RendererHint');
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goog.require('ol.View2D');
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goog.require('ol.geom.Point');
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goog.require('ol.layer.Vector');
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goog.require('ol.source.Vector');
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goog.require('ol.symbol');
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var count = 20000;
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var features = new Array(count);
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var e = 18000000;
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for (var i = 0; i < count; ++i) {
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features[i] = new ol.Feature({
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'geometry': new ol.geom.Point(
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[2 * e * Math.random() - e, 2 * e * Math.random() - e]),
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'i': i,
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'size': i % 2 ? 10 : 20
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});
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}
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var styles = {
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'10': {
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image: ol.symbol.renderCircle(
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5, {color: '#666666'}, {color: '#bada55', width: 1})
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},
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'20': {
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image: ol.symbol.renderCircle(
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10, {color: '#666666'}, {color: '#bada55', width: 1})
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}
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};
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var vector = new ol.layer.Vector({
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source: new ol.source.Vector({
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features: features
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}),
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styleFunction: function(feature) {
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return styles[feature.get('size')];
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}
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});
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var popup = new ol.Overlay({
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element: document.getElementById('popup')
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});
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var map = new ol.Map({
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layers: [vector],
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renderer: ol.RendererHint.CANVAS,
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target: 'map',
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view: new ol.View2D({
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center: [0, 0],
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zoom: 2
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}),
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overlays: [popup]
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});
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