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https://github.com/Viglino/ol-ext.git
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189 lines
6.0 KiB
HTML
189 lines
6.0 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>ol-ext: Openlayers feature animation</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="description" content="ol.featureAnimation are used to play animations on ol3 maps." />
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<meta name="keywords" content="ol3, animation, drop, slide, throw, fade, bounce, easing" />
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<!-- jQuery -->
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<script type="text/javascript" src="https://code.jquery.com/jquery-1.11.0.min.js"></script>
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<!-- Openlayers -->
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<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@latest/ol.css" />
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<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/ol@latest/dist/ol.js"></script>
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<!-- ol-ext -->
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<link rel="stylesheet" href="../../dist/ol-ext.css" />
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<script type="text/javascript" src="../../dist/ol-ext.js"></script>
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<!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
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<script src="https://unpkg.com/elm-pep"></script>
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<link rel="stylesheet" href="../style.css" />
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</head>
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<body >
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<a href="https://github.com/Viglino/ol-ext" class="icss-github-corner"><i></i></a>
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<a href="../../index.html">
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<h1>ol-ext: Openlayers feature animation</h1>
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</a>
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<p class="info">
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This example show how to use a transparent style to enable feature selection on animation loop.
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<br/>
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It uses an infinite animation loop to animate features on the map.
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A transparent feature is displayed to enable selection.
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</p>
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<!-- DIV pour la carte -->
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<div id="map" style="width:600px; height:400px;"></div>
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<div class="options">
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<h2>Options:</h2>
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<i>Click on features to stop/start animation...</i>
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</div>
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<script type="text/javascript">
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// Layers
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var layer = new ol.layer.Geoportail('ORTHOIMAGERY.ORTHOPHOTOS')
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// The map
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var map = new ol.Map({
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target: 'map',
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view: new ol.View ({
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zoom: 5,
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center: [166326, 5992663]
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}),
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layers: [layer]
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});
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// Change pointer over feature
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map.on("pointermove", function (evt) {
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var hit = this.forEachFeatureAtPixel(evt.pixel, function(feature, layer) { return true; });
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if (hit) this.getViewport().style.cursor = 'pointer';
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else this.getViewport().style.cursor = '';
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});
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// Style to draw the feature
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var color = [0,0,255];
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var fillcolor = [0,0,255,0.3];
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var style = [
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new ol.style.Style({
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image: new ol.style.Shadow({ radius: 15, }),
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stroke: new ol.style.Stroke({ color: [0,0,0,0.3], width: 2 }),
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fill: new ol.style.Fill({ color: [0,0,0,0.3]}),
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zIndex: -1
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}),
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new ol.style.Style({
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image: new ol.style.RegularShape({ radius: 10, radius2: 5, points: 5, displacement: [0, 10], fill: new ol.style.Fill({ color: color }) }),
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/** /
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image: new ol.style.Icon({
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src: 'https://cdn.pixabay.com/photo/2014/04/02/10/45/poi-304466_960_720.png',
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scale: .05,
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anchor: [0.5, 1]
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}),
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/**/
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stroke: new ol.style.Stroke({ color: color, width: 2}),
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fill: new ol.style.Fill({ color: fillcolor })
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})
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];
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// Transparent style to handle click on animation
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var transparent = [0,0,0,0.01];
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var filltransparent = [0,0,0,0];
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var transparentStyle = [
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new ol.style.Style({
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image: new ol.style.RegularShape({ radius: 10, radius2: 5, points: 5, displacement: [0, 10], fill: new ol.style.Fill({ color: transparent }) }),
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stroke: new ol.style.Stroke({ color: transparent, width: 2 }),
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fill: new ol.style.Fill({ color: filltransparent})
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})
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];
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// Intinite loop animation
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var animTab = [];
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var anim = new ol.featureAnimation.Bounce({
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duration: 800,
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hiddenStyle: transparentStyle
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});
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// Continune animation if not stop by user
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anim.on('animationend', function(e){
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if (!e.user) animTab[e.feature.get('nb')] = vector.animateFeature (e.feature, anim);
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});
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// On select start/stop animation
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var select = new ol.interaction.Select({ hitTolerance: 1 });
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map.addInteraction(select);
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select.on('select', function(e){
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if (e.selected.length){
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var f = e.selected[0];
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select.getFeatures().clear();
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// Create animation if doesn't exist
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if (!animTab[f.get('nb')]) {
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animTab[f.get('nb')] = vector.animateFeature (f, anim);
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}
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// Stop animation if playing
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else if (animTab[f.get('nb')].isPlaying()) {
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animTab[f.get('nb')].stop({user: true});
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} else {
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animTab[f.get('nb')].start();
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}
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}
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});
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// Vector layer
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var source = new ol.source.Vector();
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var vector = new ol.layer.Vector({
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source: source,
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style: style
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});
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map.addLayer(vector);
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// Add a feature on the map
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function addFeatureAt(nb, featureType, p) {
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var f, r = map.getView().getResolution() *10;
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switch (featureType) {
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case 0:
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f = new ol.Feature(new ol.geom.LineString([
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[p[0]-8*r,p[1]-3*r],
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[p[0]-2*r,p[1]+1*r],
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[p[0]+2*r,p[1]-1*r],
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[p[0]+8*r,p[1]+3*r]
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]));
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break;
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case 1:
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f = new ol.Feature(new ol.geom.Polygon([[
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[p[0]-4*r,p[1]-2*r],
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[p[0]+3*r,p[1]-2*r],
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[p[0]+1*r,p[1]-0.5*r],
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[p[0]+4*r,p[1]+2*r],
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[p[0]-2*r,p[1]+2*r],
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[p[0]-4*r,p[1]-2*r]
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]]));
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break;
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default:
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f = new ol.Feature(new ol.geom.Point(p));
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break;
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}
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f.set("nb", nb);
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vector.getSource().addFeature(f);
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}
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// Add 10 random features
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function add10() {
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// Clear and end animation loop
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vector.getSource().clear();
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select.getFeatures().clear();
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var ex = map.getView().calculateExtent(map.getSize());
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// Add features after animation ends
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for (var i=0; i<10; i++) {
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addFeatureAt( i, Math.round(Math.random()*3), [
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ex[0] +Math.random()*(ex[2]-ex[0]),
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ex[1] +Math.random()*(ex[3]-ex[1])
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]);
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};
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}
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add10();
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</script>
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</body>
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</html> |