108 lines
4.0 KiB
HTML
108 lines
4.0 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
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<meta name="description" content="Load GeoJSON or TopoJSON data and apply custom styling.">
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<meta name="cesium-sandcastle-labels" content="Showcases, Tutorials, DataSources">
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<title>Cesium Demo</title>
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<script type="text/javascript" src="../Sandcastle-header.js"></script>
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<script type="text/javascript" src="../../../ThirdParty/requirejs-2.1.20/require.js"></script>
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<script type="text/javascript">
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require.config({
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baseUrl : '../../../Source',
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waitSeconds : 60
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});
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</script>
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</head>
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<body class="sandcastle-loading" data-sandcastle-bucket="bucket-requirejs.html">
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<style>
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@import url(../templates/bucket.css);
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</style>
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<div id="cesiumContainer" class="fullSize"></div>
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<div id="loadingOverlay"><h1>Loading...</h1></div>
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<div id="toolbar"></div>
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<script id="cesium_sandcastle_script">
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function startup(Cesium) {
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'use strict';
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//Sandcastle_Begin
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var viewer = new Cesium.Viewer('cesiumContainer');
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//Example 1: Load with default styling.
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Sandcastle.addDefaultToolbarButton('Default styling', function() {
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viewer.dataSources.add(Cesium.GeoJsonDataSource.load('../../SampleData/ne_10m_us_states.topojson'));
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});
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//Example 2: Load with basic styling options.
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Sandcastle.addToolbarButton('Basic styling', function() {
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viewer.dataSources.add(Cesium.GeoJsonDataSource.load('../../SampleData/ne_10m_us_states.topojson', {
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stroke: Cesium.Color.HOTPINK,
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fill: Cesium.Color.PINK.withAlpha(0.5),
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strokeWidth: 3
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}));
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});
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//Example 3: Apply custom graphics after load.
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Sandcastle.addToolbarButton('Custom styling', function() {
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//Seed the random number generator for repeatable results.
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Cesium.Math.setRandomNumberSeed(0);
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var promise = Cesium.GeoJsonDataSource.load('../../SampleData/ne_10m_us_states.topojson');
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promise.then(function(dataSource) {
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viewer.dataSources.add(dataSource);
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//Get the array of entities
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var entities = dataSource.entities.values;
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var colorHash = {};
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for (var i = 0; i < entities.length; i++) {
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//For each entity, create a random color based on the state name.
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//Some states have multiple entities, so we store the color in a
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//hash so that we use the same color for the entire state.
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var entity = entities[i];
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var name = entity.name;
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var color = colorHash[name];
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if (!color) {
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color = Cesium.Color.fromRandom({
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alpha : 1.0
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});
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colorHash[name] = color;
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}
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//Set the polygon material to our random color.
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entity.polygon.material = color;
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//Remove the outlines.
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entity.polygon.outline = false;
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//Extrude the polygon based on the state's population. Each entity
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//stores the properties for the GeoJSON feature it was created from
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//Since the population is a huge number, we divide by 50.
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entity.polygon.extrudedHeight = entity.properties.Population / 50.0;
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}
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}).otherwise(function(error){
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//Display any errrors encountered while loading.
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window.alert(error);
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});
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});
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//Reset the scene when switching demos.
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Sandcastle.reset = function() {
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viewer.dataSources.removeAll();
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//Set the camera to a US centered tilted view and switch back to moving in world coordinates.
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viewer.camera.lookAt(Cesium.Cartesian3.fromDegrees(-98.0, 40.0), new Cesium.Cartesian3(0.0, -4790000.0, 3930000.0));
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viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
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};
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//Sandcastle_End
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Sandcastle.finishedLoading();
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}
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if (typeof Cesium !== 'undefined') {
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startup(Cesium);
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} else if (typeof require === 'function') {
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require(['Cesium'], startup);
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}
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</script>
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</body>
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</html>
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