249 lines
11 KiB
HTML
249 lines
11 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,chrome=1"> <!-- Use Chrome Frame in IE -->
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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="Pick features in a 3D Tiles tileset.">
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<meta name="cesium-sandcastle-labels" content="Showcases, 3D Tiles">
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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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<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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// A simple demo of 3D Tiles feature picking with hover and select behavior
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// Building data courtesy of NYC OpenData portal: http://www1.nyc.gov/site/doitt/initiatives/3d-building.page
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var viewer = new Cesium.Viewer('cesiumContainer', {
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terrainProvider: Cesium.createWorldTerrain()
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});
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viewer.scene.globe.depthTestAgainstTerrain = true;
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// Set the initial camera view to look at Manhattan
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var initialPosition = Cesium.Cartesian3.fromDegrees(-74.01881302800248, 40.69114333714821, 753);
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var initialOrientation = new Cesium.HeadingPitchRoll.fromDegrees(21.27879878293835, -21.34390550872461, 0.0716951918898415);
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viewer.scene.camera.setView({
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destination: initialPosition,
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orientation: initialOrientation,
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endTransform: Cesium.Matrix4.IDENTITY
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});
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// Load the NYC buildings tileset
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var tileset = new Cesium.Cesium3DTileset({ url: Cesium.IonResource.fromAssetId(5741) });
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viewer.scene.primitives.add(tileset);
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// HTML overlay for showing feature name on mouseover
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var nameOverlay = document.createElement('div');
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viewer.container.appendChild(nameOverlay);
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nameOverlay.className = 'backdrop';
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nameOverlay.style.display = 'none';
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nameOverlay.style.position = 'absolute';
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nameOverlay.style.bottom = '0';
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nameOverlay.style.left = '0';
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nameOverlay.style['pointer-events'] = 'none';
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nameOverlay.style.padding = '4px';
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nameOverlay.style.backgroundColor = 'black';
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// Information about the currently selected feature
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var selected = {
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feature: undefined,
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originalColor: new Cesium.Color()
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};
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// An entity object which will hold info about the currently selected feature for infobox display
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var selectedEntity = new Cesium.Entity();
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// Get default left click handler for when a feature is not picked on left click
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var clickHandler = viewer.screenSpaceEventHandler.getInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);
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// If silhouettes are supported, silhouette features in blue on mouse over and silhouette green on mouse click.
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// If silhouettes are not supported, change the feature color to yellow on mouse over and green on mouse click.
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if (Cesium.PostProcessStageLibrary.isSilhouetteSupported(viewer.scene)) {
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// Silhouettes are supported
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var silhouetteBlue = Cesium.PostProcessStageLibrary.createEdgeDetectionStage();
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silhouetteBlue.uniforms.color = Cesium.Color.BLUE;
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silhouetteBlue.uniforms.length = 0.01;
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silhouetteBlue.selected = [];
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var silhouetteGreen = Cesium.PostProcessStageLibrary.createEdgeDetectionStage();
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silhouetteGreen.uniforms.color = Cesium.Color.LIME;
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silhouetteGreen.uniforms.length = 0.01;
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silhouetteGreen.selected = [];
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viewer.scene.postProcessStages.add(Cesium.PostProcessStageLibrary.createSilhouetteStage([silhouetteBlue, silhouetteGreen]));
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// Silhouette a feature blue on hover.
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viewer.screenSpaceEventHandler.setInputAction(function onMouseMove(movement) {
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// If a feature was previously highlighted, undo the highlight
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silhouetteBlue.selected = [];
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// Pick a new feature
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var pickedFeature = viewer.scene.pick(movement.endPosition);
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if (!Cesium.defined(pickedFeature)) {
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nameOverlay.style.display = 'none';
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return;
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}
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// A feature was picked, so show it's overlay content
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nameOverlay.style.display = 'block';
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nameOverlay.style.bottom = viewer.canvas.clientHeight - movement.endPosition.y + 'px';
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nameOverlay.style.left = movement.endPosition.x + 'px';
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var name = pickedFeature.getProperty('name');
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if (!Cesium.defined(name)) {
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name = pickedFeature.getProperty('id');
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}
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nameOverlay.textContent = name;
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// Highlight the feature if it's not already selected.
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if (pickedFeature !== selected.feature) {
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silhouetteBlue.selected = [pickedFeature];
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}
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}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
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// Silhouette a feature on selection and show metadata in the InfoBox.
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viewer.screenSpaceEventHandler.setInputAction(function onLeftClick(movement) {
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// If a feature was previously selected, undo the highlight
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silhouetteGreen.selected = [];
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// Pick a new feature
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var pickedFeature = viewer.scene.pick(movement.position);
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if (!Cesium.defined(pickedFeature)) {
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clickHandler(movement);
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return;
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}
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// Select the feature if it's not already selected
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if (silhouetteGreen.selected[0] === pickedFeature) {
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return;
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}
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// Save the selected feature's original color
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var highlightedFeature = silhouetteBlue.selected[0];
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if (pickedFeature === highlightedFeature) {
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silhouetteBlue.selected = [];
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}
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// Highlight newly selected feature
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silhouetteGreen.selected = [pickedFeature];
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// Set feature infobox description
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var featureName = pickedFeature.getProperty('name');
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selectedEntity.name = featureName;
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selectedEntity.description = 'Loading <div class="cesium-infoBox-loading"></div>';
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viewer.selectedEntity = selectedEntity;
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selectedEntity.description = '<table class="cesium-infoBox-defaultTable"><tbody>' +
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'<tr><th>BIN</th><td>' + pickedFeature.getProperty('BIN') + '</td></tr>' +
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'<tr><th>DOITT ID</th><td>' + pickedFeature.getProperty('DOITT_ID') + '</td></tr>' +
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'<tr><th>SOURCE ID</th><td>' + pickedFeature.getProperty('SOURCE_ID') + '</td></tr>' +
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'</tbody></table>';
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}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
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} else {
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// Silhouettes are not supported. Instead, change the feature color.
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// Information about the currently highlighted feature
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var highlighted = {
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feature : undefined,
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originalColor : new Cesium.Color()
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};
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// Color a feature yellow on hover.
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viewer.screenSpaceEventHandler.setInputAction(function onMouseMove(movement) {
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// If a feature was previously highlighted, undo the highlight
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if (Cesium.defined(highlighted.feature)) {
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highlighted.feature.color = highlighted.originalColor;
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highlighted.feature = undefined;
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}
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// Pick a new feature
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var pickedFeature = viewer.scene.pick(movement.endPosition);
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if (!Cesium.defined(pickedFeature)) {
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nameOverlay.style.display = 'none';
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return;
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}
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// A feature was picked, so show it's overlay content
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nameOverlay.style.display = 'block';
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nameOverlay.style.bottom = viewer.canvas.clientHeight - movement.endPosition.y + 'px';
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nameOverlay.style.left = movement.endPosition.x + 'px';
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var name = pickedFeature.getProperty('name');
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if (!Cesium.defined(name)) {
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name = pickedFeature.getProperty('id');
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}
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nameOverlay.textContent = name;
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// Highlight the feature if it's not already selected.
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if (pickedFeature !== selected.feature) {
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highlighted.feature = pickedFeature;
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Cesium.Color.clone(pickedFeature.color, highlighted.originalColor);
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pickedFeature.color = Cesium.Color.YELLOW;
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}
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}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
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// Color a feature on selection and show metadata in the InfoBox.
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viewer.screenSpaceEventHandler.setInputAction(function onLeftClick(movement) {
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// If a feature was previously selected, undo the highlight
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if (Cesium.defined(selected.feature)) {
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selected.feature.color = selected.originalColor;
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selected.feature = undefined;
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}
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// Pick a new feature
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var pickedFeature = viewer.scene.pick(movement.position);
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if (!Cesium.defined(pickedFeature)) {
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clickHandler(movement);
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return;
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}
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// Select the feature if it's not already selected
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if (selected.feature === pickedFeature) {
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return;
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}
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selected.feature = pickedFeature;
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// Save the selected feature's original color
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if (pickedFeature === highlighted.feature) {
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Cesium.Color.clone(highlighted.originalColor, selected.originalColor);
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highlighted.feature = undefined;
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} else {
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Cesium.Color.clone(pickedFeature.color, selected.originalColor);
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}
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// Highlight newly selected feature
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pickedFeature.color = Cesium.Color.LIME;
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// Set feature infobox description
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var featureName = pickedFeature.getProperty('name');
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selectedEntity.name = featureName;
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selectedEntity.description = 'Loading <div class="cesium-infoBox-loading"></div>';
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viewer.selectedEntity = selectedEntity;
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selectedEntity.description = '<table class="cesium-infoBox-defaultTable"><tbody>' +
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'<tr><th>BIN</th><td>' + pickedFeature.getProperty('BIN') + '</td></tr>' +
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'<tr><th>DOITT ID</th><td>' + pickedFeature.getProperty('DOITT_ID') + '</td></tr>' +
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'<tr><th>SOURCE ID</th><td>' + pickedFeature.getProperty('SOURCE_ID') + '</td></tr>' +
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'<tr><th>Longitude</th><td>' + pickedFeature.getProperty('longitude') + '</td></tr>' +
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'<tr><th>Latitude</th><td>' + pickedFeature.getProperty('latitude') + '</td></tr>' +
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'<tr><th>Height</th><td>' + pickedFeature.getProperty('height') + '</td></tr>' +
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'<tr><th>Terrain Height (Ellipsoid)</th><td>' + pickedFeature.getProperty('TerrainHeight') + '</td></tr>' +
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'</tbody></table>';
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}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
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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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