<!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" />
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<!-- Use Chrome Frame in IE -->
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<meta
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name="viewport"
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content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"
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/>
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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
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type="text/javascript"
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src="../../../Build/CesiumUnminified/Cesium.js"
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nomodule
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></script>
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<script type="module" src="../load-cesium-es6.js"></script>
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</head>
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<body
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class="sandcastle-loading"
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data-sandcastle-bucket="bucket-requirejs.html"
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>
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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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// 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(
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-74.01881302800248,
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40.69114333714821,
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753
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);
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var initialOrientation = new Cesium.HeadingPitchRoll.fromDegrees(
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21.27879878293835,
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-21.34390550872461,
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0.0716951918898415
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);
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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({
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url: Cesium.IonResource.fromAssetId(75343),
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});
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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(
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Cesium.ScreenSpaceEventType.LEFT_CLICK
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);
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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 (
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Cesium.PostProcessStageLibrary.isSilhouetteSupported(viewer.scene)
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) {
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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(
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Cesium.PostProcessStageLibrary.createSilhouetteStage([
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silhouetteBlue,
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silhouetteGreen,
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])
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);
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// Silhouette a feature blue on hover.
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viewer.screenSpaceEventHandler.setInputAction(function onMouseMove(
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movement
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) {
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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 =
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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("BIN");
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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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},
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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(
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movement
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) {
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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 =
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'Loading <div class="cesium-infoBox-loading"></div>';
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viewer.selectedEntity = selectedEntity;
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selectedEntity.description =
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'<table class="cesium-infoBox-defaultTable"><tbody>' +
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"<tr><th>BIN</th><td>" +
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pickedFeature.getProperty("BIN") +
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"</td></tr>" +
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"<tr><th>DOITT ID</th><td>" +
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pickedFeature.getProperty("DOITT_ID") +
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"</td></tr>" +
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"<tr><th>SOURCE ID</th><td>" +
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pickedFeature.getProperty("SOURCE_ID") +
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"</td></tr>" +
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"</tbody></table>";
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},
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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(
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movement
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) {
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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 =
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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(
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pickedFeature.color,
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highlighted.originalColor
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);
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pickedFeature.color = Cesium.Color.YELLOW;
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}
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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(
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movement
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) {
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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(
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highlighted.originalColor,
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selected.originalColor
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);
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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 =
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'Loading <div class="cesium-infoBox-loading"></div>';
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viewer.selectedEntity = selectedEntity;
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selectedEntity.description =
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'<table class="cesium-infoBox-defaultTable"><tbody>' +
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"<tr><th>BIN</th><td>" +
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pickedFeature.getProperty("BIN") +
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"</td></tr>" +
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"<tr><th>DOITT ID</th><td>" +
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pickedFeature.getProperty("DOITT_ID") +
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"</td></tr>" +
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"<tr><th>SOURCE ID</th><td>" +
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pickedFeature.getProperty("SOURCE_ID") +
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"</td></tr>" +
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"<tr><th>Longitude</th><td>" +
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pickedFeature.getProperty("longitude") +
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"</td></tr>" +
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"<tr><th>Latitude</th><td>" +
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pickedFeature.getProperty("latitude") +
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"</td></tr>" +
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"<tr><th>Height</th><td>" +
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pickedFeature.getProperty("height") +
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"</td></tr>" +
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"<tr><th>Terrain Height (Ellipsoid)</th><td>" +
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pickedFeature.getProperty("TerrainHeight") +
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"</td></tr>" +
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"</tbody></table>";
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},
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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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window.startupCalled = true;
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startup(Cesium);
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}
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</script>
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</body>
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</html>
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