Added viewer.zoomTo(timeDynamicPointCloud)

Author: lilleyse

Apps/Sandcastle/gallery/Time Dynamic Point Cloud.html

@@ -81,11 +81,7 @@
 clock.stopTime = stop;
 clock.clockRange = Cesium.ClockRange.LOOP_STOP;
 
-viewer.camera.setView({
-    destination: new Cesium.Cartesian3(1215034.013185971, -4736376.364704681, 4081587.528471664),
-    orientation: new Cesium.HeadingPitchRoll(6.2077134961933265, -0.6084278203800215, 6.282880789189662),
-    endTransform : Cesium.Matrix4.IDENTITY
-});
+viewer.zoomTo(pointCloud, new Cesium.HeadingPitchRange(0.0, -0.5, 50.0));
 //Sandcastle_End
     Sandcastle.finishedLoading();
 }

Source/Scene/PointCloud.js

@@ -180,7 +180,7 @@ define([
 
         this.time = 0.0; // For styling
         this.shadows = ShadowMode.ENABLED;
-        this.boundingSphere = undefined;
+        this._boundingSphere = undefined;
 
         this.clippingPlanes = undefined;
         this.isClipped = false;
@@ -229,6 +229,17 @@ define([
             set : function(value) {
                 this._highlightColor = Color.clone(value, this._highlightColor);
             }
+        },
+
+        boundingSphere : {
+            get : function() {
+                if (defined(this._drawCommand)) {
+                    return this._drawCommand.boundingVolume;
+                }
+            },
+            set : function(value) {
+                this._boundingSphere = BoundingSphere.clone(value);
+            }
         }
     });
 
@@ -634,9 +645,9 @@ define([
 
         if (pointCloud._cull) {
             if (isQuantized || isQuantizedDraco) {
-                pointCloud.boundingSphere = BoundingSphere.fromCornerPoints(Cartesian3.ZERO, pointCloud._quantizedVolumeScale);
+                pointCloud._boundingSphere = BoundingSphere.fromCornerPoints(Cartesian3.ZERO, pointCloud._quantizedVolumeScale);
             } else {
-                pointCloud.boundingSphere = computeApproximateBoundingSphereFromPositions(positions);
+                pointCloud._boundingSphere = computeApproximateBoundingSphereFromPositions(positions);
             }
         }
 
@@ -1298,7 +1309,7 @@ define([
             }
 
             var boundingSphere = this._drawCommand.boundingVolume;
-            BoundingSphere.clone(this.boundingSphere, boundingSphere);
+            BoundingSphere.clone(this._boundingSphere, boundingSphere);
 
             if (this._cull) {
                 var center = boundingSphere.center;

Source/Scene/TimeDynamicPointCloud.js

@@ -222,6 +222,22 @@ define([
             get : function() {
                 return this._totalMemoryUsageInBytes;
             }
+        },
+
+        /**
+         * The bounding sphere of the frame being rendered. Returns <code>undefined</code> if no frame is being rendered.
+         *
+         * @memberof TimeDynamicPointCloud.prototype
+         *
+         * @type {BoundingSphere}
+         * @readonly
+         */
+        boundingSphere : {
+            get : function() {
+                if (defined(this._lastRenderedFrame)) {
+                    return this._lastRenderedFrame.pointCloud.boundingSphere;
+                }
+            }
         }
     });
 

Source/Widgets/Viewer/Viewer.js

@@ -24,6 +24,7 @@ define([
         '../../Scene/Cesium3DTileset',
         '../../Scene/ImageryLayer',
         '../../Scene/SceneMode',
+        '../../Scene/TimeDynamicPointCloud',
         '../../ThirdParty/knockout',
         '../../ThirdParty/when',
         '../Animation/Animation',
@@ -71,6 +72,7 @@ define([
         Cesium3DTileset,
         ImageryLayer,
         SceneMode,
+        TimeDynamicPointCloud,
         knockout,
         when,
         Animation,
@@ -1740,7 +1742,7 @@ Either specify options.terrainProvider instead or set options.baseLayerPicker to
      * target will be the range. The heading will be determined from the offset. If the heading cannot be
      * determined from the offset, the heading will be north.</p>
      *
-     * @param {Entity|Entity[]|EntityCollection|DataSource|ImageryLayer|Cesium3DTileset|Promise.<Entity|Entity[]|EntityCollection|DataSource|ImageryLayer|Cesium3DTileset>} target The entity, array of entities, entity collection, data source, Cesium#DTileset, or imagery layer to view. You can also pass a promise that resolves to one of the previously mentioned types.
+     * @param {Entity|Entity[]|EntityCollection|DataSource|ImageryLayer|Cesium3DTileset|TimeDynamicPointCloud|Promise.<Entity|Entity[]|EntityCollection|DataSource|ImageryLayer|Cesium3DTileset|TimeDynamicPointCloud>} target The entity, array of entities, entity collection, data source, Cesium3DTileset, point cloud, or imagery layer to view. You can also pass a promise that resolves to one of the previously mentioned types.
      * @param {HeadingPitchRange} [offset] The offset from the center of the entity in the local east-north-up reference frame.
      * @returns {Promise.<Boolean>} A Promise that resolves to true if the zoom was successful or false if the target is not currently visualized in the scene or the zoom was cancelled.
      */
@@ -1766,7 +1768,7 @@ Either specify options.terrainProvider instead or set options.baseLayerPicker to
      * target will be the range. The heading will be determined from the offset. If the heading cannot be
      * determined from the offset, the heading will be north.</p>
      *
-     * @param {Entity|Entity[]|EntityCollection|DataSource|ImageryLayer|Cesium3DTileset|Promise.<Entity|Entity[]|EntityCollection|DataSource|ImageryLayer|Cesium3DTileset>} target The entity, array of entities, entity collection, data source, Cesium3DTileset, or imagery layer to view. You can also pass a promise that resolves to one of the previously mentioned types.
+     * @param {Entity|Entity[]|EntityCollection|DataSource|ImageryLayer|Cesium3DTileset|TimeDynamicPointCloud|Promise.<Entity|Entity[]|EntityCollection|DataSource|ImageryLayer|Cesium3DTileset|TimeDynamicPointCloud>} target The entity, array of entities, entity collection, data source, Cesium3DTileset, point cloud, or imagery layer to view. You can also pass a promise that resolves to one of the previously mentioned types.
      * @param {Object} [options] Object with the following properties:
      * @param {Number} [options.duration=3.0] The duration of the flight in seconds.
      * @param {Number} [options.maximumHeight] The maximum height at the peak of the flight.
@@ -1818,6 +1820,12 @@ Either specify options.terrainProvider instead or set options.baseLayerPicker to
                 return;
             }
 
+            //If the zoom target is a TimeDynamicPointCloud
+            if (zoomTarget instanceof TimeDynamicPointCloud) {
+                that._zoomTarget = zoomTarget;
+                return;
+            }
+
             //If the zoom target is a data source, and it's in the middle of loading, wait for it to finish loading.
             if (zoomTarget.isLoading && defined(zoomTarget.loadingEvent)) {
                 var removeEvent = zoomTarget.loadingEvent.addEventListener(function() {
@@ -1891,12 +1899,13 @@ Either specify options.terrainProvider instead or set options.baseLayerPicker to
         var zoomPromise = viewer._zoomPromise;
         var zoomOptions = defaultValue(viewer._zoomOptions, {});
         var options;
+        var boundingSphere;
 
         // If zoomTarget was Cesium3DTileset
         if (target instanceof Cesium3DTileset) {
             return target.readyPromise.then(function() {
                 var boundingSphere = target.boundingSphere;
-                // if offset was originally undefined then give it base value instead of empty object
+                // If offset was originally undefined then give it base value instead of empty object
                 if (!defined(zoomOptions.offset)) {
                     zoomOptions.offset = new HeadingPitchRange(0.0, -0.5, boundingSphere.radius);
                 }
@@ -1919,15 +1928,51 @@ Either specify options.terrainProvider instead or set options.baseLayerPicker to
                     camera.viewBoundingSphere(boundingSphere, zoomOptions.offset);
                     camera.lookAtTransform(Matrix4.IDENTITY);
 
-                    // finish the promise
+                    // Finish the promise
                     zoomPromise.resolve(true);
                 }
 
                 clearZoom(viewer);
             });
         }
 
-        //If zoomTarget was an ImageryLayer
+        // If zoomTarget was TimeDynamicPointCloud
+        if (target instanceof TimeDynamicPointCloud) {
+            boundingSphere = target.boundingSphere;
+            if (defined(boundingSphere)) {
+                // If offset was originally undefined then give it base value instead of empty object
+                if (!defined(zoomOptions.offset)) {
+                    zoomOptions.offset = new HeadingPitchRange(0.0, -0.5, boundingSphere.radius);
+                }
+
+                options = {
+                    offset : zoomOptions.offset,
+                    duration : zoomOptions.duration,
+                    maximumHeight : zoomOptions.maximumHeight,
+                    complete : function() {
+                        zoomPromise.resolve(true);
+                    },
+                    cancel : function() {
+                        zoomPromise.resolve(false);
+                    }
+                };
+
+                if (viewer._zoomIsFlight) {
+                    camera.flyToBoundingSphere(boundingSphere, options);
+                } else {
+                    camera.viewBoundingSphere(boundingSphere, zoomOptions.offset);
+                    camera.lookAtTransform(Matrix4.IDENTITY);
+
+                    // Finish the promise
+                    zoomPromise.resolve(true);
+                }
+
+                clearZoom(viewer);
+            }
+            return;
+        }
+
+        // If zoomTarget was an ImageryLayer
         if (target instanceof Rectangle) {
             options = {
                 destination : target,
@@ -1972,7 +2017,7 @@ Either specify options.terrainProvider instead or set options.baseLayerPicker to
         //Stop tracking the current entity.
         viewer.trackedEntity = undefined;
 
-        var boundingSphere = BoundingSphere.fromBoundingSpheres(boundingSpheres);
+        boundingSphere = BoundingSphere.fromBoundingSpheres(boundingSpheres);
 
         if (!viewer._zoomIsFlight) {
             camera.viewBoundingSphere(boundingSphere, viewer._zoomOptions.offset);

Specs/Scene/TimeDynamicPointCloudSpec.js

@@ -1,5 +1,6 @@
 defineSuite([
         'Scene/TimeDynamicPointCloud',
+        'Core/BoundingSphere',
         'Core/Cartesian3',
         'Core/Clock',
         'Core/ClockStep',
@@ -26,6 +27,7 @@ defineSuite([
         'ThirdParty/when'
     ], function(
         TimeDynamicPointCloud,
+        BoundingSphere,
         Cartesian3,
         Clock,
         ClockStep,
@@ -240,6 +242,22 @@ defineSuite([
         });
     });
 
+    it('gets bounding sphere of the rendered frame', function() {
+        var pointCloud = createTimeDynamicPointCloud({
+            useTransforms : true
+        });
+        expect(pointCloud.boundingSphere).toBeUndefined(); // Undefined until a frame is rendered
+        return loadAllFrames(pointCloud).then(function() {
+            var boundingSphereFrame0 = pointCloud.boundingSphere;
+            expect(boundingSphereFrame0).toBeDefined();
+            goToFrame(1);
+            scene.renderForSpecs();
+            var boundingSphereFrame1 = pointCloud.boundingSphere;
+            expect(boundingSphereFrame1).toBeDefined();
+            expect(BoundingSphere.equals(boundingSphereFrame0, boundingSphereFrame1)).toBe(false);
+        });
+    });
+
     it('sets show', function() {
         var pointCloud = createTimeDynamicPointCloud();