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- import arrayFill from "../Core/arrayFill.js";
- import Check from "../Core/Check.js";
- import combine from "../Core/combine.js";
- import defaultValue from "../Core/defaultValue.js";
- import defined from "../Core/defined.js";
- import destroyObject from "../Core/destroyObject.js";
- import Event from "../Core/Event.js";
- import getTimestamp from "../Core/getTimestamp.js";
- import JulianDate from "../Core/JulianDate.js";
- import CesiumMath from "../Core/Math.js";
- import Matrix4 from "../Core/Matrix4.js";
- import Resource from "../Core/Resource.js";
- import when from "../ThirdParty/when.js";
- import ClippingPlaneCollection from "./ClippingPlaneCollection.js";
- import PointCloud from "./PointCloud.js";
- import PointCloudEyeDomeLighting from "./PointCloudEyeDomeLighting.js";
- import PointCloudShading from "./PointCloudShading.js";
- import SceneMode from "./SceneMode.js";
- import ShadowMode from "./ShadowMode.js";
- function TimeDynamicPointCloud(options) {
- options = defaultValue(options, defaultValue.EMPTY_OBJECT);
-
- Check.typeOf.object("options.clock", options.clock);
- Check.typeOf.object("options.intervals", options.intervals);
-
-
- this.show = defaultValue(options.show, true);
-
- this.modelMatrix = Matrix4.clone(
- defaultValue(options.modelMatrix, Matrix4.IDENTITY)
- );
-
- this.shadows = defaultValue(options.shadows, ShadowMode.ENABLED);
-
- this.maximumMemoryUsage = defaultValue(options.maximumMemoryUsage, 256);
-
- this.shading = new PointCloudShading(options.shading);
-
- this.style = options.style;
-
- this.frameFailed = new Event();
-
- this.frameChanged = new Event();
- this._clock = options.clock;
- this._intervals = options.intervals;
- this._clippingPlanes = undefined;
- this.clippingPlanes = options.clippingPlanes;
- this._pointCloudEyeDomeLighting = new PointCloudEyeDomeLighting();
- this._loadTimestamp = undefined;
- this._clippingPlanesState = 0;
- this._styleDirty = false;
- this._pickId = undefined;
- this._totalMemoryUsageInBytes = 0;
- this._frames = [];
- this._previousInterval = undefined;
- this._nextInterval = undefined;
- this._lastRenderedFrame = undefined;
- this._clockMultiplier = 0.0;
- this._readyPromise = when.defer();
-
- this._runningSum = 0.0;
- this._runningLength = 0;
- this._runningIndex = 0;
- this._runningSamples = arrayFill(new Array(5), 0.0);
- this._runningAverage = 0.0;
- }
- Object.defineProperties(TimeDynamicPointCloud.prototype, {
-
- clippingPlanes: {
- get: function () {
- return this._clippingPlanes;
- },
- set: function (value) {
- ClippingPlaneCollection.setOwner(value, this, "_clippingPlanes");
- },
- },
-
- totalMemoryUsageInBytes: {
- get: function () {
- return this._totalMemoryUsageInBytes;
- },
- },
-
- boundingSphere: {
- get: function () {
- if (defined(this._lastRenderedFrame)) {
- return this._lastRenderedFrame.pointCloud.boundingSphere;
- }
- return undefined;
- },
- },
-
- readyPromise: {
- get: function () {
- return this._readyPromise.promise;
- },
- },
- });
- function getFragmentShaderLoaded(fs) {
- return "uniform vec4 czm_pickColor;\n" + fs;
- }
- function getUniformMapLoaded(stream) {
- return function (uniformMap) {
- return combine(uniformMap, {
- czm_pickColor: function () {
- return stream._pickId.color;
- },
- });
- };
- }
- function getPickIdLoaded() {
- return "czm_pickColor";
- }
- TimeDynamicPointCloud.prototype.makeStyleDirty = function () {
- this._styleDirty = true;
- };
- TimeDynamicPointCloud.prototype._getAverageLoadTime = function () {
- if (this._runningLength === 0) {
-
- return 0.05;
- }
- return this._runningAverage;
- };
- var scratchDate = new JulianDate();
- function getClockMultiplier(that) {
- var clock = that._clock;
- var isAnimating = clock.canAnimate && clock.shouldAnimate;
- var multiplier = clock.multiplier;
- return isAnimating ? multiplier : 0.0;
- }
- function getIntervalIndex(that, interval) {
- return that._intervals.indexOf(interval.start);
- }
- function getNextInterval(that, currentInterval) {
- var intervals = that._intervals;
- var clock = that._clock;
- var multiplier = getClockMultiplier(that);
- if (multiplier === 0.0) {
- return undefined;
- }
- var averageLoadTime = that._getAverageLoadTime();
- var time = JulianDate.addSeconds(
- clock.currentTime,
- averageLoadTime * multiplier,
- scratchDate
- );
- var index = intervals.indexOf(time);
- var currentIndex = getIntervalIndex(that, currentInterval);
- if (index === currentIndex) {
- if (multiplier >= 0) {
- ++index;
- } else {
- --index;
- }
- }
-
- return intervals.get(index);
- }
- function getCurrentInterval(that) {
- var intervals = that._intervals;
- var clock = that._clock;
- var time = clock.currentTime;
- var index = intervals.indexOf(time);
-
- return intervals.get(index);
- }
- function reachedInterval(that, currentInterval, nextInterval) {
- var multiplier = getClockMultiplier(that);
- var currentIndex = getIntervalIndex(that, currentInterval);
- var nextIndex = getIntervalIndex(that, nextInterval);
- if (multiplier >= 0) {
- return currentIndex >= nextIndex;
- }
- return currentIndex <= nextIndex;
- }
- function handleFrameFailure(that, uri) {
- return function (error) {
- var message = defined(error.message) ? error.message : error.toString();
- if (that.frameFailed.numberOfListeners > 0) {
- that.frameFailed.raiseEvent({
- uri: uri,
- message: message,
- });
- } else {
- console.log("A frame failed to load: " + uri);
- console.log("Error: " + message);
- }
- };
- }
- function requestFrame(that, interval, frameState) {
- var index = getIntervalIndex(that, interval);
- var frames = that._frames;
- var frame = frames[index];
- if (!defined(frame)) {
- var transformArray = interval.data.transform;
- var transform = defined(transformArray)
- ? Matrix4.fromArray(transformArray)
- : undefined;
- var uri = interval.data.uri;
- frame = {
- pointCloud: undefined,
- transform: transform,
- timestamp: getTimestamp(),
- sequential: true,
- ready: false,
- touchedFrameNumber: frameState.frameNumber,
- };
- frames[index] = frame;
- Resource.fetchArrayBuffer({
- url: uri,
- })
- .then(function (arrayBuffer) {
-
-
- frame.pointCloud = new PointCloud({
- arrayBuffer: arrayBuffer,
- cull: true,
- fragmentShaderLoaded: getFragmentShaderLoaded,
- uniformMapLoaded: getUniformMapLoaded(that),
- pickIdLoaded: getPickIdLoaded,
- });
- return frame.pointCloud.readyPromise;
- })
- .otherwise(handleFrameFailure(that, uri));
- }
- return frame;
- }
- function updateAverageLoadTime(that, loadTime) {
- that._runningSum += loadTime;
- that._runningSum -= that._runningSamples[that._runningIndex];
- that._runningSamples[that._runningIndex] = loadTime;
- that._runningLength = Math.min(
- that._runningLength + 1,
- that._runningSamples.length
- );
- that._runningIndex = (that._runningIndex + 1) % that._runningSamples.length;
- that._runningAverage = that._runningSum / that._runningLength;
- }
- function prepareFrame(that, frame, updateState, frameState) {
- if (frame.touchedFrameNumber < frameState.frameNumber - 1) {
-
-
- frame.sequential = false;
- }
- var pointCloud = frame.pointCloud;
- if (defined(pointCloud) && !frame.ready) {
-
- var commandList = frameState.commandList;
- var lengthBeforeUpdate = commandList.length;
- renderFrame(that, frame, updateState, frameState);
- if (pointCloud.ready) {
-
- frame.ready = true;
- that._totalMemoryUsageInBytes += pointCloud.geometryByteLength;
- commandList.length = lengthBeforeUpdate;
- if (frame.sequential) {
-
- var loadTime = (getTimestamp() - frame.timestamp) / 1000.0;
- updateAverageLoadTime(that, loadTime);
- }
- }
- }
- frame.touchedFrameNumber = frameState.frameNumber;
- }
- var scratchModelMatrix = new Matrix4();
- function getGeometricError(that, pointCloud) {
- var shading = that.shading;
- if (defined(shading) && defined(shading.baseResolution)) {
- return shading.baseResolution;
- } else if (defined(pointCloud.boundingSphere)) {
- return CesiumMath.cbrt(
- pointCloud.boundingSphere.volume() / pointCloud.pointsLength
- );
- }
- return 0.0;
- }
- function getMaximumAttenuation(that) {
- var shading = that.shading;
- if (defined(shading) && defined(shading.maximumAttenuation)) {
- return shading.maximumAttenuation;
- }
-
- return 10.0;
- }
- var defaultShading = new PointCloudShading();
- function renderFrame(that, frame, updateState, frameState) {
- var shading = defaultValue(that.shading, defaultShading);
- var pointCloud = frame.pointCloud;
- var transform = defaultValue(frame.transform, Matrix4.IDENTITY);
- pointCloud.modelMatrix = Matrix4.multiplyTransformation(
- that.modelMatrix,
- transform,
- scratchModelMatrix
- );
- pointCloud.style = that.style;
- pointCloud.time = updateState.timeSinceLoad;
- pointCloud.shadows = that.shadows;
- pointCloud.clippingPlanes = that._clippingPlanes;
- pointCloud.isClipped = updateState.isClipped;
- pointCloud.attenuation = shading.attenuation;
- pointCloud.backFaceCulling = shading.backFaceCulling;
- pointCloud.normalShading = shading.normalShading;
- pointCloud.geometricError = getGeometricError(that, pointCloud);
- pointCloud.geometricErrorScale = shading.geometricErrorScale;
- pointCloud.maximumAttenuation = getMaximumAttenuation(that);
- pointCloud.update(frameState);
- frame.touchedFrameNumber = frameState.frameNumber;
- }
- function loadFrame(that, interval, updateState, frameState) {
- var frame = requestFrame(that, interval, frameState);
- prepareFrame(that, frame, updateState, frameState);
- }
- function getUnloadCondition(frameState) {
- return function (frame) {
-
- return frame.touchedFrameNumber < frameState.frameNumber;
- };
- }
- function unloadFrames(that, unloadCondition) {
- var frames = that._frames;
- var length = frames.length;
- for (var i = 0; i < length; ++i) {
- var frame = frames[i];
- if (defined(frame)) {
- if (!defined(unloadCondition) || unloadCondition(frame)) {
- var pointCloud = frame.pointCloud;
- if (frame.ready) {
- that._totalMemoryUsageInBytes -= pointCloud.geometryByteLength;
- }
- if (defined(pointCloud)) {
- pointCloud.destroy();
- }
- if (frame === that._lastRenderedFrame) {
- that._lastRenderedFrame = undefined;
- }
- frames[i] = undefined;
- }
- }
- }
- }
- function getFrame(that, interval) {
- var index = getIntervalIndex(that, interval);
- var frame = that._frames[index];
- if (defined(frame) && frame.ready) {
- return frame;
- }
- }
- function updateInterval(that, interval, frame, updateState, frameState) {
- if (defined(frame)) {
- if (frame.ready) {
- return true;
- }
- loadFrame(that, interval, updateState, frameState);
- return frame.ready;
- }
- return false;
- }
- function getNearestReadyInterval(
- that,
- previousInterval,
- currentInterval,
- updateState,
- frameState
- ) {
- var i;
- var interval;
- var frame;
- var intervals = that._intervals;
- var frames = that._frames;
- var currentIndex = getIntervalIndex(that, currentInterval);
- var previousIndex = getIntervalIndex(that, previousInterval);
- if (currentIndex >= previousIndex) {
-
- for (i = currentIndex; i >= previousIndex; --i) {
- interval = intervals.get(i);
- frame = frames[i];
- if (updateInterval(that, interval, frame, updateState, frameState)) {
- return interval;
- }
- }
- } else {
-
- for (i = currentIndex; i <= previousIndex; ++i) {
- interval = intervals.get(i);
- frame = frames[i];
- if (updateInterval(that, interval, frame, updateState, frameState)) {
- return interval;
- }
- }
- }
-
- return previousInterval;
- }
- function setFramesDirty(that, clippingPlanesDirty, styleDirty) {
- var frames = that._frames;
- var framesLength = frames.length;
- for (var i = 0; i < framesLength; ++i) {
- var frame = frames[i];
- if (defined(frame) && defined(frame.pointCloud)) {
- frame.pointCloud.clippingPlanesDirty = clippingPlanesDirty;
- frame.pointCloud.styleDirty = styleDirty;
- }
- }
- }
- var updateState = {
- timeSinceLoad: 0,
- isClipped: false,
- clippingPlanesDirty: false,
- };
- TimeDynamicPointCloud.prototype.update = function (frameState) {
- if (frameState.mode === SceneMode.MORPHING) {
- return;
- }
- if (!this.show) {
- return;
- }
- if (!defined(this._pickId)) {
- this._pickId = frameState.context.createPickId({
- primitive: this,
- });
- }
- if (!defined(this._loadTimestamp)) {
- this._loadTimestamp = JulianDate.clone(frameState.time);
- }
-
- var timeSinceLoad = Math.max(
- JulianDate.secondsDifference(frameState.time, this._loadTimestamp) * 1000,
- 0.0
- );
-
- var clippingPlanes = this._clippingPlanes;
- var clippingPlanesState = 0;
- var clippingPlanesDirty = false;
- var isClipped = defined(clippingPlanes) && clippingPlanes.enabled;
- if (isClipped) {
- clippingPlanes.update(frameState);
- clippingPlanesState = clippingPlanes.clippingPlanesState;
- }
- if (this._clippingPlanesState !== clippingPlanesState) {
- this._clippingPlanesState = clippingPlanesState;
- clippingPlanesDirty = true;
- }
- var styleDirty = this._styleDirty;
- this._styleDirty = false;
- if (clippingPlanesDirty || styleDirty) {
- setFramesDirty(this, clippingPlanesDirty, styleDirty);
- }
- updateState.timeSinceLoad = timeSinceLoad;
- updateState.isClipped = isClipped;
- var shading = this.shading;
- var eyeDomeLighting = this._pointCloudEyeDomeLighting;
- var commandList = frameState.commandList;
- var lengthBeforeUpdate = commandList.length;
- var previousInterval = this._previousInterval;
- var nextInterval = this._nextInterval;
- var currentInterval = getCurrentInterval(this);
- if (!defined(currentInterval)) {
- return;
- }
- var clockMultiplierChanged = false;
- var clockMultiplier = getClockMultiplier(this);
- var clockPaused = clockMultiplier === 0;
- if (clockMultiplier !== this._clockMultiplier) {
- clockMultiplierChanged = true;
- this._clockMultiplier = clockMultiplier;
- }
- if (!defined(previousInterval) || clockPaused) {
- previousInterval = currentInterval;
- }
- if (
- !defined(nextInterval) ||
- clockMultiplierChanged ||
- reachedInterval(this, currentInterval, nextInterval)
- ) {
- nextInterval = getNextInterval(this, currentInterval);
- }
- previousInterval = getNearestReadyInterval(
- this,
- previousInterval,
- currentInterval,
- updateState,
- frameState
- );
- var frame = getFrame(this, previousInterval);
- if (!defined(frame)) {
-
-
- loadFrame(this, previousInterval, updateState, frameState);
- frame = this._lastRenderedFrame;
- }
- if (defined(frame)) {
- renderFrame(this, frame, updateState, frameState);
- }
- if (defined(nextInterval)) {
-
- loadFrame(this, nextInterval, updateState, frameState);
- }
- var that = this;
- if (defined(frame) && !defined(this._lastRenderedFrame)) {
- frameState.afterRender.push(function () {
- that._readyPromise.resolve(that);
- });
- }
- if (defined(frame) && frame !== this._lastRenderedFrame) {
- if (that.frameChanged.numberOfListeners > 0) {
- frameState.afterRender.push(function () {
- that.frameChanged.raiseEvent(that);
- });
- }
- }
- this._previousInterval = previousInterval;
- this._nextInterval = nextInterval;
- this._lastRenderedFrame = frame;
- var totalMemoryUsageInBytes = this._totalMemoryUsageInBytes;
- var maximumMemoryUsageInBytes = this.maximumMemoryUsage * 1024 * 1024;
- if (totalMemoryUsageInBytes > maximumMemoryUsageInBytes) {
- unloadFrames(this, getUnloadCondition(frameState));
- }
- var lengthAfterUpdate = commandList.length;
- var addedCommandsLength = lengthAfterUpdate - lengthBeforeUpdate;
- if (
- defined(shading) &&
- shading.attenuation &&
- shading.eyeDomeLighting &&
- addedCommandsLength > 0
- ) {
- eyeDomeLighting.update(
- frameState,
- lengthBeforeUpdate,
- shading,
- this.boundingSphere
- );
- }
- };
- TimeDynamicPointCloud.prototype.isDestroyed = function () {
- return false;
- };
- TimeDynamicPointCloud.prototype.destroy = function () {
- unloadFrames(this);
- this._clippingPlanes = this._clippingPlanes && this._clippingPlanes.destroy();
- this._pickId = this._pickId && this._pickId.destroy();
- return destroyObject(this);
- };
- export default TimeDynamicPointCloud;
|