kopia lustrzana https://github.com/f4exb/sdrangel
489 wiersze
22 KiB
HTML
489 wiersze
22 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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<script src="/Cesium/Cesium.js"></script>
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<style>
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@import url(/Cesium/Widgets/widgets.css);
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html,
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body,
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#cesiumContainer {
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width: 100%;
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height: 100%;
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margin: 0;
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padding: 0;
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overflow: hidden;
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}
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</style>
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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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</head>
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<body style="margin:0;padding:0">
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<div id="cesiumContainer"></div>
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<script>
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// See: https://community.cesium.com/t/how-to-run-an-animation-for-an-entity-model/16932
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function getActiveAnimations(viewer, entity) {
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var primitives = viewer.scene.primitives;
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var length = primitives.length;
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for(var i = 0; i < length; i++) {
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var primitive = primitives.get(i);
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if (primitive.id === entity && primitive instanceof Cesium.Model && primitive.ready) {
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return primitive.activeAnimations;
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}
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}
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return undefined;
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}
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function playAnimation(viewer, command, retries) {
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var entity = czmlStream.entities.getById(command.id);
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if (entity !== undefined) {
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var animations = getActiveAnimations(viewer, entity);
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if (animations !== undefined) {
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try {
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let options = {
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name: command.animation,
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startOffset: command.startOffset,
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reverse: command.reverse,
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loop: command.loop ? Cesium.ModelAnimationLoop.REPEAT : Cesium.ModelAnimationLoop.NONE,
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multiplier: command.multiplier,
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};
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options.startTime = Cesium.JulianDate.fromIso8601(command.startDateTime);
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// https://github.com/CesiumGS/cesium/issues/10048
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// Animations aren't moved to last frame if startTime in the past
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// so just play now, in order to ensure gears are down, etc
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if (Cesium.JulianDate.compare(options.startTime, viewer.clock.currentTime) < 0) {
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options.startTime = viewer.clock.currentTime;
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}
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if (command.duration != 0) {
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options.stopTime = Cesium.JulianDate.addSeconds(options.startTime, command.duration, new Cesium.JulianDate());
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}
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animations.add(options);
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} catch (e) {
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// Note we get TypeError instead of DeveloperError, if running minified version of Cesium
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if ((e instanceof Cesium.DeveloperError) || (e instanceof TypeError)) {
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// ADS-B plugin doesn't know which animations each aircraft has
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// so we should expect a lot of these, as it tries to start slat animations
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// on aircraft that do not have them
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console.log(`Exception playing ${command.animation} for ${command.id}\n${e}`);
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} else {
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throw e;
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}
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}
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} else {
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// Give Entity time to create primitive
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// No ready promise in entity API - https://github.com/CesiumGS/cesium/issues/4727
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if (retries > 0) {
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setTimeout(function() {
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//console.log(`Retrying animation for entity ${command.id}`);
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playAnimation(viewer, command, retries-1);
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}, 1000);
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} else {
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console.log(`Gave up trying to play animation for entity ${command.id}`);
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}
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}
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} else {
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// It seems in some cases, entities aren't created immediately, so wait and retry
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if (retries > 0) {
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setTimeout(function() {
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//console.log(`Retrying entity ${command.id}`);
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playAnimation(viewer, command, retries-1);
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}, 1000);
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} else {
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console.log(`Gave up trying to find entity ${command.id}`);
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}
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}
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}
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// There's no way to stop a looped animation that doesn't have a stopTime,
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// only remove it
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// So we need to remove it, then re-add it with a new stopTime, so that it
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// plays again if the timeline is changed
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function stopAnimation(viewer, command) {
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var entity = czmlStream.entities.getById(command.id);
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if (entity !== undefined) {
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var animations = getActiveAnimations(viewer, entity);
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if (animations !== undefined) {
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var length = animations.length;
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var anim = undefined;
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// Find animation with lastet startTime
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for (var i = 0; i < length; i++) {
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var a = animations.get(i);
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if (a.name == command.animation) {
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if ((anim === undefined) || (Cesium.JulianDate.compare(a.startTime, anim.startTime) >= 0)) {
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anim = a;
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}
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}
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}
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if (anim !== undefined) {
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animations.remove(anim);
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// Re add with new stopTime
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animations.add({
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name: anim.name,
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startOffset: anim.startOffset,
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reverse: anim.reverse,
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loop: anim.loop,
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multiplier: anim.multiplier,
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startTime: anim.startTime,
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stopTime: Cesium.JulianDate.fromIso8601(command.startDateTime)
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});
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}
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}
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}
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}
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function icrf(scene, time) {
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if (scene.mode !== Cesium.SceneMode.SCENE3D) {
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return;
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}
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var icrfToFixed = Cesium.Transforms.computeIcrfToFixedMatrix(time);
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if (Cesium.defined(icrfToFixed)) {
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var camera = viewer.camera;
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var offset = Cesium.Cartesian3.clone(camera.position);
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var transform = Cesium.Matrix4.fromRotationTranslation(icrfToFixed);
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camera.lookAtTransform(transform, offset);
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}
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}
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Cesium.Ion.defaultAccessToken = '$CESIUM_ION_API_KEY$';
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const viewer = new Cesium.Viewer('cesiumContainer', {
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terrainProvider: Cesium.createWorldTerrain(),
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animation: true,
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shouldAnimate: true,
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timeline: true,
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geocoder: false,
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fullscreenButton: true,
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navigationHelpButton: false,
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navigationInstructionsInitiallyVisible: false,
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terrainProviderViewModels: [] // User should adjust terrain via dialog, so depthTestAgainstTerrain doesn't get set
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});
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viewer.scene.globe.depthTestAgainstTerrain = false; // So labels/points aren't clipped by terrain
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var buildings = undefined;
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const images = new Map();
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var mufGeoJSONStream = null;
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var foF2GeoJSONStream = null;
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// Generate HTML for MUF contour info box from properties in GeoJSON
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function describeMUF(properties, nameProperty) {
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let html = "";
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if (properties.hasOwnProperty("level-value")) {
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const value = properties["level-value"];
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if (Cesium.defined(value)) {
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html = `<p>MUF: ${value} MHz<p>MUF (Maximum Usable Frequency) is the highest frequency that will reflect from the ionosphere on a 3000km path`;
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}
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}
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return html;
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}
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// Generate HTML for foF2 contour info box from properties in GeoJSON
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function describefoF2(properties, nameProperty) {
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let html = "";
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if (properties.hasOwnProperty("level-value")) {
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const value = properties["level-value"];
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if (Cesium.defined(value)) {
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html = `<p>foF2: ${value} MHz<p>foF2 (F2 region critical frequency) is the highest frequency that will be reflected vertically from the F2 ionosphere region`;
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}
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}
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return html;
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}
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// Use CZML to stream data from Map plugin to Cesium
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var czmlStream = new Cesium.CzmlDataSource();
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viewer.dataSources.add(czmlStream);
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function cameraLight(scene, time) {
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viewer.scene.light.direction = Cesium.Cartesian3.clone(scene.camera.directionWC, viewer.scene.light.direction);
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}
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// Use WebSockets for handling commands from MapPlugin
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// (CZML doesn't support camera control, for example)
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// and sending events back to it
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let socket = new WebSocket("ws://127.0.0.1:$WS_PORT$");
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socket.onmessage = function(event) {
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try {
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const command = JSON.parse(event.data);
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if (command.command == "trackId") {
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// Track an entity with the given ID
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viewer.trackedEntity = czmlStream.entities.getById(command.id);
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} else if (command.command == "setHomeView") {
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// Set the viewing rectangle used when the home button is pressed
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Cesium.Camera.DEFAULT_VIEW_RECTANGLE = Cesium.Rectangle.fromDegrees(
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command.longitude - command.angle,
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command.latitude - command.angle,
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command.longitude + command.angle,
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command.latitude + command.angle
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);
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Cesium.Camera.DEFAULT_VIEW_FACTOR = 0.0;
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viewer.camera.flyHome(0);
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} else if (command.command == "setView") {
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// Set the camera view
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viewer.scene.camera.setView({
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destination: Cesium.Cartesian3.fromDegrees(command.longitude, command.latitude, command.altitude),
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orientation: {
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heading: 0,
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},
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});
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} else if (command.command == "playAnimation") {
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// Play model animation
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if (command.stop) {
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//console.log(`stopping animation ${command.animation} for ${command.id}`);
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stopAnimation(viewer, command);
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} else {
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//console.log(`playing animation ${command.animation} for ${command.id}`);
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playAnimation(viewer, command, 30);
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}
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} else if (command.command == "setDateTime") {
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// Set current date and time of viewer
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var dateTime = Cesium.JulianDate.fromIso8601(command.dateTime);
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viewer.clock.currentTime = dateTime;
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} else if (command.command == "getDateTime") {
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// Get current date and time of viewer
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reportClock();
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} else if (command.command == "setTerrain") {
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// Support using Ellipsoid terrain for performance and also
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// because paths can't be clammped to ground, so AIS paths
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// currently appear underground if terrain is used
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if (command.provider == "Ellipsoid") {
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if (!(viewer.terrainProvider instanceof Cesium.EllipsoidTerrainProvider)) {
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viewer.terrainProvider = new Cesium.EllipsoidTerrainProvider();
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}
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} else if (command.provider == "Cesium World Terrain") {
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viewer.terrainProvider = Cesium.createWorldTerrain();
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} else if (command.provider == "CesiumTerrainProvider") {
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viewer.terrainProvider = new Cesium.CesiumTerrainProvider({
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url: command.url
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});
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} else if (command.provider == "ArcGISTiledElevationTerrainProvider") {
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viewer.terrainProvider = new Cesium.ArcGISTiledElevationTerrainProvider({
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url: command.url
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});
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} else {
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console.log(`Unknown terrain ${command.terrain}`);
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}
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viewer.scene.globe.depthTestAgainstTerrain = false; // So labels/points aren't clipped by terrain
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} else if (command.command == "setBuildings") {
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if (command.buildings == "None") {
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if (buildings !== undefined) {
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viewer.scene.primitives.remove(buildings);
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buildings = undefined;
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}
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} else {
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if (buildings === undefined) {
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buildings = viewer.scene.primitives.add(Cesium.createOsmBuildings());
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}
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}
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} else if (command.command == "setSunLight") {
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// Enable illumination of the globe from the direction of the Sun or camera
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viewer.scene.globe.enableLighting = command.useSunLight;
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viewer.scene.globe.nightFadeOutDistance = 0.0;
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if (!command.useSunLight) {
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viewer.scene.light = new Cesium.DirectionalLight({
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direction : new Cesium.Cartesian3(1, 0, 0)
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});
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viewer.scene.preRender.addEventListener(cameraLight);
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} else {
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viewer.scene.light = new Cesium.SunLight();
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viewer.scene.preRender.removeEventListener(cameraLight);
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}
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} else if (command.command == "setCameraReferenceFrame") {
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if (command.eci) {
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viewer.scene.postUpdate.addEventListener(icrf);
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} else {
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viewer.scene.postUpdate.removeEventListener(icrf);
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}
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} else if (command.command == "setAntiAliasing") {
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if (command.antiAliasing == "FXAA") {
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viewer.scene.postProcessStages.fxaa.enabled = true;
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} else {
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viewer.scene.postProcessStages.fxaa.enabled = false;
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}
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} else if (command.command == "showMUF") {
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if (mufGeoJSONStream != null) {
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viewer.dataSources.remove(mufGeoJSONStream, true);
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mufGeoJSONStream = null;
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}
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if (command.show == true) {
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viewer.dataSources.add(
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Cesium.GeoJsonDataSource.load(
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"muf.geojson",
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{describe: describeMUF}
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)
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).then(function(dataSource) {mufGeoJSONStream = dataSource; });
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}
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} else if (command.command == "showfoF2") {
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if (foF2GeoJSONStream != null) {
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viewer.dataSources.remove(foF2GeoJSONStream, true);
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foF2GeoJSONStream = null;
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}
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if (command.show == true) {
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viewer.dataSources.add(
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Cesium.GeoJsonDataSource.load(
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"fof2.geojson",
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{describe: describefoF2}
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)
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).then(function(dataSource) {foF2GeoJSONStream = dataSource; });
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}
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} else if (command.command == "updateImage") {
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// Textures on entities can flash white when changed: https://github.com/CesiumGS/cesium/issues/1640
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// so we use a primitive instead of an entity
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// Can't modify geometry of primitives, so need to create a new primitive each time
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// Material needs to be set as translucent in order to allow camera to zoom through it
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var oldImage = images.get(command.name);
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var image = viewer.scene.primitives.add(new Cesium.Primitive({
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geometryInstances : new Cesium.GeometryInstance({
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geometry : new Cesium.RectangleGeometry({
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rectangle : Cesium.Rectangle.fromDegrees(command.west, command.south, command.east, command.north),
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vertexFormat : Cesium.EllipsoidSurfaceAppearance.VERTEX_FORMAT,
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height: command.altitude
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})
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}),
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appearance : new Cesium.EllipsoidSurfaceAppearance({
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aboveGround : false,
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material: new Cesium.Material({
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fabric: {
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type: 'Image',
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uniforms: {
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image: 'data:image/png;base64,' + command.data,
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}
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},
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translucent: true
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})
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})
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}));
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images.set(command.name, image);
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if (oldImage !== undefined) {
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image.readyPromise.then(function(prim) {
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viewer.scene.primitives.remove(oldImage);
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});
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}
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} else if (command.command == "removeImage") {
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var image = images.get(command.name);
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if (image !== undefined) {
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viewer.scene.primitives.remove(image);
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} else {
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console.log(`Can't find image ${command.name} to remove it`);
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}
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} else if (command.command == "removeAllImages") {
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for (let [k,image] of images) {
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viewer.scene.primitives.remove(image);
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}
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} else if (command.command == "removeAllCZMLEntities") {
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czmlStream.entities.removeAll();
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} else if (command.command == "czml") {
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// Implement CLIP_TO_GROUND, to work around https://github.com/CesiumGS/cesium/issues/4049
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if (command.hasOwnProperty('altitudeReference') && command.hasOwnProperty('position') && command.position.hasOwnProperty('cartographicDegrees')) {
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var size = command.position.cartographicDegrees.length;
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if ((size == 3) || (size == 4)) {
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var position;
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var height;
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if (size == 3) {
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position = Cesium.Cartographic.fromDegrees(command.position.cartographicDegrees[0], command.position.cartographicDegrees[1]);
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height = command.position.cartographicDegrees[2];
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} else if (size == 4) {
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position = Cesium.Cartographic.fromDegrees(command.position.cartographicDegrees[1], command.position.cartographicDegrees[2]);
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height = command.position.cartographicDegrees[3];
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}
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if (viewer.terrainProvider instanceof Cesium.EllipsoidTerrainProvider) {
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// sampleTerrainMostDetailed will reject Ellipsoid.
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if (height < 0) {
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if (size == 3) {
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command.position.cartographicDegrees[2] = 0;
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} else if (size == 4) {
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command.position.cartographicDegrees[3] = 0;
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}
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}
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czmlStream.process(command);
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} else {
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var promise = Cesium.sampleTerrainMostDetailed(viewer.terrainProvider, [position]);
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Cesium.when(promise, function(updatedPositions) {
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if (height < updatedPositions[0].height) {
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if (size == 3) {
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command.position.cartographicDegrees[2] = updatedPositions[0].height;
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} else if (size == 4) {
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command.position.cartographicDegrees[3] = updatedPositions[0].height;
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}
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}
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czmlStream.process(command);
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}, function() {
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console.log(`Terrain doesn't support sampleTerrainMostDetailed`);
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czmlStream.process(command);
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});
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};
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} else {
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console.log(`Can't currently use altitudeReference when more than one position`);
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czmlStream.process(command);
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}
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} else {
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czmlStream.process(command);
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}
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} else {
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console.log(`Unknown command ${command.command}`);
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}
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} catch(e) {
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console.log(`Erroring processing received message:\n${e}\n${event.data}`);
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}
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};
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viewer.selectedEntityChanged.addEventListener(function(selectedEntity) {
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if (Cesium.defined(selectedEntity) && Cesium.defined(selectedEntity.id)) {
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socket.send(JSON.stringify({event: "selected", id: selectedEntity.id}));
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} else {
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socket.send(JSON.stringify({event: "selected"}));
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}
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});
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viewer.trackedEntityChanged.addEventListener(function(trackedEntity) {
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if (Cesium.defined(trackedEntity) && Cesium.defined(trackedEntity.id)) {
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socket.send(JSON.stringify({event: "tracking", id: trackedEntity.id}));
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} else {
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socket.send(JSON.stringify({event: "tracking"}));
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}
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});
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// Report clock changes for use by other plugins
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var systemTime = new Cesium.JulianDate();
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function reportClock() {
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if (socket.readyState === 1) {
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Cesium.JulianDate.now(systemTime);
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socket.send(JSON.stringify({
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event: "clock",
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canAnimate: viewer.clock.canAnimate,
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shouldAnimate: viewer.clock.shouldAnimate,
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currentTime: Cesium.JulianDate.toIso8601(viewer.clock.currentTime),
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multiplier: viewer.clock.multiplier,
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systemTime: Cesium.JulianDate.toIso8601(systemTime)
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}));
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}
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};
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Cesium.knockout.getObservable(viewer.clockViewModel, 'shouldAnimate').subscribe(function(isAnimating) {
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reportClock();
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|
});
|
|
Cesium.knockout.getObservable(viewer.clockViewModel, 'multiplier').subscribe(function(multiplier) {
|
|
reportClock();
|
|
});
|
|
// This is called every frame
|
|
//Cesium.knockout.getObservable(viewer.clockViewModel, 'currentTime').subscribe(function(currentTime) {
|
|
//reportClock();
|
|
//});
|
|
viewer.timeline.addEventListener('settime', reportClock, false);
|
|
|
|
socket.onopen = () => {
|
|
reportClock();
|
|
};
|
|
|
|
</script>
|
|
</div>
|
|
</body>
|
|
</html>
|