1
0
mirror of https://github.com/f4exb/sdrangel.git synced 2026-04-04 06:05:40 -04:00

1349 lines
68 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<script src="/Cesium/Cesium.js"></script>
<style>
@import url(/Cesium/Widgets/widgets.css);
html,
body,
#cesiumContainer {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
overflow: hidden;
}
</style>
<meta name="viewport"
content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no" />
</head>
<body style="margin:0;padding:0">
<div id="cesiumContainer"></div>
<script src="grid.js"></script>
<script>
// See: https://community.cesium.com/t/how-to-run-an-animation-for-an-entity-model/16932
function getActiveAnimations(viewer, entity) {
var primitives = viewer.scene.primitives;
var length = primitives.length;
for (var i = 0; i < length; i++) {
var primitive = primitives.get(i);
if (primitive.id === entity && primitive instanceof Cesium.Model && primitive.ready) {
return primitive.activeAnimations;
}
}
return undefined;
}
function playAnimation(viewer, command, retries) {
var entity = czmlStream.entities.getById(command.id);
if (entity !== undefined) {
var animations = getActiveAnimations(viewer, entity);
if (animations !== undefined) {
try {
let options = {
name: command.animation,
startOffset: command.startOffset,
reverse: command.reverse,
loop: command.loop ? Cesium.ModelAnimationLoop.REPEAT : Cesium.ModelAnimationLoop.NONE,
multiplier: 0.2 // command.multiplier,
};
options.startTime = Cesium.JulianDate.fromIso8601(command.startDateTime);
// https://github.com/CesiumGS/cesium/issues/10048
// Animations aren't moved to last frame if startTime in the past
// so just play now, in order to ensure gears are down, etc
if (Cesium.JulianDate.compare(options.startTime, viewer.clock.currentTime) < 0) {
options.startTime = viewer.clock.currentTime;
}
if (command.duration != 0) {
options.stopTime = Cesium.JulianDate.addSeconds(options.startTime, command.duration, new Cesium.JulianDate());
}
const anim = animations.add(options);
} catch (e) {
// Note we get TypeError instead of DeveloperError, if running minified version of Cesium
if ((e instanceof Cesium.DeveloperError) || (e instanceof TypeError)) {
// ADS-B plugin doesn't know which animations each aircraft has
// so we should expect a lot of these, as it tries to start slat animations
// on aircraft that do not have them
console.log(`Exception playing ${command.animation} for ${command.id}\n${e}`);
} else {
throw e;
}
}
} else {
// Give Entity time to create primitive
// No ready promise in entity API - https://github.com/CesiumGS/cesium/issues/4727
if (retries > 0) {
setTimeout(function () {
//console.log(`Retrying animation for entity ${command.id}`);
playAnimation(viewer, command, retries - 1);
}, 1000);
} else {
console.log(`Gave up trying to play animation for entity ${command.id}`);
}
}
} else {
// It seems in some cases, entities aren't created immediately, so wait and retry
if (retries > 0) {
setTimeout(function () {
//console.log(`Retrying entity ${command.id}`);
playAnimation(viewer, command, retries - 1);
}, 1000);
} else {
console.log(`Gave up trying to find entity ${command.id}`);
}
}
}
// There's no way to stop a looped animation that doesn't have a stopTime,
// only remove it
// So we need to remove it, then re-add it with a new stopTime, so that it
// plays again if the timeline is changed
function stopAnimation(viewer, command) {
var entity = czmlStream.entities.getById(command.id);
if (entity !== undefined) {
var animations = getActiveAnimations(viewer, entity);
if (animations !== undefined) {
var length = animations.length;
var anim = undefined;
// Find animation with lastet startTime
for (var i = 0; i < length; i++) {
var a = animations.get(i);
if (a.name == command.animation) {
if ((anim === undefined) || (Cesium.JulianDate.compare(a.startTime, anim.startTime) >= 0)) {
anim = a;
}
}
}
if (anim !== undefined) {
animations.remove(anim);
// Re add with new stopTime
animations.add({
name: anim.name,
startOffset: anim.startOffset,
reverse: anim.reverse,
loop: anim.loop,
multiplier: anim.multiplier,
startTime: anim.startTime,
stopTime: Cesium.JulianDate.fromIso8601(command.startDateTime) // FIXME: Should this be stopDateTime?
});
}
}
}
}
function icrf(scene, time) {
if (scene.mode !== Cesium.SceneMode.SCENE3D) {
return;
}
var icrfToFixed = Cesium.Transforms.computeIcrfToFixedMatrix(time);
if (Cesium.defined(icrfToFixed)) {
var camera = viewer.camera;
var offset = Cesium.Cartesian3.clone(camera.position);
var transform = Cesium.Matrix4.fromRotationTranslation(icrfToFixed);
camera.lookAtTransform(transform, offset);
}
}
// Polygons (such as for airspaces) should be prioritized behind other entities
function pickEntityPrioritized(e) {
var picked = viewer.scene.drillPick(e.position);
if (Cesium.defined(picked)) {
var firstPolygon = null;
for (let i = 0; i < picked.length; i++) {
var id = Cesium.defaultValue(picked[i].id, picked[i].primitive.id);
if (id instanceof Cesium.Entity) {
if (!Cesium.defined(id.polygon)) {
return id;
} else if (firstPolygon == null) {
firstPolygon = id;
}
}
}
return firstPolygon;
}
}
function pickEntity(e) {
viewer.selectedEntity = pickEntityPrioritized(e);
}
function pickAndTrack(e) {
const entity = pickEntityPrioritized(e);
if (Cesium.defined(entity)) {
if (viewFirstPerson) {
setFirstPersonView(entity);
} else {
if (Cesium.Property.getValueOrUndefined(entity.position, viewer.clock.currentTime)) {
setThirdPersonView(entity);
} else {
viewer.zoomTo(entity);
}
}
} else if (Cesium.defined(viewer.trackedEntity)) {
//viewer.trackedEntity = undefined;
setThirdPersonView(undefined);
}
}
function showCoords(e) {
if (viewer.terrainProvider instanceof Cesium.EllipsoidTerrainProvider) {
var cartesian = viewer.camera.pickEllipsoid(e.position);
var cartographic = Cesium.Cartographic.fromCartesian(cartesian);
longitudeString = Cesium.Math.toDegrees(cartographic.longitude).toFixed(6);
latitudeString = Cesium.Math.toDegrees(cartographic.latitude).toFixed(6);
positionMarker.position = Cesium.Cartesian3.fromRadians(cartographic.longitude, cartographic.latitude, 1);
positionMarker.point.show = true;
positionMarker.label.show = true;
positionMarker.label.text =
`Lon: ${` ${longitudeString}`}\u00B0` +
`\nLat: ${` ${latitudeString}`}\u00B0`;
} else {
// https://github.com/CesiumGS/cesium/issues/4368
// viewer.scene.pickPosition doesn't work because we have viewer.scene.globe.depthTestAgainstTerrain = false
const ray = viewer.camera.getPickRay(e.position);
const cartesian = viewer.scene.globe.pick(ray, viewer.scene);
var cartographic = Cesium.Cartographic.fromCartesian(cartesian);
Promise.resolve(
Cesium.sampleTerrainMostDetailed(viewer.terrainProvider, [cartographic]),
).then((updatedPositions) => {
longitudeString = Cesium.Math.toDegrees(cartographic.longitude).toFixed(6);
latitudeString = Cesium.Math.toDegrees(cartographic.latitude).toFixed(6);
heightString = updatedPositions[0].height.toFixed(1);
positionMarker.position = Cesium.Cartesian3.fromRadians(cartographic.longitude, cartographic.latitude, 1); // Height relative to ground
positionMarker.point.show = true;
positionMarker.label.show = true;
positionMarker.label.text =
`Lon: ${` ${longitudeString}`}\u00B0` +
`\nLat: ${` ${latitudeString}`}\u00B0` +
`\nAlt: ${` ${heightString}`}m`;
});
}
}
function hideCoords() {
positionMarker.point.show = false;
positionMarker.label.show = false;
}
Cesium.Ion.defaultAccessToken = '$CESIUM_ION_API_KEY$';
if ('$ARCGIS_API_KEY$' != '') {
Cesium.ArcGisMapService.defaultAccessToken = '$ARCGIS_API_KEY$';
}
// Start time is set via CZML::init()
const viewer = new Cesium.Viewer('cesiumContainer', {
baseLayer: false,
terrainProvider: Cesium.createWorldTerrainAsync(),
animation: true,
shouldAnimate: true,
timeline: true,
geocoder: false,
fullscreenButton: true,
navigationHelpButton: false,
navigationInstructionsInitiallyVisible: false,
terrainProviderViewModels: [] // User should adjust terrain via dialog, so depthTestAgainstTerrain doesn't get set
});
//viewer.scene.debugShowFramesPerSecond = true; // FIXME: Embedded Chrome only runs at 60fps
viewer.scene.globe.depthTestAgainstTerrain = false; // So labels/points aren't clipped by terrain (this prevents pickPosition from working)
viewer.scene.globe.tileCacheSize = 5000; // FIXME: Embedded Chrome is slower at loading from cache
viewer.scene.moon.onlySunLighting = false; // Moon can be just a black dot if default of true
viewer.screenSpaceEventHandler.setInputAction(pickEntity, Cesium.ScreenSpaceEventType.LEFT_CLICK);
viewer.screenSpaceEventHandler.setInputAction(pickAndTrack, Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
viewer.screenSpaceEventHandler.setInputAction(showCoords, Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK, Cesium.KeyboardEventModifier.SHIFT);
viewer.screenSpaceEventHandler.setInputAction(hideCoords, Cesium.ScreenSpaceEventType.RIGHT_CLICK);
viewer.useBrowserRecommendedResolution = false; // Improves label quality when false, as drawn at higher res
viewer.infoBox.frame.setAttribute('sandbox', 'allow-same-origin allow-popups allow-forms allow-scripts allow-top-navigation');
viewer.infoBox.frame.src = "about:blank"; // Force reload so new attributes are applied
viewer.infoBox.viewModel.cameraClicked.removeEventListener(Cesium.Viewer.prototype._onInfoBoxCameraClicked, viewer); // Override info box camera button being clicked
viewer.infoBox.viewModel.cameraClicked.addEventListener(infoBoxCameraClicked, viewer);
var pfdTimer = undefined;
var pfdRadioAltTimer = undefined;
var buildings = undefined;
const images = new Map();
var mufGeoJSONStream = null;
var foF2GeoJSONStream = null;
var wmmGeoJSONStream = null;
const positionMarker = viewer.entities.add({
id: 'Position marker',
point: {
show: false,
pixelSize: 8,
color: Cesium.Color.RED,
heightReference: Cesium.HeightReference.RELATIVE_TO_GROUND
},
label: {
show: false,
showBackground: true,
font: "12px monospace",
fillColor: Cesium.Color.WHITE,
outlineColor: Cesium.Color.RED,
horizontalOrigin: Cesium.HorizontalOrigin.LEFT,
verticalOrigin: Cesium.VerticalOrigin.TOP,
pixelOffset: new Cesium.Cartesian2(0, 9),
heightReference: Cesium.HeightReference.RELATIVE_TO_GROUND
},
});
// Generate HTML for MUF contour info box from properties in GeoJSON
function describeMUF(properties, nameProperty) {
let html = "";
if (properties.hasOwnProperty("level-value")) {
const value = properties["level-value"];
if (Cesium.defined(value)) {
html = `<p>MUF: ${value} MHz<p>MUF (Maximum Usable Frequency) is the highest frequency that will reflect from the ionosphere on a 3000km path`;
}
}
return html;
}
// Generate HTML for foF2 contour info box from properties in GeoJSON
function describefoF2(properties, nameProperty) {
let html = "";
if (properties.hasOwnProperty("level-value")) {
const value = properties["level-value"];
if (Cesium.defined(value)) {
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`;
}
}
return html;
}
// Generate HTML for WMM contour info box from properties in GeoJSON
function describeWMM(properties, nameProperty) {
let html = "";
if (properties.hasOwnProperty("Contour")) {
const value = properties["Contour"];
if (Cesium.defined(value)) {
html = `<p>Magnetic declination: ${value} degrees`;
}
}
return html;
}
// Use CZML to stream data from Map plugin to Cesium
var czmlStream = new Cesium.CzmlDataSource();
viewer.dataSources.add(czmlStream);
function cameraLight(scene, time) {
viewer.scene.light.direction = Cesium.Cartesian3.clone(scene.camera.directionWC, viewer.scene.light.direction);
}
var velocityVectorProperty = undefined;
const velocityVector = new Cesium.Cartesian3();
var viewFirstPerson = false;
var firstPersonEntity;
var firstPersonOffset = 0.0;
var cameraSavedPositionValid = false;
var cameraSavedPosition;
var cameraSavedHeading;
var cameraSavedPitch;
var cameraSavedRoll;
var cameraSavedTransform;
var cameraInitPos = false;
// First person camera
function cameraFirstPerson(scene, time) {
const entity = firstPersonEntity;
if (!Cesium.defined(entity)) {
return;
}
const position = entity.position.getValue(time);
if (!Cesium.defined(position)) {
return;
}
let transform;
if (!Cesium.defined(entity.orientation)) {
transform = Cesium.Transforms.eastNorthUpToFixedFrame(position);
} else {
const orientation = entity.orientation.getValue(time);
if (!Cesium.defined(orientation)) {
return;
}
transform = Cesium.Matrix4.fromRotationTranslation(
Cesium.Matrix3.fromQuaternion(orientation),
position,
);
}
const camera = viewer.camera;
if (cameraInitPos) {
camera.position = new Cesium.Cartesian3(firstPersonOffset, 0.0, 0.0);
camera.direction = new Cesium.Cartesian3(1.0, 0.0, 0.0);
camera.up = new Cesium.Cartesian3(0.0, 0.0, 1.0);
camera.right = new Cesium.Cartesian3(0.0, -1.0, 0.0);
cameraInitPos = false;
}
// Save camera state
const offset = Cesium.Cartesian3.clone(camera.position);
const direction = Cesium.Cartesian3.clone(camera.direction);
const up = Cesium.Cartesian3.clone(camera.up);
// Set camera to be in model's reference frame.
camera.lookAtTransform(transform);
// Reset the camera state to the saved state so it appears fixed in the model's frame.
Cesium.Cartesian3.clone(offset, camera.position);
Cesium.Cartesian3.clone(direction, camera.direction);
Cesium.Cartesian3.clone(up, camera.up);
Cesium.Cartesian3.cross(direction, up, camera.right);
}
// Image overlays
function dataCallback(interval, index) {
let time;
//console.log("Interval: " + interval + " start:" + interval.start + " stop:" + interval.stop + " index: " + index);
if (index === 0) {
// leading
time = Cesium.JulianDate.toIso8601(interval.stop);
} else {
time = Cesium.JulianDate.toIso8601(interval.start);
}
//console.log("Returning time: " + time);
return {
Time: time,
};
}
const times = Cesium.TimeIntervalCollection.fromIso8601({
iso8601: "2015-07-30/2017-06-16/P1D", // P1D = 1 day
leadingInterval: true,
trailingInterval: true,
isStopIncluded: false,
dataCallback: dataCallback,
});
// See https://wiki.earthdata.nasa.gov/display/GIBS/GIBS+API+for+Developers#GIBSAPIforDevelopers-OGCWebMapService(WMS)
var gibsProvider = new Cesium.WebMapTileServiceImageryProvider({
url: "https://gibs.earthdata.nasa.gov/wmts/epsg4326/best/MODIS_Terra_CorrectedReflectance_TrueColor/default/{Time}/{TileMatrixSet}/{TileMatrix}/{TileRow}/{TileCol}.jpg",
layer: '', // FIXME
style: "default",
tileMatrixSetID: "250m",
format: "image/jpeg",
clock: viewer.clock,
times: times
});
const seaMarksProvider = new Cesium.UrlTemplateImageryProvider({
url: "https://tiles.openseamap.org/seamark/{z}/{x}/{y}.png"
});
const railwaysProvider = new Cesium.UrlTemplateImageryProvider({
url: "https://a.tiles.openrailwaymap.org/standard/{z}/{x}/{y}.png"
});
var rainProvider = new Cesium.UrlTemplateImageryProvider({
url: "https://tilecache.rainviewer.com/v2/radar/0000000000/256/{z}/{x}/{y}/4/1_1.png"
});
var cloudProvider = new Cesium.UrlTemplateImageryProvider({
url: "https://tilecache.rainviewer.com/v2/satellite/0000000000/256/{z}/{x}/{y}/0/0_0.png"
});
var auroraProvider = new Cesium.SingleTileImageryProvider({
url: "aurora.png",
tileWidth: 360,
tileHeight: 181
});
var gibsLayer = new Cesium.ImageryLayer(gibsProvider);
gibsLayer.show = false;
viewer.imageryLayers.add(gibsLayer);
var cloudLayer = new Cesium.ImageryLayer(cloudProvider);
cloudLayer.show = false;
viewer.imageryLayers.add(cloudLayer);
var rainLayer = new Cesium.ImageryLayer(rainProvider);
rainLayer.show = false;
viewer.imageryLayers.add(rainLayer);
const seaMarksLayer = new Cesium.ImageryLayer(seaMarksProvider);
seaMarksLayer.show = false;
viewer.imageryLayers.add(seaMarksLayer);
const railwaysLayer = new Cesium.ImageryLayer(railwaysProvider);
railwaysLayer.show = false;
viewer.imageryLayers.add(railwaysLayer);
var auroraLayer = new Cesium.ImageryLayer(auroraProvider);
auroraLayer.show = false;
viewer.imageryLayers.add(auroraLayer);
const layers = new Map([
["nasaGlobalImagery", gibsLayer],
["clouds", cloudLayer],
["rain", rainLayer],
["seaMarks", seaMarksLayer],
["railways", railwaysLayer],
["aurora", auroraLayer]
]);
function downloadBlob(filename, blob) {
if (window.navigator.msSaveOrOpenBlob) {
window.navigator.msSaveBlob(blob, filename);
} else {
const elem = window.document.createElement("a");
elem.href = window.URL.createObjectURL(blob);
elem.download = filename;
document.body.appendChild(elem);
elem.click();
document.body.removeChild(elem);
}
}
function downloadText(filename, text) {
var element = document.createElement('a');
element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
element.setAttribute('download', filename);
element.style.display = 'none';
document.body.appendChild(element);
element.click();
document.body.removeChild(element);
}
var dataDir = ""; // Directory where 3D models are stored
function modelCallback(modelGraphics, time, externalFiles) {
const resource = modelGraphics.uri.getValue(time);
console.log("modelcallback " + resource);
const regex = /http:\/\/127.0.0.1:\d+/;
var file = resource.url.replace(regex, dataDir);
// KML only supports Collada files. User will have to convert the models if required
file = file.replace(/glb$/, "dae");
file = file.replace(/gltf$/, "dae");
if (navigator.platform.indexOf('Win') > -1) {
file = file.replace(/\//g, "\\");
}
return file;
}
// Use WebSockets for handling commands from MapPlugin
// (CZML doesn't support camera control, for example)
// and sending events back to it
let socket = new WebSocket("ws://127.0.0.1:$WS_PORT$");
socket.onmessage = function (event) {
try {
const command = JSON.parse(event.data);
if (command.command == "trackId") {
// Track an entity with the given ID
viewer.trackedEntity = czmlStream.entities.getById(command.id);
} else if (command.command == "setHomeView") {
// Set the viewing rectangle used when the home button is pressed
Cesium.Camera.DEFAULT_VIEW_RECTANGLE = Cesium.Rectangle.fromDegrees(
command.longitude - command.angle,
command.latitude - command.angle,
command.longitude + command.angle,
command.latitude + command.angle
);
Cesium.Camera.DEFAULT_VIEW_FACTOR = 0.0;
viewer.camera.flyHome(0);
} else if (command.command == "setView") {
// Set the camera view
viewer.scene.camera.setView({
destination: Cesium.Cartesian3.fromDegrees(command.longitude, command.latitude, command.altitude),
orientation: {
heading: 0,
},
});
} else if (command.command == "setViewFirstPerson") {
if (command.firstPerson) {
// Use first person view from entity
viewFirstPerson = true;
setFirstPersonView(viewer.trackedEntity);
} else {
viewFirstPerson = false;
setThirdPersonView(firstPersonEntity);
}
} else if (command.command == "playAnimation") {
// Play model animation
if (command.stop) {
//console.log(`stopping animation ${command.animation} for ${command.id}`);
stopAnimation(viewer, command);
} else {
//console.log(`playing animation ${command.animation} for ${command.id} command` + JSON.stringify(command));
playAnimation(viewer, command, 30);
}
} else if (command.command == "setDateTime") {
// Set current date and time of viewer
var dateTime = Cesium.JulianDate.fromIso8601(command.dateTime);
viewer.clock.currentTime = dateTime;
} else if (command.command == "getDateTime") {
// Get current date and time of viewer
reportClock();
} else if (command.command == "setTerrain") {
// Support using Ellipsoid terrain for performance and also
// because paths can't be clammped to ground, so AIS paths
// currently appear underground if terrain is used
if (command.provider == "Ellipsoid") {
if (!(viewer.terrainProvider instanceof Cesium.EllipsoidTerrainProvider)) {
viewer.terrainProvider = new Cesium.EllipsoidTerrainProvider();
}
} else if (command.provider == "Cesium World Terrain") {
viewer.scene.setTerrain(
Cesium.Terrain.fromWorldTerrain({
requestWaterMask: command.water,
requestVertexNormals: command.terrainLighting
})
);
} else if (command.provider == "CesiumTerrainProvider") {
viewer.scene.setTerrain(
new Cesium.Terrain(
Cesium.CesiumTerrainProvider.fromUrl(
command.url,
{
requestWaterMask: command.water,
requestVertexNormals: command.terrainLighting
}
)
)
);
} else if (command.provider == "ArcGISTiledElevationTerrainProvider") {
viewer.scene.setTerrain(
new Cesium.Terrain(
Cesium.ArcGISTiledElevationTerrainProvider.fromUrl(
command.url,
{
requestWaterMask: command.water,
requestVertexNormals: command.terrainLighting
})
)
);
} else {
console.log(`Unknown terrain ${command.terrain}`);
}
viewer.scene.globe.depthTestAgainstTerrain = false; // So labels/points aren't clipped by terrain
} else if (command.command == "setBuildings") {
if (command.buildings == "None") {
if (buildings !== undefined) {
viewer.scene.primitives.remove(buildings);
buildings = undefined;
}
} else {
if (buildings === undefined) {
Promise.resolve(
Cesium.createOsmBuildingsAsync()
).then((osmBuildingsTileset) => {
buildings = viewer.scene.primitives.add(osmBuildingsTileset);
});
}
}
} else if (command.command == "setLighting") {
viewer.scene.globe.enableLighting = command.useSunLight;
//viewer.scene.globe.nightFadeOutDistance = 0.0; // FIXME: Can't be nearly 0. Causes terrain above horizon to be blacked out in 1.129
// Currently Cesium only supports a single light source, either Sun or Directional
if (!command.useSunLight) {
viewer.scene.light = new Cesium.DirectionalLight({
direction: new Cesium.Cartesian3(1, 0, 0),
intensity: command.cameraLightIntensity
});
viewer.scene.preRender.addEventListener(cameraLight);
} else {
viewer.scene.light = new Cesium.SunLight();
viewer.scene.preRender.removeEventListener(cameraLight);
}
} else if (command.command == "setCameraReferenceFrame") {
if (command.eci) {
viewer.scene.postUpdate.addEventListener(icrf);
} else {
viewer.scene.postUpdate.removeEventListener(icrf);
}
} else if (command.command == "setAntiAliasing") {
viewer.scene.postProcessStages.fxaa.enabled = command.fxaa;
viewer.scene.msaaSamples = command.msaa;
} else if (command.command == "setHDR") {
if (command.hdr) {
viewer.scene.highDynamicRange = true;
} else {
viewer.scene.highDynamicRange = false;
}
} else if (command.command == "setFog") {
if (command.fog) {
viewer.scene.fog.enabled = true;
} else {
viewer.scene.fog.enabled = false;
}
} else if (command.command == "showFPS") {
if (command.show) {
viewer.scene.debugShowFramesPerSecond = true;
} else {
viewer.scene.debugShowFramesPerSecond = false;
}
} else if (command.command == "showPFD") {
const pfdCanvas = document.getElementById("pfdCanvas");
if (command.show == true) {
if (pfdTimer === undefined) {
pfdTimer = setInterval(updatePFD, 10);
pfdRadioAltTimer = setInterval(updateRadioAlt, 250);
}
canvas.removeAttribute("hidden");
} else {
canvas.setAttribute("hidden", "hidden");
clearInterval(pfdTimer);
clearInterval(pfdRadioAltTimer);
pfdTimer = undefined;
pfdRadioAltTimer = undefined;
}
} else if (command.command == "showMUF") {
if (command.show == true) {
viewer.dataSources.add(
Cesium.GeoJsonDataSource.load(
"muf.geojson",
{ describe: describeMUF }
)
).then(function (dataSource) {
if (mufGeoJSONStream != null) {
viewer.dataSources.remove(mufGeoJSONStream, true);
mufGeoJSONStream = null;
}
mufGeoJSONStream = dataSource;
});
} else {
viewer.dataSources.remove(mufGeoJSONStream, true);
mufGeoJSONStream = null;
}
} else if (command.command == "showfoF2") {
if (command.show == true) {
viewer.dataSources.add(
Cesium.GeoJsonDataSource.load(
"fof2.geojson",
{ describe: describefoF2 }
)
).then(function (dataSource) {
if (foF2GeoJSONStream != null) {
viewer.dataSources.remove(foF2GeoJSONStream, true);
foF2GeoJSONStream = null;
}
foF2GeoJSONStream = dataSource;
});
} else {
viewer.dataSources.remove(foF2GeoJSONStream, true);
foF2GeoJSONStream = null;
}
} else if (command.command == "showMagneticDeclination") {
if (command.show == true) {
viewer.dataSources.add(
Cesium.GeoJsonDataSource.load(
"/map/data/wmm.geojson",
{ describe: describeWMM }
)
).then(function (dataSource) {
if (wmmGeoJSONStream != null) {
viewer.dataSources.remove(wmmGeoJSONStream, true);
wmmGeoJSONStream = null;
}
wmmGeoJSONStream = dataSource;
});
} else {
viewer.dataSources.remove(wmmGeoJSONStream, true);
wmmGeoJSONStream = null;
}
} else if (command.command == "showMaidenheadGrid") {
showGrid(command.show);
} else if (command.command == "setDefaultImagery") {
// For indexes, see pacakges/widgets/Source/BaseLayerPicker/createDefaultImageryProviderViewModels.js
if (command.imagery == "Bing Maps Aerial") {
viewer.baseLayerPicker.viewModel.selectedImagery = viewer.baseLayerPicker.viewModel.imageryProviderViewModels[0];
} else if (command.imagery == "ArcGIS world imagery") {
viewer.baseLayerPicker.viewModel.selectedImagery = viewer.baseLayerPicker.viewModel.imageryProviderViewModels[3];
} else if (command.imagery == "Ersi world ocean") {
viewer.baseLayerPicker.viewModel.selectedImagery = viewer.baseLayerPicker.viewModel.imageryProviderViewModels[5];
} else if (command.imagery == "Sentinel-2") {
viewer.baseLayerPicker.viewModel.selectedImagery = viewer.baseLayerPicker.viewModel.imageryProviderViewModels[11];
} else if (command.imagery == "Earth at night") {
viewer.baseLayerPicker.viewModel.selectedImagery = viewer.baseLayerPicker.viewModel.imageryProviderViewModels[13];
} else {
console.log(`Unknown imagery ${command.imagery}`);
}
} else if (command.command == "showLayer") {
layers.get(command.layer).show = command.show;
} else if (command.command == "setLayerSettings") {
if (command.layer == "NASAGlobalImagery") {
if ('url' in command) {
console.log("Using URL: " + command.url + " format: " + command.format + " matrixSet: " + command.tileMatrixSet + " dates:" + command.dates + " length: " + command.dates.length + " typeof: " + typeof (command.dates));
viewer.imageryLayers.remove(gibsLayer, true);
const times = Cesium.TimeIntervalCollection.fromIso8601({
iso8601: command.dates[0],
leadingInterval: true,
trailingInterval: true,
isStopIncluded: false,
dataCallback: dataCallback,
});
for (let i = 1; i < command.dates.length; i++) {
const times2 = Cesium.TimeIntervalCollection.fromIso8601({
iso8601: command.dates[i],
leadingInterval: true,
trailingInterval: true,
isStopIncluded: false,
dataCallback: dataCallback,
});
times.removeInterval(times.get(times.length - 1)); // Remove element that goes to end of time
for (let i = 1; i < times2.length; i++) {
times.addInterval(times2.get(i));
}
}
gibsProvider = new Cesium.WebMapTileServiceImageryProvider({
url: command.url,
layer: '', // FIXME
style: "default",
tileMatrixSetID: command.tileMatrixSet,
format: command.format,
clock: viewer.clock,
times: times
});
gibsLayer = new Cesium.ImageryLayer(gibsProvider);
gibsLayer.alpha = 0.5;
gibsLayer.show = command.show;
viewer.imageryLayers.add(gibsLayer);
layers.set(command.layer, gibsLayer);
}
if ('opacity' in command) {
gibsLayer.alpha = command.opacity / 100.0;
}
} else if (command.layer == "clouds") {
viewer.imageryLayers.remove(cloudLayer, true);
cloudProvider = new Cesium.UrlTemplateImageryProvider({
url: "https://tilecache.rainviewer.com/" + command.path + "/256/{z}/{x}/{y}/0/0_0.png"
});
cloudLayer = new Cesium.ImageryLayer(cloudProvider);
cloudLayer.show = command.show;
viewer.imageryLayers.add(cloudLayer);
layers.set(command.layer, cloudLayer);
} else if (command.layer == "rain") {
viewer.imageryLayers.remove(rainLayer, true);
rainProvider = new Cesium.UrlTemplateImageryProvider({
url: "https://tilecache.rainviewer.com/" + command.path + "/256/{z}/{x}/{y}/4/1_1.png"
});
rainLayer = new Cesium.ImageryLayer(rainProvider);
rainLayer.show = command.show;
viewer.imageryLayers.add(rainLayer);
layers.set(command.layer, rainLayer);
} else if (command.layer == "aurora") {
viewer.imageryLayers.remove(auroraLayer, true);
auroraProvider = new Cesium.SingleTileImageryProvider({
url: "aurora.png",
tileWidth: 360,
tileHeight: 181
});
auroraLayer = new Cesium.ImageryLayer(auroraProvider);
auroraLayer.show = command.show;
viewer.imageryLayers.add(auroraLayer);
layers.set(command.layer, auroraLayer);
} else {
console.log("Unknown layer: " + command.layer);
}
} else if (command.command == "updateImage") {
// Textures on entities can flash white when changed: https://github.com/CesiumGS/cesium/issues/1640
// so we use a primitive instead of an entity - FIXME: No longer working
// Can't modify geometry of primitives, so need to create a new primitive each time
// Material needs to be set as translucent in order to allow camera to zoom through it
var oldImage = images.get(command.name);
var image = viewer.scene.primitives.add(new Cesium.Primitive({
geometryInstances: new Cesium.GeometryInstance({
geometry: new Cesium.RectangleGeometry({
rectangle: Cesium.Rectangle.fromDegrees(command.west, command.south, command.east, command.north),
vertexFormat: Cesium.EllipsoidSurfaceAppearance.VERTEX_FORMAT,
height: command.altitude
})
}),
appearance: new Cesium.EllipsoidSurfaceAppearance({
aboveGround: false,
material: new Cesium.Material({
fabric: {
type: 'Image',
uniforms: {
image: command.data,
}
},
translucent: true
})
})
}));
images.set(command.name, image);
if (oldImage !== undefined) {
const removeListener = viewer.scene.postRender.addEventListener(() => {
if (!image.ready) {
return;
}
viewer.scene.primitives.remove(oldImage);
removeListener();
});
}
} else if (command.command == "removeImage") {
var image = images.get(command.name);
if (image !== undefined) {
viewer.scene.primitives.remove(image);
} else {
console.log(`Can't find image ${command.name} to remove it`);
}
} else if (command.command == "removeAllImages") {
for (let [k, image] of images) {
viewer.scene.primitives.remove(image);
}
} else if (command.command == "removeAllCZMLEntities") {
czmlStream.entities.removeAll();
} else if (command.command == "czml") {
// Implement CLIP_TO_GROUND, to work around https://github.com/CesiumGS/cesium/issues/4049 - Now fixed, so this may be obsolete
if (command.hasOwnProperty('altitudeReference') && command.hasOwnProperty('position') && command.position.hasOwnProperty('cartographicDegrees')) {
var size = command.position.cartographicDegrees.length;
if ((size == 3) || (size == 4)) {
var position;
var height;
if (size == 3) {
position = Cesium.Cartographic.fromDegrees(command.position.cartographicDegrees[0], command.position.cartographicDegrees[1]);
height = command.position.cartographicDegrees[2];
} else if (size == 4) {
position = Cesium.Cartographic.fromDegrees(command.position.cartographicDegrees[1], command.position.cartographicDegrees[2]);
height = command.position.cartographicDegrees[3];
}
if (viewer.terrainProvider instanceof Cesium.EllipsoidTerrainProvider) {
// sampleTerrainMostDetailed will reject Ellipsoid.
if (height < 0) {
if (size == 3) {
command.position.cartographicDegrees[2] = 0;
} else if (size == 4) {
command.position.cartographicDegrees[3] = 0;
}
}
czmlStream.process(command);
} else {
Promise.resolve(
Cesium.sampleTerrainMostDetailed(viewer.terrainProvider, [position]),
).then((updatedPositions) => {
if (height < updatedPositions[0].height) {
if (size == 3) {
command.position.cartographicDegrees[2] = updatedPositions[0].height;
} else if (size == 4) {
command.position.cartographicDegrees[3] = updatedPositions[0].height;
}
}
czmlStream.process(command);
});
};
} else {
console.log(`Can't currently use altitudeReference when more than one position`, command.position);
czmlStream.process(command);
}
} else if ((command.hasOwnProperty('polygon') && command.polygon.hasOwnProperty('altitudeReference'))
|| (command.hasOwnProperty('polyline') && command.polyline.hasOwnProperty('altitudeReference'))) {
// Support per vertex height reference in polygons and CLIP_TO_GROUND in polylines
var prim = command.hasOwnProperty('polygon') ? command.polygon : command.polyline;
var clipToGround = prim.altitudeReference == "CLIP_TO_GROUND";
var clampToGround = prim.altitudeReference == "CLAMP_TO_GROUND";
var size = prim.positions.cartographicDegrees.length;
var positionCount = size / 3;
var positions = new Array(positionCount);
if (viewer.terrainProvider instanceof Cesium.EllipsoidTerrainProvider) {
if (clampToGround) {
for (let i = 0; i < positionCount; i++) {
prim.positions.cartographicDegrees[i * 3 + 2] = 0;
}
} else if (clipToGround) {
for (let i = 0; i < positionCount; i++) {
if (prim.positions.cartographicDegrees[i * 3 + 2] < 0) {
prim.positions.cartographicDegrees[i * 3 + 2] = 0;
}
}
}
czmlStream.process(command);
} else {
for (let i = 0; i < positionCount; i++) {
positions[i] = Cesium.Cartographic.fromDegrees(prim.positions.cartographicDegrees[i * 3 + 0], prim.positions.cartographicDegrees[i * 3 + 1]);
}
Promise.resolve(
Cesium.sampleTerrainMostDetailed(viewer.terrainProvider, positions),
).then((updatedPositions) => {
if (clampToGround) {
for (let i = 0; i < positionCount; i++) {
prim.positions.cartographicDegrees[i * 3 + 2] = updatedPositions[i].height;
}
} else if (clipToGround) {
for (let i = 0; i < positionCount; i++) {
if (prim.positions.cartographicDegrees[i * 3 + 2] < updatedPositions[i].height) {
prim.positions.cartographicDegrees[i * 3 + 2] = updatedPositions[i].height;
}
}
}
czmlStream.process(command);
});
}
} else {
czmlStream.process(command);
}
} else if (command.command == "save") {
// Export to kml/kmz
dataDir = command.dataDir;
Cesium.exportKml({
entities: czmlStream.entities,
kmz: command.filename.endsWith("kmz"),
modelCallback: modelCallback
}).then(function (result) {
if (command.filename.endsWith("kmz")) {
downloadBlob(command.filename, result.kmz);
} else {
downloadText(command.filename, result.kml);
}
});
} else {
console.log(`Unknown command ${command.command}`);
}
} catch (e) {
console.log(`Erroring processing received message:\n${e}\n${event.data}`);
}
};
function setFirstPersonView(entity) {
if (!Cesium.defined(entity)) {
viewer.scene.postUpdate.removeEventListener(cameraFirstPerson);
return;
}
const camera = viewer.camera;
// Save current camera position/orientation so we can restore it, when going back to third person
/*
cameraSavedPosition = camera.positionWC.clone(cameraSavedPosition);
cameraSavedHeading = camera.heading;
cameraSavedPitch = camera.pitch;
cameraSavedRoll = camera.roll;
cameraSavedTransform = camera.transform.clone(cameraSavedTransform);
cameraSavedPositionValid = true;
console.log("******* SAVED POSITION", cameraSavedPosition, cameraSavedHeading, cameraSavedPitch, cameraSavedRoll, cameraSavedTransform);*/
viewer.trackedEntity = entity; // So infobox camera icon indicates we're trackingd
viewer.cesiumWidget._needTrackedEntityUpdate = false; // Prevent camera from zooming to it a bit later, and overwriting the position we set
firstPersonEntity = entity;
// Get size of model, so we can position camera at front of it, rather than in the middle
if (Cesium.defined(firstPersonEntity) && Cesium.defined(firstPersonEntity.id)) {
var primitives = viewer.scene.primitives;
var length = primitives.length;
for (var i = 0; i < length; i++) {
var primitive = primitives.get(i);
if (primitive.id === firstPersonEntity && primitive instanceof Cesium.Model && primitive.ready) {
firstPersonOffset = primitive.boundingSphere.radius;
}
}
}
cameraInitPos = true;
viewer.scene.postUpdate.addEventListener(cameraFirstPerson);
}
function setThirdPersonView(entity) {
viewer.trackedEntity = undefined; // If we're switching from first to third, ensure trackedEntity changes, so camera switches to it
viewer.trackedEntity = entity;
viewer.scene.postUpdate.removeEventListener(cameraFirstPerson);
firstPersonEntity = undefined;
/*if (cameraSavedPositionValid && !Cesium.defined(entity)) {
console.log("******* SAVED POSITION RESTORED", cameraSavedPosition, cameraSavedHeading, cameraSavedPitch, cameraSavedRoll, cameraSavedTransform);
const camera = viewer.camera;
camera.setView({
destination: cameraSavedPosition,
orientation: {
heading: cameraSavedHeading,
pitch: cameraSavedPitch,
roll: cameraSavedRoll
},
endTransform: cameraSavedTransform
});
//camera.transform = Cesium.Matrix4.clone(cameraSavedTransform, camera.transform);
cameraSavedPositionValid = false;
} else {
console.log("******* SAVED POSITION NOT RESTORED");
}*/
}
function infoBoxCameraClicked(infoBoxViewModel) {
if (infoBoxViewModel.isCameraTracking && viewer.trackedEntity === viewer.selectedEntity) {
if (viewFirstPerson === true) {
setThirdPersonView(undefined);
} else {
viewer.trackedEntity = undefined;
}
} else {
const selectedEntity = viewer.selectedEntity;
if (viewFirstPerson === true) {
setFirstPersonView(selectedEntity);
} else {
const position = selectedEntity.position;
if (Cesium.defined(position)) {
setThirdPersonView(selectedEntity);
} else {
viewer.zoomTo(viewer.selectedEntity);
}
}
}
}
viewer.selectedEntityChanged.addEventListener(function (selectedEntity) {
if (Cesium.defined(selectedEntity) && Cesium.defined(selectedEntity.id)) {
socket.send(JSON.stringify({ event: "selected", id: selectedEntity.id }));
// Calculate it's velocity for PFD
velocityVectorProperty = new Cesium.VelocityVectorProperty(selectedEntity.position, false);
} else {
socket.send(JSON.stringify({ event: "selected" }));
}
});
viewer.trackedEntityChanged.addEventListener(function (trackedEntity) {
if (Cesium.defined(trackedEntity) && Cesium.defined(trackedEntity.id)) {
socket.send(JSON.stringify({ event: "tracking", id: trackedEntity.id }));
} else {
socket.send(JSON.stringify({ event: "tracking" }));
}
});
// Report clock changes for use by other plugins
var systemTime = new Cesium.JulianDate();
function reportClock() {
if (socket.readyState === 1) {
Cesium.JulianDate.now(systemTime);
socket.send(JSON.stringify({
event: "clock",
canAnimate: viewer.clock.canAnimate,
shouldAnimate: viewer.clock.shouldAnimate,
currentTime: Cesium.JulianDate.toIso8601(viewer.clock.currentTime),
multiplier: viewer.clock.multiplier,
systemTime: Cesium.JulianDate.toIso8601(systemTime)
}));
}
};
// Can be called by onclick handler in anchors in the infobox, to pass a URL to SDRangel
function infoboxLink(url) {
socket.send(JSON.stringify({ event: "link", url: url }));
return false;
}
// Use WASD keys to move camera
document.addEventListener('keydown', function (event) {
var amount = 0.5;
if (event.key == 'w') {
viewer.camera.moveUp(amount);
} else if (event.key == 's') {
viewer.camera.moveDown(amount);
} else if (event.key == 'a') {
viewer.camera.moveLeft(amount);
} else if (event.key == 'd') {
viewer.camera.moveRight(amount);
} else if (event.key == 'q') {
viewer.camera.moveForward(amount);
} else if (event.key == 'e') {
viewer.camera.moveBackward(amount);
}
});
Cesium.knockout.getObservable(viewer.clockViewModel, 'shouldAnimate').subscribe(function (isAnimating) {
reportClock();
});
Cesium.knockout.getObservable(viewer.clockViewModel, 'multiplier').subscribe(function (multiplier) {
reportClock();
});
// This is called every frame, which is too fast, so instead use setInterval with 1 second period
//Cesium.knockout.getObservable(viewer.clockViewModel, 'currentTime').subscribe(function(currentTime) {
//reportClock();
//});
setInterval(function () {
reportClock();
}, 1000);
viewer.timeline.addEventListener('settime', reportClock, false);
socket.onopen = () => {
reportClock();
};
</script>
</div>
<canvas id="pfdCanvas" width="1000" height="1000" style="border:1px solid #000000;" hidden>
Browser does not support canvas.
</canvas>
<style>
#pfdCanvas {
position: absolute;
width: 500px;
height: 500px;
}
</style>
<script src="cockpit.js"></script>
<script>
// Position PFD in centre at bottom
const pfdCanvas = document.getElementById("pfdCanvas");
pfdCanvas.style.left = ((window.innerWidth / 2) - 250).toString() + "px";
pfdCanvas.style.top = (window.innerHeight - 500 - 30).toString() + "px";
if (pfdCanvas.style.width > window.innerWidth) {
pfdCanvas.style.width = Math.max(window.innerWidth, 250);
}
if (pfdCanvas.style.height > window.innerHeight) {
pfdCanvas.style.height = Math.max(window.innerHeight, 250);
}
function getPropertyValue(entity, propertyName) {
const property = entity.properties[propertyName];
if (Cesium.defined(property)) {
return property.getValue(viewer.clock.currentTime);
} else {
return undefined;
}
}
// Only valid for TimeIntervalCollection properties
function getTimerIntervalPropertyValueAt(entity, propertyName, time) {
var value = undefined;
const property = entity.properties[propertyName];
if (Cesium.defined(property)) {
value = property.getValue(time);
if (!Cesium.defined(value)) {
value = property.intervals.get(0).data; // Get first available value
}
}
return value;
}
// Only valid for SampledProperty properties
function getSampledPropertyValueAt(entity, propertyName, time) {
var value = undefined;
const property = entity.properties[propertyName];
if (Cesium.defined(property)) {
value = property.getValue(time);
if (!Cesium.defined(value)) {
value = property.getValue(property.getSample(0)); // Get first available value
}
}
return value;
}
var pfdEntity;
var pfd60SecsAgo = new Cesium.JulianDate();
var pfdPrevClock;
var pfdRadioAltitude;
var pfdRadioAltitudeEntity;
var pfdRadioAltPosition;
function updatePFD() {
// Display PFD for last selected aircraft
const entity = viewer.selectedEntity;
if (Cesium.defined(entity) && Cesium.defined(entity.properties) && ((entity.properties.hasProperty("pfdAltitude") || entity.properties.hasProperty("pfdOnSurface")))) {
if (entity !== pfdEntity) {
pfdRadioAltitude = undefined;
}
pfdEntity = entity;
}
if (Cesium.defined(pfdEntity)) {
var callsign;
var aircraftType;
if (pfdEntity.properties.hasProperty("pfdCallsign")) {
callsign = pfdEntity.properties["pfdCallsign"].getValue();
} else {
callsign = "";
}
if (pfdEntity.properties.hasProperty("pfdAircraftType")) {
aircraftType = pfdEntity.properties["pfdAircraftType"].getValue();
} else {
aircraftType = "";
}
pfd60SecsAgo = Cesium.JulianDate.addSeconds(viewer.clock.currentTime, -60, pfd60SecsAgo);
const onSurface = pfdEntity.properties["pfdOnSurface"].getValue(viewer.clock.currentTime);
const wasOnSurface60SecsAgo = getTimerIntervalPropertyValueAt(pfdEntity, "pfdOnSurface", pfd60SecsAgo);
const indicatedAirspeed = getPropertyValue(pfdEntity, "pfdIndicatedAirspeed");
const trueAirspeed = getPropertyValue(pfdEntity, "pfdTrueAirspeed");
const groundspeed = getPropertyValue(pfdEntity, "pfdGroundspeed");
const mach = getPropertyValue(pfdEntity, "pfdMach");
const altitude = getPropertyValue(pfdEntity, "pfdAltitude");
var runwayAltitudeEstimate = undefined;
if ((onSurface === 0) && (wasOnSurface60SecsAgo > 0)) {
runwayAltitudeEstimate = getSampledPropertyValueAt(pfdEntity, "pfdAltitude", pfd60SecsAgo);
}
const qnh = getPropertyValue(pfdEntity, "pfdQNH");
const verticalSpeed = getPropertyValue(pfdEntity, "pfdVerticalSpeed");
const heading = getPropertyValue(pfdEntity, "pfdHeading");
const track = getPropertyValue(pfdEntity, "pfdTrack");
const roll = getPropertyValue(pfdEntity, "pfdRoll");
const selectedAltitude = getPropertyValue(pfdEntity, "pfdSelectedAltitude");
const selectedHeading = getPropertyValue(pfdEntity, "pfdSelectedHeading");
const autopilot = getPropertyValue(pfdEntity, "pfdAutopilot");
const verticalMode = getPropertyValue(pfdEntity, "pfdVerticalMode");
const lateralMode = getPropertyValue(pfdEntity, "pfdLateralMode");
const tcasMode = getPropertyValue(pfdEntity, "pfdTCASMode");
const windSpeed = getPropertyValue(pfdEntity, "pfdWindSpeed");
const windDirection = getPropertyValue(pfdEntity, "pfdWindDirection");
const staticAirTemperature = getPropertyValue(pfdEntity, "pfdStaticAirTemperature");
velocityVectorProperty.getValue(viewer.clock.currentTime, velocityVector);
const modelSpeedMps = Cesium.Cartesian3.magnitude(velocityVector);
const modelSpeedKnots = Math.round(modelSpeedMps * 1.944);
// Is the clock moving forwards
const forward = pfdPrevClock === undefined ? true : Cesium.JulianDate.compare(viewer.clock.currentTime, pfdPrevClock) > 0;
setPFDData(forward, pfdEntity.id, callsign, aircraftType, onSurface, wasOnSurface60SecsAgo, runwayAltitudeEstimate,
modelSpeedKnots, indicatedAirspeed, trueAirspeed, groundspeed, mach, altitude, pfdRadioAltitude, qnh, verticalSpeed, heading, track, roll,
selectedAltitude, selectedHeading, autopilot, verticalMode, lateralMode, tcasMode,
windSpeed, windDirection, staticAirTemperature
);
}
drawPFD();
pfdPrevClock = Cesium.JulianDate.clone(viewer.clock.currentTime, pfdPrevClock);
}
function convertToNearest10Foot(metres) {
return Math.round((metres * 3.28084) / 10.0) * 10.0;
}
function updateRadioAlt() {
if (Cesium.defined(pfdEntity)) {
pfdRadioAltitudeEntity = pfdEntity;
pfdRadioAltPosition = pfdRadioAltitudeEntity.position.getValue(viewer.clock.currentTime, pfdRadioAltPosition);
if (Cesium.defined(pfdRadioAltPosition)) {
if (viewer.terrainProvider instanceof Cesium.EllipsoidTerrainProvider) {
pfdRadioAltitude = convertToNearest10Foot(Cesium.Cartographic.fromCartesian(pfdRadioAltPosition).height);
} else {
Promise.resolve(
Cesium.sampleTerrainMostDetailed(viewer.terrainProvider, [pfdRadioAltPosition]),
).then((updatedPositions) => {
if (pfdRadioAltitudeEntity === pfdEntity) {
pfdRadioAltitude = convertToNearest10Foot(Cesium.Cartographic.fromCartesian(updatedPositions[0]).height);
}
});
}
}
}
}
</script>
</body>
</html>