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cy3.js
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cy3.js
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// Copyright (c) 2013-2024 Sankaranarayanan Viswanathan. All rights reserved.
import { lunar_pole } from "./astro.js";
import { deg_to_rad } from "./astro.js";
import * as THREE from 'three';
import Swiper from 'swiper';
import { TrackballControls } from './third-party/TrackballControls.js';
import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
// orbit and location related data
// constants
var CY3 = "CY3";
var VIKRAM = "VIKRAM";
var LRO = "LRO";
var SUN = "SUN";
var MERCURY = "MERCURY";
var VENUS = "VENUS";
var EARTH = "EARTH";
var MARS = "MARS";
var MOON = "MOON";
var CSS = "CSS";
var ONE_SECOND_MS = 1000;
var ONE_MINUTE_MS = 60*1000;
var KM_PER_AU = 149597870.691;
var DEGREES_PER_RADIAN = 57.2957795;
var DEGREES_PER_CIRCLE = 360.0;
var MILLI_SECONDS_PER_MINUTE = 60000;
var MILLI_SECONDS_PER_HOUR = 3600000;
var GREENWICH_LONGITUDE = 0; // used to be that of Bangalore earlier: 77.5667;
var EARTH_MOON_DISTANCE_MEAN_AU = 0.00257;
var EARTH_RADIUS_KM = 6371;
var EARTH_RADIUS_MAX_KM = 6378.1;
var EARTH_RADIUS_MIN_KM = 6356.8;
var MOON_RADIUS_KM = 1737.4 + 0.52; // TODO jugaad to get Vikram land at 18:04 IST instead of 17:59 IST and keep landing altitude at 0.0 km
var MOON_SOI_RADIUS_KM = 66000;
var EARTH_AXIS_INCLINATION_DEGREES = 23.439279444;
var EARTH_AXIS_INCLINATION_RADS = EARTH_AXIS_INCLINATION_DEGREES * Math.PI / 180.0;
var STEP_DURATION_MS = 1 * MILLI_SECONDS_PER_MINUTE; // update this whenever Orbit JSON time resolution changes
var craftSize = 5; // in pixels
//
// Colors
//
var blackColor = 0x000000; // black
var earthAxisColor = 0xFFFF00; // yellow
var moonAxisColor = 0xFFFF00; // yellow
var moonSOIColor = 0x414141; // charcoal
var northPoleColor = 0xff6347; // tomato
var southPoleColor = 0x6a5acd; // steel blue
var eclipticPlaneColor = 0xFFFFE0; // light yellow
var equatorialPlaneColor = 0xABEBC6; // light green
var primaryLightColor = 0xFFFFFF; // white
var primaryLightIntensity = 2.5;
var ambientLightColor = 0x222222; // soft white
var ambientLightIntensity = 1.5;
var primaryLightColorForCraft = 0xFFFFFF;
var primaryLightIntensityForCraft = 2.5;
var ambientLightColorForCraft = 0x777777;
var ambientLightIntensityForCraft = 1.5;
var planetProperties = {
"CY3": { "id": CY3, "name": "CY3", "color": "#ffa000", "orbitcolor": "#66CCFF", "stroke-width": 1.0, "r": 3.2, "labelOffsetX": -30, "labelOffsetY": -10 },
"VIKRAM": { "id": VIKRAM, "name": "VIKRAM", "color": "#ffe000", "orbitcolor": "#FFFF00", "stroke-width": 1.0, "r": 3.2, "labelOffsetX": +30, "labelOffsetY": +10 },
"LRO": { "id": LRO, "name": "LRO", "color": "#00FF00", "orbitcolor": "#00FF00", "stroke-width": 1.0, "r": 3.2, "labelOffsetX": +30, "labelOffsetY": +10 },
"SUN": { "id": SUN, "name": "Sun", "color": "yellow", "orbitcolor": "yellow", "stroke-width": 1.0, "r": 5, "labelOffsetX": +10, "labelOffsetY": +10 },
"MERCURY": { "id": MERCURY, "name": "Mercury", "color": "green", "orbitcolor": "green", "stroke-width": 1.0, "r": 5, "labelOffsetX": +10, "labelOffsetY": +10 },
"VENUS": { "id": VENUS, "name": "Venus", "color": "grey", "orbitcolor": "grey", "stroke-width": 1.0, "r": 5, "labelOffsetX": +10, "labelOffsetY": +10 },
"EARTH": { "id": EARTH, "name": "Earth", "color": "blue", "orbitcolor": "blue", "stroke-width": 1.0, "r": 5, "labelOffsetX": +10, "labelOffsetY": +10 },
"MARS": { "id": MARS, "name": "Mars", "color": "red", "orbitcolor": "red", "stroke-width": 0.3, "r": 5, "labelOffsetX": +10, "labelOffsetY": +10 },
"MOON": { "id": MOON, "name": "Moon", "color": "lightgrey", "orbitcolor": "grey", "stroke-width": 1.0, "r": 3, "labelOffsetX": +10, "labelOffsetY": +10 },
"CSS": { "id": CSS, "name": "Siding Spring", "color": "cyan", "orbitcolor": "cyan", "stroke-width": 1.0, "r": 3, "labelOffsetX": +10, "labelOffsetY": +10 },
};
var CENTER_LABEL_OFFSET_X = -5;
var CENTER_LABEL_OFFSET_Y = -15;
var SPEED_CHANGE_FACTOR = 2;
var ZOOM_SCALE = 1.10;
var ZOOM_TIMEOUT = 200; // TODO Why did I end up calling this variable this way?
var SVG_ORIGIN_X = 0; // TODO match with CSS value; find a better way
var SVG_ORIGIN_Y = 0; // TODO match with CSS value; find a better way
var FORMAT_PERCENT = d3.format(".0%");
var FORMAT_METRIC = d3.format(" >10,.2f");
//
// General state variables
//
var craftId = "CY3";
var config = "geo";
var missionStartCalled = false;
var orbitDataLoaded = { "geo": false, "lunar": false, "lro": false };
var orbitDataProcessed = { "geo": false, "lunar": false, "lro": false };
var orbitData = {};
var landingDataLoaded = false;
var landingDataProcessed = false;
var landingData = {};
var nOrbitPoints = 0;
var nLandingPoints = 0;
var nOrbitPointsVikram = 0;
var nOrbitPointsLRO = 0;
var progress = 0;
var bannerShown = false;
var stopZoom = false;
var sunLongitude = 0.0;
// animation control
var mouseDown = false;
// defaults for XY plane
var plane = "XY";
var xVariable = "x";
var yVariable = "y";
var zVariable = "z";
var vxVariable = "vx";
var vyVariable = "vy";
var vzVariable = "vz";
var xFactor = 1;
var yFactor = 1;
var zFactor = 1;
//
// Orbit data related variables
//
var craftData = {};
var vikramData = {};
//
// Space related variables (as in Space Time)
//
var PIXELS_PER_AU;
var svgX = 0;
var svgY = 0;
var svgWidth = 0;
var svgHeight = 0;
var offsetx = 0;
var offsety = 0;
var trackWidth;
var earthRadius;
var skyRadius;
var moonRadius;
var svgContainer;
var svgRect;
var viewBoxWidth;
var viewBoxHeight;
var zoomFactor = 1;
var panx = 0;
var pany = 0;
var defaultCameraDistance = 0;
//
// Time related variables
//
var animateLoopCount = 0;
var epochJD;
var epochDate;
var startTime;
var endTime;
var endTimeCY3;
var startTimeVikram;
var endTimeVikram;
var latestEndTime;
var startLandingTime = Date.UTC(2023, 8-1, 23, 12, 13, 51, 0); // 12:13:51 UTC = 12:15:00 TDT
var endLandingTime = Date.UTC(2023, 8-1, 23, 12, 38, 51, 0); // 25 minutes high resolution data
var timelineTotalSteps;
var stepsPerHop;
var stepDurationInMilliSeconds;
var orbitsJsonFileSizeInBytes;
var animDate;
var animTime;
// var timelineIndex = 0;
// var timelineIndexStep = 1;
var animTimeStepMinutes = 1;
var realtimespeed = false;
var prevFrameTime = null;
var curFrameTime = null;
var deltaFrameTime = ONE_MINUTE_MS;
var animationRunning = false;
var stopAnimationFlag = false;
var startLandingFlag = false;
var timeoutHandle;
var timeoutHandleZoom;
var dataLoaded = false;
var ticksPerAnimationStep;
var mousedownTimeout = ZOOM_TIMEOUT;
// Chandrayaan 3 specific times and information
var timeTransLunarInjection;
var timeLunarOrbitInsertion;
var eventInfos = [];
// 3D rendering related variables
var currentDimension = "3D";
var theSceneHandler = null;
export var animationScenes = {};
var joyRideFlag = false;
var landingFlag = false;
var moonPhaseCamera = false;
// View variables
var configGeo = $("#origin-earth").is(":checked");
var configLunar = $("#origin-moon").is(":checked");
var config = configGeo ? "geo" : (configLunar ? "lunar" : "undefined");
var viewOrbit = $("#view-orbit").is(":checked");
var viewOrbitDescent = $("#view-orbit-descent").is(":checked");
var viewOrbitVikram = $("#view-orbit-vikram").is(":checked");
var viewOrbitLRO = $("#view-orbit-lro").is(":checked");
var viewCraters = $("#view-craters").is(":checked");
var viewXYZAxes = $("#view-xyz-axes").is(":checked");
var viewPoles = $("#view-poles").is(":checked");
var viewPolarAxes = $("#view-polar-axes").is(":checked");
var viewSky = $("#view-sky").is(":checked");
var viewMoonSOI = $("#view-moonsoi").is(":checked");
var viewEclipticPlane = $("#view-eclipticplane").is(":checked");
var viewEquatorialPlane = $("#view-equatorialplane").is(":checked");
let wait = ms => new Promise(resolve => setTimeout(resolve, ms));
let wait10 = () => wait(10);
let wait20 = () => wait(20);
let wait50 = () => wait(50);
async function sleep() { return new Promise(requestAnimationFrame); } // The Promise resolves after the next frame is painted
function fetchJson(url, callback = null, callbackError = null) {
fetch(url, { headers: { 'accept': 'application/json; charset=utf8;' } })
.then(r => { return r.json(); })
.then(r => {
if (callback !== null) callback(r);
})
.catch(err => {
if (callbackError !== null) callbackError(err);
});
};
function getStartAndEndTimes(id) {
// Note: we should keep end times 1 minute (current resolution) less than the last orbit data point time argument
var startTime = Date.UTC(2023, 7-1, 14, 9, 21, 51, 0);
var endTime = Date.UTC(2023, 9-1, 6, 12, 30, 51, 0);
var endTimeCY3 = Date.UTC(2023, 9-1, 6, 12, 30, 51, 0);
var startTimeVikram = Date.UTC(2023, 8-1, 2, 7, 46, 0, 0); // TODO Update
var endTimeVikram = Date.UTC(2023, 8-1, 6, 20, 26, 0, 0); // TODO Update
if (config == "lro") { // TODO Not needed for CY3 mission (at least for now); Will disable in HTML
startTime = Date.UTC(2023, 9-1, 1, 0, 0, 0, 0); // aligned with 5 minute intervals
endTime = Date.UTC(2023, 11-1, 1, 0, 0, 0, 0); // aligned with 5 minute intervals
startTimeVikram = Date.UTC(2023, 9-1, 2, 7, 50, 0, 0); // aligned with 5 minute intervals
endTimeVikram = Date.UTC(2023, 9-1, 6, 20, 25, 0, 0); // aligned with 5 minute intervals
}
if (id === "CY3") {
return [startTime, endTimeCY3];
} else if (id === "VIKRAM") {
return [startTimeVikram, endTimeVikram];
} else {
return [startTime, endTime];
}
}
class SceneHandler {
constructor() {
// console.log("SceneHandler ctor called");
this.scene = null;
this.renderer = null;
this.canvasNode = null;
this.initialized = false;
this.init();
}
init() {
// console.log("SceneHandler init() called");
if (this.initialized) {
return;
}
computeSVGDimensions();
var width = svgWidth;
var height = svgHeight; // - $("#svg-top-baseline").position().top;
// add renderer
this.renderer = new THREE.WebGLRenderer({antialias: true});
this.renderer.outputEncoding = THREE.sRGBEncoding;
this.renderer.setPixelRatio(window.devicePixelRatio);
this.renderer.setSize(width, height);
// this.renderer.domElement.style.display = "none";
// document.body.appendChild(renderer.domElement);
// console.log("Adding rendererer ...");
this.canvasNode = d3.select("#canvas-wrapper")[0][0].appendChild(this.renderer.domElement); // TODO find a better D3 way to do this
// this.canvasNode = d3.select("#canvas-wrapper").node().appendChild(this.renderer.domElement); // TODO find a better D3 way to do this
window.addEventListener('resize', onWindowResize, {passive: false}); // TODO verify
$("#settings-panel-button").on("click", function() {
$("#settings-panel").dialog({
dialogClass: "dialog",
modal: false,
position: {
my: "left top",
at: "left bottom",
of: "#svg-top-baseline",
collision: "fit flip"},
title: "Settings",
closeOnEscape: false
}).dialogExtend({
closable: true,
minimizable: false,
collapsable: false,
})/* .dialogExtend("collapse") */;
$("#settings-panel")
.closest('.ui-dialog')
// .addClass("transparent-panel")
.css({'background-image': 'none', 'border': '0', 'max-width': '80%', 'z-index': '9999'});
});
this.initialized = true;
}
render(animationScene) {
// console.log("SceneHandler.render() called");
if (animationScene.initialized3D) {
if (moonPhaseCamera) {
animationScene.camera.lookAt(animationScene.secondaryBody3D.position);
}
if (animationScene.lockOnEarth || animationScene.lockOnMoon) {
var x = animationScene.secondaryBody3D.position.x;
var y = animationScene.secondaryBody3D.position.y;
var z = animationScene.secondaryBody3D.position.z;
animationScene.motherContainer.position.set(-x, -y, -z);
// animationScene.camera.lookAt(animationScene.secondaryBody3D.position);
} else if (animationScene.lockOnCY3) {
var x = animationScene.craft.position.x;
var y = animationScene.craft.position.y;
var z = animationScene.craft.position.z;
animationScene.motherContainer.position.set(-x, -y, -z);
// animationScene.camera.lookAt(animationScene.craft.position);
} else {
animationScene.motherContainer.position.set(0, 0, 0);
}
if (joyRideFlag || landingFlag) {
var craftEarthDistance = animationScene.craft.position.distanceTo(animationScene.earthContainer.position);
var craftMoonDistance = animationScene.craft.position.distanceTo(animationScene.moonContainer.position);
var earthAngleRads = Math.asin(earthRadius / craftEarthDistance);
var moonAngleRads = Math.asin(moonRadius / craftMoonDistance);
// console.log("earthAngleRads = " + earthAngleRads + ", moonAngleRads = " + moonAngleRads);
// console.log("craftEarthDistance = " + craftEarthDistance + ", craftMoonDistance = " + craftMoonDistance + ", moonRadius = " + moonRadius);
var closerBody;
var closerAngleRads;
var radius;
var distance;
if (craftEarthDistance < craftMoonDistance) {
closerBody = animationScene.earthContainer;
closerAngleRads = earthAngleRads;
distance = craftEarthDistance;
radius = earthRadius;
animationScene.craftCamera.up.set(0, 0, 1);
animationScene.droneCamera.up.set(0, 1, 0);
} else {
closerBody = animationScene.moonContainer;
closerAngleRads = moonAngleRads;
distance = craftMoonDistance;
radius = moonRadius;
animationScene.craftCamera.up.set(1, 0, 0);
animationScene.droneCamera.up.set(1, 0, 0);
}
// var v1 = new THREE.Vector3();
// var v2 = new THREE.Vector3();
// v1.subVectors(closerBody.position, animationScene.craft.position).normalize();
// v2.subVectors(animationScene.curve[timelineIndex+1], animationScene.craft.position).normalize();
// v2.add(v1);
// v2.add(animationScene.craft.position);
// var theta = Math.acos(radius/distance);
animationScene.craftCamera.lookAt(closerBody.position);
animationScene.droneCamera.lookAt(animationScene.craft.position);
var specialCamera = joyRideFlag ? animationScene.craftCamera : animationScene.droneCamera;
this.renderer.autoClear = true;
specialCamera.layers.set(0);
this.renderer.render(animationScene.scene, specialCamera);
this.renderer.autoClear = false;
specialCamera.layers.set(1);
this.renderer.render(animationScene.scene, specialCamera);
} else {
this.renderer.autoClear = true;
animationScene.camera.layers.set(0);
this.renderer.render(animationScene.scene, animationScene.camera);
this.renderer.autoClear = false;
animationScene.camera.layers.set(1);
this.renderer.render(animationScene.scene, animationScene.camera);
}
}
}
}
function updateCraftScale() {
if (animationScenes[config] && animationScenes[config].initialized3D) {
// var origin = new THREE.Vector3(0, 0, 0);
// var target = new THREE.Vector3();
// var craftLocation = animationScenes[config].craft.getWorldPosition(target);
// var distance = animationScenes[config].cameraControls.getWorldPos().distanceTo(craftLocation);
// var scale = distance / defaultCameraDistance;
var craftLocation = new THREE.Vector3();
animationScenes[config].craft.getWorldPosition(craftLocation);
var cameraLocation = new THREE.Vector3();
if (joyRideFlag) {
animationScenes[config].camera.getWorldPosition(cameraLocation); // not craftCamera
} else if (landingFlag) {
animationScenes[config].droneCamera.getWorldPosition(cameraLocation);
} else {
animationScenes[config].camera.getWorldPosition(cameraLocation);
}
var distance = cameraLocation.distanceTo(craftLocation);
var scale = distance / defaultCameraDistance;
if (landingFlag) { scale = scale * 5; }
// console.log(`Setting scale to ${scale}`); // TODO seems to be buggy
animationScenes[config].craft.scale.set(scale, scale, scale);
animationScenes[config].drone.scale.set(scale, scale, scale);
// animationScenes[config].vikramCraft.scale.set(scale, scale, scale); // we'll use the same scale for Vikram too
// animationScenes[config].craft.scale.set(10, 10, 10);
if (isLocationAvaialable("CY3", animTime)) {
// console.log(`CY3 location avaialble: setting CY3 visibility to ${animationScenes[config].craftVisible}`);
animationScenes[config].craft.visible = animationScenes[config].craftVisible;
animationScenes[config].drone.visible = false;
} else {
// console.log(`CY3 location NOT avaialble: setting CY3 visibility to false`);
animationScenes[config].craft.visible = false;
animationScenes[config].drone.visible = false;
}
// if (isLocationAvaialable("VIKRAM", animTime)) {
// console.log(`Vikram location avaialble: setting Vikram visibility to ${animationScenes[config].vikramCraftVisible}`);
// animationScenes[config].vikramCraft.visible = animationScenes[config].vikramCraftVisible;
// } else {
// console.log(`Vikram location NOT avaialble: setting Vikram visibility to false`);
// animationScenes[config].vikramCraft.visible = false;
// }
if (config == "lro") {
animationScenes[config].lroCraft.scale.set(scale, scale, scale); // we'll use the same scale for LRO too
if (isLocationAvaialable("LRO", animTime)) {
animationScenes[config].lroCraft.visible = animationScenes[config].lroCraftVisible;
} else {
animationScenes[config].lroCraft.visible = false;
}
}
}
}
function cameraControlsCallback() {
// console.log("cameraControlsCallback() called");
updateCraftScale();
}
// Based on https://stackoverflow.com/a/32038265
THREE.Object3D.prototype.rotateAroundWorldAxis = function() {
// rotate object around axis in world space (the axis passes through point)
// axis is assumed to be normalized
// assumes object does not have a rotated parent
var q = new THREE.Quaternion();
return function rotateAroundWorldAxis( point, axis, angle ) {
q.setFromAxisAngle( axis, angle );
this.applyQuaternion( q );
this.position.sub( point );
this.position.applyQuaternion( q );
this.position.add( point );
return this;
}
}();
class AnimationScene {
static SCENE_STATE_START = 0;
static SCENE_STATE_INIT_CONFIG_DONE = 1;
static SCENE_STATE_INIT_DONE = 2;
static SCENE_STATE_ADD_CURVE_DONE = 3;
constructor(name) {
// console.log("AnimationScene ctor called for " + name);
this.name = name;
this.orbits = {};
this.initialized3D = false;
this.earth = null;
this.earthContainer = null;
this.earthAxis = null;
this.earthGlow = null;
this.moon = null;
this.moonAxisRotationAngle = 0;
this.primaryBody3D = null;
this.secondaryBody3D = null;
this.craft = null;
this.camera = null;
this.cameraControlsEnabled = true;
this.cameraControls = null;
this.scene = null;
this.renderer = null;
this.curve = [];
this.landingCurve = [];
this.vikramCurve = [];
this.lroCurve = [];
this.curveVelocities = [];
this.landingCurveVelocities = [];
this.locations = [];
this.stopCreationFlag = false;
this.state = AnimationScene.SCENE_STATE_START;
}
stopCreation() {
this.stopCreationFlag = true;
}
setCameraPosition(x, y, z) {
// console.log(`Setting camera position to (${x}, ${y}, ${z}).`);
this.camera.position.x = x;
this.camera.position.y = y;
this.camera.position.z = z;
this.skyContainer.position.setFromMatrixPosition(this.camera.matrixWorld);
this.camera.updateProjectionMatrix();
if (this.cameraControls) { this.cameraControls.update(); cameraControlsCallback(); }
}
init3d(callback) {
if (this.initialized3D) {
return;
}
var scene = this;
const getTextures = ()=> new Promise((resolve, reject)=>{
const loader = new THREE.TextureLoader();
THREE.DefaultLoadingManager.onLoad = ()=>resolve(textures);
const textures = [
"images/earth/2_no_clouds_8k.jpg",
"images/earth/earthspec1k.jpg",
// "images/moon/lroc_color_poles_4k.png",
"images/moon/Solarsystemscope_texture_8k_moon.jpg",
"images/moon/ldem_16_gsfc.png",
"images/sky/starmap_4k.jpg",
"images/sky/constellation_figures.jpg",
].map(filename=>loader.load(filename));
});
getTextures().then(async result=>{
// console.log("Loaded textures: ", result);
var mapIndex = 0;
scene.earthTexture = result[mapIndex++];
scene.earthTexture.minFilter = THREE.LinearFilter;
scene.earthSpecularTexture = result[mapIndex++];
scene.earthSpecularTexture.minFilter = THREE.LinearFilter;
scene.moonMap = result[mapIndex++];
scene.moonMap.minFilter = THREE.LinearFilter;
scene.moonDisplacementMap = result[mapIndex++];
scene.moonDisplacementMap.minFilter = THREE.LinearFilter;
scene.skyTexture = result[mapIndex++];
scene.skyTexture.minFilter = THREE.LinearFilter;
// scene.skyTexture.flipY = false;
scene.skyConstellationTexture = result[mapIndex++];
scene.skyConstellationTexture.minFilter = THREE.LinearFilter;
// scene.skyConstellationTexture.flipY = false;
scene.init3dRest(); // We can't call callback until we are done
callback();
}, (error) => {
console.log("Error: couldn't load textures: " + erorr);
});
// var loader = new THREE.TextureLoader();
// // console.log("Loading texture ...");
// loader.load(
// 'images/2_no_clouds_8k.jpg',
// function(texture) {
// // console.log("Loaded texture.");
// scene.earthTexture = texture;
// await scene.init3dRest();
// callback();
// });
/* DON'T PUT ANY CODE HERE */
}
computeDimensions() {
computeSVGDimensions();
this.width = svgWidth;
this.height = svgHeight;
}
async addCurve() {
var scene = this;
// [0 .. 420) => [320 .. 420), [220 .. 320), [120 .. 220), [20 .. 120), [0, 20)
scene.startingIndex = scene.leftOrbitPoints;
// console.log("addCurve(): startingIndex = " + scene.startingIndex, ", nPoints = " + scene.leftOrbitPoints);
do {
var nPoints = Math.min(scene.leftOrbitPoints, scene.pointsPerSlice);
if (nPoints <= 0) {
break;
} else {
scene.startingIndex -= nPoints;
scene.leftOrbitPoints -= nPoints;
}
var arr = scene.curve.slice(scene.startingIndex, scene.startingIndex + nPoints + 1); // +1 because we want the last point
var curves = new THREE.CatmullRomCurve3(arr);
var orbitGeometry = new THREE.BufferGeometry();
const vertexVectors = curves.getSpacedPoints(nPoints * 40);
const vertices = [];
vertexVectors.forEach(function(elem) { vertices.push(elem.x, elem.y, elem.z); });
orbitGeometry.setAttribute('position', new THREE.Float32BufferAttribute(vertices, 3));
var orbitLine = new THREE.Line(orbitGeometry, scene.orbitMaterial);
orbitLine.visible = viewOrbit;
scene.orbitLines.push(orbitLine);
scene.motherContainer.add(orbitLine);
render();
await wait10();
if (this.stopCreationFlag) {
// console.log("Stopping creation of " + scene.name + " scene");
break;
}
} while (true);
// console.log("addCurve() done for " + scene.name);
this.state = AnimationScene.SCENE_STATE_ADD_CURVE_DONE;
// timeoutHandler();
}
addSky() {
// add Sky
this.skyContainer = new THREE.Group();
this.skyContainer.lookAt(0, Math.sin(EARTH_AXIS_INCLINATION_RADS), Math.cos(EARTH_AXIS_INCLINATION_RADS));
// console.log("Creating Sky...");
skyRadius = 200 * earthRadius;
var skyGeometry = new THREE.SphereGeometry(skyRadius);
var skyMaterial = new THREE.MeshBasicMaterial({ blending: THREE.AdditiveBlending, map: this.skyTexture, opacity: 0.4 });
skyMaterial.side = THREE.BackSide;
var skyConstellationMaterial = new THREE.MeshBasicMaterial({ blending: THREE.AdditiveBlending, map: this.skyConstellationTexture, opacity: 0.1 });
skyConstellationMaterial.side = THREE.BackSide;
this.sky = new THREE.Mesh(skyGeometry, skyMaterial);
this.sky.receiveShadow = false;
this.sky.castShadow = false;
this.sky.rotateX(Math.PI/2); // this is to get the orientation of the texture correct
this.skyContainer.add(this.sky);
this.skyConstellation = new THREE.Mesh(skyGeometry, skyConstellationMaterial);
this.skyConstellation.receiveShadow = false;
this.skyConstellation.castShadow = false;
this.skyConstellation.rotateX(Math.PI/2); // this is to get the orientation of the texture correct
this.skyContainer.add(this.skyConstellation);
this.skyContainer.scale.set(-1, 1, 1);
this.skyContainer.rotateZ(Math.PI);
// console.log("Created Sky");
this.motherContainer.add(this.skyContainer);
render();
}
disposeSky() {
if (this.skyContainer) {
// Dispose of sky geometry
if (this.sky && this.sky.geometry) {
this.sky.geometry.dispose();
}
// Dispose of sky material
if (this.sky && this.sky.material) {
this.sky.material.dispose();
}
// Dispose of sky constellation geometry
if (this.skyConstellation && this.skyConstellation.geometry) {
this.skyConstellation.geometry.dispose();
}
// Dispose of sky constellation material
if (this.skyConstellation && this.skyConstellation.material) {
this.skyConstellation.material.dispose();
}
// Remove sky and sky constellation from skyContainer
if (this.sky) {
this.skyContainer.remove(this.sky);
}
if (this.skyConstellation) {
this.skyContainer.remove(this.skyConstellation);
}
// Remove skyContainer from motherContainer
if (this.motherContainer) {
this.motherContainer.remove(this.skyContainer);
}
// Nullify references
this.sky = null;
this.skyConstellation = null;
this.skyContainer = null;
}
// Dispose of textures
if (this.skyTexture) {
this.skyTexture.dispose();
this.skyTexture = null;
}
if (this.skyConstellationTexture) {
this.skyConstellationTexture.dispose();
this.skyConstellationTexture = null;
}
}
addEarth() {
// add Earth
this.earthContainer = new THREE.Group();
this.earthContainer.lookAt(0, Math.sin(EARTH_AXIS_INCLINATION_RADS), Math.cos(EARTH_AXIS_INCLINATION_RADS));
// console.log("Creating Earth...");
// var earthColor = planetProperties["EARTH"]["color"];
var earthGeometry = new THREE.SphereGeometry(earthRadius, 100, 100);
var earthMaterial = new THREE.MeshPhongMaterial({
// color: primaryBodyColor,
// specular: blackColor,
// shininess: 1,
map: this.earthTexture,
// bumpMap: this.earthBumpMapTexture,
// bumpScale: 0.01,
specularMap: this.earthSpecularTexture, // shininess on oceans
specular: 0x101010,
// side: THREE.DoubleSide
});
this.earth = new THREE.Mesh(earthGeometry, earthMaterial);
this.earth.receiveShadow = false;
this.earth.castShadow = false;
this.earth.rotateX(Math.PI/2); // this is to get the orientation of the texture correct
this.earthContainer.add(this.earth);
// console.log("Created Earth");
// // add Earth glow
// var earthGlowMaterial = THREEx.createAtmosphereMaterial();
// earthGlowMaterial.uniforms.glowColor.value.set(0x00b3ff);
// earthGlowMaterial.uniforms.coeficient.value = 0.8;
// earthGlowMaterial.uniforms.power.value = 2.0;
// this.earthGlow = new THREE.Mesh(earthGeometry, earthGlowMaterial);
// this.earthGlow.scale.multiplyScalar(1.02);
// this.earth.add(this.earthGlow);
// add axes to Earth and Moon
var earthPoleScale = 1.2;
var earthNorthPolePoint = new THREE.Vector3(0, 0, +1 * earthRadius * earthPoleScale);
var earthSouthPolePoint = new THREE.Vector3(0, 0, -1 * earthRadius * earthPoleScale);
var earthAxisGeometry = new THREE.BufferGeometry();
const vertices = [];
vertices.push(earthNorthPolePoint.x, earthNorthPolePoint.y, earthNorthPolePoint.z);
vertices.push(earthSouthPolePoint.x, earthSouthPolePoint.y, earthSouthPolePoint.z);
earthAxisGeometry.setAttribute('position', new THREE.Float32BufferAttribute(vertices, 3));
var earthAxisMaterial = new THREE.LineBasicMaterial({color: earthAxisColor});
this.earthAxis = new THREE.Line(earthAxisGeometry, earthAxisMaterial);
this.earthAxis.visible = viewPolarAxes;
var earthNorthPoleGeometry = new THREE.SphereGeometry(earthRadius/50, 100, 100);
var earthNorthPoleMaterial = new THREE.MeshPhysicalMaterial({color: blackColor, emissive: northPoleColor, reflectivity: 0.0});
this.earthNorthPoleSphere = new THREE.Mesh(earthNorthPoleGeometry, earthNorthPoleMaterial);
this.earthNorthPoleSphere.castShadow = false;
this.earthNorthPoleSphere.receiveShadow = false;
this.earthNorthPoleSphere.position.set(0, 0, 0.985 * earthRadius);
var earthSouthPoleGeometry = new THREE.SphereGeometry(earthRadius/50, 100, 100);
var earthSouthPoleMaterial = new THREE.MeshPhysicalMaterial({color: blackColor, emissive: southPoleColor, reflectivity: 0.0});
this.earthSouthPoleSphere = new THREE.Mesh(earthSouthPoleGeometry, earthSouthPoleMaterial);
this.earthSouthPoleSphere.castShadow = false;
this.earthSouthPoleSphere.receiveShadow = false;
this.earthSouthPoleSphere.position.set(0, 0, -0.985 * earthRadius);
this.earthNorthPoleSphere.visible = viewPoles;
this.earthSouthPoleSphere.visible = viewPoles;
render();
}
disposeEarth() {
if (this.earthContainer) {
// Dispose of Earth geometry
if (this.earth && this.earth.geometry) {
this.earth.geometry.dispose();
}
// Dispose of Earth material
if (this.earth && this.earth.material) {
this.earth.material.dispose();
}
// Dispose of Earth axis geometry
if (this.earthAxis && this.earthAxis.geometry) {
this.earthAxis.geometry.dispose();
}
// Dispose of Earth axis material
if (this.earthAxis && this.earthAxis.material) {
this.earthAxis.material.dispose();
}
// Dispose of Earth North Pole geometry
if (this.earthNorthPoleSphere && this.earthNorthPoleSphere.geometry) {
this.earthNorthPoleSphere.geometry.dispose();
}
// Dispose of Earth North Pole material
if (this.earthNorthPoleSphere && this.earthNorthPoleSphere.material) {
this.earthNorthPoleSphere.material.dispose();
}
// Dispose of Earth South Pole geometry
if (this.earthSouthPoleSphere && this.earthSouthPoleSphere.geometry) {
this.earthSouthPoleSphere.geometry.dispose();
}
// Dispose of Earth South Pole material
if (this.earthSouthPoleSphere && this.earthSouthPoleSphere.material) {
this.earthSouthPoleSphere.material.dispose();
}
// Remove Earth and its components from earthContainer
if (this.earth) {
this.earthContainer.remove(this.earth);
}
if (this.earthAxis) {
this.earthContainer.remove(this.earthAxis);
}
if (this.earthNorthPoleSphere) {
this.earthContainer.remove(this.earthNorthPoleSphere);
}
if (this.earthSouthPoleSphere) {
this.earthContainer.remove(this.earthSouthPoleSphere);
}
// Remove earthContainer from its parent (if it has one)
if (this.earthContainer.parent) {
this.earthContainer.parent.remove(this.earthContainer);
}
// Nullify references
this.earth = null;
this.earthAxis = null;
this.earthNorthPoleSphere = null;
this.earthSouthPoleSphere = null;
this.earthContainer = null;
}
// Dispose of textures
if (this.earthTexture) {
this.earthTexture.dispose();
this.earthTexture = null;
}
if (this.earthSpecularTexture) {
this.earthSpecularTexture.dispose();
this.earthSpecularTexture = null;
}
}
addMoon() {
// add Moon
// var today = new Date();
// var today = eventInfos[0]["startTime"];
// var lp = lunar_pole(today);
// var alpha = lp["alpha"];
// var delta = lp["delta"];
// var long = lp["long"];
// var lat = lp["lat"];
// var W = lp["W"];
// console.log(`Lunar NP: (long, lat) = (${rad_to_deg(long)}, ${rad_to_deg(lat)}), W = ${rad_to_deg(W)}`);
// var npx = moonRadius * Math.cos(lat) * Math.cos(long);
// var npy = moonRadius * Math.cos(lat) * Math.sin(long);
// var npz = moonRadius * Math.sin(lat);
// Stellarium rotation code for reference:
// https://github.com/Stellarium/stellarium/blob/22218a4b3f9c17d10208278594ac9e83912c726c/src/core/modules/Planet.cpp
//
// this.moonContainer.rotateZ(Math.PI / 2 + alpha);
// this.moonContainer.rotateX(Math.PI / 2 - delta);
// this.moonContainer.rotateX(-1 * EARTH_AXIS_INCLINATION_RADS);
// OR
// this.moonContainer.rotateZ(Math.PI / 2 + long);
// this.moonContainer.rotateX(Math.PI / 2 - lat);
// OR
// this.moonContainer.rotation.z = Math.PI / 2 + long
// this.moonContainer.rotation.x = Math.PI / 2 - lat;
// OR
// this.moonContainer.lookAt(npx, npy, npz);
var moonColor = planetProperties["MOON"]["color"];
var moonGeometry = new THREE.SphereGeometry(moonRadius, 100, 100);
var moonMaterial = new THREE.MeshStandardMaterial({