├── solar_system ├── events.js ├── main.css ├── index.html ├── data.js └── main.js ├── images ├── mts.jpg ├── clouds_2.jpg ├── gas_giant.jpg ├── moonmap1k.jpg ├── venusbump.jpg ├── earthbump1k.jpg ├── earthmap1k.jpg ├── earthspec1k.jpg ├── marsbump1k.jpg ├── mercurybump.jpg ├── moon_texture.jpg ├── moonbump1k.jpg ├── plutobump1k.jpg ├── earthcloudmap.jpg ├── earth_texture_2.jpg ├── galaxy_starfield.png ├── saturnringcolor.jpg ├── saturnringpattern.gif ├── uranusringcolour.jpg ├── uranusringtrans.gif └── earthcloudmaptrans.jpg ├── textures ├── mars_texture.jpg ├── sun_texture.jpg ├── earth_texture.jpg ├── jupiter_texture.jpg ├── mercury_texture.jpg ├── neptune_texture.jpg ├── pluto_texture.jpg ├── saturn_texture.jpg ├── uranus_texture.jpg └── venus_texture.jpg ├── README.md ├── examples ├── earth-basic.html ├── lightning.html ├── gas-giant-with-rings.html └── earth-moon-system-dynamic.html └── lib ├── orbit_controls.js └── jQuery.min.js /solar_system/events.js: 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-------------------------------------------------------------------------------- /images/earthcloudmaptrans.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/MattLoftus/threejs-space-simulations/HEAD/images/earthcloudmaptrans.jpg -------------------------------------------------------------------------------- /solar_system/main.css: -------------------------------------------------------------------------------- 1 | html { 2 | background-color: black; 3 | position: relative; 4 | height: 100vh; 5 | width: 100vw; 6 | font-family: 'Lato', 'Roboto Condensed', 'Ubuntu', 'Roboto Slab', 'Droid Serif', 'Crimson Text', Trebuchet, sans-serif; 7 | font-size: 20px; 8 | font-weight: 300; 9 | color: #b3ebff; 10 | } 11 | 12 | h1, 13 | h2, 14 | h3, 15 | h4, 16 | h5, 17 | ul, 18 | li { 19 | margin: 0; 20 | padding: 0; 21 | font-weight: 300; 22 | } 23 | 24 | ul { 25 | list-style: none; 26 | margin: 0; 27 | margin-left: 1rem; 28 | padding: 0; 29 | } 30 | 31 | ul li { 32 | color: #b3ebff; 33 | border-bottom: 1px solid #CFC2C2; 34 | margin-bottom: 1rem; 35 | } 36 | 37 | button { 38 | height: 30px; 39 | width: 100px; 40 | border: 0; 41 | font-size: 16px; 42 | } 43 | 44 | button:hover { 45 | cursor: pointer; 46 | background-color: black; 47 | color: white; 48 | border: 1px solid white; 49 | } 50 | 51 | .sidebar { 52 | position: fixed; 53 | top: 10px; 54 | left: 10px; 55 | z-index: 2; 56 | } 57 | -------------------------------------------------------------------------------- /solar_system/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Solar System 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
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24 | 25 | 26 | 27 | 28 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | This repository is a collection of recent experiments I've been working on in three.js. 2 | 3 | Three.js is a JavaScript library built on top of the WebGL graphics language. WebGL is a low level, verbose language used to create graphics in the browser that can be both very performant and very hard to use. Three.js greatly reduces the amount of boilerplate code you have to write to build rich 3D graphics, and wraps common operations into intuitive constructor functions. If you're interested in learning three.js, I recently completed two new tutorials on getting started with the three.js library. You can find them at [loftus.xyz](http://loftus.xyz) 4 | 5 | You will find the different simulations in this repo in the examples folder. To develop and test out the simulations locally, first clone the repo down to your local machine. 6 | 7 | ``` 8 | git clone https://github.com/MattLoftus/threejs-space-simulations.git 9 | ``` 10 | 11 | To avoid cross-origin errors when using textures(every example in this repo), you will need to host the files on a local server. I recommend using python simple server or npm live server. First navigate to the root of the directory, then run the following command. 12 | 13 | ``` 14 | python -m SimpleHTTPServer 15 | ``` 16 | 17 | This will host the folder on port 8000, so you can head over to the browser and type "localhost:8000" into the address bar, and you will see a listing for the directory. If you happen to have a version of python on your machine >= 3.0, you may need to run the following command instead. 18 | 19 | ``` 20 | python2.7 -m SimpleHTTPServer 21 | ``` 22 | 23 | -------------------------------------------------------------------------------- /examples/earth-basic.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | Spheres 4 | 8 | 9 | 10 | 11 | 61 | 62 | -------------------------------------------------------------------------------- /solar_system/data.js: -------------------------------------------------------------------------------- 1 | var planets = [ 2 | { 3 | "name" : "mercury", 4 | "distance_KM" : 57910000, 5 | "distance_AU": 0.387, 6 | "diameter" : 4800, 7 | "period_days" : 88, 8 | "rotation_days" : 59, 9 | "inclination" : 7 10 | }, 11 | { 12 | "name" : "venus", 13 | "distance_KM" : 108200000, 14 | "distance_AU" : 0.732, 15 | "diameter" : 12100, 16 | "period_days" : 225, 17 | "rotation_days" : 243, 18 | "inclination" : 3.9 19 | }, 20 | { 21 | "name": "earth", 22 | "distance_KM" : 149600000, 23 | "dustance_AU" : 1, 24 | "diameter" : 12750, 25 | "period_days" : 365, 26 | "rotation_days" : 1, 27 | "inclination" : 0 28 | }, 29 | { 30 | "name" : "mars", 31 | "distance_KM" : 227940000, 32 | "distance_AU" : 1.524, 33 | "diameter" : 6800, 34 | "period_days" : 697, 35 | "rotation_days" : 1.017, 36 | "inclination" : 1.85 37 | }, 38 | { 39 | "name" : "jupiter", 40 | "distance_KM" : 778330000, 41 | "distance_AU" : 5.203, 42 | "diameter" : 142800, 43 | "period_days" : 4234, 44 | "rotation_days" : 0.417, 45 | "inclination" : 1.3 46 | }, 47 | { 48 | "name" : "saturn", 49 | "distance_KM" : 1424600000, 50 | "distance_AU" : 9.523, 51 | "diameter" : 120660, 52 | "period_days" : 10752.9, 53 | "rotation_days" : 0.433, 54 | "inclination" : 2.49 55 | }, 56 | { 57 | "name" : "uranus", 58 | "distance_KM" : 2873550000, 59 | "distance_AU" : 19.208, 60 | "diameter" : 51800, 61 | "period_days" : 30660, 62 | "rotation_days" : 0.708, 63 | "inclination" : 0.77 64 | }, 65 | { 66 | "name" : "neptune", 67 | "distance_KM" : 4501000000, 68 | "distance_AU" : 30.087, 69 | "diameter" : 49500, 70 | "period_days" : 60225, 71 | "rotation_days" : 0.833, 72 | "inclination" : 1.77 73 | }, 74 | { 75 | "name" : "pluto", 76 | "distance_KM" : 5945900000, 77 | "distance_AU" : 39.746, 78 | "diameter" : 3300, 79 | "period_days" : 90520, 80 | "rotation_days" : 6.4, 81 | "inclination" : 17.2 82 | } 83 | ]; 84 | -------------------------------------------------------------------------------- /examples/lightning.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | Spheres 4 | 8 | 9 | 10 | 11 | 12 | 112 | 113 | -------------------------------------------------------------------------------- /examples/gas-giant-with-rings.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | Spheres 4 | 8 | 9 | 10 | 11 | 12 | 13 | 108 | 109 | -------------------------------------------------------------------------------- /examples/earth-moon-system-dynamic.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | Spheres 4 | 8 | 9 | 10 | 11 | 12 | 122 | 123 | -------------------------------------------------------------------------------- /solar_system/main.js: -------------------------------------------------------------------------------- 1 | //Create a function that will construct a solar 2 | //system with three.js using an input data set 3 | var SolarSystem = function(data) { 4 | this.planet_data = data 5 | this.tScale = 1000000; 6 | this.eScale = 1; 7 | }; 8 | 9 | SolarSystem.prototype.getDistance = function (A, B) { 10 | return Math.sqrt(Math.pow(A[0] - B[0], 2) + Math.pow(A[1] - B[1], 2) + Math.pow(A[2] - B[2], 2)); 11 | } 12 | 13 | SolarSystem.prototype.render3D = function() { 14 | 15 | //Camera, scene, and renderer 16 | var scene = new THREE.Scene(); 17 | var camera = new THREE.PerspectiveCamera(45, window.innerWidth/window.innerHeight, 1, 2000); 18 | scene.add(camera); 19 | camera.position.set(0,100,500); 20 | 21 | var renderer = new THREE.WebGLRenderer({antialias: true}); 22 | renderer.setSize(window.innerWidth, window.innerHeight); 23 | document.body.appendChild(renderer.domElement); 24 | 25 | //Orbit Controls 26 | var orbitControls = new THREE.OrbitControls(camera, renderer.domElement); 27 | 28 | //Lights 29 | var light = new THREE.HemisphereLight( 0xffffbb, 0x080820, .3 ); 30 | scene.add(light); 31 | 32 | var sunLight = new THREE.PointLight(0xffffff); 33 | sunLight.position.set(0,0,0); 34 | scene.add(sunLight); 35 | 36 | //Adding the sun 37 | var sunGeometry = new THREE.SphereGeometry(1, 50, 50); 38 | var sunMaterial = new THREE.MeshPhongMaterial({ 39 | map: new THREE.ImageUtils.loadTexture("../textures/sun_texture.jpg"), 40 | color: 0xf2e8b7, 41 | emissive: 0x91917b, 42 | specular: 0x777d4a, 43 | shininess: 62, 44 | envMaps: "refraction" 45 | }); 46 | var sunObject = new THREE.Mesh(sunGeometry, sunMaterial); 47 | scene.add(sunObject); 48 | 49 | //Adding a starfield 50 | var starGeometry = new THREE.SphereGeometry(window.innerHeight, 100, 100); 51 | var starMaterial = new THREE.MeshPhongMaterial({ 52 | map: new THREE.ImageUtils.loadTexture("../images/galaxy_starfield.png"), 53 | side: THREE.DoubleSide, 54 | shininess: 5 55 | }); 56 | var starField = new THREE.Mesh(starGeometry, starMaterial); 57 | scene.add(starField); 58 | 59 | // Scale of the earth, use to get screen coordinates 60 | // Time scale, and days to seconds conversion 61 | var eScale = (1 / 510) * 0.00002; 62 | var secInDay = 87600 63 | var ctx = this; 64 | 65 | //Initialize and keep track of current angle of planets 66 | var planets = []; 67 | this.planet_data.forEach(function (planet) { 68 | planets.push({ 69 | "name" : planet.name, 70 | "theta" : 0, 71 | "dTheta" : (2 * Math.PI) / (planet.period_days * secInDay), 72 | "diameter" : planet.diameter * eScale * 1000, 73 | "distance_KM" : planet.distance_KM * eScale, 74 | "period" : planet.period * this.tScale, 75 | "inclination" : planet.inclination * (Math.PI / 180), 76 | "rotation" : (2 * Math.PI) / (planet.rotation_days * secInDay) 77 | }); 78 | }); 79 | 80 | //Draw planetary trajectories in the scene. These will be fixed 81 | var trajectories = {}; 82 | planets.forEach(function (planet) { 83 | 84 | var targetMaterial = new THREE.LineDashedMaterial({ 85 | color: 0xfffff, 86 | transparent: true, 87 | opacity: .4, 88 | dashSize: 5, 89 | gapSize: 5 90 | }); 91 | var targetOrbit = new THREE.EllipseCurve( 92 | 0,0, 93 | planet.distance_KM, planet.distance_KM, 94 | 0, 2.0 * Math.PI, 95 | false); 96 | var targetPath = new THREE.CurvePath(targetOrbit.getPoints(1000)); 97 | targetPath.add(targetOrbit); 98 | var targetGeometry = targetPath.createPointsGeometry(100); 99 | 100 | var targetTrajectory = new THREE.Line(targetGeometry, targetMaterial); 101 | targetTrajectory.rotation.x = Math.PI / 2; 102 | targetTrajectory.rotation.x += planet.inclination; 103 | scene.add( targetTrajectory ); 104 | trajectories[planet.name] = targetTrajectory; 105 | }); 106 | 107 | //Create planets and add to the scene 108 | var planetObjects = {}; 109 | planets.forEach(function (planet) { 110 | if (planet.name === "pluto") {planet.diameter *= 10} 111 | var planetGeometry = new THREE.SphereGeometry(planet.diameter, 50, 50); 112 | var planetMaterial = new THREE.MeshPhongMaterial({ 113 | map: THREE.ImageUtils.loadTexture("../textures/" + planet.name + "_texture.jpg"), 114 | color: 0xf2f2f2, 115 | specular: 0xbbbbbb, 116 | shininess: 2 117 | }); 118 | 119 | var planetMesh = new THREE.Mesh(planetGeometry, planetMaterial); 120 | planetMesh.position.x = planet.distance_KM; 121 | scene.add( planetMesh ); 122 | planetObjects[planet.name] = planetMesh; 123 | }); 124 | console.log(planetObjects["earth"].position); 125 | 126 | var t1 = Date.now() / 1000; 127 | 128 | var render = function() { 129 | // get current time and time differnce 130 | var t2 = Date.now() / 1000; 131 | var dT = (t2 - t1) * ctx.tScale; 132 | t1 = t2; 133 | 134 | planets.forEach(function (planet) { 135 | planetObjects[planet.name].rotation.y += planet.rotation * 10; 136 | var dTheta = planet.dTheta * dT; 137 | planet.theta += dTheta; 138 | var phi = planet.inclination * Math.sin(planet.theta); 139 | 140 | if (planet.name === "earth") { 141 | console.log(phi, planet.theta); 142 | } 143 | 144 | //Determine x,y, and z coordinates of planets based off theta + phi 145 | planetObjects[planet.name].position.z = planet.distance_KM * Math.sin(planet.theta) 146 | * ctx.eScale; 147 | planetObjects[planet.name].position.x = planet.distance_KM * Math.cos(planet.theta) 148 | * ctx.eScale; 149 | planetObjects[planet.name].position.y = - planet.distance_KM * Math.cos((Math.PI / 2) - phi) * ctx.eScale; 150 | }); 151 | 152 | renderer.render(scene, camera); 153 | requestAnimationFrame( render ); 154 | } 155 | render(); 156 | 157 | 158 | } 159 | 160 | 161 | var solarSystem = new SolarSystem(planets); 162 | solarSystem.render3D(); 163 | 164 | 165 | //Listen for button click events to change the time scale 166 | $(".timescale button").click(function (event) { 167 | if (event.target.classList[0] === "increase") { 168 | solarSystem.tScale *= 2; 169 | } else { 170 | solarSystem.tScale *= 0.5; 171 | } 172 | 173 | //Change timescale display 174 | $(".timescale span").html(solarSystem.tScale); 175 | }); 176 | 177 | 178 | 179 | 180 | -------------------------------------------------------------------------------- /lib/orbit_controls.js: -------------------------------------------------------------------------------- 1 | /** 2 | * @author qiao / https://github.com/qiao 3 | * @author mrdoob / http://mrdoob.com 4 | * @author alteredq / http://alteredqualia.com/ 5 | * @author WestLangley / http://github.com/WestLangley 6 | * @author erich666 / http://erichaines.com 7 | */ 8 | /*global THREE, console */ 9 | 10 | ( function () { 11 | 12 | function OrbitConstraint ( object ) { 13 | 14 | this.object = object; 15 | 16 | // "target" sets the location of focus, where the object orbits around 17 | // and where it pans with respect to. 18 | this.target = new THREE.Vector3(); 19 | 20 | // Limits to how far you can dolly in and out ( PerspectiveCamera only ) 21 | this.minDistance = 0; 22 | this.maxDistance = Infinity; 23 | 24 | // Limits to how far you can zoom in and out ( OrthographicCamera only ) 25 | this.minZoom = 0; 26 | this.maxZoom = Infinity; 27 | 28 | // How far you can orbit vertically, upper and lower limits. 29 | // Range is 0 to Math.PI radians. 30 | this.minPolarAngle = 0; // radians 31 | this.maxPolarAngle = Math.PI; // radians 32 | 33 | // How far you can orbit horizontally, upper and lower limits. 34 | // If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ]. 35 | this.minAzimuthAngle = - Infinity; // radians 36 | this.maxAzimuthAngle = Infinity; // radians 37 | 38 | // Set to true to enable damping (inertia) 39 | // If damping is enabled, you must call controls.update() in your animation loop 40 | this.enableDamping = false; 41 | this.dampingFactor = 0.25; 42 | 43 | //////////// 44 | // internals 45 | 46 | var scope = this; 47 | 48 | var EPS = 0.000001; 49 | 50 | // Current position in spherical coordinate system. 51 | var theta; 52 | var phi; 53 | 54 | // Pending changes 55 | var phiDelta = 0; 56 | var thetaDelta = 0; 57 | var scale = 1; 58 | var panOffset = new THREE.Vector3(); 59 | var zoomChanged = false; 60 | 61 | // API 62 | 63 | this.getPolarAngle = function () { 64 | 65 | return phi; 66 | 67 | }; 68 | 69 | this.getAzimuthalAngle = function () { 70 | 71 | return theta; 72 | 73 | }; 74 | 75 | this.rotateLeft = function ( angle ) { 76 | 77 | thetaDelta -= angle; 78 | 79 | }; 80 | 81 | this.rotateUp = function ( angle ) { 82 | 83 | phiDelta -= angle; 84 | 85 | }; 86 | 87 | // pass in distance in world space to move left 88 | this.panLeft = function() { 89 | 90 | var v = new THREE.Vector3(); 91 | 92 | return function panLeft ( distance ) { 93 | 94 | var te = this.object.matrix.elements; 95 | 96 | // get X column of matrix 97 | v.set( te[ 0 ], te[ 1 ], te[ 2 ] ); 98 | v.multiplyScalar( - distance ); 99 | 100 | panOffset.add( v ); 101 | 102 | }; 103 | 104 | }(); 105 | 106 | // pass in distance in world space to move up 107 | this.panUp = function() { 108 | 109 | var v = new THREE.Vector3(); 110 | 111 | return function panUp ( distance ) { 112 | 113 | var te = this.object.matrix.elements; 114 | 115 | // get Y column of matrix 116 | v.set( te[ 4 ], te[ 5 ], te[ 6 ] ); 117 | v.multiplyScalar( distance ); 118 | 119 | panOffset.add( v ); 120 | 121 | }; 122 | 123 | }(); 124 | 125 | // pass in x,y of change desired in pixel space, 126 | // right and down are positive 127 | this.pan = function ( deltaX, deltaY, screenWidth, screenHeight ) { 128 | 129 | if ( scope.object instanceof THREE.PerspectiveCamera ) { 130 | 131 | // perspective 132 | var position = scope.object.position; 133 | var offset = position.clone().sub( scope.target ); 134 | var targetDistance = offset.length(); 135 | 136 | // half of the fov is center to top of screen 137 | targetDistance *= Math.tan( ( scope.object.fov / 2 ) * Math.PI / 180.0 ); 138 | 139 | // we actually don't use screenWidth, since perspective camera is fixed to screen height 140 | scope.panLeft( 2 * deltaX * targetDistance / screenHeight ); 141 | scope.panUp( 2 * deltaY * targetDistance / screenHeight ); 142 | 143 | } else if ( scope.object instanceof THREE.OrthographicCamera ) { 144 | 145 | // orthographic 146 | scope.panLeft( deltaX * ( scope.object.right - scope.object.left ) / screenWidth ); 147 | scope.panUp( deltaY * ( scope.object.top - scope.object.bottom ) / screenHeight ); 148 | 149 | } else { 150 | 151 | // camera neither orthographic or perspective 152 | console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.' ); 153 | 154 | } 155 | 156 | }; 157 | 158 | this.dollyIn = function ( dollyScale ) { 159 | 160 | if ( scope.object instanceof THREE.PerspectiveCamera ) { 161 | 162 | scale /= dollyScale; 163 | 164 | } else if ( scope.object instanceof THREE.OrthographicCamera ) { 165 | 166 | scope.object.zoom = Math.max( this.minZoom, Math.min( this.maxZoom, this.object.zoom * dollyScale ) ); 167 | scope.object.updateProjectionMatrix(); 168 | zoomChanged = true; 169 | 170 | } else { 171 | 172 | console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' ); 173 | 174 | } 175 | 176 | }; 177 | 178 | this.dollyOut = function ( dollyScale ) { 179 | 180 | if ( scope.object instanceof THREE.PerspectiveCamera ) { 181 | 182 | scale *= dollyScale; 183 | 184 | } else if ( scope.object instanceof THREE.OrthographicCamera ) { 185 | 186 | scope.object.zoom = Math.max( this.minZoom, Math.min( this.maxZoom, this.object.zoom / dollyScale ) ); 187 | scope.object.updateProjectionMatrix(); 188 | zoomChanged = true; 189 | 190 | } else { 191 | 192 | console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' ); 193 | 194 | } 195 | 196 | }; 197 | 198 | this.update = function() { 199 | 200 | var offset = new THREE.Vector3(); 201 | 202 | // so camera.up is the orbit axis 203 | var quat = new THREE.Quaternion().setFromUnitVectors( object.up, new THREE.Vector3( 0, 1, 0 ) ); 204 | var quatInverse = quat.clone().inverse(); 205 | 206 | var lastPosition = new THREE.Vector3(); 207 | var lastQuaternion = new THREE.Quaternion(); 208 | 209 | return function () { 210 | 211 | var position = this.object.position; 212 | 213 | offset.copy( position ).sub( this.target ); 214 | 215 | // rotate offset to "y-axis-is-up" space 216 | offset.applyQuaternion( quat ); 217 | 218 | // angle from z-axis around y-axis 219 | 220 | theta = Math.atan2( offset.x, offset.z ); 221 | 222 | // angle from y-axis 223 | 224 | phi = Math.atan2( Math.sqrt( offset.x * offset.x + offset.z * offset.z ), offset.y ); 225 | 226 | theta += thetaDelta; 227 | phi += phiDelta; 228 | 229 | // restrict theta to be between desired limits 230 | theta = Math.max( this.minAzimuthAngle, Math.min( this.maxAzimuthAngle, theta ) ); 231 | 232 | // restrict phi to be between desired limits 233 | phi = Math.max( this.minPolarAngle, Math.min( this.maxPolarAngle, phi ) ); 234 | 235 | // restrict phi to be betwee EPS and PI-EPS 236 | phi = Math.max( EPS, Math.min( Math.PI - EPS, phi ) ); 237 | 238 | var radius = offset.length() * scale; 239 | 240 | // restrict radius to be between desired limits 241 | radius = Math.max( this.minDistance, Math.min( this.maxDistance, radius ) ); 242 | 243 | // move target to panned location 244 | this.target.add( panOffset ); 245 | 246 | offset.x = radius * Math.sin( phi ) * Math.sin( theta ); 247 | offset.y = radius * Math.cos( phi ); 248 | offset.z = radius * Math.sin( phi ) * Math.cos( theta ); 249 | 250 | // rotate offset back to "camera-up-vector-is-up" space 251 | offset.applyQuaternion( quatInverse ); 252 | 253 | position.copy( this.target ).add( offset ); 254 | 255 | this.object.lookAt( this.target ); 256 | 257 | if ( this.enableDamping === true ) { 258 | 259 | thetaDelta *= ( 1 - this.dampingFactor ); 260 | phiDelta *= ( 1 - this.dampingFactor ); 261 | 262 | } else { 263 | 264 | thetaDelta = 0; 265 | phiDelta = 0; 266 | 267 | } 268 | 269 | scale = 1; 270 | panOffset.set( 0, 0, 0 ); 271 | 272 | // update condition is: 273 | // min(camera displacement, camera rotation in radians)^2 > EPS 274 | // using small-angle approximation cos(x/2) = 1 - x^2 / 8 275 | 276 | if ( zoomChanged || 277 | lastPosition.distanceToSquared( this.object.position ) > EPS || 278 | 8 * ( 1 - lastQuaternion.dot( this.object.quaternion ) ) > EPS ) { 279 | 280 | lastPosition.copy( this.object.position ); 281 | lastQuaternion.copy( this.object.quaternion ); 282 | zoomChanged = false; 283 | 284 | return true; 285 | 286 | } 287 | 288 | return false; 289 | 290 | }; 291 | 292 | }(); 293 | 294 | }; 295 | 296 | 297 | // This set of controls performs orbiting, dollying (zooming), and panning. It maintains 298 | // the "up" direction as +Y, unlike the TrackballControls. Touch on tablet and phones is 299 | // supported. 300 | // 301 | // Orbit - left mouse / touch: one finger move 302 | // Zoom - middle mouse, or mousewheel / touch: two finger spread or squish 303 | // Pan - right mouse, or arrow keys / touch: three finter swipe 304 | 305 | THREE.OrbitControls = function ( object, domElement ) { 306 | 307 | var constraint = new OrbitConstraint( object ); 308 | 309 | this.domElement = ( domElement !== undefined ) ? domElement : document; 310 | 311 | // API 312 | 313 | Object.defineProperty( this, 'constraint', { 314 | 315 | get: function() { 316 | 317 | return constraint; 318 | 319 | } 320 | 321 | } ); 322 | 323 | this.getPolarAngle = function () { 324 | 325 | return constraint.getPolarAngle(); 326 | 327 | }; 328 | 329 | this.getAzimuthalAngle = function () { 330 | 331 | return constraint.getAzimuthalAngle(); 332 | 333 | }; 334 | 335 | // Set to false to disable this control 336 | this.enabled = true; 337 | 338 | // center is old, deprecated; use "target" instead 339 | this.center = this.target; 340 | 341 | // This option actually enables dollying in and out; left as "zoom" for 342 | // backwards compatibility. 343 | // Set to false to disable zooming 344 | this.enableZoom = true; 345 | this.zoomSpeed = 1.0; 346 | 347 | // Set to false to disable rotating 348 | this.enableRotate = true; 349 | this.rotateSpeed = 1.0; 350 | 351 | // Set to false to disable panning 352 | this.enablePan = true; 353 | this.keyPanSpeed = 7.0; // pixels moved per arrow key push 354 | 355 | // Set to true to automatically rotate around the target 356 | // If auto-rotate is enabled, you must call controls.update() in your animation loop 357 | this.autoRotate = false; 358 | this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60 359 | 360 | // Set to false to disable use of the keys 361 | this.enableKeys = true; 362 | 363 | // The four arrow keys 364 | this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 }; 365 | 366 | // Mouse buttons 367 | this.mouseButtons = { ORBIT: THREE.MOUSE.LEFT, ZOOM: THREE.MOUSE.MIDDLE, PAN: THREE.MOUSE.RIGHT }; 368 | 369 | //////////// 370 | // internals 371 | 372 | var scope = this; 373 | 374 | var rotateStart = new THREE.Vector2(); 375 | var rotateEnd = new THREE.Vector2(); 376 | var rotateDelta = new THREE.Vector2(); 377 | 378 | var panStart = new THREE.Vector2(); 379 | var panEnd = new THREE.Vector2(); 380 | var panDelta = new THREE.Vector2(); 381 | 382 | var dollyStart = new THREE.Vector2(); 383 | var dollyEnd = new THREE.Vector2(); 384 | var dollyDelta = new THREE.Vector2(); 385 | 386 | var STATE = { NONE : - 1, ROTATE : 0, DOLLY : 1, PAN : 2, TOUCH_ROTATE : 3, TOUCH_DOLLY : 4, TOUCH_PAN : 5 }; 387 | 388 | var state = STATE.NONE; 389 | 390 | // for reset 391 | 392 | this.target0 = this.target.clone(); 393 | this.position0 = this.object.position.clone(); 394 | this.zoom0 = this.object.zoom; 395 | 396 | // events 397 | 398 | var changeEvent = { type: 'change' }; 399 | var startEvent = { type: 'start' }; 400 | var endEvent = { type: 'end' }; 401 | 402 | // pass in x,y of change desired in pixel space, 403 | // right and down are positive 404 | function pan( deltaX, deltaY ) { 405 | 406 | var element = scope.domElement === document ? scope.domElement.body : scope.domElement; 407 | 408 | constraint.pan( deltaX, deltaY, element.clientWidth, element.clientHeight ); 409 | 410 | } 411 | 412 | this.update = function () { 413 | 414 | if ( this.autoRotate && state === STATE.NONE ) { 415 | 416 | constraint.rotateLeft( getAutoRotationAngle() ); 417 | 418 | } 419 | 420 | if ( constraint.update() === true ) { 421 | 422 | this.dispatchEvent( changeEvent ); 423 | 424 | } 425 | 426 | }; 427 | 428 | this.reset = function () { 429 | 430 | state = STATE.NONE; 431 | 432 | this.target.copy( this.target0 ); 433 | this.object.position.copy( this.position0 ); 434 | this.object.zoom = this.zoom0; 435 | 436 | this.object.updateProjectionMatrix(); 437 | this.dispatchEvent( changeEvent ); 438 | 439 | this.update(); 440 | 441 | }; 442 | 443 | function getAutoRotationAngle() { 444 | 445 | return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed; 446 | 447 | } 448 | 449 | function getZoomScale() { 450 | 451 | return Math.pow( 0.95, scope.zoomSpeed ); 452 | 453 | } 454 | 455 | function onMouseDown( event ) { 456 | 457 | if ( scope.enabled === false ) return; 458 | 459 | event.preventDefault(); 460 | 461 | if ( event.button === scope.mouseButtons.ORBIT ) { 462 | 463 | if ( scope.enableRotate === false ) return; 464 | 465 | state = STATE.ROTATE; 466 | 467 | rotateStart.set( event.clientX, event.clientY ); 468 | 469 | } else if ( event.button === scope.mouseButtons.ZOOM ) { 470 | 471 | if ( scope.enableZoom === false ) return; 472 | 473 | state = STATE.DOLLY; 474 | 475 | dollyStart.set( event.clientX, event.clientY ); 476 | 477 | } else if ( event.button === scope.mouseButtons.PAN ) { 478 | 479 | if ( scope.enablePan === false ) return; 480 | 481 | state = STATE.PAN; 482 | 483 | panStart.set( event.clientX, event.clientY ); 484 | 485 | } 486 | 487 | if ( state !== STATE.NONE ) { 488 | 489 | document.addEventListener( 'mousemove', onMouseMove, false ); 490 | document.addEventListener( 'mouseup', onMouseUp, false ); 491 | scope.dispatchEvent( startEvent ); 492 | 493 | } 494 | 495 | } 496 | 497 | function onMouseMove( event ) { 498 | 499 | if ( scope.enabled === false ) return; 500 | 501 | event.preventDefault(); 502 | 503 | var element = scope.domElement === document ? scope.domElement.body : scope.domElement; 504 | 505 | if ( state === STATE.ROTATE ) { 506 | 507 | if ( scope.enableRotate === false ) return; 508 | 509 | rotateEnd.set( event.clientX, event.clientY ); 510 | rotateDelta.subVectors( rotateEnd, rotateStart ); 511 | 512 | // rotating across whole screen goes 360 degrees around 513 | constraint.rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed ); 514 | 515 | // rotating up and down along whole screen attempts to go 360, but limited to 180 516 | constraint.rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed ); 517 | 518 | rotateStart.copy( rotateEnd ); 519 | 520 | } else if ( state === STATE.DOLLY ) { 521 | 522 | if ( scope.enableZoom === false ) return; 523 | 524 | dollyEnd.set( event.clientX, event.clientY ); 525 | dollyDelta.subVectors( dollyEnd, dollyStart ); 526 | 527 | if ( dollyDelta.y > 0 ) { 528 | 529 | constraint.dollyIn( getZoomScale() ); 530 | 531 | } else if ( dollyDelta.y < 0 ) { 532 | 533 | constraint.dollyOut( getZoomScale() ); 534 | 535 | } 536 | 537 | dollyStart.copy( dollyEnd ); 538 | 539 | } else if ( state === STATE.PAN ) { 540 | 541 | if ( scope.enablePan === false ) return; 542 | 543 | panEnd.set( event.clientX, event.clientY ); 544 | panDelta.subVectors( panEnd, panStart ); 545 | 546 | pan( panDelta.x, panDelta.y ); 547 | 548 | panStart.copy( panEnd ); 549 | 550 | } 551 | 552 | if ( state !== STATE.NONE ) scope.update(); 553 | 554 | } 555 | 556 | function onMouseUp( /* event */ ) { 557 | 558 | if ( scope.enabled === false ) return; 559 | 560 | document.removeEventListener( 'mousemove', onMouseMove, false ); 561 | document.removeEventListener( 'mouseup', onMouseUp, false ); 562 | scope.dispatchEvent( endEvent ); 563 | state = STATE.NONE; 564 | 565 | } 566 | 567 | function onMouseWheel( event ) { 568 | 569 | if ( scope.enabled === false || scope.enableZoom === false || state !== STATE.NONE ) return; 570 | 571 | event.preventDefault(); 572 | event.stopPropagation(); 573 | 574 | var delta = 0; 575 | 576 | if ( event.wheelDelta !== undefined ) { 577 | 578 | // WebKit / Opera / Explorer 9 579 | 580 | delta = event.wheelDelta; 581 | 582 | } else if ( event.detail !== undefined ) { 583 | 584 | // Firefox 585 | 586 | delta = - event.detail; 587 | 588 | } 589 | 590 | if ( delta > 0 ) { 591 | 592 | constraint.dollyOut( getZoomScale() ); 593 | 594 | } else if ( delta < 0 ) { 595 | 596 | constraint.dollyIn( getZoomScale() ); 597 | 598 | } 599 | 600 | scope.update(); 601 | scope.dispatchEvent( startEvent ); 602 | scope.dispatchEvent( endEvent ); 603 | 604 | } 605 | 606 | function onKeyDown( event ) { 607 | 608 | if ( scope.enabled === false || scope.enableKeys === false || scope.enablePan === false ) return; 609 | 610 | switch ( event.keyCode ) { 611 | 612 | case scope.keys.UP: 613 | pan( 0, scope.keyPanSpeed ); 614 | scope.update(); 615 | break; 616 | 617 | case scope.keys.BOTTOM: 618 | pan( 0, - scope.keyPanSpeed ); 619 | scope.update(); 620 | break; 621 | 622 | case scope.keys.LEFT: 623 | pan( scope.keyPanSpeed, 0 ); 624 | scope.update(); 625 | break; 626 | 627 | case scope.keys.RIGHT: 628 | pan( - scope.keyPanSpeed, 0 ); 629 | scope.update(); 630 | break; 631 | 632 | } 633 | 634 | } 635 | 636 | function touchstart( event ) { 637 | 638 | if ( scope.enabled === false ) return; 639 | 640 | switch ( event.touches.length ) { 641 | 642 | case 1: // one-fingered touch: rotate 643 | 644 | if ( scope.enableRotate === false ) return; 645 | 646 | state = STATE.TOUCH_ROTATE; 647 | 648 | rotateStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); 649 | break; 650 | 651 | case 2: // two-fingered touch: dolly 652 | 653 | if ( scope.enableZoom === false ) return; 654 | 655 | state = STATE.TOUCH_DOLLY; 656 | 657 | var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX; 658 | var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY; 659 | var distance = Math.sqrt( dx * dx + dy * dy ); 660 | dollyStart.set( 0, distance ); 661 | break; 662 | 663 | case 3: // three-fingered touch: pan 664 | 665 | if ( scope.enablePan === false ) return; 666 | 667 | state = STATE.TOUCH_PAN; 668 | 669 | panStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); 670 | break; 671 | 672 | default: 673 | 674 | state = STATE.NONE; 675 | 676 | } 677 | 678 | if ( state !== STATE.NONE ) scope.dispatchEvent( startEvent ); 679 | 680 | } 681 | 682 | function touchmove( event ) { 683 | 684 | if ( scope.enabled === false ) return; 685 | 686 | event.preventDefault(); 687 | event.stopPropagation(); 688 | 689 | var element = scope.domElement === document ? scope.domElement.body : scope.domElement; 690 | 691 | switch ( event.touches.length ) { 692 | 693 | case 1: // one-fingered touch: rotate 694 | 695 | if ( scope.enableRotate === false ) return; 696 | if ( state !== STATE.TOUCH_ROTATE ) return; 697 | 698 | rotateEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); 699 | rotateDelta.subVectors( rotateEnd, rotateStart ); 700 | 701 | // rotating across whole screen goes 360 degrees around 702 | constraint.rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed ); 703 | // rotating up and down along whole screen attempts to go 360, but limited to 180 704 | constraint.rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed ); 705 | 706 | rotateStart.copy( rotateEnd ); 707 | 708 | scope.update(); 709 | break; 710 | 711 | case 2: // two-fingered touch: dolly 712 | 713 | if ( scope.enableZoom === false ) return; 714 | if ( state !== STATE.TOUCH_DOLLY ) return; 715 | 716 | var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX; 717 | var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY; 718 | var distance = Math.sqrt( dx * dx + dy * dy ); 719 | 720 | dollyEnd.set( 0, distance ); 721 | dollyDelta.subVectors( dollyEnd, dollyStart ); 722 | 723 | if ( dollyDelta.y > 0 ) { 724 | 725 | constraint.dollyOut( getZoomScale() ); 726 | 727 | } else if ( dollyDelta.y < 0 ) { 728 | 729 | constraint.dollyIn( getZoomScale() ); 730 | 731 | } 732 | 733 | dollyStart.copy( dollyEnd ); 734 | 735 | scope.update(); 736 | break; 737 | 738 | case 3: // three-fingered touch: pan 739 | 740 | if ( scope.enablePan === false ) return; 741 | if ( state !== STATE.TOUCH_PAN ) return; 742 | 743 | panEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); 744 | panDelta.subVectors( panEnd, panStart ); 745 | 746 | pan( panDelta.x, panDelta.y ); 747 | 748 | panStart.copy( panEnd ); 749 | 750 | scope.update(); 751 | break; 752 | 753 | default: 754 | 755 | state = STATE.NONE; 756 | 757 | } 758 | 759 | } 760 | 761 | function touchend( /* event */ ) { 762 | 763 | if ( scope.enabled === false ) return; 764 | 765 | scope.dispatchEvent( endEvent ); 766 | state = STATE.NONE; 767 | 768 | } 769 | 770 | function contextmenu( event ) { 771 | 772 | event.preventDefault(); 773 | 774 | } 775 | 776 | this.dispose = function() { 777 | 778 | this.domElement.removeEventListener( 'contextmenu', contextmenu, false ); 779 | this.domElement.removeEventListener( 'mousedown', onMouseDown, false ); 780 | this.domElement.removeEventListener( 'mousewheel', onMouseWheel, false ); 781 | this.domElement.removeEventListener( 'MozMousePixelScroll', onMouseWheel, false ); // firefox 782 | 783 | this.domElement.removeEventListener( 'touchstart', touchstart, false ); 784 | this.domElement.removeEventListener( 'touchend', touchend, false ); 785 | this.domElement.removeEventListener( 'touchmove', touchmove, false ); 786 | 787 | document.removeEventListener( 'mousemove', onMouseMove, false ); 788 | document.removeEventListener( 'mouseup', onMouseUp, false ); 789 | 790 | window.removeEventListener( 'keydown', onKeyDown, false ); 791 | 792 | } 793 | 794 | this.domElement.addEventListener( 'contextmenu', contextmenu, false ); 795 | 796 | this.domElement.addEventListener( 'mousedown', onMouseDown, false ); 797 | this.domElement.addEventListener( 'mousewheel', onMouseWheel, false ); 798 | this.domElement.addEventListener( 'MozMousePixelScroll', onMouseWheel, false ); // firefox 799 | 800 | this.domElement.addEventListener( 'touchstart', touchstart, false ); 801 | this.domElement.addEventListener( 'touchend', touchend, false ); 802 | this.domElement.addEventListener( 'touchmove', touchmove, false ); 803 | 804 | window.addEventListener( 'keydown', onKeyDown, false ); 805 | 806 | // force an update at start 807 | this.update(); 808 | 809 | }; 810 | 811 | THREE.OrbitControls.prototype = Object.create( THREE.EventDispatcher.prototype ); 812 | THREE.OrbitControls.prototype.constructor = THREE.OrbitControls; 813 | 814 | Object.defineProperties( THREE.OrbitControls.prototype, { 815 | 816 | object: { 817 | 818 | get: function () { 819 | 820 | return this.constraint.object; 821 | 822 | } 823 | 824 | }, 825 | 826 | target: { 827 | 828 | get: function () { 829 | 830 | return this.constraint.target; 831 | 832 | }, 833 | 834 | set: function ( value ) { 835 | 836 | console.warn( 'THREE.OrbitControls: target is now immutable. Use target.set() instead.' ); 837 | this.constraint.target.copy( value ); 838 | 839 | } 840 | 841 | }, 842 | 843 | minDistance : { 844 | 845 | get: function () { 846 | 847 | return this.constraint.minDistance; 848 | 849 | }, 850 | 851 | set: function ( value ) { 852 | 853 | this.constraint.minDistance = value; 854 | 855 | } 856 | 857 | }, 858 | 859 | maxDistance : { 860 | 861 | get: function () { 862 | 863 | return this.constraint.maxDistance; 864 | 865 | }, 866 | 867 | set: function ( value ) { 868 | 869 | this.constraint.maxDistance = value; 870 | 871 | } 872 | 873 | }, 874 | 875 | minZoom : { 876 | 877 | get: function () { 878 | 879 | return this.constraint.minZoom; 880 | 881 | }, 882 | 883 | set: function ( value ) { 884 | 885 | this.constraint.minZoom = value; 886 | 887 | } 888 | 889 | }, 890 | 891 | maxZoom : { 892 | 893 | get: function () { 894 | 895 | return this.constraint.maxZoom; 896 | 897 | }, 898 | 899 | set: function ( value ) { 900 | 901 | this.constraint.maxZoom = value; 902 | 903 | } 904 | 905 | }, 906 | 907 | minPolarAngle : { 908 | 909 | get: function () { 910 | 911 | return this.constraint.minPolarAngle; 912 | 913 | }, 914 | 915 | set: function ( value ) { 916 | 917 | this.constraint.minPolarAngle = value; 918 | 919 | } 920 | 921 | }, 922 | 923 | maxPolarAngle : { 924 | 925 | get: function () { 926 | 927 | return this.constraint.maxPolarAngle; 928 | 929 | }, 930 | 931 | set: function ( value ) { 932 | 933 | this.constraint.maxPolarAngle = value; 934 | 935 | } 936 | 937 | }, 938 | 939 | minAzimuthAngle : { 940 | 941 | get: function () { 942 | 943 | return this.constraint.minAzimuthAngle; 944 | 945 | }, 946 | 947 | set: function ( value ) { 948 | 949 | this.constraint.minAzimuthAngle = value; 950 | 951 | } 952 | 953 | }, 954 | 955 | maxAzimuthAngle : { 956 | 957 | get: function () { 958 | 959 | return this.constraint.maxAzimuthAngle; 960 | 961 | }, 962 | 963 | set: function ( value ) { 964 | 965 | this.constraint.maxAzimuthAngle = value; 966 | 967 | } 968 | 969 | }, 970 | 971 | enableDamping : { 972 | 973 | get: function () { 974 | 975 | return this.constraint.enableDamping; 976 | 977 | }, 978 | 979 | set: function ( value ) { 980 | 981 | this.constraint.enableDamping = value; 982 | 983 | } 984 | 985 | }, 986 | 987 | dampingFactor : { 988 | 989 | get: function () { 990 | 991 | return this.constraint.dampingFactor; 992 | 993 | }, 994 | 995 | set: function ( value ) { 996 | 997 | this.constraint.dampingFactor = value; 998 | 999 | } 1000 | 1001 | }, 1002 | 1003 | // backward compatibility 1004 | 1005 | noZoom: { 1006 | 1007 | get: function () { 1008 | 1009 | console.warn( 'THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.' ); 1010 | return ! this.enableZoom; 1011 | 1012 | }, 1013 | 1014 | set: function ( value ) { 1015 | 1016 | console.warn( 'THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.' ); 1017 | this.enableZoom = ! value; 1018 | 1019 | } 1020 | 1021 | }, 1022 | 1023 | noRotate: { 1024 | 1025 | get: function () { 1026 | 1027 | console.warn( 'THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.' ); 1028 | return ! this.enableRotate; 1029 | 1030 | }, 1031 | 1032 | set: function ( value ) { 1033 | 1034 | console.warn( 'THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.' ); 1035 | this.enableRotate = ! value; 1036 | 1037 | } 1038 | 1039 | }, 1040 | 1041 | noPan: { 1042 | 1043 | get: function () { 1044 | 1045 | console.warn( 'THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.' ); 1046 | return ! this.enablePan; 1047 | 1048 | }, 1049 | 1050 | set: function ( value ) { 1051 | 1052 | console.warn( 'THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.' ); 1053 | this.enablePan = ! value; 1054 | 1055 | } 1056 | 1057 | }, 1058 | 1059 | noKeys: { 1060 | 1061 | get: function () { 1062 | 1063 | console.warn( 'THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.' ); 1064 | return ! this.enableKeys; 1065 | 1066 | }, 1067 | 1068 | set: function ( value ) { 1069 | 1070 | console.warn( 'THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.' ); 1071 | this.enableKeys = ! value; 1072 | 1073 | } 1074 | 1075 | }, 1076 | 1077 | staticMoving : { 1078 | 1079 | get: function () { 1080 | 1081 | console.warn( 'THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.' ); 1082 | return ! this.constraint.enableDamping; 1083 | 1084 | }, 1085 | 1086 | set: function ( value ) { 1087 | 1088 | console.warn( 'THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.' ); 1089 | this.constraint.enableDamping = ! value; 1090 | 1091 | } 1092 | 1093 | }, 1094 | 1095 | dynamicDampingFactor : { 1096 | 1097 | get: function () { 1098 | 1099 | console.warn( 'THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.' ); 1100 | return this.constraint.dampingFactor; 1101 | 1102 | }, 1103 | 1104 | set: function ( value ) { 1105 | 1106 | console.warn( 'THREE.OrbitControls: .dynamicDampingFactor has been renamed. 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