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orrery.js
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orrery.js
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// Copyright 2015-17 Olaf Frohn https://github.com/ofrohn, see LICENSE
!(function() {var THREEx = THREEx || {};
THREEx.Planets = {};
THREEx.Planets.baseURL = "../images/";
// Proportional scaling of planetary spheres
THREEx.Planets.scale = 1.0;
// maps from http://planetpixelemporium.com/ and others (see readme)
THREEx.Planets.params = {
// texture map, bump map, cloud map, arbitrary radius, axis tilt in degrees, rotation period in days,
// rotation: axis pole long/lat in eclipic coordinate in degrees, angular velocity in degrees/day
// ring: texture map, outer radius rel. to planet, opacity
"sol": {map: "sunmap.jpg", radius: 1.2, tilt: 7.25, rot: 1.0438, rotation:[286.13, 63.87, 14.1844],
corona: {map: "solarcorona.jpg", radius:5.1} },
"mer": {map: "mercurymap.jpg", bump:"mercurybump.jpg", radius: 0.3, tilt: 0, rot: 58.646, rotation:[318.2274, 82.9623, 6.1385]},
"ven": {map: "venusmap.jpg", radius: 0.4, tilt: 177.3, rot: -4.05, rotation:[30.1871, 88.761, -1.481]},
"ter": {map: "earthmap.jpg", bump:"earthbump.jpg", clouds:"earthclouds.png", radius: 0.4, tilt: 23.45, rot: 0.9973, rotation:[90, 66.5607, 360.9856]},
"lun": {map: "moonmap.jpg", bump:"moonbump.jpg", radius: 0.25, tilt: 1.54, rot: 27.3217, rotation:[264.6051, 89.9784, 13.1763]},
"mar": {map: "marsmap.jpg", bump:"marsbump.jpg", clouds:"marsclouds.png", radius: 0.35, tilt: 25.19, rot: 1.026, rotation:[352.9076, 63.2821, 350.8919] },
"phob": {map: "phobosmap.jpg", bump: "phobosbump.jpg", radius: 0.05, tilt: 0.009, rot: 0.3189, rotation:[352.9259, 63.2928, 1128.8445]},
"deim": {map: "deimosmap.jpg", radius: 0.04, tilt: 0.889, rot: 1.2624, rotation:[352.801, 64.1656, 285.1618]},
"vest": {map: "vestamap.jpg", bump: "vestabump.jpg", radius: 0.1, tilt: 29.0, rot: 0.223, rotation:[330.8257, 57.7239, 1617.3329]},
"cer": {map: "ceresmap.jpg", radius: 0.16, tilt: 4.0, rot: 0.378, rotation:[331.5058, 77.8769, 952.1532]},
"jup": {map: "jupitermap.jpg", radius: 1.2, tilt: 3.12, rot: 0.414, rotation:[247.8167, 87.7835, 870.5360],
ring: {map: "jupiterrings.png", radius: 2.7, opacity: 0.5} },
"io": {map: "iomap.jpg", radius: 0.25, tilt: 0.0, rot: 1.7691, rotation:[247.7063, 87.7869, 203.4889]},
"euro": {map: "europamap.jpg", radius: 0.25, tilt: 0.016, rot: 3.5512, rotation:[247.93, 87.8008, 101.3747]},
"gany": {map: "ganymedemap.jpg", radius: 0.3, tilt: 0.068, rot: 7.1546, rotation:[248.6707, 87.8748, 50.3176]},
"call": {map: "callistomap.jpg", radius: 0.3, tilt: 0.356, rot: 16.689, rotation:[252.4849, 88.191, 21.5710]},
"sat": {map: "saturnmap.jpg", radius: 1.2, tilt: 26.73, rot: 0.444, rotation:[79.5275, 61.9478, 810.7939],
ring: {map: "saturnrings.png", radius: 2.6, opacity: 1.0} },
"mima": {map: "mimasmap.jpg", radius: 0.1, tilt: 0.002, rot: 0.942, rotation:[79.5174, 61.9296, 381.9945]},
"ence": {map: "enceladusmap.jpg", radius: 0.1, tilt: 0.002, rot: 1.37, rotation:[79.5174, 61.9296, 262.7318]},
"teth": {map: "tethysmap.jpg", radius: 0.15, tilt: 0.001, rot: 1.888, rotation:[79.5174, 61.9296, 190.6979]},
"dion": {map: "dionemap.jpg", radius: 0.15, tilt: 0.005, rot: 2.737, rotation:[79.5174, 61.9296, 131.5349]},
"rhea": {map: "rheamap.jpg", radius: 0.2, tilt: 0.036, rot: 4.518, rotation:[79.507, 61.9729, 79.690]},
"tita": {map: "titanclouds.jpg", radius: 0.35, tilt: 0.629, rot: 15.95, rotation:[79.1738, 61.946, 22.577]},
"hype": {map: "hyperionmap.jpg", radius: 0.08, tilt: 0.564, rot: 21.28, rotation:[79.3687, 61.9625, 16.917]},
"iape": {map: "iapetusmap.jpg", radius: 0.15, tilt: 15.21, rot: 79.33, rotation:[49.608, 72.7238, 4.5379]},
"phoe": {map: "phoebemap.jpg", radius: 0.08, tilt: 26.723, rot: 0.4, rotation:[60.8478, 64.3305, 931.639]},
"ura": {map: "uranusmap.jpg", radius: 1.0, tilt: 97.86, rot: 0.718, rotation:[77.6467, -7.7218, 501.1601],
ring: {map: "uranusrings.png", radius: 2.0, opacity: 0.5} },
"arie": {map: "arielmap.jpg", radius: 0.15, tilt: 0.0, rot: -2.520, rotation:[77.7555, -7.8066, -142.8357]},
"umbr": {map: "umbrielmap.jpg", radius: 0.15, tilt: 0.0, rot: -4.144, rotation:[77.7555, -7.8066, -86.8689]},
"titan": {map: "titaniamap.jpg", radius: 0.2, tilt: 0.0, rot: -8.706, rotation:[77.7555, -7.8066, -41.3514]},
"ober": {map: "oberonmap.jpg", radius: 0.2, tilt: 0.0, rot: -13.46, rotation:[77.7555, -7.8066, -26.7394]},
"mira": {map: "mirandamap.jpg", radius: 0.1, tilt: 0.0, rot: -1.413, rotation:[77.7538, -7.8265, -254.6906]},
"nep": {map: "neptunemap.jpg", radius: 1.0, tilt: 29.56, rot: 0.671, rotation:[319.2351, 61.9736, 536.3128],
ring: {map: "neptunerings.png", radius: 2.5, opacity: 0.8} },
"trit": {map: "tritonmap.jpg", radius: 0.2, tilt: 0.01, rot: -5.877, rotation:[317.3413, 59.8764, -61.2573]},
"prot": {map: "proteusmap.jpg", radius: 0.1, tilt: 0.974, rot: 1.122, rotation:[318.631, 61.4993, 320.7654]},
"plu": {map: "plutomap.jpg", radius: 0.2, tilt: 122.53, rot: 6.387, rotation:[133.6817, -10.9977, 56.3625]},
"cha": {map: "charonmap.jpg", radius: 0.1, tilt: 0.0, rot: 6.387, rotation:[133.6817, -10.9977, 56.3625]}
};
// Friendly names
var substitutes = {
"Sun": "sol",
"Mercury": "mer",
"Venus": "ven",
"Earth": "ter",
"Moon": "lun",
"Mars": "mar",
"Phobos": "phob",
"Deimos": "deim",
"Vesta": "vest",
"Ceres": "cer",
"Jupiter": "jup",
"Io": "io",
"Europa": "euro",
"Ganymede": "gany",
"Callisto": "call",
"Saturn": "sat",
"Mimas": "mima",
"Enceladus": "ence",
"Tethys": "teth",
"Dione": "dion",
"Rhea": "rhea",
"Titan": "tita",
"Iapetus": "iape",
"Phoebe": "phoe",
"Uranus": "ura",
"Ariel": "arie",
"Umbriel": "umbr",
"Titania": "titan",
"Oberon": "ober",
"Miranda": "mira",
"Neptune": "nep",
"Triton": "trit",
"Pluto": "plu",
"Charon": "cha",
};
THREEx.Planets.createSun = function() { return THREEx.Planets.create("sol"); };
THREEx.Planets.createMercury = function() { return THREEx.Planets.create("mer"); };
THREEx.Planets.createVenus = function() { return THREEx.Planets.create("ven"); };
THREEx.Planets.createEarth = function() { return THREEx.Planets.create("ter", true); };
THREEx.Planets.createMoon = function() { return THREEx.Planets.create("lun"); };
THREEx.Planets.createMars = function() { return THREEx.Planets.create("mar"); };
THREEx.Planets.createJupiter = function() { return THREEx.Planets.create("jup"); };
THREEx.Planets.createJupiterRing = function() { return THREEx.Planets.createRing("jup"); };
THREEx.Planets.createSaturn = function() { return THREEx.Planets.create("sat", true); };
THREEx.Planets.createSaturnRing = function() { return THREEx.Planets.createRing("sat"); };
THREEx.Planets.createUranus = function() { return THREEx.Planets.create("ura", true); };
THREEx.Planets.createUranusRing = function() { return THREEx.Planets.createRing("ura"); };
THREEx.Planets.createNeptune = function() { return THREEx.Planets.create("nepe"); };
THREEx.Planets.createNeptuneRing = function() { return THREEx.Planets.createRing("nep"); };
THREEx.Planets.createPluto = function() { return THREEx.Planets.create("plu"); };
THREEx.Planets.createStarfield = function() {
var loader = new THREE.TextureLoader();
var texture = loader.load(THREEx.Planets.baseURL + "tycho-skymap.jpg");
var material = new THREE.MeshBasicMaterial({
map : texture,
side : THREE.BackSide
})
var geometry = new THREE.SphereGeometry(100000, 32, 32)
var mesh = new THREE.Mesh(geometry, material)
return mesh
}
// Create body, skipextras true -> don't create cloud, ring etc.
THREEx.Planets.create = function(body, skipextras) {
if (!THREEx.Planets.params.hasOwnProperty(body)) {
if (substitutes.hasOwnProperty(body)) body = substitutes[body];
else {
console.log("Object not found: " + body);
return null;
}
}
var p = THREEx.Planets.params[body], arg = {};
var loader = new THREE.TextureLoader();
var geometry = new THREE.SphereGeometry(p.radius * THREEx.Planets.scale, 32, 32);
arg.map = loader.load(THREEx.Planets.baseURL + p.map);
if (p.hasOwnProperty("bump")) {
arg.bumpMap = loader.load(THREEx.Planets.baseURL + p.bump);
arg.bumpScale = 0.001;
}
if (p.hasOwnProperty("spec")) {
arg.specularMap = loader.load(THREEx.Planets.baseURL + p.spec);
}
if (body === "sol") { //ommmmmmm
var material = new THREE.MeshBasicMaterial(arg);
} else {
var material = new THREE.MeshPhongMaterial(arg);
arg.specular = new THREE.Color( 0x333333 );
arg.shininess = 0.1;
}
var mesh = new THREE.Mesh(geometry, material);
if (!skipextras && p.hasOwnProperty("ring")) {
mesh.receiveShadow = true;
mesh.castShadow = true;
var ring = THREEx.Planets.createRings(body);
ring.receiveShadow = true;
ring.castShadow = true;
mesh.add(ring);
};
if (!skipextras && p.hasOwnProperty("clouds")) {
mesh.add(THREEx.Planets.createClouds(body));
}
if (!skipextras && body === "sol") {
mesh.add(THREEx.Planets.createCorona());
}
mesh.rotateY(THREE.Math.degToRad(p.rotation[0]-180));
mesh.rotateZ(THREE.Math.degToRad(90-p.rotation[1]));
return mesh;
}
// Planetary rings
THREEx.Planets.createRings = function(body) {
if (!THREEx.Planets.params.hasOwnProperty(body)) {
if (substitutes.hasOwnProperty(body)) body = substitutes[body];
else {
console.log("Object not found: " + body);
return null;
}
}
if (!THREEx.Planets.params[body].hasOwnProperty("ring")) {
console.log("Rings not found: " + body);
return null;
}
var p = THREEx.Planets.params[body], map = THREEx.Planets.baseURL + p.ring.map,
loader = new THREE.TextureLoader();
var geometry = new THREEx.Planets.RingGeometry(p.radius * THREEx.Planets.scale * 1.05, p.ring.radius * THREEx.Planets.scale, 64, 64);
var material = new THREE.MeshPhongMaterial({
map: loader.load(map),
side: THREE.DoubleSide,
transparent: true,
opacity: p.ring.opacity
});
var mesh = new THREE.Mesh(geometry, material);
mesh.lookAt(new THREE.Vector3(0, 1, 0));
mesh.name = body + "rings";
return mesh;
}
// Cloud layer from transparent png, see http://blog.thematicmapping.org/2013/09/creating-webgl-earth-with-threejs.html
THREEx.Planets.createClouds = function(body) {
if (!THREEx.Planets.params.hasOwnProperty(body)) {
if (substitutes.hasOwnProperty(body)) body = substitutes[body];
else {
console.log("Object not found: " + body);
return null;
}
}
if (!THREEx.Planets.params[body].hasOwnProperty("clouds")) {
console.log("Clouds not found: " + body);
return null;
}
var p = THREEx.Planets.params[body], map = THREEx.Planets.baseURL + p.clouds,
loader = new THREE.TextureLoader();
var mesh = new THREE.Mesh(
new THREE.SphereGeometry(p.radius * THREEx.Planets.scale * 1.01, 32, 32),
new THREE.MeshPhongMaterial({
map: loader.load(map),
transparent: true
})
);
mesh.name = body + "clouds";
return mesh;
}
// Solar corona, based on Lee Stemkoski's https://github.com/stemkoski/stemkoski.github.com/blob/master/Three.js/Simple-Glow.html
THREEx.Planets.createCorona = function() {
var p = THREEx.Planets.params.sol, map = THREEx.Planets.baseURL + p.corona.map;
var material = new THREE.SpriteMaterial({
map: new THREE.TextureLoader().load(map),
color: 0xffff33,
transparent: false,
blending: THREE.AdditiveBlending
});
var mesh = new THREE.Sprite(material);
mesh.scale.multiplyScalar(p.corona.radius * THREEx.Planets.scale);
mesh.name = "solcorona";
return mesh;
};
/**
* change the original from three.js because i needed different UV
*
* @author Kaleb Murphy
* @author Olaf Frohn
*/
THREEx.Planets.RingGeometry = function (innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength) {
THREE.Geometry.call( this );
this.type = 'RingGeometry';
this.parameters = {
innerRadius: innerRadius,
outerRadius: outerRadius,
thetaSegments: thetaSegments,
phiSegments: phiSegments,
thetaStart: thetaStart,
thetaLength: thetaLength
};
innerRadius = innerRadius || 0;
outerRadius = outerRadius || 50;
thetaStart = thetaStart !== undefined ? thetaStart : 0;
thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
thetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;
phiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 8;
var i, o, uvs = [], radius = innerRadius, radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );
for ( i = 0; i < phiSegments + 1; i ++ ) {
// concentric circles inside ring
for ( o = 0; o < thetaSegments + 1; o ++ ) {
// number of segments per circle
var vertex = new THREE.Vector3();
var segment = thetaStart + o / thetaSegments * thetaLength;
vertex.x = radius * Math.cos( segment );
vertex.y = radius * Math.sin( segment );
this.vertices.push( vertex );
//uvs.push( new THREE.Vector2( ( vertex.x / outerRadius + 1 ) / 2, ( vertex.y / outerRadius + 1 ) / 2 ) );
uvs.push( new THREE.Vector2( i/(thetaSegments-1), o/ (phiSegments-1) ) );
}
radius += radiusStep;
}
var n = new THREE.Vector3( 0, 0, 1 );
for ( i = 0; i < phiSegments; i ++ ) {
// concentric circles inside ring
var thetaSegment = i * ( thetaSegments + 1 );
for ( o = 0; o < thetaSegments ; o ++ ) {
// number of segments per circle
var segment = o + thetaSegment;
var v1 = segment;
var v2 = segment + thetaSegments + 1;
var v3 = segment + thetaSegments + 2;
this.faces.push( new THREE.Face3( v1, v2, v3, [ n.clone(), n.clone(), n.clone() ] ) );
this.faceVertexUvs[ 0 ].push( [ uvs[ v1 ].clone(), uvs[ v2 ].clone(), uvs[ v3 ].clone() ] );
v1 = segment;
v2 = segment + thetaSegments + 2;
v3 = segment + 1;
this.faces.push( new THREE.Face3( v1, v2, v3, [ n.clone(), n.clone(), n.clone() ] ) );
this.faceVertexUvs[ 0 ].push( [ uvs[ v1 ].clone(), uvs[ v2 ].clone(), uvs[ v3 ].clone() ] );
}
}
this.computeFaceNormals();
this.boundingSphere = new THREE.Sphere( new THREE.Vector3(), radius );
};
THREEx.Planets.RingGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREEx.Planets.RingGeometry.prototype.constructor = THREEx.Planets.RingGeometry;
/**
* @author qiao / https://github.com/qiao
* @author mrdoob / http://mrdoob.com
* @author alteredq / http://alteredqualia.com/
* @author WestLangley / http://github.com/WestLangley
* @author erich666 / http://erichaines.com
*/
// This set of controls performs orbiting, dollying (zooming), and panning.
// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
//
// Orbit - left mouse / touch: one finger move
// Zoom - middle mouse, or mousewheel / touch: two finger spread or squish
// Pan - right mouse, or arrow keys / touch: three finter swipe
THREE.OrbitControls = function ( object, domElement ) {
this.object = object;
this.domElement = ( domElement !== undefined ) ? domElement : document;
// Set to false to disable this control
this.enabled = true;
// "target" sets the location of focus, where the object orbits around
this.target = new THREE.Vector3();
// How far you can dolly in and out ( PerspectiveCamera only )
this.minDistance = 0;
this.maxDistance = Infinity;
// How far you can zoom in and out ( OrthographicCamera only )
this.minZoom = 0;
this.maxZoom = Infinity;
// How far you can orbit vertically, upper and lower limits.
// Range is 0 to Math.PI radians.
this.minPolarAngle = 0; // radians
this.maxPolarAngle = Math.PI; // radians
// How far you can orbit horizontally, upper and lower limits.
// If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ].
this.minAzimuthAngle = - Infinity; // radians
this.maxAzimuthAngle = Infinity; // radians
// Set to true to enable damping (inertia)
// If damping is enabled, you must call controls.update() in your animation loop
this.enableDamping = false;
this.dampingFactor = 0.25;
// This option actually enables dollying in and out; left as "zoom" for backwards compatibility.
// Set to false to disable zooming
this.enableZoom = true;
this.zoomSpeed = 1.0;
// Set to false to disable rotating
this.enableRotate = true;
this.rotateSpeed = 1.0;
// Set to false to disable panning
this.enablePan = true;
this.keyPanSpeed = 7.0; // pixels moved per arrow key push
// Set to true to automatically rotate around the target
// If auto-rotate is enabled, you must call controls.update() in your animation loop
this.autoRotate = false;
this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60
// Set to false to disable use of the keys
this.enableKeys = true;
// The four arrow keys
this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 };
// Mouse buttons
this.mouseButtons = { ORBIT: THREE.MOUSE.LEFT, ZOOM: THREE.MOUSE.MIDDLE, PAN: THREE.MOUSE.RIGHT };
// for reset
this.target0 = this.target.clone();
this.position0 = this.object.position.clone();
this.zoom0 = this.object.zoom;
//
// public methods
//
this.getPolarAngle = function () {
return phi;
};
this.getAzimuthalAngle = function () {
return theta;
};
this.reset = function () {
scope.target.copy( scope.target0 );
scope.object.position.copy( scope.position0 );
scope.object.zoom = scope.zoom0;
scope.object.updateProjectionMatrix();
scope.dispatchEvent( changeEvent );
scope.update();
state = STATE.NONE;
};
// this method is exposed, but perhaps it would be better if we can make it private...
this.update = function() {
var offset = new THREE.Vector3();
// so camera.up is the orbit axis
var quat = new THREE.Quaternion().setFromUnitVectors( object.up, new THREE.Vector3( 0, 1, 0 ) );
var quatInverse = quat.clone().inverse();
var lastPosition = new THREE.Vector3();
var lastQuaternion = new THREE.Quaternion();
return function () {
var position = scope.object.position;
offset.copy( position ).sub( scope.target );
// rotate offset to "y-axis-is-up" space
offset.applyQuaternion( quat );
// angle from z-axis around y-axis
theta = Math.atan2( offset.x, offset.z );
// angle from y-axis
phi = Math.atan2( Math.sqrt( offset.x * offset.x + offset.z * offset.z ), offset.y );
if ( scope.autoRotate && state === STATE.NONE ) {
rotateLeft( getAutoRotationAngle() );
}
theta += thetaDelta;
phi += phiDelta;
// restrict theta to be between desired limits
theta = Math.max( scope.minAzimuthAngle, Math.min( scope.maxAzimuthAngle, theta ) );
// restrict phi to be between desired limits
phi = Math.max( scope.minPolarAngle, Math.min( scope.maxPolarAngle, phi ) );
// restrict phi to be betwee EPS and PI-EPS
phi = Math.max( EPS, Math.min( Math.PI - EPS, phi ) );
var radius = offset.length() * scale;
// restrict radius to be between desired limits
radius = Math.max( scope.minDistance, Math.min( scope.maxDistance, radius ) );
// move target to panned location
scope.target.add( panOffset );
offset.x = radius * Math.sin( phi ) * Math.sin( theta );
offset.y = radius * Math.cos( phi );
offset.z = radius * Math.sin( phi ) * Math.cos( theta );
// rotate offset back to "camera-up-vector-is-up" space
offset.applyQuaternion( quatInverse );
position.copy( scope.target ).add( offset );
scope.object.lookAt( scope.target );
if ( scope.enableDamping === true ) {
thetaDelta *= ( 1 - scope.dampingFactor );
phiDelta *= ( 1 - scope.dampingFactor );
} else {
thetaDelta = 0;
phiDelta = 0;
}
scale = 1;
panOffset.set( 0, 0, 0 );
// update condition is:
// min(camera displacement, camera rotation in radians)^2 > EPS
// using small-angle approximation cos(x/2) = 1 - x^2 / 8
if ( zoomChanged ||
lastPosition.distanceToSquared( scope.object.position ) > EPS ||
8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS ) {
scope.dispatchEvent( changeEvent );
lastPosition.copy( scope.object.position );
lastQuaternion.copy( scope.object.quaternion );
zoomChanged = false;
return true;
}
return false;
};
}();
this.dispose = function() {
scope.domElement.removeEventListener( 'contextmenu', onContextMenu, false );
scope.domElement.removeEventListener( 'mousedown', onMouseDown, false );
scope.domElement.removeEventListener( 'mousewheel', onMouseWheel, false );
scope.domElement.removeEventListener( 'MozMousePixelScroll', onMouseWheel, false ); // firefox
scope.domElement.removeEventListener( 'touchstart', onTouchStart, false );
scope.domElement.removeEventListener( 'touchend', onTouchEnd, false );
scope.domElement.removeEventListener( 'touchmove', onTouchMove, false );
document.removeEventListener( 'mousemove', onMouseMove, false );
document.removeEventListener( 'mouseup', onMouseUp, false );
document.removeEventListener( 'mouseout', onMouseUp, false );
window.removeEventListener( 'keydown', onKeyDown, false );
//scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?
};
//
// internals
//
var scope = this;
var changeEvent = { type: 'change' };
var startEvent = { type: 'start' };
var endEvent = { type: 'end' };
var STATE = { NONE : - 1, ROTATE : 0, DOLLY : 1, PAN : 2, TOUCH_ROTATE : 3, TOUCH_DOLLY : 4, TOUCH_PAN : 5 };
var state = STATE.NONE;
var EPS = 0.000001;
// current position in spherical coordinates
var theta;
var phi;
var phiDelta = 0;
var thetaDelta = 0;
var scale = 1;
var panOffset = new THREE.Vector3();
var zoomChanged = false;
var rotateStart = new THREE.Vector2();
var rotateEnd = new THREE.Vector2();
var rotateDelta = new THREE.Vector2();
var panStart = new THREE.Vector2();
var panEnd = new THREE.Vector2();
var panDelta = new THREE.Vector2();
var dollyStart = new THREE.Vector2();
var dollyEnd = new THREE.Vector2();
var dollyDelta = new THREE.Vector2();
function getAutoRotationAngle() {
return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;
}
function getZoomScale() {
return Math.pow( 0.95, scope.zoomSpeed );
}
function rotateLeft( angle ) {
thetaDelta -= angle;
}
function rotateUp( angle ) {
phiDelta -= angle;
}
var panLeft = function() {
var v = new THREE.Vector3();
return function panLeft( distance, objectMatrix ) {
var te = objectMatrix.elements;
// get X column of objectMatrix
v.set( te[ 0 ], te[ 1 ], te[ 2 ] );
v.multiplyScalar( - distance );
panOffset.add( v );
};
}();
var panUp = function() {
var v = new THREE.Vector3();
return function panUp( distance, objectMatrix ) {
var te = objectMatrix.elements;
// get Y column of objectMatrix
v.set( te[ 4 ], te[ 5 ], te[ 6 ] );
v.multiplyScalar( distance );
panOffset.add( v );
};
}();
// deltaX and deltaY are in pixels; right and down are positive
var pan = function() {
var offset = new THREE.Vector3();
return function( deltaX, deltaY ) {
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
if ( scope.object instanceof THREE.PerspectiveCamera ) {
// perspective
var position = scope.object.position;
offset.copy( position ).sub( scope.target );
var targetDistance = offset.length();
// half of the fov is center to top of screen
targetDistance *= Math.tan( ( scope.object.fov / 2 ) * Math.PI / 180.0 );
// we actually don't use screenWidth, since perspective camera is fixed to screen height
panLeft( 2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix );
panUp( 2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix );
} else if ( scope.object instanceof THREE.OrthographicCamera ) {
// orthographic
panLeft( deltaX * ( scope.object.right - scope.object.left ) / element.clientWidth, scope.object.matrix );
panUp( deltaY * ( scope.object.top - scope.object.bottom ) / element.clientHeight, scope.object.matrix );
} else {
// camera neither orthographic nor perspective
console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.' );
scope.enablePan = false;
}
};
}();
function dollyIn( dollyScale ) {
if ( scope.object instanceof THREE.PerspectiveCamera ) {
scale /= dollyScale;
} else if ( scope.object instanceof THREE.OrthographicCamera ) {
scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom * dollyScale ) );
scope.object.updateProjectionMatrix();
zoomChanged = true;
} else {
console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' );
scope.enableZoom = false;
}
}
function dollyOut( dollyScale ) {
if ( scope.object instanceof THREE.PerspectiveCamera ) {
scale *= dollyScale;
} else if ( scope.object instanceof THREE.OrthographicCamera ) {
scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom / dollyScale ) );
scope.object.updateProjectionMatrix();
zoomChanged = true;
} else {
console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' );
scope.enableZoom = false;
}
}
//
// event callbacks - update the object state
//
function handleMouseDownRotate( event ) {
//console.log( 'handleMouseDownRotate' );
rotateStart.set( event.clientX, event.clientY );
}
function handleMouseDownDolly( event ) {
//console.log( 'handleMouseDownDolly' );
dollyStart.set( event.clientX, event.clientY );
}
function handleMouseDownPan( event ) {
//console.log( 'handleMouseDownPan' );
panStart.set( event.clientX, event.clientY );
}
function handleMouseMoveRotate( event ) {
//console.log( 'handleMouseMoveRotate' );
rotateEnd.set( event.clientX, event.clientY );
rotateDelta.subVectors( rotateEnd, rotateStart );
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
// rotating across whole screen goes 360 degrees around
rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed );
// rotating up and down along whole screen attempts to go 360, but limited to 180
rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed );
rotateStart.copy( rotateEnd );
scope.update();
}
function handleMouseMoveDolly( event ) {
//console.log( 'handleMouseMoveDolly' );
dollyEnd.set( event.clientX, event.clientY );
dollyDelta.subVectors( dollyEnd, dollyStart );
if ( dollyDelta.y > 0 ) {
dollyIn( getZoomScale() );
} else if ( dollyDelta.y < 0 ) {
dollyOut( getZoomScale() );
}
dollyStart.copy( dollyEnd );
scope.update();
}
function handleMouseMovePan( event ) {
//console.log( 'handleMouseMovePan' );
panEnd.set( event.clientX, event.clientY );
panDelta.subVectors( panEnd, panStart );
pan( panDelta.x, panDelta.y );
panStart.copy( panEnd );
scope.update();
}
function handleMouseUp( event ) {
//console.log( 'handleMouseUp' );
}
function handleMouseWheel( event ) {
//console.log( 'handleMouseWheel' );
var delta = 0;
if ( event.wheelDelta !== undefined ) {
// WebKit / Opera / Explorer 9
delta = event.wheelDelta;
} else if ( event.detail !== undefined ) {
// Firefox
delta = - event.detail;
}
if ( delta > 0 ) {
dollyOut( getZoomScale() );
} else if ( delta < 0 ) {
dollyIn( getZoomScale() );
}
scope.update();
}
function handleKeyDown( event ) {
//console.log( 'handleKeyDown' );
switch ( event.keyCode ) {
case scope.keys.UP:
pan( 0, scope.keyPanSpeed );
scope.update();
break;
case scope.keys.BOTTOM:
pan( 0, - scope.keyPanSpeed );
scope.update();
break;
case scope.keys.LEFT:
pan( scope.keyPanSpeed, 0 );
scope.update();
break;
case scope.keys.RIGHT:
pan( - scope.keyPanSpeed, 0 );
scope.update();
break;
}
}
function handleTouchStartRotate( event ) {
//console.log( 'handleTouchStartRotate' );
rotateStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );
}
function handleTouchStartDolly( event ) {
//console.log( 'handleTouchStartDolly' );
var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
var distance = Math.sqrt( dx * dx + dy * dy );
dollyStart.set( 0, distance );
}
function handleTouchStartPan( event ) {
//console.log( 'handleTouchStartPan' );
panStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );
}
function handleTouchMoveRotate( event ) {
//console.log( 'handleTouchMoveRotate' );
rotateEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );
rotateDelta.subVectors( rotateEnd, rotateStart );
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
// rotating across whole screen goes 360 degrees around
rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed );
// rotating up and down along whole screen attempts to go 360, but limited to 180
rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed );
rotateStart.copy( rotateEnd );
scope.update();
}
function handleTouchMoveDolly( event ) {
//console.log( 'handleTouchMoveDolly' );
var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
var distance = Math.sqrt( dx * dx + dy * dy );
dollyEnd.set( 0, distance );
dollyDelta.subVectors( dollyEnd, dollyStart );
if ( dollyDelta.y > 0 ) {
dollyOut( getZoomScale() );
} else if ( dollyDelta.y < 0 ) {
dollyIn( getZoomScale() );