/**
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* @author qiao / https://github.com/qiao
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* @author mrdoob / http://mrdoob.com
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* @author alteredq / http://alteredqualia.com/
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* @author WestLangley / http://github.com/WestLangley
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* @author erich666 / http://erichaines.com
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*/
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// This set of controls performs orbiting, dollying (zooming), and panning.
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// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
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//
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// Orbit - left mouse / touch: one finger move
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// Zoom - middle mouse, or mousewheel / touch: two finger spread or squish
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// Pan - right mouse, or arrow keys / touch: three finter swipe
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THREE.OrbitControls = function (object, domElement) {
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this.object = object;
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this.domElement = (domElement !== undefined) ? domElement : document;
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// Set to false to disable this control
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this.enabled = true;
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// "target" sets the location of focus, where the object orbits around
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this.target = new THREE.Vector3();
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// How far you can dolly in and out ( PerspectiveCamera only )
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this.minDistance = 0;
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this.maxDistance = Infinity;
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// How far you can zoom in and out ( OrthographicCamera only )
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this.minZoom = 0;
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this.maxZoom = Infinity;
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// How far you can orbit vertically, upper and lower limits.
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// Range is 0 to Math.PI radians.
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this.minPolarAngle = 0; // radians
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this.maxPolarAngle = Math.PI; // radians
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// How far you can orbit horizontally, upper and lower limits.
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// If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ].
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this.minAzimuthAngle = -Infinity; // radians
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this.maxAzimuthAngle = Infinity; // radians
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// Set to true to enable damping (inertia)
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// If damping is enabled, you must call controls.update() in your animation loop
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this.enableDamping = false;
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this.dampingFactor = 0.25;
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// This option actually enables dollying in and out; left as "zoom" for backwards compatibility.
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// Set to false to disable zooming
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this.enableZoom = true;
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this.zoomSpeed = 1.0;
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// Set to false to disable rotating
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this.enableRotate = true;
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this.rotateSpeed = 1.0;
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// Set to false to disable panning
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this.enablePan = true;
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this.keyPanSpeed = 7.0; // pixels moved per arrow key push
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// Set to true to automatically rotate around the target
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// If auto-rotate is enabled, you must call controls.update() in your animation loop
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this.autoRotate = false;
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this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60
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// Set to false to disable use of the keys
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this.enableKeys = true;
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// The four arrow keys
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this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 };
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// Mouse buttons
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this.mouseButtons = { ORBIT: THREE.MOUSE.LEFT, ZOOM: THREE.MOUSE.MIDDLE, PAN: THREE.MOUSE.RIGHT };
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// for reset
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this.target0 = this.target.clone();
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this.position0 = this.object.position.clone();
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this.zoom0 = this.object.zoom;
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//
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// public methods
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//
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this.getPolarAngle = function () {
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return spherical.phi;
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};
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this.getAzimuthalAngle = function () {
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return spherical.theta;
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};
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this.reset = function () {
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scope.target.copy(scope.target0);
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scope.object.position.copy(scope.position0);
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scope.object.zoom = scope.zoom0;
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scope.object.updateProjectionMatrix();
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scope.dispatchEvent(changeEvent);
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scope.update();
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state = STATE.NONE;
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};
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// this method is exposed, but perhaps it would be better if we can make it private...
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this.update = function () {
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var offset = new THREE.Vector3();
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// so camera.up is the orbit axis
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var quat = new THREE.Quaternion().setFromUnitVectors(object.up, new THREE.Vector3(0, 1, 0));
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var quatInverse = quat.clone().inverse();
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var lastPosition = new THREE.Vector3();
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var lastQuaternion = new THREE.Quaternion();
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return function () {
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var position = scope.object.position;
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offset.copy(position).sub(scope.target);
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// rotate offset to "y-axis-is-up" space
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offset.applyQuaternion(quat);
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// angle from z-axis around y-axis
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spherical.setFromVector3(offset);
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if (scope.autoRotate && state === STATE.NONE) {
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rotateLeft(getAutoRotationAngle());
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}
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spherical.theta += sphericalDelta.theta;
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spherical.phi += sphericalDelta.phi;
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// restrict theta to be between desired limits
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spherical.theta = Math.max(scope.minAzimuthAngle, Math.min(scope.maxAzimuthAngle, spherical.theta));
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// restrict phi to be between desired limits
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spherical.phi = Math.max(scope.minPolarAngle, Math.min(scope.maxPolarAngle, spherical.phi));
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spherical.makeSafe();
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spherical.radius *= scale;
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// restrict radius to be between desired limits
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spherical.radius = Math.max(scope.minDistance, Math.min(scope.maxDistance, spherical.radius));
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// move target to panned location
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scope.target.add(panOffset);
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offset.setFromSpherical(spherical);
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// rotate offset back to "camera-up-vector-is-up" space
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offset.applyQuaternion(quatInverse);
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position.copy(scope.target).add(offset);
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scope.object.lookAt(scope.target);
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if (scope.enableDamping === true) {
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sphericalDelta.theta *= (1 - scope.dampingFactor);
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sphericalDelta.phi *= (1 - scope.dampingFactor);
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} else {
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sphericalDelta.set(0, 0, 0);
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}
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scale = 1;
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panOffset.set(0, 0, 0);
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// update condition is:
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// min(camera displacement, camera rotation in radians)^2 > EPS
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// using small-angle approximation cos(x/2) = 1 - x^2 / 8
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if (zoomChanged ||
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lastPosition.distanceToSquared(scope.object.position) > EPS ||
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8 * (1 - lastQuaternion.dot(scope.object.quaternion)) > EPS) {
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scope.dispatchEvent(changeEvent);
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lastPosition.copy(scope.object.position);
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lastQuaternion.copy(scope.object.quaternion);
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zoomChanged = false;
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return true;
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}
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return false;
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};
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}();
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this.dispose = function () {
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scope.domElement.removeEventListener('contextmenu', onContextMenu, false);
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scope.domElement.removeEventListener('mousedown', onMouseDown, false);
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scope.domElement.removeEventListener('mousewheel', onMouseWheel, false);
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scope.domElement.removeEventListener('MozMousePixelScroll', onMouseWheel, false); // firefox
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scope.domElement.removeEventListener('touchstart', onTouchStart, false);
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scope.domElement.removeEventListener('touchend', onTouchEnd, false);
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scope.domElement.removeEventListener('touchmove', onTouchMove, false);
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document.removeEventListener('mousemove', onMouseMove, false);
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document.removeEventListener('mouseup', onMouseUp, false);
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document.removeEventListener('mouseout', onMouseUp, false);
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window.removeEventListener('keydown', onKeyDown, false);
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//scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?
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};
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//
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// internals
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//
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var scope = this;
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var changeEvent = { type: 'change' };
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var startEvent = { type: 'start' };
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var endEvent = { type: 'end' };
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var STATE = { NONE: -1, ROTATE: 0, DOLLY: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_DOLLY: 4, TOUCH_PAN: 5 };
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var state = STATE.NONE;
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var EPS = 0.000001;
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// current position in spherical coordinates
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var spherical = new THREE.Spherical();
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var sphericalDelta = new THREE.Spherical();
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var scale = 1;
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var panOffset = new THREE.Vector3();
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var zoomChanged = false;
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var rotateStart = new THREE.Vector2();
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var rotateEnd = new THREE.Vector2();
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var rotateDelta = new THREE.Vector2();
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var panStart = new THREE.Vector2();
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var panEnd = new THREE.Vector2();
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var panDelta = new THREE.Vector2();
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var dollyStart = new THREE.Vector2();
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var dollyEnd = new THREE.Vector2();
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var dollyDelta = new THREE.Vector2();
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function getAutoRotationAngle() {
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return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;
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}
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function getZoomScale() {
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return Math.pow(0.95, scope.zoomSpeed);
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}
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function rotateLeft(angle) {
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sphericalDelta.theta -= angle;
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}
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function rotateUp(angle) {
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sphericalDelta.phi -= angle;
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}
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var panLeft = function () {
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var v = new THREE.Vector3();
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return function panLeft(distance, objectMatrix) {
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v.setFromMatrixColumn(objectMatrix, 0); // get X column of objectMatrix
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v.multiplyScalar(-distance);
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panOffset.add(v);
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};
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}();
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var panUp = function () {
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var v = new THREE.Vector3();
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return function panUp(distance, objectMatrix) {
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v.setFromMatrixColumn(objectMatrix, 1); // get Y column of objectMatrix
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v.multiplyScalar(distance);
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panOffset.add(v);
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};
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}();
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// deltaX and deltaY are in pixels; right and down are positive
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var pan = function () {
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var offset = new THREE.Vector3();
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return function (deltaX, deltaY) {
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var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
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if (scope.object instanceof THREE.PerspectiveCamera) {
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// perspective
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var position = scope.object.position;
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offset.copy(position).sub(scope.target);
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var targetDistance = offset.length();
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// half of the fov is center to top of screen
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targetDistance *= Math.tan((scope.object.fov / 2) * Math.PI / 180.0);
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// we actually don't use screenWidth, since perspective camera is fixed to screen height
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panLeft(2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix);
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panUp(2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix);
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} else if (scope.object instanceof THREE.OrthographicCamera) {
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// orthographic
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panLeft(deltaX * (scope.object.right - scope.object.left) / scope.object.zoom / element.clientWidth, scope.object.matrix);
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panUp(deltaY * (scope.object.top - scope.object.bottom) / scope.object.zoom / element.clientHeight, scope.object.matrix);
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} else {
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// camera neither orthographic nor perspective
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console.warn('WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.');
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scope.enablePan = false;
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}
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};
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}();
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function dollyIn(dollyScale) {
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if (scope.object instanceof THREE.PerspectiveCamera) {
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scale /= dollyScale;
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} else if (scope.object instanceof THREE.OrthographicCamera) {
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scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom * dollyScale));
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scope.object.updateProjectionMatrix();
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zoomChanged = true;
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} else {
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console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');
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scope.enableZoom = false;
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}
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}
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function dollyOut(dollyScale) {
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if (scope.object instanceof THREE.PerspectiveCamera) {
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scale *= dollyScale;
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} else if (scope.object instanceof THREE.OrthographicCamera) {
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scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom / dollyScale));
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scope.object.updateProjectionMatrix();
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zoomChanged = true;
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} else {
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console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');
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scope.enableZoom = false;
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}
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}
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//
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// event callbacks - update the object state
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//
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function handleMouseDownRotate(event) {
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//console.log( 'handleMouseDownRotate' );
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rotateStart.set(event.clientX, event.clientY);
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}
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function handleMouseDownDolly(event) {
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//console.log( 'handleMouseDownDolly' );
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dollyStart.set(event.clientX, event.clientY);
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}
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function handleMouseDownPan(event) {
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//console.log( 'handleMouseDownPan' );
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panStart.set(event.clientX, event.clientY);
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}
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function handleMouseMoveRotate(event) {
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//console.log( 'handleMouseMoveRotate' );
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rotateEnd.set(event.clientX, event.clientY);
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rotateDelta.subVectors(rotateEnd, rotateStart);
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var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
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// rotating across whole screen goes 360 degrees around
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rotateLeft(2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed);
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// rotating up and down along whole screen attempts to go 360, but limited to 180
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rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed);
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rotateStart.copy(rotateEnd);
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scope.update();
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}
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function handleMouseMoveDolly(event) {
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//console.log( 'handleMouseMoveDolly' );
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dollyEnd.set(event.clientX, event.clientY);
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dollyDelta.subVectors(dollyEnd, dollyStart);
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if (dollyDelta.y > 0) {
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dollyIn(getZoomScale());
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} else if (dollyDelta.y < 0) {
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dollyOut(getZoomScale());
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}
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dollyStart.copy(dollyEnd);
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scope.update();
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}
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function handleMouseMovePan(event) {
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//console.log( 'handleMouseMovePan' );
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panEnd.set(event.clientX, event.clientY);
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panDelta.subVectors(panEnd, panStart);
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pan(panDelta.x, panDelta.y);
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panStart.copy(panEnd);
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scope.update();
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}
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function handleMouseUp(event) {
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//console.log( 'handleMouseUp' );
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}
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function handleMouseWheel(event) {
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//console.log( 'handleMouseWheel' );
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var delta = 0;
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if (event.wheelDelta !== undefined) {
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// WebKit / Opera / Explorer 9
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delta = event.wheelDelta;
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} else if (event.detail !== undefined) {
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// Firefox
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delta = - event.detail;
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}
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if (delta > 0) {
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dollyOut(getZoomScale());
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} else if (delta < 0) {
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dollyIn(getZoomScale());
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}
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scope.update();
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}
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function handleKeyDown(event) {
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//console.log( 'handleKeyDown' );
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switch (event.keyCode) {
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case scope.keys.UP:
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pan(0, scope.keyPanSpeed);
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scope.update();
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break;
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case scope.keys.BOTTOM:
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pan(0, -scope.keyPanSpeed);
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scope.update();
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break;
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case scope.keys.LEFT:
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pan(scope.keyPanSpeed, 0);
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scope.update();
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break;
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case scope.keys.RIGHT:
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pan(-scope.keyPanSpeed, 0);
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scope.update();
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break;
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}
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}
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function handleTouchStartRotate(event) {
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//console.log( 'handleTouchStartRotate' );
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rotateStart.set(event.touches[0].pageX, event.touches[0].pageY);
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}
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function handleTouchStartDolly(event) {
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//console.log( 'handleTouchStartDolly' );
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var dx = event.touches[0].pageX - event.touches[1].pageX;
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var dy = event.touches[0].pageY - event.touches[1].pageY;
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var distance = Math.sqrt(dx * dx + dy * dy);
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dollyStart.set(0, distance);
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}
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function handleTouchStartPan(event) {
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//console.log( 'handleTouchStartPan' );
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panStart.set(event.touches[0].pageX, event.touches[0].pageY);
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}
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function handleTouchMoveRotate(event) {
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//console.log( 'handleTouchMoveRotate' );
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rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY);
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rotateDelta.subVectors(rotateEnd, rotateStart);
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var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
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// rotating across whole screen goes 360 degrees around
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rotateLeft(2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed);
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// rotating up and down along whole screen attempts to go 360, but limited to 180
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rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed);
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rotateStart.copy(rotateEnd);
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scope.update();
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}
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function handleTouchMoveDolly(event) {
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//console.log( 'handleTouchMoveDolly' );
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var dx = event.touches[0].pageX - event.touches[1].pageX;
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var dy = event.touches[0].pageY - event.touches[1].pageY;
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var distance = Math.sqrt(dx * dx + dy * dy);
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dollyEnd.set(0, distance);
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dollyDelta.subVectors(dollyEnd, dollyStart);
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if (dollyDelta.y > 0) {
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dollyOut(getZoomScale());
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} else if (dollyDelta.y < 0) {
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dollyIn(getZoomScale());
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}
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dollyStart.copy(dollyEnd);
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scope.update();
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}
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function handleTouchMovePan(event) {
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//console.log( 'handleTouchMovePan' );
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panEnd.set(event.touches[0].pageX, event.touches[0].pageY);
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panDelta.subVectors(panEnd, panStart);
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pan(panDelta.x, panDelta.y);
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panStart.copy(panEnd);
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scope.update();
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}
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function handleTouchEnd(event) {
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//console.log( 'handleTouchEnd' );
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}
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//
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// event handlers - FSM: listen for events and reset state
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//
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function onMouseDown(event) {
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if (scope.enabled === false) return;
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event.preventDefault();
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if (event.button === scope.mouseButtons.ORBIT) {
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if (scope.enableRotate === false) return;
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handleMouseDownRotate(event);
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state = STATE.ROTATE;
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} else if (event.button === scope.mouseButtons.ZOOM) {
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if (scope.enableZoom === false) return;
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handleMouseDownDolly(event);
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state = STATE.DOLLY;
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} else if (event.button === scope.mouseButtons.PAN) {
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if (scope.enablePan === false) return;
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handleMouseDownPan(event);
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state = STATE.PAN;
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}
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if (state !== STATE.NONE) {
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document.addEventListener('mousemove', onMouseMove, false);
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document.addEventListener('mouseup', onMouseUp, false);
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document.addEventListener('mouseout', onMouseUp, false);
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scope.dispatchEvent(startEvent);
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}
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}
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function onMouseMove(event) {
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if (scope.enabled === false) return;
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event.preventDefault();
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if (state === STATE.ROTATE) {
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if (scope.enableRotate === false) return;
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handleMouseMoveRotate(event);
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} else if (state === STATE.DOLLY) {
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if (scope.enableZoom === false) return;
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handleMouseMoveDolly(event);
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} else if (state === STATE.PAN) {
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if (scope.enablePan === false) return;
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handleMouseMovePan(event);
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}
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}
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function onMouseUp(event) {
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if (scope.enabled === false) return;
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handleMouseUp(event);
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document.removeEventListener('mousemove', onMouseMove, false);
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document.removeEventListener('mouseup', onMouseUp, false);
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document.removeEventListener('mouseout', onMouseUp, false);
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scope.dispatchEvent(endEvent);
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state = STATE.NONE;
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}
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function onMouseWheel(event) {
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if (scope.enabled === false || scope.enableZoom === false || (state !== STATE.NONE && state !== STATE.ROTATE)) return;
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event.preventDefault();
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event.stopPropagation();
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handleMouseWheel(event);
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scope.dispatchEvent(startEvent); // not sure why these are here...
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scope.dispatchEvent(endEvent);
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}
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function onKeyDown(event) {
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if (scope.enabled === false || scope.enableKeys === false || scope.enablePan === false) return;
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handleKeyDown(event);
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}
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function onTouchStart(event) {
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if (scope.enabled === false) return;
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switch (event.touches.length) {
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case 1: // one-fingered touch: rotate
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if (scope.enableRotate === false) return;
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handleTouchStartRotate(event);
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state = STATE.TOUCH_ROTATE;
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break;
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case 2: // two-fingered touch: dolly
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if (scope.enableZoom === false) return;
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handleTouchStartDolly(event);
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state = STATE.TOUCH_DOLLY;
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break;
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case 3: // three-fingered touch: pan
|
|
if (scope.enablePan === false) return;
|
|
handleTouchStartPan(event);
|
|
state = STATE.TOUCH_PAN;
|
|
break;
|
|
default:
|
|
state = STATE.NONE;
|
|
}
|
|
if (state !== STATE.NONE) {
|
|
scope.dispatchEvent(startEvent);
|
|
}
|
|
}
|
|
function onTouchMove(event) {
|
|
if (scope.enabled === false) return;
|
|
event.preventDefault();
|
event.stopPropagation();
|
|
switch (event.touches.length) {
|
|
case 1: // one-fingered touch: rotate
|
|
if (scope.enableRotate === false) return;
|
if (state !== STATE.TOUCH_ROTATE) return; // is this needed?...
|
|
handleTouchMoveRotate(event);
|
|
break;
|
|
case 2: // two-fingered touch: dolly
|
|
if (scope.enableZoom === false) return;
|
if (state !== STATE.TOUCH_DOLLY) return; // is this needed?...
|
|
handleTouchMoveDolly(event);
|
|
break;
|
|
case 3: // three-fingered touch: pan
|
|
if (scope.enablePan === false) return;
|
if (state !== STATE.TOUCH_PAN) return; // is this needed?...
|
|
handleTouchMovePan(event);
|
|
break;
|
|
default:
|
|
state = STATE.NONE;
|
|
}
|
|
}
|
|
function onTouchEnd(event) {
|
|
if (scope.enabled === false) return;
|
|
handleTouchEnd(event);
|
|
scope.dispatchEvent(endEvent);
|
|
state = STATE.NONE;
|
|
}
|
|
function onContextMenu(event) {
|
|
event.preventDefault();
|
|
}
|
|
//
|
|
scope.domElement.addEventListener('contextmenu', onContextMenu, false);
|
|
scope.domElement.addEventListener('mousedown', onMouseDown, false);
|
scope.domElement.addEventListener('mousewheel', onMouseWheel, false);
|
scope.domElement.addEventListener('MozMousePixelScroll', onMouseWheel, false); // firefox
|
|
scope.domElement.addEventListener('touchstart', onTouchStart, false);
|
scope.domElement.addEventListener('touchend', onTouchEnd, false);
|
scope.domElement.addEventListener('touchmove', onTouchMove, false);
|
|
window.addEventListener('keydown', onKeyDown, false);
|
|
// force an update at start
|
|
this.update();
|
|
};
|
|
THREE.OrbitControls.prototype = Object.create(THREE.EventDispatcher.prototype);
|
THREE.OrbitControls.prototype.constructor = THREE.OrbitControls;
|
|
Object.defineProperties(THREE.OrbitControls.prototype, {
|
|
center: {
|
|
get: function () {
|
|
console.warn('THREE.OrbitControls: .center has been renamed to .target');
|
return this.target;
|
|
}
|
|
},
|
|
// backward compatibility
|
|
noZoom: {
|
|
get: function () {
|
|
console.warn('THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.');
|
return !this.enableZoom;
|
|
},
|
|
set: function (value) {
|
|
console.warn('THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.');
|
this.enableZoom = !value;
|
|
}
|
|
},
|
|
noRotate: {
|
|
get: function () {
|
|
console.warn('THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.');
|
return !this.enableRotate;
|
|
},
|
|
set: function (value) {
|
|
console.warn('THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.');
|
this.enableRotate = !value;
|
|
}
|
|
},
|
|
noPan: {
|
|
get: function () {
|
|
console.warn('THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.');
|
return !this.enablePan;
|
|
},
|
|
set: function (value) {
|
|
console.warn('THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.');
|
this.enablePan = !value;
|
|
}
|
|
},
|
|
noKeys: {
|
|
get: function () {
|
|
console.warn('THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.');
|
return !this.enableKeys;
|
|
},
|
|
set: function (value) {
|
|
console.warn('THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.');
|
this.enableKeys = !value;
|
|
}
|
|
},
|
|
staticMoving: {
|
|
get: function () {
|
|
console.warn('THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.');
|
return !this.enableDamping;
|
|
},
|
|
set: function (value) {
|
|
console.warn('THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.');
|
this.enableDamping = !value;
|
|
}
|
|
},
|
|
dynamicDampingFactor: {
|
|
get: function () {
|
|
console.warn('THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.');
|
return this.dampingFactor;
|
|
},
|
|
set: function (value) {
|
|
console.warn('THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.');
|
this.dampingFactor = value;
|
|
}
|
|
}
|
|
});
|
