// 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 left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move THREE.OrbitControls = function (object, domElement) { if (domElement === undefined) console.warn('THREE.OrbitControls: The second parameter "domElement" is now mandatory.'); if (domElement === document) console.error('THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.'); this.object = object; this.domElement = domElement; // 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, the interval [ min, max ] must be a sub-interval of [ - 2 PI, 2 PI ], with ( max - min < 2 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 = 0.05; // 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.panSpeed = 1.0; this.screenSpacePanning = true; // if false, pan orthogonal to world-space direction camera.up 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 // The four arrow keys this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 }; // Mouse buttons this.mouseButtons = { LEFT: THREE.MOUSE.ROTATE, MIDDLE: THREE.MOUSE.DOLLY, RIGHT: THREE.MOUSE.PAN }; // Touch fingers this.touches = { ONE: THREE.TOUCH.ROTATE, TWO: THREE.TOUCH.DOLLY_PAN }; // for reset this.target0 = this.target.clone(); this.position0 = this.object.position.clone(); this.zoom0 = this.object.zoom; // the target DOM element for key events this._domElementKeyEvents = null; // // public methods // this.getPolarAngle = function () { return spherical.phi; }; this.getAzimuthalAngle = function () { return spherical.theta; }; this.listenToKeyEvents = function (domElement) { domElement.addEventListener('keydown', onKeyDown, false); this._domElementKeyEvents = domElement; }; this.saveState = function () { scope.target0.copy(scope.target); scope.position0.copy(scope.object.position); scope.zoom0 = scope.object.zoom; }; 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().invert(); var lastPosition = new THREE.Vector3(); var lastQuaternion = new THREE.Quaternion(); var twoPI = 2 * Math.PI; return function update() { 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 spherical.setFromVector3(offset); if (scope.autoRotate && state === STATE.NONE) { rotateLeft(getAutoRotationAngle()); } if (scope.enableDamping) { spherical.theta += sphericalDelta.theta * scope.dampingFactor; spherical.phi += sphericalDelta.phi * scope.dampingFactor; } else { spherical.theta += sphericalDelta.theta; spherical.phi += sphericalDelta.phi; } // restrict theta to be between desired limits var min = scope.minAzimuthAngle; var max = scope.maxAzimuthAngle; if (isFinite(min) && isFinite(max)) { if (min < -Math.PI) min += twoPI; else if (min > Math.PI) min -= twoPI; if (max < -Math.PI) max += twoPI; else if (max > Math.PI) max -= twoPI; if (min <= max) { spherical.theta = Math.max(min, Math.min(max, spherical.theta)); } else { spherical.theta = (spherical.theta > (min + max) / 2) ? Math.max(min, spherical.theta) : Math.min(max, spherical.theta); } } // restrict phi to be between desired limits spherical.phi = Math.max(scope.minPolarAngle, Math.min(scope.maxPolarAngle, spherical.phi)); spherical.makeSafe(); spherical.radius *= scale; // restrict radius to be between desired limits spherical.radius = Math.max(scope.minDistance, Math.min(scope.maxDistance, spherical.radius)); // move target to panned location if (scope.enableDamping === true) { scope.target.addScaledVector(panOffset, scope.dampingFactor); } else { scope.target.add(panOffset); } offset.setFromSpherical(spherical); // 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) { sphericalDelta.theta *= (1 - scope.dampingFactor); sphericalDelta.phi *= (1 - scope.dampingFactor); panOffset.multiplyScalar(1 - scope.dampingFactor); } else { sphericalDelta.set(0, 0, 0); panOffset.set(0, 0, 0); } scale = 1; // 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); if (typeof scope.domElement.onpointerdown != 'undefined') { scope.domElement.removeEventListener('pointerdown', onPointerDown, false); } else { scope.domElement.removeEventListener('mousedown', onPointerDown, false); } if (typeof scope.domElement.onpointerup != 'undefined') { scope.domElement.ownerDocument.removeEventListener('pointerup', onPointerUp, false); } else { scope.domElement.ownerDocument.removeEventListener('mouseup', onPointerUp, false); } if (typeof scope.domElement.onpointermove != 'undefined') { scope.domElement.ownerDocument.removeEventListener('pointermove', onPointerMove, false); } else { scope.domElement.ownerDocument.removeEventListener('mousemove', onPointerMove, false); } scope.domElement.removeEventListener('wheel', onMouseWheel, false); if (typeof scope.domElement.ontouchstart != 'undefined') { scope.domElement.removeEventListener('touchstart', onTouchStart, false); } else { scope.domElement.removeEventListener('mousedown', onTouchStart, false); } if (typeof scope.domElement.ontouchend != 'undefined') { scope.domElement.removeEventListener('touchend', onTouchEnd, false); } else { scope.domElement.removeEventListener('mouseup', onTouchEnd, false); } if (typeof this.renderer.domElement.ontouchmove != 'undefined') { scope.domElement.removeEventListener('touchmove', onTouchMove, false); } else { scope.domElement.removeEventListener('mousemove', onTouchMove, false); } if (scope._domElementKeyEvents !== null) { scope._domElementKeyEvents.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_PAN: 4, TOUCH_DOLLY_PAN: 5, TOUCH_DOLLY_ROTATE: 6 }; var state = STATE.NONE; var EPS = 0.000001; // current position in spherical coordinates var spherical = new THREE.Spherical(); var sphericalDelta = new THREE.Spherical(); 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) { sphericalDelta.theta -= angle; } function rotateUp(angle) { sphericalDelta.phi -= angle; } var panLeft = function () { var v = new THREE.Vector3(); return function panLeft(distance, objectMatrix) { v.setFromMatrixColumn(objectMatrix, 0); // get X column of objectMatrix v.multiplyScalar(-distance); panOffset.add(v); }; }(); var panUp = function () { var v = new THREE.Vector3(); return function panUp(distance, objectMatrix) { if (scope.screenSpacePanning === true) { v.setFromMatrixColumn(objectMatrix, 1); } else { v.setFromMatrixColumn(objectMatrix, 0); v.crossVectors(scope.object.up, v); } 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 pan(deltaX, deltaY) { var element = scope.domElement; if (scope.object.isPerspectiveCamera) { // 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 use only clientHeight here so aspect ratio does not distort speed panLeft(2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix); panUp(2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix); } else if (scope.object.isOrthographicCamera) { // orthographic panLeft(deltaX * (scope.object.right - scope.object.left) / scope.object.zoom / element.clientWidth, scope.object.matrix); panUp(deltaY * (scope.object.top - scope.object.bottom) / scope.object.zoom / 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 dollyOut(dollyScale) { if (scope.object.isPerspectiveCamera) { scale /= dollyScale; } else if (scope.object.isOrthographicCamera) { 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 dollyIn(dollyScale) { if (scope.object.isPerspectiveCamera) { scale *= dollyScale; } else if (scope.object.isOrthographicCamera) { 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) { rotateStart.set(event.clientX, event.clientY); } function handleMouseDownDolly(event) { dollyStart.set(event.clientX, event.clientY); } function handleMouseDownPan(event) { panStart.set(event.clientX, event.clientY); } function handleMouseMoveRotate(event) { rotateEnd.set(event.clientX, event.clientY); rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed); var element = scope.domElement; rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight); // yes, height rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight); rotateStart.copy(rotateEnd); scope.update(); } function handleMouseMoveDolly(event) { dollyEnd.set(event.clientX, event.clientY); dollyDelta.subVectors(dollyEnd, dollyStart); if (dollyDelta.y > 0) { dollyOut(getZoomScale()); } else if (dollyDelta.y < 0) { dollyIn(getZoomScale()); } dollyStart.copy(dollyEnd); scope.update(); } function handleMouseMovePan(event) { panEnd.set(event.clientX, event.clientY); panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed); pan(panDelta.x, panDelta.y); panStart.copy(panEnd); scope.update(); } function handleMouseUp( /*event*/ ) { // no-op } function handleMouseWheel(event) { if (event.deltaY < 0) { dollyIn(getZoomScale()); } else if (event.deltaY > 0) { dollyOut(getZoomScale()); } scope.update(); } function handleKeyDown(event) { var needsUpdate = false; switch (event.keyCode) { case scope.keys.UP: pan(0, scope.keyPanSpeed); needsUpdate = true; break; case scope.keys.BOTTOM: pan(0, -scope.keyPanSpeed); needsUpdate = true; break; case scope.keys.LEFT: pan(scope.keyPanSpeed, 0); needsUpdate = true; break; case scope.keys.RIGHT: pan(-scope.keyPanSpeed, 0); needsUpdate = true; break; } if (needsUpdate) { // prevent the browser from scrolling on cursor keys event.preventDefault(); scope.update(); } } function handleTouchStartRotate(event) { if (event.touches.length == 1) { rotateStart.set(event.touches[0].pageX, event.touches[0].pageY); } else { var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX); var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY); rotateStart.set(x, y); } } function handleTouchStartPan(event) { if (event.touches.length == 1) { panStart.set(event.touches[0].pageX, event.touches[0].pageY); } else { var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX); var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY); panStart.set(x, y); } } function handleTouchStartDolly(event) { 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 handleTouchStartDollyPan(event) { if (scope.enableZoom) handleTouchStartDolly(event); if (scope.enablePan) handleTouchStartPan(event); } function handleTouchStartDollyRotate(event) { if (scope.enableZoom) handleTouchStartDolly(event); if (scope.enableRotate) handleTouchStartRotate(event); } function handleTouchMoveRotate(event) { if (event.touches.length == 1) { rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY); } else { var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX); var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY); rotateEnd.set(x, y); } rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed); var element = scope.domElement; rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight); // yes, height rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight); rotateStart.copy(rotateEnd); } function handleTouchMovePan(event) { if (event.touches.length == 1) { panEnd.set(event.touches[0].pageX, event.touches[0].pageY); } else { var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX); var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY); panEnd.set(x, y); } panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed); pan(panDelta.x, panDelta.y); panStart.copy(panEnd); } function handleTouchMoveDolly(event) { 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.set(0, Math.pow(dollyEnd.y / dollyStart.y, scope.zoomSpeed)); dollyOut(dollyDelta.y); dollyStart.copy(dollyEnd); } function handleTouchMoveDollyPan(event) { if (scope.enableZoom) handleTouchMoveDolly(event); if (scope.enablePan) handleTouchMovePan(event); } function handleTouchMoveDollyRotate(event) { if (scope.enableZoom) handleTouchMoveDolly(event); if (scope.enableRotate) handleTouchMoveRotate(event); } function handleTouchEnd( /*event*/ ) { // no-op } // // event handlers - FSM: listen for events and reset state // function onPointerDown(event) { if (scope.enabled === false) return; if (event.pointerType) { switch (event.pointerType) { case 'mouse': case 'pen': onMouseDown(event); break; // TODO touch } } else { onMouseDown(event); } } function onPointerMove(event) { if (scope.enabled === false) return; if (event.pointerType) { switch (event.pointerType) { case 'mouse': case 'pen': onMouseMove(event); break; // TODO touch } } else { onMouseMove(event); } } function onPointerUp(event) { if (event.pointerType) { switch (event.pointerType) { case 'mouse': case 'pen': onMouseUp(event); break; // TODO touch } } else { onMouseUp(event); } } function onMouseDown(event) { // Prevent the browser from scrolling. event.preventDefault(); // Manually set the focus since calling preventDefault above // prevents the browser from setting it automatically. scope.domElement.focus ? scope.domElement.focus() : window.focus(); var mouseAction; switch (event.button) { case 0: mouseAction = scope.mouseButtons.LEFT; break; case 1: mouseAction = scope.mouseButtons.MIDDLE; break; case 2: mouseAction = scope.mouseButtons.RIGHT; break; default: mouseAction = -1; } switch (mouseAction) { case THREE.MOUSE.DOLLY: if (scope.enableZoom === false) return; handleMouseDownDolly(event); state = STATE.DOLLY; break; case THREE.MOUSE.ROTATE: if (event.ctrlKey || event.metaKey || event.shiftKey) { if (scope.enablePan === false) return; handleMouseDownPan(event); state = STATE.PAN; } else { if (scope.enableRotate === false) return; handleMouseDownRotate(event); state = STATE.ROTATE; } break; case THREE.MOUSE.PAN: if (event.ctrlKey || event.metaKey || event.shiftKey) { if (scope.enableRotate === false) return; handleMouseDownRotate(event); state = STATE.ROTATE; } else { if (scope.enablePan === false) return; handleMouseDownPan(event); state = STATE.PAN; } break; default: state = STATE.NONE; } if (state !== STATE.NONE) { if (typeof scope.domElement.onpointerup != 'undefined') { scope.domElement.ownerDocument.addEventListener('pointerup', onPointerUp, false); } else { scope.domElement.addEventListener('mouseup', onPointerUp, false); } if (typeof scope.domElement.onpointermove != 'undefined') { scope.domElement.ownerDocument.addEventListener('pointermove', onPointerMove, false); } else { scope.domElement.addEventListener('mousemove', onPointerMove, false); } scope.dispatchEvent(startEvent); } } function onMouseMove(event) { if (scope.enabled === false) return; event.preventDefault(); switch (state) { case STATE.ROTATE: if (scope.enableRotate === false) return; handleMouseMoveRotate(event); break; case STATE.DOLLY: if (scope.enableZoom === false) return; handleMouseMoveDolly(event); break; case STATE.PAN: if (scope.enablePan === false) return; handleMouseMovePan(event); break; } } function onMouseUp(event) { scope.domElement.ownerDocument.removeEventListener('pointermove', onPointerMove, false); scope.domElement.ownerDocument.removeEventListener('pointerup', onPointerUp, false); if (scope.enabled === false) return; handleMouseUp(event); scope.dispatchEvent(endEvent); state = STATE.NONE; } function onMouseWheel(event) { if (scope.enabled === false || scope.enableZoom === false || (state !== STATE.NONE && state !== STATE.ROTATE)) return; event.preventDefault(); event.stopPropagation(); scope.dispatchEvent(startEvent); handleMouseWheel(event); scope.dispatchEvent(endEvent); } function onKeyDown(event) { if (scope.enabled === false || scope.enablePan === false) return; handleKeyDown(event); } function onTouchStart(event) { if (scope.enabled === false) return; event.preventDefault(); // prevent scrolling if(event.touches == null) return; switch (event.touches.length) { case 1: switch (scope.touches.ONE) { case THREE.TOUCH.ROTATE: if (scope.enableRotate === false) return; handleTouchStartRotate(event); state = STATE.TOUCH_ROTATE; break; case THREE.TOUCH.PAN: if (scope.enablePan === false) return; handleTouchStartPan(event); state = STATE.TOUCH_PAN; break; default: state = STATE.NONE; } break; case 2: switch (scope.touches.TWO) { case THREE.TOUCH.DOLLY_PAN: if (scope.enableZoom === false && scope.enablePan === false) return; handleTouchStartDollyPan(event); state = STATE.TOUCH_DOLLY_PAN; break; case THREE.TOUCH.DOLLY_ROTATE: if (scope.enableZoom === false && scope.enableRotate === false) return; handleTouchStartDollyRotate(event); state = STATE.TOUCH_DOLLY_ROTATE; break; default: state = STATE.NONE; } break; default: state = STATE.NONE; } if (state !== STATE.NONE) { scope.dispatchEvent(startEvent); } } function onTouchMove(event) { if (scope.enabled === false) return; event.preventDefault(); // prevent scrolling event.stopPropagation(); switch (state) { case STATE.TOUCH_ROTATE: if (scope.enableRotate === false) return; handleTouchMoveRotate(event); scope.update(); break; case STATE.TOUCH_PAN: if (scope.enablePan === false) return; handleTouchMovePan(event); scope.update(); break; case STATE.TOUCH_DOLLY_PAN: if (scope.enableZoom === false && scope.enablePan === false) return; handleTouchMoveDollyPan(event); scope.update(); break; case STATE.TOUCH_DOLLY_ROTATE: if (scope.enableZoom === false && scope.enableRotate === false) return; handleTouchMoveDollyRotate(event); scope.update(); break; default: state = STATE.NONE; } } function onTouchEnd(event) { if (scope.enabled === false) return; handleTouchEnd(event); scope.dispatchEvent(endEvent); state = STATE.NONE; } function onContextMenu(event) { if (scope.enabled === false) return; event.preventDefault(); } // scope.domElement.addEventListener('contextmenu', onContextMenu, false); if (typeof scope.domElement.onpointerdown != 'undefined') { scope.domElement.addEventListener('pointerdown', onPointerDown, false); } else { scope.domElement.addEventListener('mousedown', onPointerDown, false); } scope.domElement.addEventListener('wheel', onMouseWheel, false); if (typeof scope.domElement.ontouchstart != 'undefined') { scope.domElement.addEventListener('touchstart', onTouchStart, false); } else { scope.domElement.addEventListener('mousedown', onTouchStart, false); } if (typeof scope.domElement.ontouchend != 'undefined') { scope.domElement.addEventListener('touchend', onTouchEnd, false); } else { // scope.domElement.addEventListener('mouseup', onTouchEnd, false); } if (typeof scope.domElement.ontouchmove != 'undefined') { scope.domElement.addEventListener('touchmove', onTouchMove, false); } else { // scope.domElement.addEventListener('mousemove', onTouchMove, false); } // scope.domElement.addEventListener( 'touchstart', onTouchStart, false ); // scope.domElement.addEventListener( 'touchend', onTouchEnd, false ); // scope.domElement.addEventListener( 'touchmove', onTouchMove, false ); // force an update at start this.update(); }; THREE.OrbitControls.prototype = Object.create(THREE.EventDispatcher.prototype); THREE.OrbitControls.prototype.constructor = THREE.OrbitControls; // This set of controls performs orbiting, dollying (zooming), and panning. // Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default). // This is very similar to OrbitControls, another set of touch behavior // // Orbit - right mouse, or left mouse + ctrl/meta/shiftKey / touch: two-finger rotate // Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish // Pan - left mouse, or arrow keys / touch: one-finger move THREE.MapControls = function (object, domElement) { THREE.OrbitControls.call(this, object, domElement); this.screenSpacePanning = false; // pan orthogonal to world-space direction camera.up this.mouseButtons.LEFT = THREE.MOUSE.PAN; this.mouseButtons.RIGHT = THREE.MOUSE.ROTATE; this.touches.ONE = THREE.TOUCH.PAN; this.touches.TWO = THREE.TOUCH.DOLLY_ROTATE; }; THREE.MapControls.prototype = Object.create(THREE.EventDispatcher.prototype); THREE.MapControls.prototype.constructor = THREE.MapControls;