From 2fd9cc46ff2428bb2fa891f47002e9d3e7585583 Mon Sep 17 00:00:00 2001 From: Federico Igne Date: Sat, 13 Aug 2022 11:33:30 +0100 Subject: init: import project --- lib/OrbitControls.js | 625 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 625 insertions(+) create mode 100755 lib/OrbitControls.js (limited to 'lib/OrbitControls.js') diff --git a/lib/OrbitControls.js b/lib/OrbitControls.js new file mode 100755 index 0000000..56c1f8b --- /dev/null +++ b/lib/OrbitControls.js @@ -0,0 +1,625 @@ +/** + * @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 + */ +/*global THREE, console */ + +// This set of controls performs orbiting, dollying (zooming), and panning. It maintains +// the "up" direction as +Y, unlike the TrackballControls. Touch on tablet and phones is +// supported. +// +// 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 +// +// This is a drop-in replacement for (most) TrackballControls used in examples. +// That is, include this js file and wherever you see: +// controls = new THREE.TrackballControls( camera ); +// controls.target.z = 150; +// Simple substitute "OrbitControls" and the control should work as-is. + +THREE.OrbitControls = function ( object, domElement ) { + + this.object = object; + this.domElement = ( domElement !== undefined ) ? domElement : document; + + // API + + // Set to false to disable this control + this.enabled = true; + + // "target" sets the location of focus, where the control orbits around + // and where it pans with respect to. + this.target = new THREE.Vector3(); + + // center is old, deprecated; use "target" instead + this.center = this.target; + + // This option actually enables dollying in and out; left as "zoom" for + // backwards compatibility + this.noZoom = false; + this.zoomSpeed = 1.0; + + // Limits to how far you can dolly in and out + this.minDistance = 0; + this.maxDistance = Infinity; + + // Set to true to disable this control + this.noRotate = false; + this.rotateSpeed = 1.0; + + // Set to true to disable this control + this.noPan = false; + this.keyPanSpeed = 7.0; // pixels moved per arrow key push + + // Set to true to automatically rotate around the target + this.autoRotate = false; + this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60 + + // 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 + + // Set to true to disable use of the keys + this.noKeys = false; + + // The four arrow keys + this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 }; + + //////////// + // internals + + var scope = this; + + var EPS = 0.000001; + + 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 panOffset = new THREE.Vector3(); + + var offset = new THREE.Vector3(); + + var dollyStart = new THREE.Vector2(); + var dollyEnd = new THREE.Vector2(); + var dollyDelta = new THREE.Vector2(); + + var phiDelta = 0; + var thetaDelta = 0; + var scale = 1; + var pan = new THREE.Vector3(); + + var lastPosition = new THREE.Vector3(); + + var STATE = { NONE : -1, ROTATE : 0, DOLLY : 1, PAN : 2, TOUCH_ROTATE : 3, TOUCH_DOLLY : 4, TOUCH_PAN : 5 }; + + var state = STATE.NONE; + + // for reset + + this.target0 = this.target.clone(); + this.position0 = this.object.position.clone(); + + // events + + var changeEvent = { type: 'change' }; + var startEvent = { type: 'start'}; + var endEvent = { type: 'end'}; + + this.rotateLeft = function ( angle ) { + + if ( angle === undefined ) { + + angle = getAutoRotationAngle(); + + } + + thetaDelta -= angle; + + }; + + this.rotateUp = function ( angle ) { + + if ( angle === undefined ) { + + angle = getAutoRotationAngle(); + + } + + phiDelta -= angle; + + }; + + // pass in distance in world space to move left + this.panLeft = function ( distance ) { + + var te = this.object.matrix.elements; + + // get X column of matrix + panOffset.set( te[ 0 ], te[ 1 ], te[ 2 ] ); + panOffset.multiplyScalar( - distance ); + + pan.add( panOffset ); + + }; + + // pass in distance in world space to move up + this.panUp = function ( distance ) { + + var te = this.object.matrix.elements; + + // get Y column of matrix + panOffset.set( te[ 4 ], te[ 5 ], te[ 6 ] ); + panOffset.multiplyScalar( distance ); + + pan.add( panOffset ); + + }; + + // pass in x,y of change desired in pixel space, + // right and down are positive + this.pan = function ( deltaX, deltaY ) { + + var element = scope.domElement === document ? scope.domElement.body : scope.domElement; + + if ( scope.object.fov !== undefined ) { + + // perspective + var position = scope.object.position; + var offset = position.clone().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 + scope.panLeft( 2 * deltaX * targetDistance / element.clientHeight ); + scope.panUp( 2 * deltaY * targetDistance / element.clientHeight ); + + } else if ( scope.object.top !== undefined ) { + + // orthographic + scope.panLeft( deltaX * (scope.object.right - scope.object.left) / element.clientWidth ); + scope.panUp( deltaY * (scope.object.top - scope.object.bottom) / element.clientHeight ); + + } else { + + // camera neither orthographic or perspective + console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.' ); + + } + + }; + + this.dollyIn = function ( dollyScale ) { + + if ( dollyScale === undefined ) { + + dollyScale = getZoomScale(); + + } + + scale /= dollyScale; + + }; + + this.dollyOut = function ( dollyScale ) { + + if ( dollyScale === undefined ) { + + dollyScale = getZoomScale(); + + } + + scale *= dollyScale; + + }; + + this.update = function () { + + var position = this.object.position; + + offset.copy( position ).sub( this.target ); + + // angle from z-axis around y-axis + + var theta = Math.atan2( offset.x, offset.z ); + + // angle from y-axis + + var phi = Math.atan2( Math.sqrt( offset.x * offset.x + offset.z * offset.z ), offset.y ); + + if ( this.autoRotate ) { + + this.rotateLeft( getAutoRotationAngle() ); + + } + + theta += thetaDelta; + phi += phiDelta; + + // restrict phi to be between desired limits + phi = Math.max( this.minPolarAngle, Math.min( this.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( this.minDistance, Math.min( this.maxDistance, radius ) ); + + // move target to panned location + this.target.add( pan ); + + offset.x = radius * Math.sin( phi ) * Math.sin( theta ); + offset.y = radius * Math.cos( phi ); + offset.z = radius * Math.sin( phi ) * Math.cos( theta ); + + position.copy( this.target ).add( offset ); + + this.object.lookAt( this.target ); + + thetaDelta = 0; + phiDelta = 0; + scale = 1; + pan.set( 0, 0, 0 ); + + if ( lastPosition.distanceTo( this.object.position ) > 0 ) { + + this.dispatchEvent( changeEvent ); + + lastPosition.copy( this.object.position ); + + } + + }; + + + this.reset = function () { + + state = STATE.NONE; + + this.target.copy( this.target0 ); + this.object.position.copy( this.position0 ); + + this.update(); + + }; + + function getAutoRotationAngle() { + + return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed; + + } + + function getZoomScale() { + + return Math.pow( 0.95, scope.zoomSpeed ); + + } + + function onMouseDown( event ) { + + if ( scope.enabled === false ) return; + event.preventDefault(); + + if ( event.button === 0 ) { + if ( scope.noRotate === true ) return; + + state = STATE.ROTATE; + + rotateStart.set( event.clientX, event.clientY ); + + } else if ( event.button === 1 ) { + if ( scope.noZoom === true ) return; + + state = STATE.DOLLY; + + dollyStart.set( event.clientX, event.clientY ); + + } else if ( event.button === 2 ) { + if ( scope.noPan === true ) return; + + state = STATE.PAN; + + panStart.set( event.clientX, event.clientY ); + + } + + scope.domElement.addEventListener( 'mousemove', onMouseMove, false ); + scope.domElement.addEventListener( 'mouseup', onMouseUp, false ); + scope.dispatchEvent( startEvent ); + + } + + function onMouseMove( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + + var element = scope.domElement === document ? scope.domElement.body : scope.domElement; + + if ( state === STATE.ROTATE ) { + + if ( scope.noRotate === true ) return; + + rotateEnd.set( event.clientX, event.clientY ); + rotateDelta.subVectors( rotateEnd, rotateStart ); + + // rotating across whole screen goes 360 degrees around + scope.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 + scope.rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed ); + + rotateStart.copy( rotateEnd ); + + } else if ( state === STATE.DOLLY ) { + + if ( scope.noZoom === true ) return; + + dollyEnd.set( event.clientX, event.clientY ); + dollyDelta.subVectors( dollyEnd, dollyStart ); + + if ( dollyDelta.y > 0 ) { + + scope.dollyIn(); + + } else { + + scope.dollyOut(); + + } + + dollyStart.copy( dollyEnd ); + + } else if ( state === STATE.PAN ) { + + if ( scope.noPan === true ) return; + + panEnd.set( event.clientX, event.clientY ); + panDelta.subVectors( panEnd, panStart ); + + scope.pan( panDelta.x, panDelta.y ); + + panStart.copy( panEnd ); + + } + + scope.update(); + + } + + function onMouseUp( /* event */ ) { + + if ( scope.enabled === false ) return; + + scope.domElement.removeEventListener( 'mousemove', onMouseMove, false ); + scope.domElement.removeEventListener( 'mouseup', onMouseUp, false ); + scope.dispatchEvent( endEvent ); + state = STATE.NONE; + + } + + function onMouseWheel( event ) { + + if ( scope.enabled === false || scope.noZoom === true ) return; + + event.preventDefault(); + + 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 ) { + + scope.dollyOut(); + + } else { + + scope.dollyIn(); + + } + + scope.update(); + scope.dispatchEvent( startEvent ); + scope.dispatchEvent( endEvent ); + + } + + function onKeyDown( event ) { + + if ( scope.enabled === false || scope.noKeys === true || scope.noPan === true ) return; + + switch ( event.keyCode ) { + + case scope.keys.UP: + scope.pan( 0, scope.keyPanSpeed ); + scope.update(); + break; + + case scope.keys.BOTTOM: + scope.pan( 0, - scope.keyPanSpeed ); + scope.update(); + break; + + case scope.keys.LEFT: + scope.pan( scope.keyPanSpeed, 0 ); + scope.update(); + break; + + case scope.keys.RIGHT: + scope.pan( - scope.keyPanSpeed, 0 ); + scope.update(); + break; + + } + + } + + function touchstart( event ) { + + if ( scope.enabled === false ) return; + + switch ( event.touches.length ) { + + case 1: // one-fingered touch: rotate + + if ( scope.noRotate === true ) return; + + state = STATE.TOUCH_ROTATE; + + rotateStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + break; + + case 2: // two-fingered touch: dolly + + if ( scope.noZoom === true ) return; + + state = STATE.TOUCH_DOLLY; + + 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 ); + break; + + case 3: // three-fingered touch: pan + + if ( scope.noPan === true ) return; + + state = STATE.TOUCH_PAN; + + panStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + break; + + default: + + state = STATE.NONE; + + } + + scope.dispatchEvent( startEvent ); + + } + + function touchmove( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + event.stopPropagation(); + + var element = scope.domElement === document ? scope.domElement.body : scope.domElement; + + switch ( event.touches.length ) { + + case 1: // one-fingered touch: rotate + + if ( scope.noRotate === true ) return; + if ( state !== STATE.TOUCH_ROTATE ) return; + + rotateEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + rotateDelta.subVectors( rotateEnd, rotateStart ); + + // rotating across whole screen goes 360 degrees around + scope.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 + scope.rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed ); + + rotateStart.copy( rotateEnd ); + + scope.update(); + break; + + case 2: // two-fingered touch: dolly + + if ( scope.noZoom === true ) return; + if ( state !== STATE.TOUCH_DOLLY ) return; + + 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 ) { + + scope.dollyOut(); + + } else { + + scope.dollyIn(); + + } + + dollyStart.copy( dollyEnd ); + + scope.update(); + break; + + case 3: // three-fingered touch: pan + + if ( scope.noPan === true ) return; + if ( state !== STATE.TOUCH_PAN ) return; + + panEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + panDelta.subVectors( panEnd, panStart ); + + scope.pan( panDelta.x, panDelta.y ); + + panStart.copy( panEnd ); + + scope.update(); + break; + + default: + + state = STATE.NONE; + + } + + } + + function touchend( /* event */ ) { + + if ( scope.enabled === false ) return; + + scope.dispatchEvent( endEvent ); + state = STATE.NONE; + + } + + this.domElement.addEventListener( 'contextmenu', function ( event ) { event.preventDefault(); }, false ); + this.domElement.addEventListener( 'mousedown', onMouseDown, false ); + this.domElement.addEventListener( 'mousewheel', onMouseWheel, false ); + this.domElement.addEventListener( 'DOMMouseScroll', onMouseWheel, false ); // firefox + + this.domElement.addEventListener( 'touchstart', touchstart, false ); + this.domElement.addEventListener( 'touchend', touchend, false ); + this.domElement.addEventListener( 'touchmove', touchmove, false ); + + window.addEventListener( 'keydown', onKeyDown, false ); + +}; + +THREE.OrbitControls.prototype = Object.create( THREE.EventDispatcher.prototype ); -- cgit v1.2.3