Untitled diff
建立於 差異永不過期
/**
/**
* @author qiao / https://github.com/qiao
* @author qiao / https://github.com/qiao
* @author mrdoob / http://mrdoob.com
* @author mrdoob / http://mrdoob.com
* @author alteredq / http://alteredqualia.com/
* @author alteredq / http://alteredqualia.com/
* @author WestLangley / http://github.com/WestLangley
* @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 ) {
THREE.OrbitControls = function ( object, domElement ) {
this.object = object;
this.object = object;
this.domElement = ( domElement !== undefined ) ? domElement : document;
this.domElement = ( domElement !== undefined ) ? domElement : document;
// API
// API
// Set to false to disable this control
this.enabled = true;
this.enabled = true;
this.center = new THREE.Vector3();
// "target" sets the location of focus, where the control orbits around
// and where it pans with respect to.
this.target = new THREE.Vector3();
this.userZoom = true;
// center is old, deprecated; use "target" instead
this.userZoomSpeed = 1.0;
this.center = this.target;
this.userRotate = true;
// This option actually enables dollying in and out; left as "zoom" for
this.userRotateSpeed = 1.0;
// backwards compatibility
this.noZoom = false;
this.zoomSpeed = 1.0;
this.userPan = true;
// Limits to how far you can dolly in and out
this.userPanSpeed = 2.0;
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.autoRotate = false;
this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60
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.minPolarAngle = 0; // radians
this.maxPolarAngle = Math.PI; // radians
this.maxPolarAngle = Math.PI; // radians
this.minDistance = 0;
// Set to true to disable use of the keys
this.maxDistance = Infinity;
this.noKeys = false;
// 65 /*A*/, 83 /*S*/, 68 /*D*/
// The four arrow keys
this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40, ROTATE: 65, ZOOM: 83, PAN: 68 };
this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 };
////////////
// internals
// internals
var scope = this;
var scope = this;
var EPS = 0.000001;
var EPS = 0.000001;
var PIXELS_PER_ROUND = 1800;
var rotateStart = new THREE.Vector2();
var rotateStart = new THREE.Vector2();
var rotateEnd = new THREE.Vector2();
var rotateEnd = new THREE.Vector2();
var rotateDelta = new THREE.Vector2();
var rotateDelta = new THREE.Vector2();
var zoomStart = new THREE.Vector2();
var panStart = new THREE.Vector2();
var zoomEnd = new THREE.Vector2();
var panEnd = new THREE.Vector2();
var zoomDelta = 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 phiDelta = 0;
var thetaDelta = 0;
var thetaDelta = 0;
var scale = 1;
var scale = 1;
var pan = new THREE.Vector3();
var lastPosition = new THREE.Vector3();
var lastPosition = new THREE.Vector3();
var lastQuaternion = new THREE.Quaternion();
var STATE = { NONE: -1, ROTATE: 0, ZOOM: 1, PAN: 2 };
var STATE = { NONE : -1, ROTATE : 0, DOLLY : 1, PAN : 2, TOUCH_ROTATE : 3, TOUCH_DOLLY : 4, TOUCH_PAN : 5 };
var state = STATE.NONE;
var state = STATE.NONE;
// for reset
this.target0 = this.target.clone();
this.position0 = this.object.position.clone();
// 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();
// events
// events
var changeEvent = { type: 'change' };
var changeEvent = { type: 'change' };
var startEvent = { type: 'start'};
var endEvent = { type: 'end'};
this.rotateLeft = function ( angle ) {
this.rotateLeft = function ( angle ) {
if ( angle === undefined ) {
if ( angle === undefined ) {
angle = getAutoRotationAngle();
angle = getAutoRotationAngle();
}
}
thetaDelta -= angle;
thetaDelta -= angle;
};
};
this.rotateRight = function ( angle ) {
if ( angle === undefined ) {
Text moved with changes to lines 224-228 (90.3% similarity)
angle = getAutoRotationAngle();
}
thetaDelta += angle;
};
this.rotateUp = function ( angle ) {
this.rotateUp = function ( angle ) {
if ( angle === undefined ) {
if ( angle === undefined ) {
angle = getAutoRotationAngle();
angle = getAutoRotationAngle();
}
}
phiDelta -= angle;
phiDelta -= angle;
};
};
this.rotateDown = function ( angle ) {
// pass in distance in world space to move left
this.panLeft = function ( distance ) {
if ( angle === undefined ) {
var te = this.object.matrix.elements;
angle = getAutoRotationAngle();
// get X column of matrix
panOffset.set( te[ 0 ], te[ 1 ], te[ 2 ] );
panOffset.multiplyScalar( - distance );
pan.add( panOffset );
}
};
phiDelta += angle;
// 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 ) {
this.zoomIn = function ( zoomScale ) {
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
if ( zoomScale === undefined ) {
if ( scope.object.fov !== undefined ) {
zoomScale = getZoomScale();
// 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.' );
}
}
scale /= zoomScale;
};
};
this.zoomOut = function ( zoomScale ) {
this.dollyIn = function ( dollyScale ) {
if ( zoomScale === undefined ) {
if ( dollyScale === undefined ) {
zoomScale = getZoomScale();
dollyScale = getZoomScale();
}
}
scale *= zoomScale;
scale /= dollyScale;
};
};
this.pan = function ( distance ) {
this.dollyOut = function ( dollyScale ) {
distance.transformDirection( this.object.matrix );
if ( dollyScale === undefined ) {
distance.multiplyScalar( scope.userPanSpeed );
Text moved with changes from lines 85-89 (90.3% similarity)
this.object.position.add( distance );
dollyScale = getZoomScale();
this.center.add( distance );
}
scale *= dollyScale;
};
};
this.update = function () {
this.update = function () {
var position = this.object.position;
var position = this.object.position;
var offset = position.clone().sub( this.center );
offset.copy( position ).sub( this.target );
// rotate offset to "y-axis-is-up" space
offset.applyQuaternion( quat );
// angle from z-axis around y-axis
// angle from z-axis around y-axis
var theta = Math.atan2( offset.x, offset.z );
var theta = Math.atan2( offset.x, offset.z );
// angle from y-axis
// angle from y-axis
var phi = Math.atan2( Math.sqrt( offset.x * offset.x + offset.z * offset.z ), offset.y );
var phi = Math.atan2( Math.sqrt( offset.x * offset.x + offset.z * offset.z ), offset.y );
if ( this.autoRotate ) {
if ( this.autoRotate ) {
this.rotateLeft( getAutoRotationAngle() );
this.rotateLeft( getAutoRotationAngle() );
}
}
theta += thetaDelta;
theta += thetaDelta;
phi += phiDelta;
phi += phiDelta;
// restrict phi to be between desired limits
// restrict phi to be between desired limits
phi = Math.max( this.minPolarAngle, Math.min( this.maxPolarAngle, phi ) );
phi = Math.max( this.minPolarAngle, Math.min( this.maxPolarAngle, phi ) );
// restrict phi to be betwee EPS and PI-EPS
// restrict phi to be betwee EPS and PI-EPS
phi = Math.max( EPS, Math.min( Math.PI - EPS, phi ) );
phi = Math.max( EPS, Math.min( Math.PI - EPS, phi ) );
var radius = offset.length() * scale;
var radius = offset.length() * scale;
// restrict radius to be between desired limits
// restrict radius to be between desired limits
radius = Math.max( this.minDistance, Math.min( this.maxDistance, radius ) );
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.x = radius * Math.sin( phi ) * Math.sin( theta );
offset.y = radius * Math.cos( phi );
offset.y = radius * Math.cos( phi );
offset.z = radius * Math.sin( phi ) * Math.cos( theta );
offset.z = radius * Math.sin( phi ) * Math.cos( theta );
position.copy( this.center ).add( offset );
// rotate offset back to "camera-up-vector-is-up" space
offset.applyQuaternion( quatInverse );
this.object.lookAt( this.center );
position.copy( this.target ).add( offset );
this.object.lookAt( this.target );
thetaDelta = 0;
thetaDelta = 0;
phiDelta = 0;
phiDelta = 0;
scale = 1;
scale = 1;
pan.set( 0, 0, 0 );
if ( lastPosition.distanceTo( this.object.position ) > 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 ( lastPosition.distanceToSquared( this.object.position ) > EPS
|| 8 * (1 - lastQuaternion.dot(this.object.quaternion)) > EPS ) {
this.dispatchEvent( changeEvent );
this.dispatchEvent( changeEvent );
lastPosition.copy( this.object.position );
lastPosition.copy( this.object.position );
lastQuaternion.copy (this.object.quaternion );
}
}
};
};
this.reset = function () {
state = STATE.NONE;
this.target.copy( this.target0 );
this.object.position.copy( this.position0 );
this.update();
};
function getAutoRotationAngle() {
function getAutoRotationAngle() {
return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;
return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;
}
}
function getZoomScale() {
function getZoomScale() {
return Math.pow( 0.95, scope.userZoomSpeed );
return Math.pow( 0.95, scope.zoomSpeed );
}
}
function onMouseDown( event ) {
function onMouseDown( event ) {
if ( scope.enabled === false ) return;
if ( scope.enabled === false ) return;
if ( scope.userRotate === false ) return;
event.preventDefault();
event.preventDefault();
if ( state === STATE.NONE )
if ( event.button === 0 ) {
{
if ( scope.noRotate === true ) return;
if ( event.button === 0 )
state = STATE.ROTATE;
if ( event.button === 1 )
state = STATE.ZOOM;
if ( event.button === 2 )
state = STATE.PAN;
}
if ( state === STATE.ROTATE ) {
//state = STATE.ROTATE;
state = STATE.ROTATE;
rotateStart.set( event.clientX, event.clientY );
rotateStart.set( event.clientX, event.clientY );
} else if ( state === STATE.ZOOM ) {
} else if ( event.button === 1 ) {
if ( scope.noZoom === true ) return;
//state = STATE.ZOOM;
state = STATE.DOLLY;
zoomStart.set( event.clientX, event.clientY );
dollyStart.set( event.clientX, event.clientY );
} else if ( state === STATE.PAN ) {
} else if ( event.button === 2 ) {
if ( scope.noPan === true ) return;
//state = STATE.PAN;
state = STATE.PAN;
panStart.set( event.clientX, event.clientY );
}
}
document.addEventListener( 'mousemove', onMouseMove, false );
document.addEventListener( 'mousemove', onMouseMove, false );
document.addEventListener( 'mouseup', onMouseUp, false );
document.addEventListener( 'mouseup', onMouseUp, false );
scope.dispatchEvent( startEvent );
}
}
function onMouseMove( event ) {
function onMouseMove( event ) {
if ( scope.enabled === false ) return;
if ( scope.enabled === false ) return;
event.preventDefault();
event.preventDefault();
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
if ( state === STATE.ROTATE ) {
if ( state === STATE.ROTATE ) {
if ( scope.noRotate === true ) return;
rotateEnd.set( event.clientX, event.clientY );
rotateEnd.set( event.clientX, event.clientY );
rotateDelta.subVectors( rotateEnd, rotateStart );
rotateDelta.subVectors( rotateEnd, rotateStart );
scope.rotateLeft( 2 * Math.PI * rotateDelta.x / PIXELS_PER_ROUND * scope.userRotateSpeed );
// rotating across whole screen goes 360 degrees around
scope.rotateUp( 2 * Math.PI * rotateDelta.y / PIXELS_PER_ROUND * scope.userRotateSpeed );
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 );
rotateStart.copy( rotateEnd );
} else if ( state === STATE.ZOOM ) {
} else if ( state === STATE.DOLLY ) {
zoomEnd.set( event.clientX, event.clientY );
if ( scope.noZoom === true ) return;
zoomDelta.subVectors( zoomEnd, zoomStart );
if ( zoomDelta.y > 0 ) {
dollyEnd.set( event.clientX, event.clientY );
dollyDelta.subVectors( dollyEnd, dollyStart );
scope.zoomIn();
if ( dollyDelta.y > 0 ) {
scope.dollyIn();
} else {
} else {
scope.zoomOut();
scope.dollyOut();
}
}
zoomStart.copy( zoomEnd );
dollyStart.copy( dollyEnd );
} else if ( state === STATE.PAN ) {
} else if ( state === STATE.PAN ) {
var movementX = event.movementX || event.mozMovementX || event.webkitMovementX || 0;
if ( scope.noPan === true ) return;
var movementY = event.movementY || event.mozMovementY || event.webkitMovementY || 0;
scope.pan( new THREE.Vector3( - movementX, movementY, 0 ) );
panEnd.set( event.clientX, event.clientY );
panDelta.subVectors( panEnd, panStart );
scope.pan( panDelta.x, panDelta.y );
panStart.copy( panEnd );
}
}
scope.update();
}
}
function onMouseUp( event ) {
function onMouseUp( /* event */ ) {
if ( scope.enabled === false ) return;
if ( scope.enabled === false ) return;
if ( scope.userRotate === false ) return;
document.removeEventListener( 'mousemove', onMouseMove, false );
document.removeEventListener( 'mousemove', onMouseMove, false );
document.removeEventListener( 'mouseup', onMouseUp, false );
document.removeEventListener( 'mouseup', onMouseUp, false );
scope.dispatchEvent( endEvent );
state = STATE.NONE;
state = STATE.NONE;
}
}
function onMouseWheel( event ) {
function onMouseWheel( event ) {
if ( scope.enabled === false ) return;
if ( scope.enabled === false || scope.noZoom === true ) return;
if ( scope.userZoom === false ) return;
event.preventDefault();
event.stopPropagation();
var delta = 0;
var delta = 0;
if ( event.wheelDelta ) { // WebKit / Opera / Explorer 9
if ( event.wheelDelta !== undefined ) { // WebKit / Opera / Explorer 9
delta = event.wheelDelta;
delta = event.wheelDelta;
} else if ( event.detail ) { // Firefox
} else if ( event.detail !== undefined ) { // Firefox
delta = - event.detail;
delta = - event.detail;
}
}
if ( delta > 0 ) {
if ( delta > 0 ) {
scope.zoomOut();
scope.dollyOut();
} else {
} else {
scope.zoomIn();
scope.dollyIn();
}
}
scope.update();
scope.dispatchEvent( startEvent );
scope.dispatchEvent( endEvent );
}
}
function onKeyDown( event ) {
function onKeyDown( event ) {
if ( scope.enabled === false ) return;
if ( scope.enabled === false || scope.noKeys === true || scope.noPan === true ) return;
if ( scope.userPan === false ) return;
switch ( event.keyCode ) {
switch ( event.keyCode ) {
/*case scope.keys.UP:
case scope.keys.UP:
scope.pan( new THREE.Vector3( 0, 1, 0 ) );
scope.pan( 0, scope.keyPanSpeed );
scope.update();
break;
break;
case scope.keys.BOTTOM:
case scope.keys.BOTTOM:
scope.pan( new THREE.Vector3( 0, - 1, 0 ) );
scope.pan( 0, - scope.keyPanSpeed );
scope.update();
break;
break;
case scope.keys.LEFT:
case scope.keys.LEFT:
scope.pan( new THREE.Vector3( - 1, 0, 0 ) );
scope.pan( scope.keyPanSpeed, 0 );
scope.update();
break;
break;
case scope.keys.RIGHT:
case scope.keys.RIGHT:
scope.pan( new THREE.Vector3( 1, 0, 0 ) );
scope.pan( - scope.keyPanSpeed, 0 );
scope.update();
break;
break;
*/
case scope.keys.ROTATE:
}
state = STATE.ROTATE;
}
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;
break;
case scope.keys.ZOOM:
state = STATE.ZOOM;
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;
break;
case scope.keys.PAN:
state = STATE.PAN;
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;
break;
default:
state = STATE.NONE;
}
}
scope.dispatchEvent( startEvent );
}
}
function onKeyUp( event ) {
switch ( event.keyCode ) {
function touchmove( event ) {
case scope.keys.ROTATE:
if ( scope.enabled === false ) return;
case scope.keys.ZOOM:
case scope.keys.PAN:
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;
state = STATE.NONE;
break;
}
}
}
}
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( 'contextmenu', function ( event ) { event.preventDefault(); }, false );
this.domElement.addEventListener( 'mousedown', onMouseDown, false );
this.domElement.addEventListener( 'mousedown', onMouseDown, false );
this.domElement.addEventListener( 'mousewheel', onMouseWheel, false );
this.domElement.addEventListener( 'mousewheel', onMouseWheel, false );
this.domElement.addEventListener( 'DOMMouseScroll', onMouseWheel, false ); // firefox
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 );
window.addEventListener( 'keydown', onKeyDown, false );
window.addEventListener( 'keyup', onKeyUp, false );
// force an update at start
this.update();
};
};
THREE.OrbitControls.prototype = Object.create( THREE.EventDispatcher.prototype );
THREE.OrbitControls.prototype = Object.create( THREE.EventDispatcher.prototype );