mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-08-25 06:30:44 +02:00
606 lines
13 KiB
JavaScript
606 lines
13 KiB
JavaScript
|
/**
|
||
|
* @author Eberhard Graether / http://egraether.com/
|
||
|
* @author Mark Lundin / http://mark-lundin.com
|
||
|
* @author Simone Manini / http://daron1337.github.io
|
||
|
* @author Luca Antiga / http://lantiga.github.io
|
||
|
*/
|
||
|
|
||
|
THREE.TrackballControls = function ( object, domElement ) {
|
||
|
|
||
|
var _this = this;
|
||
|
var STATE = { NONE: -1, ROTATE: 0, ZOOM: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_ZOOM_PAN: 4 };
|
||
|
|
||
|
this.object = object;
|
||
|
this.domElement = ( domElement !== undefined ) ? domElement : document;
|
||
|
|
||
|
// API
|
||
|
|
||
|
this.enabled = true;
|
||
|
|
||
|
this.screen = { left: 0, top: 0, width: 0, height: 0 };
|
||
|
|
||
|
this.rotateSpeed = 1.0;
|
||
|
this.zoomSpeed = 1.2;
|
||
|
this.panSpeed = 0.3;
|
||
|
|
||
|
this.noRotate = false;
|
||
|
this.noZoom = false;
|
||
|
this.noPan = false;
|
||
|
|
||
|
this.staticMoving = false;
|
||
|
this.dynamicDampingFactor = 0.2;
|
||
|
|
||
|
this.minDistance = 0;
|
||
|
this.maxDistance = Infinity;
|
||
|
|
||
|
this.keys = [ 65 /*A*/, 83 /*S*/, 68 /*D*/ ];
|
||
|
|
||
|
// internals
|
||
|
|
||
|
this.target = new THREE.Vector3();
|
||
|
|
||
|
var EPS = 0.000001;
|
||
|
|
||
|
var lastPosition = new THREE.Vector3();
|
||
|
|
||
|
var _state = STATE.NONE,
|
||
|
_prevState = STATE.NONE,
|
||
|
|
||
|
_eye = new THREE.Vector3(),
|
||
|
|
||
|
_movePrev = new THREE.Vector2(),
|
||
|
_moveCurr = new THREE.Vector2(),
|
||
|
|
||
|
_lastAxis = new THREE.Vector3(),
|
||
|
_lastAngle = 0,
|
||
|
|
||
|
_zoomStart = new THREE.Vector2(),
|
||
|
_zoomEnd = new THREE.Vector2(),
|
||
|
|
||
|
_touchZoomDistanceStart = 0,
|
||
|
_touchZoomDistanceEnd = 0,
|
||
|
|
||
|
_panStart = new THREE.Vector2(),
|
||
|
_panEnd = new THREE.Vector2();
|
||
|
|
||
|
// for reset
|
||
|
|
||
|
this.target0 = this.target.clone();
|
||
|
this.position0 = this.object.position.clone();
|
||
|
this.up0 = this.object.up.clone();
|
||
|
|
||
|
// events
|
||
|
|
||
|
var changeEvent = { type: 'change' };
|
||
|
var startEvent = { type: 'start' };
|
||
|
var endEvent = { type: 'end' };
|
||
|
|
||
|
|
||
|
// methods
|
||
|
|
||
|
this.handleResize = function () {
|
||
|
|
||
|
if ( this.domElement === document ) {
|
||
|
|
||
|
this.screen.left = 0;
|
||
|
this.screen.top = 0;
|
||
|
this.screen.width = window.innerWidth;
|
||
|
this.screen.height = window.innerHeight;
|
||
|
|
||
|
} else {
|
||
|
|
||
|
var box = this.domElement.getBoundingClientRect();
|
||
|
// adjustments come from similar code in the jquery offset() function
|
||
|
var d = this.domElement.ownerDocument.documentElement;
|
||
|
this.screen.left = box.left + window.pageXOffset - d.clientLeft;
|
||
|
this.screen.top = box.top + window.pageYOffset - d.clientTop;
|
||
|
this.screen.width = box.width;
|
||
|
this.screen.height = box.height;
|
||
|
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
this.handleEvent = function ( event ) {
|
||
|
|
||
|
if ( typeof this[ event.type ] == 'function' ) {
|
||
|
|
||
|
this[ event.type ]( event );
|
||
|
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
var getMouseOnScreen = ( function () {
|
||
|
|
||
|
var vector = new THREE.Vector2();
|
||
|
|
||
|
return function ( pageX, pageY ) {
|
||
|
|
||
|
vector.set(
|
||
|
( pageX - _this.screen.left ) / _this.screen.width,
|
||
|
( pageY - _this.screen.top ) / _this.screen.height
|
||
|
);
|
||
|
|
||
|
return vector;
|
||
|
|
||
|
};
|
||
|
|
||
|
}() );
|
||
|
|
||
|
var getMouseOnCircle = ( function () {
|
||
|
|
||
|
var vector = new THREE.Vector2();
|
||
|
|
||
|
return function ( pageX, pageY ) {
|
||
|
|
||
|
vector.set(
|
||
|
( ( pageX - _this.screen.width * 0.5 - _this.screen.left ) / ( _this.screen.width * 0.5 ) ),
|
||
|
( ( _this.screen.height + 2 * ( _this.screen.top - pageY ) ) / _this.screen.width ) // screen.width intentional
|
||
|
);
|
||
|
|
||
|
return vector;
|
||
|
};
|
||
|
|
||
|
}() );
|
||
|
|
||
|
this.rotateCamera = (function() {
|
||
|
|
||
|
var axis = new THREE.Vector3(),
|
||
|
quaternion = new THREE.Quaternion(),
|
||
|
eyeDirection = new THREE.Vector3(),
|
||
|
objectUpDirection = new THREE.Vector3(),
|
||
|
objectSidewaysDirection = new THREE.Vector3(),
|
||
|
moveDirection = new THREE.Vector3(),
|
||
|
angle;
|
||
|
|
||
|
return function () {
|
||
|
|
||
|
moveDirection.set( _moveCurr.x - _movePrev.x, _moveCurr.y - _movePrev.y, 0 );
|
||
|
angle = moveDirection.length();
|
||
|
|
||
|
if ( angle ) {
|
||
|
|
||
|
_eye.copy( _this.object.position ).sub( _this.target );
|
||
|
|
||
|
eyeDirection.copy( _eye ).normalize();
|
||
|
objectUpDirection.copy( _this.object.up ).normalize();
|
||
|
objectSidewaysDirection.crossVectors( objectUpDirection, eyeDirection ).normalize();
|
||
|
|
||
|
objectUpDirection.setLength( _moveCurr.y - _movePrev.y );
|
||
|
objectSidewaysDirection.setLength( _moveCurr.x - _movePrev.x );
|
||
|
|
||
|
moveDirection.copy( objectUpDirection.add( objectSidewaysDirection ) );
|
||
|
|
||
|
axis.crossVectors( moveDirection, _eye ).normalize();
|
||
|
|
||
|
angle *= _this.rotateSpeed;
|
||
|
quaternion.setFromAxisAngle( axis, angle );
|
||
|
|
||
|
_eye.applyQuaternion( quaternion );
|
||
|
_this.object.up.applyQuaternion( quaternion );
|
||
|
|
||
|
_lastAxis.copy( axis );
|
||
|
_lastAngle = angle;
|
||
|
|
||
|
}
|
||
|
|
||
|
else if ( !_this.staticMoving && _lastAngle ) {
|
||
|
|
||
|
_lastAngle *= Math.sqrt( 1.0 - _this.dynamicDampingFactor );
|
||
|
_eye.copy( _this.object.position ).sub( _this.target );
|
||
|
quaternion.setFromAxisAngle( _lastAxis, _lastAngle );
|
||
|
_eye.applyQuaternion( quaternion );
|
||
|
_this.object.up.applyQuaternion( quaternion );
|
||
|
|
||
|
}
|
||
|
|
||
|
_movePrev.copy( _moveCurr );
|
||
|
|
||
|
};
|
||
|
|
||
|
}());
|
||
|
|
||
|
|
||
|
this.zoomCamera = function () {
|
||
|
|
||
|
var factor;
|
||
|
|
||
|
if ( _state === STATE.TOUCH_ZOOM_PAN ) {
|
||
|
|
||
|
factor = _touchZoomDistanceStart / _touchZoomDistanceEnd;
|
||
|
_touchZoomDistanceStart = _touchZoomDistanceEnd;
|
||
|
_eye.multiplyScalar( factor );
|
||
|
|
||
|
} else {
|
||
|
|
||
|
factor = 1.0 + ( _zoomEnd.y - _zoomStart.y ) * _this.zoomSpeed;
|
||
|
|
||
|
if ( factor !== 1.0 && factor > 0.0 ) {
|
||
|
|
||
|
_eye.multiplyScalar( factor );
|
||
|
|
||
|
if ( _this.staticMoving ) {
|
||
|
|
||
|
_zoomStart.copy( _zoomEnd );
|
||
|
|
||
|
} else {
|
||
|
|
||
|
_zoomStart.y += ( _zoomEnd.y - _zoomStart.y ) * this.dynamicDampingFactor;
|
||
|
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
this.panCamera = (function() {
|
||
|
|
||
|
var mouseChange = new THREE.Vector2(),
|
||
|
objectUp = new THREE.Vector3(),
|
||
|
pan = new THREE.Vector3();
|
||
|
|
||
|
return function () {
|
||
|
|
||
|
mouseChange.copy( _panEnd ).sub( _panStart );
|
||
|
|
||
|
if ( mouseChange.lengthSq() ) {
|
||
|
|
||
|
mouseChange.multiplyScalar( _eye.length() * _this.panSpeed );
|
||
|
|
||
|
pan.copy( _eye ).cross( _this.object.up ).setLength( mouseChange.x );
|
||
|
pan.add( objectUp.copy( _this.object.up ).setLength( mouseChange.y ) );
|
||
|
|
||
|
_this.object.position.add( pan );
|
||
|
_this.target.add( pan );
|
||
|
|
||
|
if ( _this.staticMoving ) {
|
||
|
|
||
|
_panStart.copy( _panEnd );
|
||
|
|
||
|
} else {
|
||
|
|
||
|
_panStart.add( mouseChange.subVectors( _panEnd, _panStart ).multiplyScalar( _this.dynamicDampingFactor ) );
|
||
|
|
||
|
}
|
||
|
|
||
|
}
|
||
|
};
|
||
|
|
||
|
}());
|
||
|
|
||
|
this.checkDistances = function () {
|
||
|
|
||
|
if ( !_this.noZoom || !_this.noPan ) {
|
||
|
|
||
|
if ( _eye.lengthSq() > _this.maxDistance * _this.maxDistance ) {
|
||
|
|
||
|
_this.object.position.addVectors( _this.target, _eye.setLength( _this.maxDistance ) );
|
||
|
|
||
|
}
|
||
|
|
||
|
if ( _eye.lengthSq() < _this.minDistance * _this.minDistance ) {
|
||
|
|
||
|
_this.object.position.addVectors( _this.target, _eye.setLength( _this.minDistance ) );
|
||
|
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
this.update = function () {
|
||
|
|
||
|
_eye.subVectors( _this.object.position, _this.target );
|
||
|
|
||
|
if ( !_this.noRotate ) {
|
||
|
|
||
|
_this.rotateCamera();
|
||
|
|
||
|
}
|
||
|
|
||
|
if ( !_this.noZoom ) {
|
||
|
|
||
|
_this.zoomCamera();
|
||
|
|
||
|
}
|
||
|
|
||
|
if ( !_this.noPan ) {
|
||
|
|
||
|
_this.panCamera();
|
||
|
|
||
|
}
|
||
|
|
||
|
_this.object.position.addVectors( _this.target, _eye );
|
||
|
|
||
|
_this.checkDistances();
|
||
|
|
||
|
_this.object.lookAt( _this.target );
|
||
|
|
||
|
if ( lastPosition.distanceToSquared( _this.object.position ) > EPS ) {
|
||
|
|
||
|
_this.dispatchEvent( changeEvent );
|
||
|
|
||
|
lastPosition.copy( _this.object.position );
|
||
|
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
this.reset = function () {
|
||
|
|
||
|
_state = STATE.NONE;
|
||
|
_prevState = STATE.NONE;
|
||
|
|
||
|
_this.target.copy( _this.target0 );
|
||
|
_this.object.position.copy( _this.position0 );
|
||
|
_this.object.up.copy( _this.up0 );
|
||
|
|
||
|
_eye.subVectors( _this.object.position, _this.target );
|
||
|
|
||
|
_this.object.lookAt( _this.target );
|
||
|
|
||
|
_this.dispatchEvent( changeEvent );
|
||
|
|
||
|
lastPosition.copy( _this.object.position );
|
||
|
|
||
|
};
|
||
|
|
||
|
// listeners
|
||
|
|
||
|
function keydown( event ) {
|
||
|
|
||
|
if ( _this.enabled === false ) return;
|
||
|
|
||
|
window.removeEventListener( 'keydown', keydown );
|
||
|
|
||
|
_prevState = _state;
|
||
|
|
||
|
if ( _state !== STATE.NONE ) {
|
||
|
|
||
|
return;
|
||
|
|
||
|
} else if ( event.keyCode === _this.keys[ STATE.ROTATE ] && !_this.noRotate ) {
|
||
|
|
||
|
_state = STATE.ROTATE;
|
||
|
|
||
|
} else if ( event.keyCode === _this.keys[ STATE.ZOOM ] && !_this.noZoom ) {
|
||
|
|
||
|
_state = STATE.ZOOM;
|
||
|
|
||
|
} else if ( event.keyCode === _this.keys[ STATE.PAN ] && !_this.noPan ) {
|
||
|
|
||
|
_state = STATE.PAN;
|
||
|
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
function keyup( event ) {
|
||
|
|
||
|
if ( _this.enabled === false ) return;
|
||
|
|
||
|
_state = _prevState;
|
||
|
|
||
|
window.addEventListener( 'keydown', keydown, false );
|
||
|
|
||
|
}
|
||
|
|
||
|
function mousedown( event ) {
|
||
|
|
||
|
if ( _this.enabled === false ) return;
|
||
|
|
||
|
event.preventDefault();
|
||
|
event.stopPropagation();
|
||
|
|
||
|
if ( _state === STATE.NONE ) {
|
||
|
|
||
|
_state = event.button;
|
||
|
|
||
|
}
|
||
|
|
||
|
if ( _state === STATE.ROTATE && !_this.noRotate ) {
|
||
|
|
||
|
_moveCurr.copy( getMouseOnCircle( event.pageX, event.pageY ) );
|
||
|
_movePrev.copy(_moveCurr);
|
||
|
|
||
|
} else if ( _state === STATE.ZOOM && !_this.noZoom ) {
|
||
|
|
||
|
_zoomStart.copy( getMouseOnScreen( event.pageX, event.pageY ) );
|
||
|
_zoomEnd.copy(_zoomStart);
|
||
|
|
||
|
} else if ( _state === STATE.PAN && !_this.noPan ) {
|
||
|
|
||
|
_panStart.copy( getMouseOnScreen( event.pageX, event.pageY ) );
|
||
|
_panEnd.copy(_panStart);
|
||
|
|
||
|
}
|
||
|
|
||
|
document.addEventListener( 'mousemove', mousemove, false );
|
||
|
document.addEventListener( 'mouseup', mouseup, false );
|
||
|
|
||
|
_this.dispatchEvent( startEvent );
|
||
|
|
||
|
}
|
||
|
|
||
|
function mousemove( event ) {
|
||
|
|
||
|
if ( _this.enabled === false ) return;
|
||
|
|
||
|
event.preventDefault();
|
||
|
event.stopPropagation();
|
||
|
|
||
|
if ( _state === STATE.ROTATE && !_this.noRotate ) {
|
||
|
|
||
|
_movePrev.copy(_moveCurr);
|
||
|
_moveCurr.copy( getMouseOnCircle( event.pageX, event.pageY ) );
|
||
|
|
||
|
} else if ( _state === STATE.ZOOM && !_this.noZoom ) {
|
||
|
|
||
|
_zoomEnd.copy( getMouseOnScreen( event.pageX, event.pageY ) );
|
||
|
|
||
|
} else if ( _state === STATE.PAN && !_this.noPan ) {
|
||
|
|
||
|
_panEnd.copy( getMouseOnScreen( event.pageX, event.pageY ) );
|
||
|
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
function mouseup( event ) {
|
||
|
|
||
|
if ( _this.enabled === false ) return;
|
||
|
|
||
|
event.preventDefault();
|
||
|
event.stopPropagation();
|
||
|
|
||
|
_state = STATE.NONE;
|
||
|
|
||
|
document.removeEventListener( 'mousemove', mousemove );
|
||
|
document.removeEventListener( 'mouseup', mouseup );
|
||
|
_this.dispatchEvent( endEvent );
|
||
|
|
||
|
}
|
||
|
|
||
|
function mousewheel( event ) {
|
||
|
|
||
|
if ( _this.enabled === false ) return;
|
||
|
|
||
|
event.preventDefault();
|
||
|
event.stopPropagation();
|
||
|
|
||
|
var delta = 0;
|
||
|
|
||
|
if ( event.wheelDelta ) { // WebKit / Opera / Explorer 9
|
||
|
|
||
|
delta = event.wheelDelta / 40;
|
||
|
|
||
|
} else if ( event.detail ) { // Firefox
|
||
|
|
||
|
delta = - event.detail / 3;
|
||
|
|
||
|
}
|
||
|
|
||
|
_zoomStart.y += delta * 0.01;
|
||
|
_this.dispatchEvent( startEvent );
|
||
|
_this.dispatchEvent( endEvent );
|
||
|
|
||
|
}
|
||
|
|
||
|
function touchstart( event ) {
|
||
|
|
||
|
if ( _this.enabled === false ) return;
|
||
|
|
||
|
switch ( event.touches.length ) {
|
||
|
|
||
|
case 1:
|
||
|
_state = STATE.TOUCH_ROTATE;
|
||
|
_moveCurr.copy( getMouseOnCircle( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ) );
|
||
|
_movePrev.copy(_moveCurr);
|
||
|
break;
|
||
|
|
||
|
case 2:
|
||
|
_state = STATE.TOUCH_ZOOM_PAN;
|
||
|
var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
|
||
|
var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
|
||
|
_touchZoomDistanceEnd = _touchZoomDistanceStart = Math.sqrt( dx * dx + dy * dy );
|
||
|
|
||
|
var x = ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ) / 2;
|
||
|
var y = ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ) / 2;
|
||
|
_panStart.copy( getMouseOnScreen( x, y ) );
|
||
|
_panEnd.copy( _panStart );
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
_state = STATE.NONE;
|
||
|
|
||
|
}
|
||
|
_this.dispatchEvent( startEvent );
|
||
|
|
||
|
|
||
|
}
|
||
|
|
||
|
function touchmove( event ) {
|
||
|
|
||
|
if ( _this.enabled === false ) return;
|
||
|
|
||
|
event.preventDefault();
|
||
|
event.stopPropagation();
|
||
|
|
||
|
switch ( event.touches.length ) {
|
||
|
|
||
|
case 1:
|
||
|
_movePrev.copy(_moveCurr);
|
||
|
_moveCurr.copy( getMouseOnCircle( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ) );
|
||
|
break;
|
||
|
|
||
|
case 2:
|
||
|
var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
|
||
|
var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
|
||
|
_touchZoomDistanceEnd = Math.sqrt( dx * dx + dy * dy );
|
||
|
|
||
|
var x = ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ) / 2;
|
||
|
var y = ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ) / 2;
|
||
|
_panEnd.copy( getMouseOnScreen( x, y ) );
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
_state = STATE.NONE;
|
||
|
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
function touchend( event ) {
|
||
|
|
||
|
if ( _this.enabled === false ) return;
|
||
|
|
||
|
switch ( event.touches.length ) {
|
||
|
|
||
|
case 1:
|
||
|
_movePrev.copy(_moveCurr);
|
||
|
_moveCurr.copy( getMouseOnCircle( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ) );
|
||
|
break;
|
||
|
|
||
|
case 2:
|
||
|
_touchZoomDistanceStart = _touchZoomDistanceEnd = 0;
|
||
|
|
||
|
var x = ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ) / 2;
|
||
|
var y = ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ) / 2;
|
||
|
_panEnd.copy( getMouseOnScreen( x, y ) );
|
||
|
_panStart.copy( _panEnd );
|
||
|
break;
|
||
|
|
||
|
}
|
||
|
|
||
|
_state = STATE.NONE;
|
||
|
_this.dispatchEvent( endEvent );
|
||
|
|
||
|
}
|
||
|
|
||
|
this.domElement.addEventListener( 'contextmenu', function ( event ) { event.preventDefault(); }, false );
|
||
|
|
||
|
this.domElement.addEventListener( 'mousedown', mousedown, false );
|
||
|
|
||
|
this.domElement.addEventListener( 'mousewheel', mousewheel, false );
|
||
|
this.domElement.addEventListener( 'DOMMouseScroll', mousewheel, false ); // firefox
|
||
|
|
||
|
this.domElement.addEventListener( 'touchstart', touchstart, false );
|
||
|
this.domElement.addEventListener( 'touchend', touchend, false );
|
||
|
this.domElement.addEventListener( 'touchmove', touchmove, false );
|
||
|
|
||
|
window.addEventListener( 'keydown', keydown, false );
|
||
|
window.addEventListener( 'keyup', keyup, false );
|
||
|
|
||
|
this.handleResize();
|
||
|
|
||
|
// force an update at start
|
||
|
this.update();
|
||
|
|
||
|
};
|
||
|
|
||
|
THREE.TrackballControls.prototype = Object.create( THREE.EventDispatcher.prototype );
|
||
|
THREE.TrackballControls.prototype.constructor = THREE.TrackballControls;
|