You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1248 lines
26 KiB
1248 lines
26 KiB
import {
|
|
EventDispatcher,
|
|
MOUSE,
|
|
Quaternion,
|
|
Spherical,
|
|
TOUCH,
|
|
Vector2,
|
|
Vector3
|
|
} from '../../../../build/three.module.js';
|
|
|
|
var CameraControls = function ( object, domElement ) {
|
|
|
|
if ( domElement === undefined ) console.warn( 'THREE.CameraControls: The second parameter "domElement" is now mandatory.' );
|
|
if ( domElement === document ) console.error( 'THREE.CameraControls: "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 Vector3();
|
|
|
|
// Set to true to enable trackball behavior
|
|
this.trackball = false;
|
|
|
|
// 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, must be a sub-interval of the interval [ - Math.PI, Math.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 enables dollying in and out; property named 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 = false; // if true, pan in screen-space
|
|
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
|
|
// auto-rotate is not supported for trackball behavior
|
|
this.autoRotate = false;
|
|
this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60
|
|
|
|
// Set to false to disable use of the keys
|
|
this.enableKeys = true;
|
|
|
|
// The four arrow keys
|
|
this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 };
|
|
|
|
// Mouse buttons
|
|
this.mouseButtons = { LEFT: MOUSE.ROTATE, MIDDLE: MOUSE.DOLLY, RIGHT: MOUSE.PAN };
|
|
|
|
// Touch fingers
|
|
this.touches = { ONE: TOUCH.ROTATE, TWO: TOUCH.DOLLY_PAN };
|
|
|
|
// for reset
|
|
this.target0 = this.target.clone();
|
|
this.position0 = this.object.position.clone();
|
|
this.quaternion0 = this.object.quaternion.clone();
|
|
this.zoom0 = this.object.zoom;
|
|
|
|
//
|
|
// public methods
|
|
//
|
|
|
|
this.getPolarAngle = function () {
|
|
|
|
return spherical.phi;
|
|
|
|
};
|
|
|
|
this.getAzimuthalAngle = function () {
|
|
|
|
return spherical.theta;
|
|
|
|
};
|
|
|
|
this.saveState = function () {
|
|
|
|
scope.target0.copy( scope.target );
|
|
scope.position0.copy( scope.object.position );
|
|
scope.quaternion0.copy( scope.object.quaternion );
|
|
scope.zoom0 = scope.object.zoom;
|
|
|
|
};
|
|
|
|
this.reset = function () {
|
|
|
|
scope.target.copy( scope.target0 );
|
|
scope.object.position.copy( scope.position0 );
|
|
scope.object.quaternion.copy( scope.quaternion0 );
|
|
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 Vector3();
|
|
|
|
// so camera.up is the orbit axis
|
|
var quat = new Quaternion().setFromUnitVectors( object.up, new Vector3( 0, 1, 0 ) );
|
|
var quatInverse = quat.clone().invert();
|
|
|
|
var lastPosition = new Vector3();
|
|
var lastQuaternion = new Quaternion();
|
|
|
|
var q = new Quaternion();
|
|
var vec = new Vector3();
|
|
|
|
return function update() {
|
|
|
|
var position = scope.object.position;
|
|
|
|
offset.copy( position ).sub( scope.target );
|
|
|
|
if ( scope.trackball ) {
|
|
|
|
// rotate around screen-space y-axis
|
|
|
|
if ( sphericalDelta.theta ) {
|
|
|
|
vec.set( 0, 1, 0 ).applyQuaternion( scope.object.quaternion );
|
|
|
|
var factor = ( scope.enableDamping ) ? scope.dampingFactor : 1;
|
|
|
|
q.setFromAxisAngle( vec, sphericalDelta.theta * factor );
|
|
|
|
scope.object.quaternion.premultiply( q );
|
|
offset.applyQuaternion( q );
|
|
|
|
}
|
|
|
|
// rotate around screen-space x-axis
|
|
|
|
if ( sphericalDelta.phi ) {
|
|
|
|
vec.set( 1, 0, 0 ).applyQuaternion( scope.object.quaternion );
|
|
|
|
var factor = ( scope.enableDamping ) ? scope.dampingFactor : 1;
|
|
|
|
q.setFromAxisAngle( vec, sphericalDelta.phi * factor );
|
|
|
|
scope.object.quaternion.premultiply( q );
|
|
offset.applyQuaternion( q );
|
|
|
|
}
|
|
|
|
offset.multiplyScalar( scale );
|
|
offset.clampLength( scope.minDistance, scope.maxDistance );
|
|
|
|
} else {
|
|
|
|
// rotate offset to "y-axis-is-up" space
|
|
offset.applyQuaternion( quat );
|
|
|
|
if ( scope.autoRotate && state === STATE.NONE ) {
|
|
|
|
rotateLeft( getAutoRotationAngle() );
|
|
|
|
}
|
|
|
|
spherical.setFromVector3( offset );
|
|
|
|
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
|
|
spherical.theta = Math.max( scope.minAzimuthAngle, Math.min( scope.maxAzimuthAngle, 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 ) );
|
|
|
|
offset.setFromSpherical( spherical );
|
|
|
|
// rotate offset back to "camera-up-vector-is-up" space
|
|
offset.applyQuaternion( quatInverse );
|
|
|
|
}
|
|
|
|
// move target to panned location
|
|
|
|
if ( scope.enableDamping === true ) {
|
|
|
|
scope.target.addScaledVector( panOffset, scope.dampingFactor );
|
|
|
|
} else {
|
|
|
|
scope.target.add( panOffset );
|
|
|
|
}
|
|
|
|
position.copy( scope.target ).add( offset );
|
|
|
|
if ( scope.trackball === false ) {
|
|
|
|
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 );
|
|
scope.domElement.removeEventListener( 'mousedown', onMouseDown, false );
|
|
scope.domElement.removeEventListener( 'wheel', onMouseWheel, false );
|
|
|
|
scope.domElement.removeEventListener( 'touchstart', onTouchStart, false );
|
|
scope.domElement.removeEventListener( 'touchend', onTouchEnd, false );
|
|
scope.domElement.removeEventListener( 'touchmove', onTouchMove, false );
|
|
|
|
document.removeEventListener( 'mousemove', onMouseMove, false );
|
|
document.removeEventListener( 'mouseup', onMouseUp, false );
|
|
|
|
scope.domElement.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 Spherical();
|
|
var sphericalDelta = new Spherical();
|
|
|
|
var scale = 1;
|
|
var panOffset = new Vector3();
|
|
var zoomChanged = false;
|
|
|
|
var rotateStart = new Vector2();
|
|
var rotateEnd = new Vector2();
|
|
var rotateDelta = new Vector2();
|
|
|
|
var panStart = new Vector2();
|
|
var panEnd = new Vector2();
|
|
var panDelta = new Vector2();
|
|
|
|
var dollyStart = new Vector2();
|
|
var dollyEnd = new Vector2();
|
|
var dollyDelta = new 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 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 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 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: CameraControls.js encountered an unknown camera type - pan disabled.' );
|
|
scope.enablePan = 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: CameraControls.js encountered an unknown camera type - dolly/zoom disabled.' );
|
|
scope.enableZoom = 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: CameraControls.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 ) {
|
|
|
|
dollyIn( getZoomScale() );
|
|
|
|
} else if ( dollyDelta.y < 0 ) {
|
|
|
|
dollyOut( 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 ) {
|
|
|
|
dollyOut( getZoomScale() );
|
|
|
|
} else if ( event.deltaY > 0 ) {
|
|
|
|
dollyIn( 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 ) );
|
|
|
|
dollyIn( 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 onMouseDown( event ) {
|
|
|
|
if ( scope.enabled === false ) return;
|
|
|
|
// 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 MOUSE.DOLLY:
|
|
|
|
if ( scope.enableZoom === false ) return;
|
|
|
|
handleMouseDownDolly( event );
|
|
|
|
state = STATE.DOLLY;
|
|
|
|
break;
|
|
|
|
case 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 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 ) {
|
|
|
|
document.addEventListener( 'mousemove', onMouseMove, false );
|
|
document.addEventListener( 'mouseup', onMouseUp, 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 ) {
|
|
|
|
if ( scope.enabled === false ) return;
|
|
|
|
handleMouseUp( event );
|
|
|
|
document.removeEventListener( 'mousemove', onMouseMove, false );
|
|
document.removeEventListener( 'mouseup', onMouseUp, false );
|
|
|
|
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.enableKeys === false || scope.enablePan === false ) return;
|
|
|
|
handleKeyDown( event );
|
|
|
|
}
|
|
|
|
function onTouchStart( event ) {
|
|
|
|
if ( scope.enabled === false ) return;
|
|
|
|
event.preventDefault();
|
|
|
|
switch ( event.touches.length ) {
|
|
|
|
case 1:
|
|
|
|
switch ( scope.touches.ONE ) {
|
|
|
|
case TOUCH.ROTATE:
|
|
|
|
if ( scope.enableRotate === false ) return;
|
|
|
|
handleTouchStartRotate( event );
|
|
|
|
state = STATE.TOUCH_ROTATE;
|
|
|
|
break;
|
|
|
|
case 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 TOUCH.DOLLY_PAN:
|
|
|
|
if ( scope.enableZoom === false && scope.enablePan === false ) return;
|
|
|
|
handleTouchStartDollyPan( event );
|
|
|
|
state = STATE.TOUCH_DOLLY_PAN;
|
|
|
|
break;
|
|
|
|
case 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();
|
|
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 );
|
|
|
|
scope.domElement.addEventListener( 'mousedown', onMouseDown, false );
|
|
scope.domElement.addEventListener( 'wheel', onMouseWheel, false );
|
|
|
|
scope.domElement.addEventListener( 'touchstart', onTouchStart, false );
|
|
scope.domElement.addEventListener( 'touchend', onTouchEnd, false );
|
|
scope.domElement.addEventListener( 'touchmove', onTouchMove, false );
|
|
|
|
scope.domElement.addEventListener( 'keydown', onKeyDown, false );
|
|
|
|
// make sure element can receive keys.
|
|
|
|
if ( scope.domElement.tabIndex === - 1 ) {
|
|
|
|
scope.domElement.tabIndex = 0;
|
|
|
|
}
|
|
|
|
// force an update at start
|
|
|
|
this.object.lookAt( scope.target );
|
|
this.update();
|
|
this.saveState();
|
|
|
|
};
|
|
|
|
CameraControls.prototype = Object.create( EventDispatcher.prototype );
|
|
CameraControls.prototype.constructor = CameraControls;
|
|
|
|
|
|
// OrbitControls maintains the "up" direction, camera.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
|
|
|
|
var OrbitControls = function ( object, domElement ) {
|
|
|
|
CameraControls.call( this, object, domElement );
|
|
|
|
this.mouseButtons.LEFT = MOUSE.ROTATE;
|
|
this.mouseButtons.RIGHT = MOUSE.PAN;
|
|
|
|
this.touches.ONE = TOUCH.ROTATE;
|
|
this.touches.TWO = TOUCH.DOLLY_PAN;
|
|
|
|
};
|
|
|
|
OrbitControls.prototype = Object.create( EventDispatcher.prototype );
|
|
OrbitControls.prototype.constructor = OrbitControls;
|
|
|
|
|
|
// MapControls maintains the "up" direction, camera.up (+Y by default)
|
|
//
|
|
// 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 left right + ctrl/meta/shiftKey, or arrow keys / touch: one-finger move
|
|
|
|
|
|
var MapControls = function ( object, domElement ) {
|
|
|
|
CameraControls.call( this, object, domElement );
|
|
|
|
this.mouseButtons.LEFT = MOUSE.PAN;
|
|
this.mouseButtons.RIGHT = MOUSE.ROTATE;
|
|
|
|
this.touches.ONE = TOUCH.PAN;
|
|
this.touches.TWO = TOUCH.DOLLY_ROTATE;
|
|
|
|
};
|
|
|
|
MapControls.prototype = Object.create( EventDispatcher.prototype );
|
|
MapControls.prototype.constructor = MapControls;
|
|
|
|
|
|
// TrackballControls allows the camera to rotate over the polls and does not maintain camera.up
|
|
//
|
|
// 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
|
|
|
|
var TrackballControls = function ( object, domElement ) {
|
|
|
|
CameraControls.call( this, object, domElement );
|
|
|
|
this.trackball = true;
|
|
this.screenSpacePanning = true;
|
|
this.autoRotate = false;
|
|
|
|
this.mouseButtons.LEFT = MOUSE.ROTATE;
|
|
this.mouseButtons.RIGHT = MOUSE.PAN;
|
|
|
|
this.touches.ONE = TOUCH.ROTATE;
|
|
this.touches.TWO = TOUCH.DOLLY_PAN;
|
|
|
|
};
|
|
|
|
TrackballControls.prototype = Object.create( EventDispatcher.prototype );
|
|
TrackballControls.prototype.constructor = TrackballControls;
|
|
|
|
|
|
export { CameraControls, OrbitControls, MapControls, TrackballControls };
|
|
|