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( function () {
// 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
const _changeEvent = { type: 'change' }; const _startEvent = { type: 'start' }; const _endEvent = { type: 'end' };
class OrbitControls extends THREE.EventDispatcher {
constructor( object, domElement ) {
super(); 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; this.domElement.style.touchAction = 'none'; // disable touch scroll
// 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 orbit when fps is 60
// The four arrow keys
this.keys = { LEFT: 'ArrowLeft', UP: 'ArrowUp', RIGHT: 'ArrowRight', BOTTOM: 'ArrowDown' }; // 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.getDistance = function () {
return this.object.position.distanceTo( this.target );
};
this.listenToKeyEvents = function ( domElement ) {
domElement.addEventListener( 'keydown', onKeyDown ); 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 () {
const offset = new THREE.Vector3(); // so camera.up is the orbit axis
const quat = new THREE.Quaternion().setFromUnitVectors( object.up, new THREE.Vector3( 0, 1, 0 ) ); const quatInverse = quat.clone().invert(); const lastPosition = new THREE.Vector3(); const lastQuaternion = new THREE.Quaternion(); const twoPI = 2 * Math.PI; return function update() {
const 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
let min = scope.minAzimuthAngle; let 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 ); scope.domElement.removeEventListener( 'pointerdown', onPointerDown ); scope.domElement.removeEventListener( 'pointercancel', onPointerCancel ); scope.domElement.removeEventListener( 'wheel', onMouseWheel ); scope.domElement.removeEventListener( 'pointermove', onPointerMove ); scope.domElement.removeEventListener( 'pointerup', onPointerUp );
if ( scope._domElementKeyEvents !== null ) {
scope._domElementKeyEvents.removeEventListener( 'keydown', onKeyDown );
} //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?
}; //
// internals
//
const scope = this; const STATE = { NONE: - 1, ROTATE: 0, DOLLY: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_PAN: 4, TOUCH_DOLLY_PAN: 5, TOUCH_DOLLY_ROTATE: 6 }; let state = STATE.NONE; const EPS = 0.000001; // current position in spherical coordinates
const spherical = new THREE.Spherical(); const sphericalDelta = new THREE.Spherical(); let scale = 1; const panOffset = new THREE.Vector3(); let zoomChanged = false; const rotateStart = new THREE.Vector2(); const rotateEnd = new THREE.Vector2(); const rotateDelta = new THREE.Vector2(); const panStart = new THREE.Vector2(); const panEnd = new THREE.Vector2(); const panDelta = new THREE.Vector2(); const dollyStart = new THREE.Vector2(); const dollyEnd = new THREE.Vector2(); const dollyDelta = new THREE.Vector2(); const pointers = []; const pointerPositions = {};
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;
}
const panLeft = function () {
const v = new THREE.Vector3(); return function panLeft( distance, objectMatrix ) {
v.setFromMatrixColumn( objectMatrix, 0 ); // get X column of objectMatrix
v.multiplyScalar( - distance ); panOffset.add( v );
};
}();
const panUp = function () {
const 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
const pan = function () {
const offset = new THREE.Vector3(); return function pan( deltaX, deltaY ) {
const element = scope.domElement;
if ( scope.object.isPerspectiveCamera ) {
// perspective
const position = scope.object.position; offset.copy( position ).sub( scope.target ); let 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 ); const 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 handleMouseWheel( event ) {
if ( event.deltaY < 0 ) {
dollyIn( getZoomScale() );
} else if ( event.deltaY > 0 ) {
dollyOut( getZoomScale() );
}
scope.update();
}
function handleKeyDown( event ) {
let needsUpdate = false;
switch ( event.code ) {
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() {
if ( pointers.length === 1 ) {
rotateStart.set( pointers[ 0 ].pageX, pointers[ 0 ].pageY );
} else {
const x = 0.5 * ( pointers[ 0 ].pageX + pointers[ 1 ].pageX ); const y = 0.5 * ( pointers[ 0 ].pageY + pointers[ 1 ].pageY ); rotateStart.set( x, y );
}
}
function handleTouchStartPan() {
if ( pointers.length === 1 ) {
panStart.set( pointers[ 0 ].pageX, pointers[ 0 ].pageY );
} else {
const x = 0.5 * ( pointers[ 0 ].pageX + pointers[ 1 ].pageX ); const y = 0.5 * ( pointers[ 0 ].pageY + pointers[ 1 ].pageY ); panStart.set( x, y );
}
}
function handleTouchStartDolly() {
const dx = pointers[ 0 ].pageX - pointers[ 1 ].pageX; const dy = pointers[ 0 ].pageY - pointers[ 1 ].pageY; const distance = Math.sqrt( dx * dx + dy * dy ); dollyStart.set( 0, distance );
}
function handleTouchStartDollyPan() {
if ( scope.enableZoom ) handleTouchStartDolly(); if ( scope.enablePan ) handleTouchStartPan();
}
function handleTouchStartDollyRotate() {
if ( scope.enableZoom ) handleTouchStartDolly(); if ( scope.enableRotate ) handleTouchStartRotate();
}
function handleTouchMoveRotate( event ) {
if ( pointers.length == 1 ) {
rotateEnd.set( event.pageX, event.pageY );
} else {
const position = getSecondPointerPosition( event ); const x = 0.5 * ( event.pageX + position.x ); const y = 0.5 * ( event.pageY + position.y ); rotateEnd.set( x, y );
}
rotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed ); const 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 ( pointers.length === 1 ) {
panEnd.set( event.pageX, event.pageY );
} else {
const position = getSecondPointerPosition( event ); const x = 0.5 * ( event.pageX + position.x ); const y = 0.5 * ( event.pageY + position.y ); panEnd.set( x, y );
}
panDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed ); pan( panDelta.x, panDelta.y ); panStart.copy( panEnd );
}
function handleTouchMoveDolly( event ) {
const position = getSecondPointerPosition( event ); const dx = event.pageX - position.x; const dy = event.pageY - position.y; const 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 );
} //
// event handlers - FSM: listen for events and reset state
//
function onPointerDown( event ) {
if ( scope.enabled === false ) return;
if ( pointers.length === 0 ) {
scope.domElement.setPointerCapture( event.pointerId ); scope.domElement.addEventListener( 'pointermove', onPointerMove ); scope.domElement.addEventListener( 'pointerup', onPointerUp );
} //
addPointer( event );
if ( event.pointerType === 'touch' ) {
onTouchStart( event );
} else {
onMouseDown( event );
}
}
function onPointerMove( event ) {
if ( scope.enabled === false ) return;
if ( event.pointerType === 'touch' ) {
onTouchMove( event );
} else {
onMouseMove( event );
}
}
function onPointerUp( event ) {
removePointer( event );
if ( pointers.length === 0 ) {
scope.domElement.releasePointerCapture( event.pointerId ); scope.domElement.removeEventListener( 'pointermove', onPointerMove ); scope.domElement.removeEventListener( 'pointerup', onPointerUp );
}
scope.dispatchEvent( _endEvent ); state = STATE.NONE;
}
function onPointerCancel( event ) {
removePointer( event );
}
function onMouseDown( event ) {
let 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 ) {
scope.dispatchEvent( _startEvent );
}
}
function onMouseMove( event ) {
if ( scope.enabled === false ) return;
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 onMouseWheel( event ) {
if ( scope.enabled === false || scope.enableZoom === false || state !== STATE.NONE ) return; event.preventDefault(); scope.dispatchEvent( _startEvent ); handleMouseWheel( event ); scope.dispatchEvent( _endEvent );
}
function onKeyDown( event ) {
if ( scope.enabled === false || scope.enablePan === false ) return; handleKeyDown( event );
}
function onTouchStart( event ) {
trackPointer( event );
switch ( pointers.length ) {
case 1: switch ( scope.touches.ONE ) {
case THREE.TOUCH.ROTATE: if ( scope.enableRotate === false ) return; handleTouchStartRotate(); state = STATE.TOUCH_ROTATE; break;
case THREE.TOUCH.PAN: if ( scope.enablePan === false ) return; handleTouchStartPan(); 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(); state = STATE.TOUCH_DOLLY_PAN; break;
case THREE.TOUCH.DOLLY_ROTATE: if ( scope.enableZoom === false && scope.enableRotate === false ) return; handleTouchStartDollyRotate(); 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 ) {
trackPointer( event );
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 onContextMenu( event ) {
if ( scope.enabled === false ) return; event.preventDefault();
}
function addPointer( event ) {
pointers.push( event );
}
function removePointer( event ) {
delete pointerPositions[ event.pointerId ];
for ( let i = 0; i < pointers.length; i ++ ) {
if ( pointers[ i ].pointerId == event.pointerId ) {
pointers.splice( i, 1 ); return;
}
}
}
function trackPointer( event ) {
let position = pointerPositions[ event.pointerId ];
if ( position === undefined ) {
position = new THREE.Vector2(); pointerPositions[ event.pointerId ] = position;
}
position.set( event.pageX, event.pageY );
}
function getSecondPointerPosition( event ) {
const pointer = event.pointerId === pointers[ 0 ].pointerId ? pointers[ 1 ] : pointers[ 0 ]; return pointerPositions[ pointer.pointerId ];
} //
scope.domElement.addEventListener( 'contextmenu', onContextMenu ); scope.domElement.addEventListener( 'pointerdown', onPointerDown ); scope.domElement.addEventListener( 'pointercancel', onPointerCancel ); scope.domElement.addEventListener( 'wheel', onMouseWheel, { passive: false } ); // force an update at start
this.update();
}
} // 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
class MapControls extends OrbitControls {
constructor( object, domElement ) {
super( 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 = MapControls; THREE.OrbitControls = OrbitControls;
} )();
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