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1045 lines
26 KiB
1045 lines
26 KiB
( function () {
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// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
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//
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// Orbit - left mouse / touch: one-finger move
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// Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
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// Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move
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const _changeEvent = {
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type: 'change'
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};
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const _startEvent = {
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type: 'start'
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};
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const _endEvent = {
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type: 'end'
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};
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class OrbitControls extends THREE.EventDispatcher {
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constructor( object, domElement ) {
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super();
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if ( domElement === undefined ) console.warn( 'THREE.OrbitControls: The second parameter "domElement" is now mandatory.' );
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if ( domElement === document ) console.error( 'THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.' );
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this.object = object;
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this.domElement = domElement; // Set to false to disable this control
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this.enabled = true; // "target" sets the location of focus, where the object orbits around
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this.target = new THREE.Vector3(); // How far you can dolly in and out ( PerspectiveCamera only )
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this.minDistance = 0;
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this.maxDistance = Infinity; // How far you can zoom in and out ( OrthographicCamera only )
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this.minZoom = 0;
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this.maxZoom = Infinity; // How far you can orbit vertically, upper and lower limits.
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// Range is 0 to Math.PI radians.
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this.minPolarAngle = 0; // radians
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this.maxPolarAngle = Math.PI; // radians
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// How far you can orbit horizontally, upper and lower limits.
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// If set, the interval [ min, max ] must be a sub-interval of [ - 2 PI, 2 PI ], with ( max - min < 2 PI )
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this.minAzimuthAngle = - Infinity; // radians
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this.maxAzimuthAngle = Infinity; // radians
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// Set to true to enable damping (inertia)
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// If damping is enabled, you must call controls.update() in your animation loop
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this.enableDamping = false;
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this.dampingFactor = 0.05; // This option actually enables dollying in and out; left as "zoom" for backwards compatibility.
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// Set to false to disable zooming
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this.enableZoom = true;
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this.zoomSpeed = 1.0; // Set to false to disable rotating
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this.enableRotate = true;
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this.rotateSpeed = 1.0; // Set to false to disable panning
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this.enablePan = true;
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this.panSpeed = 1.0;
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this.screenSpacePanning = true; // if false, pan orthogonal to world-space direction camera.up
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this.keyPanSpeed = 7.0; // pixels moved per arrow key push
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// Set to true to automatically rotate around the target
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// If auto-rotate is enabled, you must call controls.update() in your animation loop
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this.autoRotate = false;
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this.autoRotateSpeed = 2.0; // 30 seconds per orbit when fps is 60
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// The four arrow keys
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this.keys = {
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LEFT: 'ArrowLeft',
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UP: 'ArrowUp',
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RIGHT: 'ArrowRight',
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BOTTOM: 'ArrowDown'
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}; // Mouse buttons
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this.mouseButtons = {
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LEFT: THREE.MOUSE.ROTATE,
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MIDDLE: THREE.MOUSE.DOLLY,
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RIGHT: THREE.MOUSE.PAN
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}; // Touch fingers
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this.touches = {
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ONE: THREE.TOUCH.ROTATE,
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TWO: THREE.TOUCH.DOLLY_PAN
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}; // for reset
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this.target0 = this.target.clone();
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this.position0 = this.object.position.clone();
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this.zoom0 = this.object.zoom; // the target DOM element for key events
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this._domElementKeyEvents = null; //
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// public methods
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//
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this.getPolarAngle = function () {
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return spherical.phi;
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};
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this.getAzimuthalAngle = function () {
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return spherical.theta;
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};
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this.listenToKeyEvents = function ( domElement ) {
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domElement.addEventListener( 'keydown', onKeyDown );
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this._domElementKeyEvents = domElement;
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};
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this.saveState = function () {
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scope.target0.copy( scope.target );
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scope.position0.copy( scope.object.position );
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scope.zoom0 = scope.object.zoom;
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};
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this.reset = function () {
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scope.target.copy( scope.target0 );
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scope.object.position.copy( scope.position0 );
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scope.object.zoom = scope.zoom0;
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scope.object.updateProjectionMatrix();
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scope.dispatchEvent( _changeEvent );
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scope.update();
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state = STATE.NONE;
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}; // this method is exposed, but perhaps it would be better if we can make it private...
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this.update = function () {
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const offset = new THREE.Vector3(); // so camera.up is the orbit axis
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const quat = new THREE.Quaternion().setFromUnitVectors( object.up, new THREE.Vector3( 0, 1, 0 ) );
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const quatInverse = quat.clone().invert();
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const lastPosition = new THREE.Vector3();
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const lastQuaternion = new THREE.Quaternion();
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const twoPI = 2 * Math.PI;
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return function update() {
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const position = scope.object.position;
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offset.copy( position ).sub( scope.target ); // rotate offset to "y-axis-is-up" space
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offset.applyQuaternion( quat ); // angle from z-axis around y-axis
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spherical.setFromVector3( offset );
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if ( scope.autoRotate && state === STATE.NONE ) {
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rotateLeft( getAutoRotationAngle() );
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}
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if ( scope.enableDamping ) {
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spherical.theta += sphericalDelta.theta * scope.dampingFactor;
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spherical.phi += sphericalDelta.phi * scope.dampingFactor;
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} else {
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spherical.theta += sphericalDelta.theta;
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spherical.phi += sphericalDelta.phi;
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} // restrict theta to be between desired limits
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let min = scope.minAzimuthAngle;
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let max = scope.maxAzimuthAngle;
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if ( isFinite( min ) && isFinite( max ) ) {
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if ( min < - Math.PI ) min += twoPI; else if ( min > Math.PI ) min -= twoPI;
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if ( max < - Math.PI ) max += twoPI; else if ( max > Math.PI ) max -= twoPI;
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if ( min <= max ) {
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spherical.theta = Math.max( min, Math.min( max, spherical.theta ) );
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} else {
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spherical.theta = spherical.theta > ( min + max ) / 2 ? Math.max( min, spherical.theta ) : Math.min( max, spherical.theta );
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}
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} // restrict phi to be between desired limits
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spherical.phi = Math.max( scope.minPolarAngle, Math.min( scope.maxPolarAngle, spherical.phi ) );
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spherical.makeSafe();
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spherical.radius *= scale; // restrict radius to be between desired limits
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spherical.radius = Math.max( scope.minDistance, Math.min( scope.maxDistance, spherical.radius ) ); // move target to panned location
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if ( scope.enableDamping === true ) {
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scope.target.addScaledVector( panOffset, scope.dampingFactor );
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} else {
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scope.target.add( panOffset );
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}
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offset.setFromSpherical( spherical ); // rotate offset back to "camera-up-vector-is-up" space
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offset.applyQuaternion( quatInverse );
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position.copy( scope.target ).add( offset );
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scope.object.lookAt( scope.target );
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if ( scope.enableDamping === true ) {
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sphericalDelta.theta *= 1 - scope.dampingFactor;
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sphericalDelta.phi *= 1 - scope.dampingFactor;
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panOffset.multiplyScalar( 1 - scope.dampingFactor );
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} else {
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sphericalDelta.set( 0, 0, 0 );
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panOffset.set( 0, 0, 0 );
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}
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scale = 1; // update condition is:
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// min(camera displacement, camera rotation in radians)^2 > EPS
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// using small-angle approximation cos(x/2) = 1 - x^2 / 8
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if ( zoomChanged || lastPosition.distanceToSquared( scope.object.position ) > EPS || 8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS ) {
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scope.dispatchEvent( _changeEvent );
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lastPosition.copy( scope.object.position );
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lastQuaternion.copy( scope.object.quaternion );
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zoomChanged = false;
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return true;
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}
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return false;
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};
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}();
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this.dispose = function () {
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scope.domElement.removeEventListener( 'contextmenu', onContextMenu );
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scope.domElement.removeEventListener( 'pointerdown', onPointerDown );
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scope.domElement.removeEventListener( 'wheel', onMouseWheel );
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scope.domElement.removeEventListener( 'touchstart', onTouchStart );
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scope.domElement.removeEventListener( 'touchend', onTouchEnd );
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scope.domElement.removeEventListener( 'touchmove', onTouchMove );
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scope.domElement.ownerDocument.removeEventListener( 'pointermove', onPointerMove );
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scope.domElement.ownerDocument.removeEventListener( 'pointerup', onPointerUp );
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if ( scope._domElementKeyEvents !== null ) {
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scope._domElementKeyEvents.removeEventListener( 'keydown', onKeyDown );
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} //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?
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}; //
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// internals
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//
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const scope = this;
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const STATE = {
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NONE: - 1,
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ROTATE: 0,
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DOLLY: 1,
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PAN: 2,
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TOUCH_ROTATE: 3,
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TOUCH_PAN: 4,
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TOUCH_DOLLY_PAN: 5,
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TOUCH_DOLLY_ROTATE: 6
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};
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let state = STATE.NONE;
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const EPS = 0.000001; // current position in spherical coordinates
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const spherical = new THREE.Spherical();
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const sphericalDelta = new THREE.Spherical();
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let scale = 1;
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const panOffset = new THREE.Vector3();
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let zoomChanged = false;
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const rotateStart = new THREE.Vector2();
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const rotateEnd = new THREE.Vector2();
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const rotateDelta = new THREE.Vector2();
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const panStart = new THREE.Vector2();
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const panEnd = new THREE.Vector2();
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const panDelta = new THREE.Vector2();
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const dollyStart = new THREE.Vector2();
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const dollyEnd = new THREE.Vector2();
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const dollyDelta = new THREE.Vector2();
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function getAutoRotationAngle() {
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return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;
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}
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function getZoomScale() {
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return Math.pow( 0.95, scope.zoomSpeed );
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}
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function rotateLeft( angle ) {
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sphericalDelta.theta -= angle;
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}
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function rotateUp( angle ) {
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sphericalDelta.phi -= angle;
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}
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const panLeft = function () {
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const v = new THREE.Vector3();
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return function panLeft( distance, objectMatrix ) {
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v.setFromMatrixColumn( objectMatrix, 0 ); // get X column of objectMatrix
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v.multiplyScalar( - distance );
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panOffset.add( v );
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};
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}();
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const panUp = function () {
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const v = new THREE.Vector3();
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return function panUp( distance, objectMatrix ) {
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if ( scope.screenSpacePanning === true ) {
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v.setFromMatrixColumn( objectMatrix, 1 );
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} else {
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v.setFromMatrixColumn( objectMatrix, 0 );
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v.crossVectors( scope.object.up, v );
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}
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v.multiplyScalar( distance );
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panOffset.add( v );
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};
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}(); // deltaX and deltaY are in pixels; right and down are positive
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const pan = function () {
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const offset = new THREE.Vector3();
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return function pan( deltaX, deltaY ) {
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const element = scope.domElement;
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if ( scope.object.isPerspectiveCamera ) {
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// perspective
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const position = scope.object.position;
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offset.copy( position ).sub( scope.target );
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let targetDistance = offset.length(); // half of the fov is center to top of screen
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targetDistance *= Math.tan( scope.object.fov / 2 * Math.PI / 180.0 ); // we use only clientHeight here so aspect ratio does not distort speed
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panLeft( 2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix );
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panUp( 2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix );
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} else if ( scope.object.isOrthographicCamera ) {
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// orthographic
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panLeft( deltaX * ( scope.object.right - scope.object.left ) / scope.object.zoom / element.clientWidth, scope.object.matrix );
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panUp( deltaY * ( scope.object.top - scope.object.bottom ) / scope.object.zoom / element.clientHeight, scope.object.matrix );
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} else {
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// camera neither orthographic nor perspective
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console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.' );
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scope.enablePan = false;
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}
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};
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}();
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function dollyOut( dollyScale ) {
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if ( scope.object.isPerspectiveCamera ) {
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scale /= dollyScale;
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} else if ( scope.object.isOrthographicCamera ) {
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scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom * dollyScale ) );
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scope.object.updateProjectionMatrix();
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zoomChanged = true;
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} else {
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console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' );
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scope.enableZoom = false;
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}
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}
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function dollyIn( dollyScale ) {
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if ( scope.object.isPerspectiveCamera ) {
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scale *= dollyScale;
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} else if ( scope.object.isOrthographicCamera ) {
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scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom / dollyScale ) );
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scope.object.updateProjectionMatrix();
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zoomChanged = true;
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} else {
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console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' );
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scope.enableZoom = false;
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}
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} //
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// event callbacks - update the object state
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//
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function handleMouseDownRotate( event ) {
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rotateStart.set( event.clientX, event.clientY );
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}
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function handleMouseDownDolly( event ) {
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dollyStart.set( event.clientX, event.clientY );
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}
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function handleMouseDownPan( event ) {
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panStart.set( event.clientX, event.clientY );
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}
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function handleMouseMoveRotate( event ) {
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rotateEnd.set( event.clientX, event.clientY );
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rotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed );
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const element = scope.domElement;
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rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height
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rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight );
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rotateStart.copy( rotateEnd );
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scope.update();
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}
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function handleMouseMoveDolly( event ) {
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dollyEnd.set( event.clientX, event.clientY );
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dollyDelta.subVectors( dollyEnd, dollyStart );
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if ( dollyDelta.y > 0 ) {
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dollyOut( getZoomScale() );
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} else if ( dollyDelta.y < 0 ) {
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dollyIn( getZoomScale() );
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}
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dollyStart.copy( dollyEnd );
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scope.update();
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}
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function handleMouseMovePan( event ) {
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panEnd.set( event.clientX, event.clientY );
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panDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed );
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pan( panDelta.x, panDelta.y );
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panStart.copy( panEnd );
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scope.update();
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}
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function handleMouseUp( ) { // no-op
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}
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function handleMouseWheel( event ) {
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if ( event.deltaY < 0 ) {
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dollyIn( getZoomScale() );
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} else if ( event.deltaY > 0 ) {
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dollyOut( getZoomScale() );
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}
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scope.update();
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}
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function handleKeyDown( event ) {
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let needsUpdate = false;
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switch ( event.code ) {
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case scope.keys.UP:
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pan( 0, scope.keyPanSpeed );
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needsUpdate = true;
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break;
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case scope.keys.BOTTOM:
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pan( 0, - scope.keyPanSpeed );
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needsUpdate = true;
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break;
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case scope.keys.LEFT:
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pan( scope.keyPanSpeed, 0 );
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needsUpdate = true;
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break;
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case scope.keys.RIGHT:
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pan( - scope.keyPanSpeed, 0 );
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needsUpdate = true;
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break;
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}
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if ( needsUpdate ) {
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// prevent the browser from scrolling on cursor keys
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event.preventDefault();
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scope.update();
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}
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}
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function handleTouchStartRotate( event ) {
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if ( event.touches.length == 1 ) {
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rotateStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );
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} else {
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const x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX );
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const y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY );
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rotateStart.set( x, y );
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}
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}
|
|
|
|
function handleTouchStartPan( event ) {
|
|
|
|
if ( event.touches.length == 1 ) {
|
|
|
|
panStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );
|
|
|
|
} else {
|
|
|
|
const x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX );
|
|
const y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY );
|
|
panStart.set( x, y );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function handleTouchStartDolly( event ) {
|
|
|
|
const dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
|
|
const dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
|
|
const 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 {
|
|
|
|
const x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX );
|
|
const y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY );
|
|
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 ( event.touches.length == 1 ) {
|
|
|
|
panEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );
|
|
|
|
} else {
|
|
|
|
const x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX );
|
|
const 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 ) {
|
|
|
|
const dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
|
|
const dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
|
|
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 );
|
|
|
|
}
|
|
|
|
function handleTouchEnd( ) { // no-op
|
|
} //
|
|
// event handlers - FSM: listen for events and reset state
|
|
//
|
|
|
|
|
|
function onPointerDown( event ) {
|
|
|
|
if ( scope.enabled === false ) return;
|
|
|
|
switch ( event.pointerType ) {
|
|
|
|
case 'mouse':
|
|
case 'pen':
|
|
onMouseDown( event );
|
|
break;
|
|
// TODO touch
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function onPointerMove( event ) {
|
|
|
|
if ( scope.enabled === false ) return;
|
|
|
|
switch ( event.pointerType ) {
|
|
|
|
case 'mouse':
|
|
case 'pen':
|
|
onMouseMove( event );
|
|
break;
|
|
// TODO touch
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function onPointerUp( event ) {
|
|
|
|
switch ( event.pointerType ) {
|
|
|
|
case 'mouse':
|
|
case 'pen':
|
|
onMouseUp( event );
|
|
break;
|
|
// TODO touch
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function onMouseDown( event ) {
|
|
|
|
// 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();
|
|
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.domElement.ownerDocument.addEventListener( 'pointermove', onPointerMove );
|
|
scope.domElement.ownerDocument.addEventListener( 'pointerup', onPointerUp );
|
|
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 ) {
|
|
|
|
scope.domElement.ownerDocument.removeEventListener( 'pointermove', onPointerMove );
|
|
scope.domElement.ownerDocument.removeEventListener( 'pointerup', onPointerUp );
|
|
if ( scope.enabled === false ) return;
|
|
handleMouseUp( event );
|
|
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();
|
|
scope.dispatchEvent( _startEvent );
|
|
handleMouseWheel( event );
|
|
scope.dispatchEvent( _endEvent );
|
|
|
|
}
|
|
|
|
function onKeyDown( event ) {
|
|
|
|
if ( scope.enabled === false || scope.enablePan === false ) return;
|
|
handleKeyDown( event );
|
|
|
|
}
|
|
|
|
function onTouchStart( event ) {
|
|
|
|
if ( scope.enabled === false ) return;
|
|
event.preventDefault(); // prevent scrolling
|
|
|
|
switch ( event.touches.length ) {
|
|
|
|
case 1:
|
|
switch ( scope.touches.ONE ) {
|
|
|
|
case THREE.TOUCH.ROTATE:
|
|
if ( scope.enableRotate === false ) return;
|
|
handleTouchStartRotate( event );
|
|
state = STATE.TOUCH_ROTATE;
|
|
break;
|
|
|
|
case THREE.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 THREE.TOUCH.DOLLY_PAN:
|
|
if ( scope.enableZoom === false && scope.enablePan === false ) return;
|
|
handleTouchStartDollyPan( event );
|
|
state = STATE.TOUCH_DOLLY_PAN;
|
|
break;
|
|
|
|
case THREE.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(); // prevent scrolling
|
|
|
|
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 );
|
|
scope.domElement.addEventListener( 'pointerdown', onPointerDown );
|
|
scope.domElement.addEventListener( 'wheel', onMouseWheel, {
|
|
passive: false
|
|
} );
|
|
scope.domElement.addEventListener( 'touchstart', onTouchStart, {
|
|
passive: false
|
|
} );
|
|
scope.domElement.addEventListener( 'touchend', onTouchEnd );
|
|
scope.domElement.addEventListener( 'touchmove', onTouchMove, {
|
|
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;
|
|
|
|
} )();
|