1182 lines
24 KiB
JavaScript
1182 lines
24 KiB
JavaScript
/**
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* @author qiao / https://github.com/qiao
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* @author mrdoob / http://mrdoob.com
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* @author alteredq / http://alteredqualia.com/
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* @author WestLangley / http://github.com/WestLangley
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* @author erich666 / http://erichaines.com
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* @author ScieCode / http://github.com/sciecode
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*/
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// This set of controls performs orbiting, dollying (zooming), and panning.
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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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THREE.OrbitControls = function ( object, domElement ) {
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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;
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// Set to false to disable this control
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this.enabled = true;
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// "target" sets the location of focus, where the object orbits around
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this.target = new THREE.Vector3();
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// How far you can dolly in and out ( PerspectiveCamera only )
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this.minDistance = 0;
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this.maxDistance = Infinity;
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// How far you can zoom in and out ( OrthographicCamera only )
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this.minZoom = 0;
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this.maxZoom = Infinity;
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// 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, must be a sub-interval of the interval [ - Math.PI, Math.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;
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// 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;
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// Set to false to disable rotating
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this.enableRotate = true;
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this.rotateSpeed = 1.0;
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// 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 = false; // if true, pan in screen-space
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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 round when fps is 60
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// Set to false to disable use of the keys
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this.enableKeys = true;
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// The four arrow keys
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this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 };
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// Mouse buttons
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this.mouseButtons = { LEFT: THREE.MOUSE.ROTATE, MIDDLE: THREE.MOUSE.DOLLY, RIGHT: THREE.MOUSE.PAN };
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// Touch fingers
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this.touches = { ONE: THREE.TOUCH.ROTATE, 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;
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//
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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.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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};
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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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var offset = new THREE.Vector3();
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// so camera.up is the orbit axis
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var quat = new THREE.Quaternion().setFromUnitVectors( object.up, new THREE.Vector3( 0, 1, 0 ) );
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var quatInverse = quat.clone().inverse();
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var lastPosition = new THREE.Vector3();
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var lastQuaternion = new THREE.Quaternion();
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return function update() {
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var position = scope.object.position;
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offset.copy( position ).sub( scope.target );
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// rotate offset to "y-axis-is-up" space
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offset.applyQuaternion( quat );
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// 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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}
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// restrict theta to be between desired limits
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spherical.theta = Math.max( scope.minAzimuthAngle, Math.min( scope.maxAzimuthAngle, spherical.theta ) );
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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;
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// restrict radius to be between desired limits
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spherical.radius = Math.max( scope.minDistance, Math.min( scope.maxDistance, spherical.radius ) );
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// 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 );
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// 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;
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// 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 ||
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lastPosition.distanceToSquared( scope.object.position ) > EPS ||
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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, false );
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scope.domElement.removeEventListener( 'mousedown', onMouseDown, false );
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scope.domElement.removeEventListener( 'wheel', onMouseWheel, false );
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scope.domElement.removeEventListener( 'touchstart', onTouchStart, false );
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scope.domElement.removeEventListener( 'touchend', onTouchEnd, false );
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scope.domElement.removeEventListener( 'touchmove', onTouchMove, false );
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document.removeEventListener( 'mousemove', onMouseMove, false );
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document.removeEventListener( 'mouseup', onMouseUp, false );
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scope.domElement.removeEventListener( 'keydown', onKeyDown, false );
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//scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?
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};
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//
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// internals
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//
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var scope = this;
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var changeEvent = { type: 'change' };
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var startEvent = { type: 'start' };
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var endEvent = { type: 'end' };
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var 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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var state = STATE.NONE;
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var EPS = 0.000001;
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// current position in spherical coordinates
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var spherical = new THREE.Spherical();
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var sphericalDelta = new THREE.Spherical();
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var scale = 1;
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var panOffset = new THREE.Vector3();
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var zoomChanged = false;
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var rotateStart = new THREE.Vector2();
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var rotateEnd = new THREE.Vector2();
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var rotateDelta = new THREE.Vector2();
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var panStart = new THREE.Vector2();
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var panEnd = new THREE.Vector2();
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var panDelta = new THREE.Vector2();
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var dollyStart = new THREE.Vector2();
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var dollyEnd = new THREE.Vector2();
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var 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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var panLeft = function () {
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var 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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var panUp = function () {
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var 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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}();
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// deltaX and deltaY are in pixels; right and down are positive
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var pan = function () {
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var offset = new THREE.Vector3();
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return function pan( deltaX, deltaY ) {
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var element = scope.domElement;
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if ( scope.object.isPerspectiveCamera ) {
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// perspective
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var position = scope.object.position;
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offset.copy( position ).sub( scope.target );
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var targetDistance = offset.length();
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// 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 );
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// 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 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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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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//
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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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var 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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dollyIn( getZoomScale() );
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} else if ( dollyDelta.y < 0 ) {
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dollyOut( 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( /*event*/ ) {
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// 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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dollyOut( getZoomScale() );
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} else if ( event.deltaY > 0 ) {
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dollyIn( 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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var needsUpdate = false;
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switch ( event.keyCode ) {
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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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var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX );
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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();
|
|
|
|
switch ( event.button ) {
|
|
|
|
case 0:
|
|
|
|
switch ( scope.mouseButtons.LEFT ) {
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
case 1:
|
|
|
|
switch ( scope.mouseButtons.MIDDLE ) {
|
|
|
|
case THREE.MOUSE.DOLLY:
|
|
|
|
if ( scope.enableZoom === false ) return;
|
|
|
|
handleMouseDownDolly( event );
|
|
|
|
state = STATE.DOLLY;
|
|
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
state = STATE.NONE;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
switch ( scope.mouseButtons.RIGHT ) {
|
|
|
|
case THREE.MOUSE.ROTATE:
|
|
|
|
if ( scope.enableRotate === false ) return;
|
|
|
|
handleMouseDownRotate( event );
|
|
|
|
state = STATE.ROTATE;
|
|
|
|
break;
|
|
|
|
case THREE.MOUSE.PAN:
|
|
|
|
if ( scope.enablePan === false ) return;
|
|
|
|
handleMouseDownPan( event );
|
|
|
|
state = STATE.PAN;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
state = STATE.NONE;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
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 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();
|
|
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.update();
|
|
|
|
};
|
|
|
|
THREE.OrbitControls.prototype = Object.create( THREE.EventDispatcher.prototype );
|
|
THREE.OrbitControls.prototype.constructor = THREE.OrbitControls;
|
|
|
|
|
|
// 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
|
|
|
|
THREE.MapControls = function ( object, domElement ) {
|
|
|
|
THREE.OrbitControls.call( this, object, domElement );
|
|
|
|
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.prototype = Object.create( THREE.EventDispatcher.prototype );
|
|
THREE.MapControls.prototype.constructor = THREE.MapControls;
|
|
|