mirror of
https://github.com/JannisX11/blockbench.git
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799 lines
19 KiB
JavaScript
799 lines
19 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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*/
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THREE.OrbitControls = function ( object, preview ) {
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this.object = object;
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this.preview = preview
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this.domElement = preview.canvas;
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this.enabled = true;
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this.isEnabled = function() {
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return this.enabled// && Toolbox.selected.navigate
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};
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this.target = new THREE.Vector3();
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this.minDistance = 0;
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this.maxDistance = Infinity;
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this.minZoom = 0;
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this.maxZoom = Infinity;
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this.minPolarAngle = 0; // radians
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this.maxPolarAngle = Math.PI; // radians
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this.minAzimuthAngle = - Infinity; // radians
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this.maxAzimuthAngle = Infinity; // radians
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this.enableDamping = false;
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this.dampingFactor = 0.25;
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this.enableZoom = true;
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this.zoomSpeed = 1.0;
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this.enableRotate = true;
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this.rotateSpeed = 1.0;
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this.enablePan = true;
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this.keyPanSpeed = 7.0; // pixels moved per arrow key push
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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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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 = { ORBIT: THREE.MOUSE.LEFT, ZOOM: THREE.MOUSE.MIDDLE, PAN: THREE.MOUSE.RIGHT };
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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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var updateHandlers = [];
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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.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.updateSceneScale = function() {
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if (scope.preview.isOrtho === true && scope.preview.camOrtho.axis && scope.preview.background.image !== false) {
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scope.preview.updateBackground()
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}
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Transformer.update()
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Blockbench.dispatchEvent('update_camera_position', {preview: scope.preview})
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};
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this.onUpdate = function(call) {
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if (typeof call == 'function') {
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updateHandlers.push(call);
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}
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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().invert();
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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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let auto_rot_angle = getAutoRotationAngle()
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scope.autoRotateProgress += auto_rot_angle;
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scope.rotateLeft( auto_rot_angle );
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}
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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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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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scope.target.add( panOffset );
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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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} else {
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sphericalDelta.set( 0, 0, 0 );
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}
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scale = 1;
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panOffset.set( 0, 0, 0 );
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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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updateHandlers.forEach(call => call(changeEvent));
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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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window.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 = { NONE: - 1, ROTATE: 0, DOLLY: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_DOLLY_PAN: 4 };
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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(modifier = 1) {
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return Math.pow( 0.95, scope.zoomSpeed * modifier);
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}
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this.rotateLeft = function( angle ) {
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sphericalDelta.theta -= angle;
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}
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this.rotateUp = function( 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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v.setFromMatrixColumn( objectMatrix, 1 ); // get Y 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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// 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 === document ? scope.domElement.body : scope.domElement;
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if ( scope.object instanceof THREE.PerspectiveCamera ) {
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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 actually don't use screenWidth, since perspective camera is fixed to screen height
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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 instanceof THREE.OrthographicCamera ) {
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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 instanceof THREE.PerspectiveCamera ) {
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scale /= dollyScale;
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} else if ( scope.object instanceof THREE.OrthographicCamera ) {
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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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scope.updateSceneScale()
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}
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function dollyOut( dollyScale ) {
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if ( scope.object instanceof THREE.PerspectiveCamera ) {
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scale *= dollyScale;
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} else if ( scope.object instanceof THREE.OrthographicCamera ) {
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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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scope.updateSceneScale()
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}
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this.dollyIn = dollyIn;
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this.dollyOut = dollyOut;
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// event callbacks - update the object state
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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 );
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var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
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// rotating across whole screen goes 360 degrees around
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scope.rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed );
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// rotating up and down along whole screen attempts to go 360, but limited to 180
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scope.rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed );
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rotateStart.copy( rotateEnd );
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scope.update();
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scope.updateSceneScale();
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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(0.12 * dollyDelta.y) );
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} else if ( dollyDelta.y < 0 ) {
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dollyOut( getZoomScale(0.12 * -dollyDelta.y) );
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}
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dollyStart.copy( dollyEnd );
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scope.update();
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scope.updateSceneScale();
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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 );
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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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scope.updateSceneScale();
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}
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function handleMouseUp( event ) {
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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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scope.updateSceneScale();
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}
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function handleKeyDown( event ) {
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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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scope.update();
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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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scope.update();
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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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scope.update();
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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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scope.update();
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break;
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}
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}
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function handleTouchStartRotate( event ) {
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if (scope.enableRotate) {
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rotateStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );
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}
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}
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function handleTouchStartDollyPan( event ) {
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if (scope.enableZoom) {
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var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
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var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
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var distance = Math.sqrt( dx * dx + dy * dy );
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dollyStart.set( 0, distance );
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}
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if (scope.enablePan) {
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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 );
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panStart.set( x, y );
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}
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}
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function handleTouchMoveRotate( event ) {
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rotateEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );
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rotateDelta.subVectors( rotateEnd, rotateStart );
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var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
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// rotating across whole screen goes 360 degrees around
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scope.rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed );
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// rotating up and down along whole screen attempts to go 360, but limited to 180
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scope.rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed );
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rotateStart.copy( rotateEnd );
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scope.update();
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scope.updateSceneScale()
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}
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function handleTouchMoveDollyPan( event ) {
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if (scope.enableZoom) {
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var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
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var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
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var distance = Math.sqrt( dx * dx + dy * dy );
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dollyEnd.set( 0, distance );
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dollyDelta.set( 0, Math.pow( dollyEnd.y / dollyStart.y, scope.zoomSpeed ) );
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dollyIn( dollyDelta.y );
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dollyStart.copy( dollyEnd );
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}
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if (scope.enablePan) {
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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 );
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panEnd.set( x, y );
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panDelta.subVectors( panEnd, panStart ).multiplyScalar( 1 );
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pan( panDelta.x, panDelta.y );
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panStart.copy( panEnd );
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}
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scope.update();
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/*
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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.subVectors( dollyEnd, dollyStart );
|
|
if ( dollyDelta.y > 0 ) {
|
|
|
|
dollyOut( getZoomScale() );
|
|
|
|
} else if ( dollyDelta.y < 0 ) {
|
|
|
|
dollyIn( getZoomScale() );
|
|
|
|
}
|
|
|
|
dollyStart.copy( dollyEnd );
|
|
|
|
scope.update();*/
|
|
|
|
}
|
|
|
|
//
|
|
// event handlers - FSM: listen for events and reset state
|
|
//
|
|
|
|
function onMouseDown( event ) {
|
|
|
|
if (scope.isEnabled() === false || Transformer.dragging) return;
|
|
|
|
event.preventDefault();
|
|
scope.hasMoved = false
|
|
|
|
if ( Keybinds.extra.preview_rotate.keybind.isTriggered(event) ) {
|
|
|
|
if ( scope.enableRotate === false ) return;
|
|
if (event.which === 1 && Canvas.raycast(event) && display_mode === false) {
|
|
return;
|
|
}
|
|
handleMouseDownRotate( event );
|
|
|
|
state = STATE.ROTATE;
|
|
|
|
} else if ( Keybinds.extra.preview_drag.keybind.isTriggered(event) ) {
|
|
|
|
if ( scope.enablePan === false ) return;
|
|
if (event.which === 1 && Canvas.raycast(event) && display_mode === false) {
|
|
return;
|
|
}
|
|
handleMouseDownPan( event );
|
|
state = STATE.PAN;
|
|
|
|
} else if ( Keybinds.extra.preview_zoom.keybind.isTriggered(event) ) {
|
|
|
|
if ( scope.enableZoom === false ) return;
|
|
if (event.which === 1 && Canvas.raycast(event) && display_mode === false) {
|
|
return;
|
|
}
|
|
handleMouseDownDolly( event );
|
|
state = STATE.DOLLY;
|
|
}
|
|
|
|
if ( state !== STATE.NONE ) {
|
|
|
|
document.addEventListener( 'mousemove', onMouseMove, false );
|
|
document.addEventListener( 'mouseup', onMouseUp, false );
|
|
scope.dispatchEvent( startEvent );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function onMouseMove( event ) {
|
|
|
|
if (scope.isEnabled() === false || Transformer.dragging) return;
|
|
event.preventDefault();
|
|
scope.hasMoved = true
|
|
|
|
if ( state === STATE.ROTATE ) {
|
|
|
|
if ( scope.enableRotate === false ) return;
|
|
handleMouseMoveRotate( event );
|
|
|
|
} else if ( state === STATE.DOLLY ) {
|
|
|
|
if ( scope.enableZoom === false ) return;
|
|
handleMouseMoveDolly( event );
|
|
|
|
} else if ( state === STATE.PAN ) {
|
|
|
|
if ( scope.enablePan === false ) return;
|
|
handleMouseMovePan( event );
|
|
|
|
}
|
|
}
|
|
|
|
function onMouseUp( event ) {
|
|
|
|
if ( scope.isEnabled() === false ) return;
|
|
|
|
handleMouseUp( event );
|
|
|
|
document.removeEventListener( 'mousemove', onMouseMove, false );
|
|
document.removeEventListener( 'mouseup', onMouseUp, false );
|
|
scope.dispatchEvent( endEvent );
|
|
state = STATE.NONE;
|
|
|
|
}
|
|
this.stopMovement = function(event) {
|
|
onMouseUp()
|
|
}
|
|
|
|
function onMouseWheel( event ) {
|
|
|
|
if ( scope.isEnabled() === false || scope.enableZoom === false || ( state !== STATE.NONE && state !== STATE.ROTATE ) ) return;
|
|
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
|
|
handleMouseWheel( event );
|
|
}
|
|
|
|
function onKeyDown( event ) {
|
|
|
|
if ( scope.isEnabled() === false || scope.enableKeys === false || scope.enablePan === false ) return;
|
|
handleKeyDown( event );
|
|
}
|
|
|
|
function onTouchStart( event ) {
|
|
|
|
if ( scope.isEnabled() === false ) return;
|
|
|
|
event.preventDefault();
|
|
|
|
|
|
switch ( event.touches.length ) {
|
|
|
|
case 1: // one-fingered touch: rotate
|
|
|
|
if ( scope.enableRotate === false ) return;
|
|
|
|
if (event.touches[0].touchType == 'stylus' && Modes.paint) return;
|
|
|
|
handleTouchStartRotate( event );
|
|
|
|
state = STATE.TOUCH_ROTATE;
|
|
|
|
break;
|
|
|
|
case 2: // two-fingered touch: dolly-pan
|
|
|
|
//if ( scope.enableZoom === false && scope.enablePan === false ) return;
|
|
|
|
handleTouchStartDollyPan( event );
|
|
|
|
state = STATE.TOUCH_DOLLY_PAN;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
state = STATE.NONE;
|
|
|
|
}
|
|
|
|
if ( state !== STATE.NONE ) {
|
|
|
|
scope.dispatchEvent( startEvent );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function onTouchMove( event ) {
|
|
|
|
if ( scope.isEnabled() === false ) return;
|
|
if ( Transformer.dragging || Painter.painting ) return;
|
|
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
|
|
switch ( event.touches.length ) {
|
|
|
|
case 1: // one-fingered touch: rotate
|
|
|
|
//if ( scope.enableRotate === false ) return;
|
|
if ( state !== STATE.TOUCH_ROTATE ) return; // is this needed?
|
|
|
|
handleTouchMoveRotate( event );
|
|
|
|
break;
|
|
|
|
case 2: // two-fingered touch: dolly-pan
|
|
|
|
//if ( scope.enableZoom === false && scope.enablePan === false ) return;
|
|
if ( state !== STATE.TOUCH_DOLLY_PAN ) return; // is this needed?
|
|
|
|
handleTouchMoveDollyPan( event );
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
state = STATE.NONE;
|
|
|
|
}
|
|
}
|
|
|
|
function onTouchEnd( event ) {
|
|
|
|
if ( scope.isEnabled() === false ) return;
|
|
scope.dispatchEvent( endEvent );
|
|
state = STATE.NONE;
|
|
|
|
}
|
|
|
|
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 );
|
|
|
|
window.addEventListener( 'keydown', onKeyDown, false );
|
|
|
|
this.update();
|
|
|
|
};
|
|
|
|
THREE.OrbitControls.prototype = Object.create( THREE.EventDispatcher.prototype );
|
|
THREE.OrbitControls.prototype.constructor = THREE.OrbitControls;
|