Uso OrbitControls.js per consentire l'interazione con il mouse. Sto aggiungendo un pulsante nella scena che permette di "resettare" la fotocamera al suo stato in cui si trovava prima di qualsiasi interazione del mouse.Reimposta fotocamera utilizzando OrbitControls.js
ho cercato di salvare camera.position e camera.rotation prima di ogni interazione:
camera_initial_position = camera.position; camera_initial_rotation = camera.rotation;
e dopo il "reset" si preme il pulsante, la posizione iniziale e la rotazione è impostato:
camera.position = camera_initial_position; camera.rotation = camera_initial_rotation;
Funziona bene se non si utilizza la panoramica. Se l'utente esegue la panoramica utilizzando il pulsante destro del mouse, il codice sopra riportato non può "reimpostare" la fotocamera.
Qual è il metodo corretto per "ripristinare" la telecamera al suo stato precedente?
Revisione di Three.js è R58 e questo è l'OrbitControls.js:
/** * @author qiao/https://github.com/qiao * @author mrdoob/http://mrdoob.com * @author alteredq/http://alteredqualia.com/ * @author WestLangley/http://github.com/WestLangley */ THREE.OrbitControls = function (object, domElement) { this.object = object; this.domElement = (domElement !== undefined) ? domElement : document; // API this.enabled = true; this.center = new THREE.Vector3(); this.userZoom = true; this.userZoomSpeed = 1.0; this.userRotate = true; this.userRotateSpeed = 1.0; this.userPan = true; this.userPanSpeed = 2.0; this.autoRotate = false; this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60 this.minPolarAngle = 0; // radians this.maxPolarAngle = Math.PI; // radians this.minDistance = 0; this.maxDistance = Infinity; this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 }; // internals var scope = this; var EPS = 0.000001; var PIXELS_PER_ROUND = 1800; var rotateStart = new THREE.Vector2(); var rotateEnd = new THREE.Vector2(); var rotateDelta = new THREE.Vector2(); var zoomStart = new THREE.Vector2(); var zoomEnd = new THREE.Vector2(); var zoomDelta = new THREE.Vector2(); var phiDelta = 0; var thetaDelta = 0; var scale = 1; var lastPosition = new THREE.Vector3(); var STATE = { NONE: -1, ROTATE: 0, ZOOM: 1, PAN: 2 }; var state = STATE.NONE; // events var changeEvent = { type: 'change' }; this.rotateLeft = function (angle) { if (angle === undefined) { angle = getAutoRotationAngle(); } thetaDelta -= angle; }; this.rotateRight = function (angle) { if (angle === undefined) { angle = getAutoRotationAngle(); } thetaDelta += angle; }; this.rotateUp = function (angle) { if (angle === undefined) { angle = getAutoRotationAngle(); } phiDelta -= angle; }; this.rotateDown = function (angle) { if (angle === undefined) { angle = getAutoRotationAngle(); } phiDelta += angle; }; this.zoomIn = function (zoomScale) { if (zoomScale === undefined) { zoomScale = getZoomScale(); } scale /= zoomScale; }; this.zoomOut = function (zoomScale) { if (zoomScale === undefined) { zoomScale = getZoomScale(); } scale *= zoomScale; }; this.pan = function (distance) { distance.transformDirection(this.object.matrix); distance.multiplyScalar(scope.userPanSpeed); this.object.position.add(distance); this.center.add(distance); }; this.update = function() { var position = this.object.position; var offset = position.clone().sub(this.center); // angle from z-axis around y-axis var theta = Math.atan2(offset.x, offset.z); // angle from y-axis var phi = Math.atan2(Math.sqrt(offset.x * offset.x + offset.z * offset.z), offset.y); if (this.autoRotate) { this.rotateLeft(getAutoRotationAngle()); } theta += thetaDelta; phi += phiDelta; // restrict phi to be between desired limits phi = Math.max(this.minPolarAngle, Math.min(this.maxPolarAngle, phi)); // restrict phi to be betwee EPS and PI-EPS phi = Math.max(EPS, Math.min(Math.PI - EPS, phi)); var radius = offset.length() * scale; // restrict radius to be between desired limits radius = Math.max(this.minDistance, Math.min(this.maxDistance, radius)); offset.x = radius * Math.sin(phi) * Math.sin(theta); offset.y = radius * Math.cos(phi); offset.z = radius * Math.sin(phi) * Math.cos(theta); position.copy(this.center).add(offset); this.object.lookAt(this.center); thetaDelta = 0; phiDelta = 0; scale = 1; if (lastPosition.distanceTo(this.object.position) > 0) { this.dispatchEvent(changeEvent); lastPosition.copy(this.object.position); } }; function getAutoRotationAngle() { return 2 * Math.PI/60/60 * scope.autoRotateSpeed; } function getZoomScale() { return Math.pow(0.95, scope.userZoomSpeed); } function onMouseDown(event) { if (scope.enabled === false) return; if (scope.userRotate === false) return; event.preventDefault(); if (event.button === 0) { state = STATE.ROTATE; rotateStart.set(event.clientX, event.clientY); } else if (event.button === 1) { state = STATE.ZOOM; zoomStart.set(event.clientX, event.clientY); } else if (event.button === 2) { state = STATE.PAN; } document.addEventListener('mousemove', onMouseMove, false); document.addEventListener('mouseup', onMouseUp, false); } function onMouseMove(event) { if (scope.enabled === false) return; event.preventDefault(); if (state === STATE.ROTATE) { rotateEnd.set(event.clientX, event.clientY); rotateDelta.subVectors(rotateEnd, rotateStart); scope.rotateLeft(2 * Math.PI * rotateDelta.x/PIXELS_PER_ROUND * scope.userRotateSpeed); scope.rotateUp(2 * Math.PI * rotateDelta.y/PIXELS_PER_ROUND * scope.userRotateSpeed); rotateStart.copy(rotateEnd); } else if (state === STATE.ZOOM) { zoomEnd.set(event.clientX, event.clientY); zoomDelta.subVectors(zoomEnd, zoomStart); if (zoomDelta.y > 0) { scope.zoomIn(); } else { scope.zoomOut(); } zoomStart.copy(zoomEnd); } else if (state === STATE.PAN) { var movementX = event.movementX || event.mozMovementX || event.webkitMovementX || 0; var movementY = event.movementY || event.mozMovementY || event.webkitMovementY || 0; scope.pan(new THREE.Vector3(- movementX, movementY, 0)); } } function onMouseUp(event) { if (scope.enabled === false) return; if (scope.userRotate === false) return; document.removeEventListener('mousemove', onMouseMove, false); document.removeEventListener('mouseup', onMouseUp, false); state = STATE.NONE; } function onMouseWheel(event) { if (scope.enabled === false) return; if (scope.userZoom === false) return; var delta = 0; if (event.wheelDelta) { // WebKit/Opera/Explorer 9 delta = event.wheelDelta; } else if (event.detail) { // Firefox delta = - event.detail; } if (delta > 0) { scope.zoomOut(); } else { scope.zoomIn(); } } function onKeyDown(event) { if (scope.enabled === false) return; if (scope.userPan === false) return; switch (event.keyCode) { case scope.keys.UP: scope.pan(new THREE.Vector3(0, 1, 0)); break; case scope.keys.BOTTOM: scope.pan(new THREE.Vector3(0, - 1, 0)); break; case scope.keys.LEFT: scope.pan(new THREE.Vector3(- 1, 0, 0)); break; case scope.keys.RIGHT: scope.pan(new THREE.Vector3(1, 0, 0)); break; } } this.domElement.addEventListener('contextmenu', function (event) { event.preventDefault(); }, false); this.domElement.addEventListener('mousedown', onMouseDown, false); this.domElement.addEventListener('mousewheel', onMouseWheel, false); this.domElement.addEventListener('DOMMouseScroll', onMouseWheel, false); // firefox this.domElement.addEventListener('keydown', onKeyDown, false); }; THREE.OrbitControls.prototype = Object.create(THREE.EventDispatcher.prototype);
isn' t control.target? – Tlatis
'controls.center' è stato rinominato in' controls.target' ad un certo punto –