三维菱形圆球变换特效
代码语言:html
所属分类:三维
下面为部分代码预览,完整代码请点击下载或在bfwstudio webide中打开
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title> - Sphere of Boxes | three.js</title> <style> body { margin: 0; } canvas { display: block; } </style> </head> <body translate="no"> <script src='https://cdnjs.cloudflare.com/ajax/libs/three.js/92/three.min.js'></script> <script> /** * @author qiao / https://github.com/qiao * @author mrdoob / http://mrdoob.com * @author alteredq / http://alteredqualia.com/ * @author WestLangley / http://github.com/WestLangley * @author erich666 / http://erichaines.com */ // This set of controls performs orbiting, dollying (zooming), and panning. // Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default). // // Orbit - left mouse / touch: one finger move // Zoom - middle mouse, or mousewheel / touch: two finger spread or squish // Pan - right mouse, or arrow keys / touch: three finger swipe THREE.OrbitControls = function (object, domElement) { this.object = object; this.domElement = (domElement !== undefined) ? domElement: document; // Set to false to disable this control this.enabled = true; // "target" sets the location of focus, where the object orbits around this.target = new THREE.Vector3(); // How far you can dolly in and out ( PerspectiveCamera only ) this.minDistance = 0; this.maxDistance = Infinity; // How far you can zoom in and out ( OrthographicCamera only ) this.minZoom = 0; this.maxZoom = Infinity; // How far you can orbit vertically, upper and lower limits. // Range is 0 to Math.PI radians. this.minPolarAngle = 0; // radians this.maxPolarAngle = Math.PI; // radians // How far you can orbit horizontally, upper and lower limits. // If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ]. this.minAzimuthAngle = - Infinity; // radians this.maxAzimuthAngle = Infinity; // radians // Set to true to enable damping (inertia) // If damping is enabled, you must call controls.update() in your animation loop this.enableDamping = false; this.dampingFactor = 0.25; // This option actually enables dollying in and out; left as "zoom" for backwards compatibility. // Set to false to disable zooming this.enableZoom = true; this.zoomSpeed = 1.0; // Set to false to disable rotating this.enableRotate = true; this.rotateSpeed = 1.0; // Set to false to disable panning this.enablePan = true; this.keyPanSpeed = 7.0; // pixels moved per arrow key push // Set to true to automatically rotate around the target // If auto-rotate is enabled, you must call controls.update() in your animation loop this.autoRotate = false; this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60 // Set to false to disable use of the keys this.enableKeys = true; // The four arrow keys this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 }; // Mouse buttons this.mouseButtons = { ORBIT: THREE.MOUSE.LEFT, ZOOM: THREE.MOUSE.MIDDLE, PAN: THREE.MOUSE.RIGHT }; // for reset this.target0 = this.target.clone(); this.position0 = this.object.position.clone(); this.zoom0 = this.object.zoom; // // public methods // this.getPolarAngle = function () { return spherical.phi; }; this.getAzimuthalAngle = function () { return spherical.theta; }; this.saveState = function () { scope.target0.copy(scope.target); scope.position0.copy(scope.object.position); scope.zoom0 = scope.object.zoom; }; this.reset = function () { scope.target.copy(scope.target0); scope.object.position.copy(scope.position0); scope.object.zoom = scope.zoom0; scope.object.updateProjectionMatrix(); scope.dispatchEvent(changeEvent); scope.update(); state = STATE.NONE; }; // this method is exposed, but perhaps it would be better if we can make it private... this.update = function () { var offset = new THREE.Vector3(); // so camera.up is the orbit axis var quat = new THREE.Quaternion().setFromUnitVectors(object.up, new THREE.Vector3(0, 1, 0)); var quatInverse = quat.clone().inverse(); var lastPosition = new THREE.Vector3(); var lastQuaternion = new THREE.Quaternion(); return function update() { var position = scope.object.position; offset.copy(position).sub(scope.target); // rotate offset to "y-axis-is-up" space offset.applyQuaternion(quat); // angle from z-axis around y-axis spherical.setFromVector3(offset); if (scope.autoRotate && state === STATE.NONE) { rotateLeft(getAutoRotationAngle()); } spherical.theta += sphericalDelta.theta; spherical.phi += sphericalDelta.phi; // restrict theta to be between desired limits spherical.theta = Math.max(scope.minAzimuthAngle, Math.min(scope.maxAzimuthAngle, spherical.theta)); // restrict phi to be between desired limits spherical.phi = Math.max(scope.minPolarAngle, Math.min(scope.maxPolarAngle, spherical.phi)); spherical.makeSafe(); spherical.radius *= scale; // restrict radius to be between desired limits spherical.radius = Math.max(scope.minDistance, Math.min(scope.maxDistance, spherical.radius)); // move target to panned location scope.target.add(panOffset); offset.setFromSpherical(spherical); // rotate offset back to "camera-up-vector-is-up" space offset.applyQuaternion(quatInverse); position.copy(scope.target).add(offset); scope.object.lookAt(scope.target); if (scope.enableDamping === true) { sphericalDelta.theta *= (1 - scope.dampingFactor); sphericalDelta.phi *= (1 - scope.dampingFactor); } else { sphericalDelta.set(0, 0, 0); } scale = 1; panOffset.set(0, 0, 0); // update condition is: // min(camera displacement, camera rotation in radians)^2 > EPS // using small-angle approximation cos(x/2) = 1 - x^2 / 8 if (zoomChanged || lastPosition.distanceToSquared(scope.object.position) > EPS || 8 * (1 - lastQuaternion.dot(scope.object.quaternion)) > EPS) { scope.dispatchEvent(changeEvent); lastPosition.copy(scope.object.position); lastQuaternion.copy(scope.object.quaternion); zoomChanged = false; return true; } return false; }; }(); this.dispose = function () { scope.domElement.removeEventListener('contextmenu', onContextMenu, false); scope.domElement.removeEventListener('mousedown', onMouseDown, false); scope.domElement.removeEventListener('wheel', onMouseWheel, false); scope.domElement.removeEventListener('touchstart', onTouchStart, false); scope.domElement.removeEventListener('touchend', onTouchEnd, false); scope.domElement.removeEventListener('touchmove', onTouchMove, false); document.removeEventListener('mousemove', onMouseMove, false); document.removeEventListener('mouseup', onMouseUp, false); window.removeEventListener('keydown', onKeyDown, false); //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here? }; // // internals // var scope = this; var changeEvent = { type: 'change' }; var startEvent = { type: 'start' }; var endEvent = { type: 'end' }; var STATE = { NONE: - 1, ROTATE: 0, DOLLY: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_DOLLY: 4, TOUCH_PAN: 5 }; var state = STATE.NONE; var EPS = 0.000001; // current position in spherical coordinates var spherical = new THREE.Spherical(); var sphericalDelta = new THREE.Spherical(); var scale = 1; var panOffset = new THREE.Vector3(); var zoomChanged = false; var rotateStart = new THREE.Vector2(); var rotateEnd = new THREE.Vector2(); var rotateDelta = new THREE.Vector2(); var panStart = new THREE.Vector2(); var panEnd = new THREE.Vector2(); var panDelta = new THREE.Vector2(); var dollyStart = new THREE.Vector2(); var dollyEnd = new THREE.Vector2(); var dollyDelta = new THREE.Vector2(); function getAutoRotationAngle() { return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed; } function getZoomScale() { return Math.pow(0.95, scope.zoomSpeed); } function rotateLeft(angle) { sphericalDelta.theta -= angle; } function rotateUp(angle) { sphericalDelta.phi -= angle; } var panLeft = function () { var v = new THREE.Vector3(); return function panLeft(distance, objectMatrix) { v.setFromMatrixColumn(objectMatrix, 0); // get X column of objectMatrix v.multiplyScalar(- distance); panOffset.add(v); }; }(); var panUp = function () { var v = new THREE.Vector3(); return function panUp(distance, objectMatrix) { v.setFromMatrixColumn(objectMatrix, 1); // get Y column of objectMatrix v.multiplyScalar(distance); panOffset.add(v); }; }(); // deltaX and deltaY are in pixels; right and down are positive var pan = function () { var offset = new THREE.Vector3(); return function pan(deltaX, deltaY) { var element = scope.domElement === document ? scope.domElement.body: scope.domElement; if (scope.object.isPerspectiveCamera) { // perspective var position = scope.object.position; offset.copy(position).sub(scope.target); var targetDistance = offset.length(); // half of the fov is center to top of screen targetDistance *= Math.tan((scope.object.fov / 2) * Math.PI / 180.0); // we actually don't use screenWidth, since perspective camera is fixed to screen height panLeft(2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix); panUp(2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix); } else if (scope.object.isOrthographicCamera) { // orthographic panLeft(deltaX * (scope.object.right - scope.object.left) / scope.object.zoom / element.clientWidth, scope.object.matrix); panUp(deltaY * (scope.object.top - scope.object.bottom) / scope.object.zoom / element.clientHeight, scope.object.matrix); } else { // camera neither orthographic nor perspective console.warn('WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.'); scope.enablePan = false; } }; }(); function dollyIn(dollyScale) { if (scope.object.isPerspectiveCamera) { scale /= dollyScale; } else if (scope.object.isOrthographicCamera) { scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom * dollyScale)); scope.object.updateProjectionMatrix(); zoomChanged = true; } else { console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.'); scope.enableZoom = false; } } function dollyOut(dollyScale) { if (scope.object.isPerspectiveCamera) { scale *= dollyScale; } else if (scope.object.isOrthographicCamera) { scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom / dollyScale)); scope.object.updateProjectionMatrix(); zoomChanged = true; } else { console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.'); scope.enableZoom = false; } } // // event callbacks - update the object state // function handleMouseDownRotate(event) { //console.log( 'handleMouseDownRotate' ); rotateStart.set(event.clientX, event.clientY); } function handleMouseDownDolly(event) { //console.log( 'handleMouseDownDolly' ); dollyStart.set(event.clientX, event.clientY); } function handleMouseDownPan(event) { //console.log( 'handleMouseDownPan' ); panStart.set(event.clientX, event.clientY); } function handleMouseMoveRotate(event) { //console.log( 'handleMouseMoveRotate' ); rotateEnd.set(event.clientX, event.clientY); rotateDelta.subVectors(rotateEnd, rotateStart); var element = scope.domElement === document ? scope.domElement.body: scope.domElement; // rotating across whole screen goes 360 degrees around rotateLeft(2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed); // rotating up and down along whole screen attempts to go 360, but limited to 180 rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed); rotateStart.copy(rotateEnd); scope.update(); } function handleMouseMoveDolly(event) { //console.log( 'handleMouseMoveDolly' ); dollyEnd.set(event.clientX, event.clientY); dollyDelta.subVectors(dollyEnd, dollyStart); if (dollyDelta.y > 0) { dollyIn(getZoomScale()); } else if (dollyDelta.y < 0) { dollyOut(getZoomScale()); } dollyStart.copy(dollyEnd); scope.update(); } function handleMouseMovePan(event) { //console.log( 'handleMouseMovePan' ); panEnd.set(event.clientX, event.clientY); panDelta.subVectors(panEnd, panStart); pan(panDelta.x, panDelta.y); panStart.copy(panEnd); scope.update(); } function handleMouseUp(event) { // console.log( 'handleMouseUp' ); } function handleMouseWheel(event) { // console.log( 'handleMouseWheel' ); if (event.deltaY < 0) { dollyOut(getZoomScale()); } else if (event.deltaY > 0) { dollyIn(getZoomScale()); } scope.update(); } function handleKeyDown(event) { //console.log( 'handleKeyDown' ); switch (event.keyCode) { case scope.keys.UP: pan(0, scope.keyPanSpeed); scope.update(); break; case scope.keys.BOTTOM: pan(0, - scope.keyPanSpeed); scope.update(); break; case scope.keys.LEFT: pan(scope.keyPanSpeed, 0); scope.update(); break; case scope.keys.RIGHT: pan(- scope.keyPanSpeed, 0); scope.update(); break; } } function handleTouchStartRotate(event) { //console.log( 'handleTouchStartRotate' ); rotateStart.set(event.touches[0].pageX, event.touches[0].pageY); } function handleTouchStartDolly(event) { //console.log( 'handleTouchStartDolly' ); 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 handleTouchStartPan(event) { //console.log( 'handleTouchStartPan' ); panStart.set(event.touches[0].pageX, event.touches[0].pageY); } function handleTouchMoveRotate(event) { //console.log( 'handleTouchMoveRotate' ); rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY); rotateDelta.subVectors(rotateEnd, rotateStart); var element = scope.domElement === document ? scope.domElement.body: scope.domElement; // rotating across whole screen goes 360 degrees around rotateLeft(2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed); // rotating up and down along whole screen attempts to go 360, but limited to 180 rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed); rotateStart.copy(rotateEnd); scope.update(); } function handleTouchMoveDolly(event) { //console.log( 'handleTouchMoveDolly' ); 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(); } function handleTouchMovePan(event) { //console.log( 'handleTouchMovePan' ); panEnd.set(event.touches[0].pageX, event.touches[0].pageY); panDelta.subVectors(panEnd, panStart); pan(panDelta.x, panDelta.y); panStart.copy(panEnd); scope.update(); } function handleTouchEnd(event) { //console.log( 'handleTouchEnd' ); } // // event handlers - FSM: listen for events and reset state // function onMouseDown(event) { if (scope.enabled === false) return; event.preventDefault(); switch (event.button) { case scope.mouseButtons.ORBIT: if (scope.enableRotate === false) return; handleMouseDownRotate(event); state = STATE.ROTATE; break; case scope.mouseButtons.ZOOM: if (scope.enableZoom === false) return; handleMouseDownDolly(event); state = STATE.DOLLY; break; case scope.mouseButtons.PAN: if (scope.enablePan === false) return; handleMouseDownPan(event); state = STATE.PAN; 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(); handleMouseWheel(event); scope.dispatchEvent(startEvent); // not sure why these are here... 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; switch (event.touches.length) { case 1: // one-fingered touch: rotate if (scope.enableRotate === false) return; handleTouchStartRotate(event); state = STATE.TOUCH_ROTATE; break; case 2: // two-fingered touch: dolly if (scope.enableZoom === false) return; handleTouchStartDolly(event); state = STATE.TOUCH_DOLLY; break; case 3: // three-fingered touch: pan if (scope.enablePan === false) return; handleTouchStartPan(event); state = STATE.TOUCH_PAN; 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 (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 if (scope.enableZoom === false) return; if (state !== STATE.TOUCH_DOLLY) return; // is this needed?... handleTouchMoveDolly(event); break; case 3: // three-fingered touch: pan if (scope.enablePan === false) return; if (state !== STATE.TOUCH_PAN) return; // is this needed?... handleTouchMovePan(event); 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); window.addEventListener('keydown', onKeyDown, false); // force an update at start this.update(); }; THREE.OrbitControls.prototype = Object.create(THREE.EventDispatcher.prototype); THREE.OrbitControls.prototype.constructor = THREE.OrbitControls; Object.defineProperties(THREE.OrbitControls.prototype, { center: { get: function () { console.warn('THREE.OrbitControls: .center has been renamed to .target'); return this.target; } }, // backward compatibility noZoom: { get: function () { console.warn('THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.'); return ! this.enableZoom; }, set: function (value) { console.warn('THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.'); this.enableZoom = ! value; } }, noRotate: { get: function () { console.warn('THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.'); return ! this.enableRotate; }, set: function (value) { console.warn('THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.'); this.enableRotate = ! value; } }, noPan: { get: function () { console.warn('THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.'); return ! this.enablePan; }, set: function (value) { console.warn('THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.'); this.enablePan = ! value; } }, noKeys: { get: function () { console.warn('THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.'); return ! this.enableKeys; }, set:.........完整代码请登录后点击上方下载按钮下载查看
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