三维菱形圆球变换特效-html代码-BFW代码库

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.maxAzimuthAn.........完整代码请登录后点击上方下载按钮下载查看