Verison 1.0.3 Release
Based on Buildbotics 0.4.14
This commit is contained in:
OneFinityCNC
682
src/js/orbit.js
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682
src/js/orbit.js
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/**
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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 jcoffland / https://buildbotics.com/
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*/
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'use strict'
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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
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// (+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 arrow keys / touch: two-finger move
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var OrbitControls = function (object, domElement) {
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this.object = object;
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this.domElement = domElement != undefined ? domElement : document;
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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 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, call controls.update() in your animation loop
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this.enableDamping = false;
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this.dampingFactor = 0.25;
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// This option enables dollying in and out;
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// 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, 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 = {
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ORBIT: THREE.MOUSE.LEFT, ZOOM: THREE.MOUSE.MIDDLE, PAN: THREE.MOUSE.RIGHT
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};
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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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// public methods
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this.getPolarAngle = function () {return spherical.phi}
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this.getAzimuthalAngle = function () {return spherical.theta}
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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.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()
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.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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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 =
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Math.max(scope.minAzimuthAngle,
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Math.min(scope.maxAzimuthAngle, spherical.theta));
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// restrict phi to be between desired limits
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spherical.phi =
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Math.max(scope.minPolarAngle,
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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 =
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Math.max(10, Math.min(scope.object.far * 0.8, 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) {
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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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// 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 || scale != 1 ||
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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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scale = 1;
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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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}
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// internals
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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, ROTATE: 0, DOLLY: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_DOLLY_PAN: 4
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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() {return Math.pow(0.95, scope.zoomSpeed)}
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function rotateLeft(angle) {sphericalDelta.theta -= angle}
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function rotateUp(angle) {sphericalDelta.phi -= angle}
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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) 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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function unknownCamera() {
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console.warn('WARNING: OrbitControls.js encountered an unknown camera ' +
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'type - pan & zoom disabled.');
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scope.enablePan = false;
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scope.enableZoom = false;
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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 ?
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scope.domElement.body : scope.domElement;
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if (scope.object.isPerspectiveCamera) {
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// perspective
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offset.copy(scope.object.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,
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scope.object.matrix);
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panUp(2 * deltaY * targetDistance / element.clientHeight,
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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) /
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scope.object.zoom / element.clientWidth, scope.object.matrix);
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panUp(deltaY * (scope.object.top - scope.object.bottom) /
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scope.object.zoom / element.clientHeight, scope.object.matrix);
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} else unknownCamera();
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}
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}()
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function dollyIn(dollyScale) {
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if (scope.object.isPerspectiveCamera) scale /= dollyScale;
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else if (scope.object.isOrthographicCamera) {
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scope.object.zoom =
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Math.max(scope.minZoom,
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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 unknownCamera();
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}
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function dollyOut(dollyScale) {
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if (scope.object.isPerspectiveCamera) scale *= dollyScale;
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else if (scope.object.isOrthographicCamera) {
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scope.object.zoom =
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Math.max(scope.minZoom,
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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 unknownCamera();
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}
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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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.multiplyScalar(scope.rotateSpeed);
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var element = scope.domElement === document ?
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scope.domElement.body : scope.domElement;
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// yes, height
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rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight);
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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) dollyIn(getZoomScale());
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else if (dollyDelta.y < 0) dollyOut(getZoomScale());
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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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function handleMouseWheel(event) {
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if (event.deltaY < 0) dollyOut(getZoomScale());
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else if (event.deltaY > 0) dollyIn(getZoomScale());
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scope.update();
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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;
|
||||
|
||||
case scope.keys.RIGHT:
|
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pan(-scope.keyPanSpeed, 0);
|
||||
scope.update();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
function handleTouchStartRotate(event) {
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rotateStart.set(event.touches[0].pageX, event.touches[0].pageY);
|
||||
}
|
||||
|
||||
|
||||
function handleTouchStartDollyPan(event) {
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if (scope.enableZoom) {
|
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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);
|
||||
|
||||
dollyStart.set(0, distance);
|
||||
}
|
||||
|
||||
if (scope.enablePan) {
|
||||
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 handleTouchMoveRotate(event) {
|
||||
rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY);
|
||||
rotateDelta.subVectors(rotateEnd, rotateStart)
|
||||
.multiplyScalar(scope.rotateSpeed);
|
||||
|
||||
var element = scope.domElement === document ?
|
||||
scope.domElement.body : scope.domElement;
|
||||
|
||||
// yes, height
|
||||
rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight);
|
||||
rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);
|
||||
rotateStart.copy(rotateEnd);
|
||||
scope.update();
|
||||
}
|
||||
|
||||
|
||||
function handleTouchMoveDollyPan(event) {
|
||||
if (scope.enableZoom) {
|
||||
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);
|
||||
}
|
||||
|
||||
|
||||
if (scope.enablePan) {
|
||||
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);
|
||||
}
|
||||
|
||||
scope.update();
|
||||
}
|
||||
|
||||
|
||||
function handleTouchEnd(event) {}
|
||||
|
||||
|
||||
// event handlers - listen for events and reset state
|
||||
function onMouseDown(event) {
|
||||
if (!scope.enabled) return;
|
||||
|
||||
event.preventDefault();
|
||||
|
||||
switch (event.button) {
|
||||
case scope.mouseButtons.ORBIT:
|
||||
if (!scope.enableRotate) return;
|
||||
handleMouseDownRotate(event);
|
||||
state = STATE.ROTATE;
|
||||
break;
|
||||
|
||||
case scope.mouseButtons.ZOOM:
|
||||
if (!scope.enableZoom) return;
|
||||
handleMouseDownDolly(event);
|
||||
state = STATE.DOLLY;
|
||||
break;
|
||||
|
||||
case scope.mouseButtons.PAN:
|
||||
if (!scope.enablePan) 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) return;
|
||||
|
||||
event.preventDefault();
|
||||
|
||||
switch (state) {
|
||||
case STATE.ROTATE:
|
||||
if (!scope.enableRotate) return;
|
||||
handleMouseMoveRotate(event);
|
||||
break;
|
||||
|
||||
case STATE.DOLLY:
|
||||
if (!scope.enableZoom) return;
|
||||
handleMouseMoveDolly(event);
|
||||
break;
|
||||
|
||||
case STATE.PAN:
|
||||
if (!scope.enablePan) return;
|
||||
handleMouseMovePan(event);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
function onMouseUp(event) {
|
||||
if (!scope.enabled) 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 || !scope.enableZoom ||
|
||||
(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 || !scope.enableKeys || !scope.enablePan) return;
|
||||
|
||||
handleKeyDown(event);
|
||||
}
|
||||
|
||||
|
||||
function onTouchStart(event) {
|
||||
if (!scope.enabled) return;
|
||||
|
||||
event.preventDefault();
|
||||
|
||||
switch (event.touches.length) {
|
||||
case 1: // one-fingered touch: rotate
|
||||
if (!scope.enableRotate) return;
|
||||
handleTouchStartRotate(event);
|
||||
state = STATE.TOUCH_ROTATE;
|
||||
break;
|
||||
|
||||
case 2: // two-fingered touch: dolly-pan
|
||||
if (!scope.enableZoom && !scope.enablePan) 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.enabled) return;
|
||||
|
||||
event.preventDefault();
|
||||
event.stopPropagation();
|
||||
|
||||
switch (event.touches.length) {
|
||||
case 1: // one-fingered touch: rotate
|
||||
if (!scope.enableRotate) return;
|
||||
if (state != STATE.TOUCH_ROTATE) return; // is this needed?
|
||||
|
||||
handleTouchMoveRotate(event);
|
||||
break;
|
||||
|
||||
case 2: // two-fingered touch: dolly-pan
|
||||
if (!scope.enableZoom && !scope.enablePan) return;
|
||||
if (state != STATE.TOUCH_DOLLY_PAN) return; // is this needed?
|
||||
|
||||
handleTouchMoveDollyPan(event);
|
||||
break;
|
||||
|
||||
default: state = STATE.NONE;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
function onTouchEnd(event) {
|
||||
if (!scope.enabled) return;
|
||||
|
||||
handleTouchEnd(event);
|
||||
scope.dispatchEvent(endEvent);
|
||||
state = STATE.NONE;
|
||||
}
|
||||
|
||||
|
||||
function onContextMenu(event) {
|
||||
if (!scope.enabled) 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);
|
||||
|
||||
this.update(); // force an update at start
|
||||
}
|
||||
|
||||
|
||||
OrbitControls.prototype = Object.create(THREE.EventDispatcher.prototype);
|
||||
OrbitControls.prototype.constructor = OrbitControls;
|
||||
module.exports = OrbitControls;
|
||||
Reference in New Issue
Block a user