1020 lines
25 KiB
JavaScript
1020 lines
25 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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* @author ScieCode / http://github.com/sciecode
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*/
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import {
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EventDispatcher,
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MOUSE,
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Quaternion,
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Spherical,
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TOUCH,
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Vector2,
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Vector3
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} from "three";
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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 (+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 left mouse + ctrl/meta/shiftKey, 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 Vector3();
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// How far you can dolly in and out ( PerspectiveCamera only )
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this.minDistance = 0;
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this.maxDistance = Infinity;
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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, you must call controls.update() in your animation loop
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this.enableDamping = false;
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this.dampingFactor = 0.05;
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// This option actually enables dollying in and out; 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, you must 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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LEFT: MOUSE.ROTATE,
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MIDDLE: MOUSE.DOLLY,
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RIGHT: MOUSE.PAN
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};
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// Touch fingers
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this.touches = { ONE: TOUCH.ROTATE, TWO: TOUCH.DOLLY_PAN };
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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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//
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// public methods
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//
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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.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 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 Vector3();
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// so camera.up is the orbit axis
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var quat = new Quaternion().setFromUnitVectors(
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object.up,
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new Vector3(0, 1, 0)
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);
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var quatInverse = quat.clone().inverse();
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var lastPosition = new Vector3();
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var lastQuaternion = new 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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}
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if (scope.enableDamping) {
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spherical.theta += sphericalDelta.theta * scope.dampingFactor;
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spherical.phi += sphericalDelta.phi * scope.dampingFactor;
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} else {
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spherical.theta += sphericalDelta.theta;
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spherical.phi += sphericalDelta.phi;
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}
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// restrict theta to be between desired limits
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spherical.theta = Math.max(
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scope.minAzimuthAngle,
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Math.min(scope.maxAzimuthAngle, spherical.theta)
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);
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// restrict phi to be between desired limits
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spherical.phi = Math.max(
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scope.minPolarAngle,
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Math.min(scope.maxPolarAngle, spherical.phi)
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);
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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(
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scope.minDistance,
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Math.min(scope.maxDistance, spherical.radius)
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);
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// move target to panned location
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if (scope.enableDamping === true) {
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scope.target.addScaledVector(panOffset, scope.dampingFactor);
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} else {
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scope.target.add(panOffset);
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}
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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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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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scale = 1;
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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 (
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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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) {
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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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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 = {
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NONE: -1,
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ROTATE: 0,
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DOLLY: 1,
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PAN: 2,
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TOUCH_ROTATE: 3,
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TOUCH_PAN: 4,
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TOUCH_DOLLY_PAN: 5,
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TOUCH_DOLLY_ROTATE: 6
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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 Spherical();
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var sphericalDelta = new Spherical();
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var scale = 1;
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var panOffset = new Vector3();
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var zoomChanged = false;
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var rotateStart = new Vector2();
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var rotateEnd = new Vector2();
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var rotateDelta = new Vector2();
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var panStart = new Vector2();
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var panEnd = new Vector2();
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var panDelta = new Vector2();
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var dollyStart = new Vector2();
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var dollyEnd = new Vector2();
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var dollyDelta = new 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() {
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return Math.pow(0.95, scope.zoomSpeed);
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}
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function rotateLeft(angle) {
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sphericalDelta.theta -= angle;
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}
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function rotateUp(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 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 Vector3();
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return function panUp(distance, objectMatrix) {
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if (scope.screenSpacePanning === true) {
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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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// 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 Vector3();
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return function pan(deltaX, deltaY) {
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var element =
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scope.domElement === document
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? scope.domElement.body
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: scope.domElement;
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if (scope.object.isPerspectiveCamera) {
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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 use only clientHeight here so aspect ratio does not distort speed
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panLeft(
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(2 * deltaX * targetDistance) / element.clientHeight,
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scope.object.matrix
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);
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panUp(
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(2 * deltaY * targetDistance) / element.clientHeight,
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scope.object.matrix
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);
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} else if (scope.object.isOrthographicCamera) {
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// orthographic
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panLeft(
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(deltaX * (scope.object.right - scope.object.left)) /
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scope.object.zoom /
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element.clientWidth,
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scope.object.matrix
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);
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panUp(
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(deltaY * (scope.object.top - scope.object.bottom)) /
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scope.object.zoom /
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element.clientHeight,
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scope.object.matrix
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);
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} else {
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// camera neither orthographic nor perspective
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console.warn(
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"WARNING: OrbitControls.js encountered an unknown camera type - pan disabled."
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);
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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.isPerspectiveCamera) {
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scale /= dollyScale;
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} else if (scope.object.isOrthographicCamera) {
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scope.object.zoom = Math.max(
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scope.minZoom,
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Math.min(scope.maxZoom, scope.object.zoom * dollyScale)
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);
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scope.object.updateProjectionMatrix();
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zoomChanged = true;
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} else {
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console.warn(
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"WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."
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);
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scope.enableZoom = false;
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}
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}
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function dollyOut(dollyScale) {
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if (scope.object.isPerspectiveCamera) {
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scale *= dollyScale;
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} else if (scope.object.isOrthographicCamera) {
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scope.object.zoom = Math.max(
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scope.minZoom,
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Math.min(scope.maxZoom, scope.object.zoom / dollyScale)
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);
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scope.object.updateProjectionMatrix();
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zoomChanged = true;
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} else {
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console.warn(
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"WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."
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);
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scope.enableZoom = false;
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}
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}
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//
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// event callbacks - update the object state
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//
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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
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.subVectors(rotateEnd, rotateStart)
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.multiplyScalar(scope.rotateSpeed);
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var element =
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scope.domElement === document ? scope.domElement.body : scope.domElement;
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rotateLeft((2 * Math.PI * rotateDelta.x) / element.clientHeight); // yes, height
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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) {
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dollyIn(getZoomScale());
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} else if (dollyDelta.y < 0) {
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dollyOut(getZoomScale());
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}
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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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// no-op
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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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}
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function handleKeyDown(event) {
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var needsUpdate = false;
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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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needsUpdate = true;
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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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needsUpdate = true;
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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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needsUpdate = true;
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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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needsUpdate = true;
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break;
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}
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if (needsUpdate) {
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// prevent the browser from scrolling on cursor keys
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event.preventDefault();
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scope.update();
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}
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}
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function handleTouchStartRotate(event) {
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if (event.touches.length == 1) {
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rotateStart.set(event.touches[0].pageX, event.touches[0].pageY);
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} else {
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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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rotateStart.set(x, y);
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}
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}
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function handleTouchStartPan(event) {
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if (event.touches.length == 1) {
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panStart.set(event.touches[0].pageX, event.touches[0].pageY);
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} else {
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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 handleTouchStartDolly(event) {
|
|
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 handleTouchStartDollyPan(event) {
|
|
if (scope.enableZoom) handleTouchStartDolly(event);
|
|
|
|
if (scope.enablePan) handleTouchStartPan(event);
|
|
}
|
|
|
|
function handleTouchStartDollyRotate(event) {
|
|
if (scope.enableZoom) handleTouchStartDolly(event);
|
|
|
|
if (scope.enableRotate) handleTouchStartRotate(event);
|
|
}
|
|
|
|
function handleTouchMoveRotate(event) {
|
|
if (event.touches.length == 1) {
|
|
rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY);
|
|
} else {
|
|
var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
|
|
var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
|
|
|
|
rotateEnd.set(x, y);
|
|
}
|
|
|
|
rotateDelta
|
|
.subVectors(rotateEnd, rotateStart)
|
|
.multiplyScalar(scope.rotateSpeed);
|
|
|
|
var element =
|
|
scope.domElement === document ? scope.domElement.body : scope.domElement;
|
|
|
|
rotateLeft((2 * Math.PI * rotateDelta.x) / element.clientHeight); // yes, height
|
|
|
|
rotateUp((2 * Math.PI * rotateDelta.y) / element.clientHeight);
|
|
|
|
rotateStart.copy(rotateEnd);
|
|
}
|
|
|
|
function handleTouchMovePan(event) {
|
|
if (event.touches.length == 1) {
|
|
panEnd.set(event.touches[0].pageX, event.touches[0].pageY);
|
|
} else {
|
|
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);
|
|
}
|
|
|
|
function handleTouchMoveDolly(event) {
|
|
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);
|
|
}
|
|
|
|
function handleTouchMoveDollyPan(event) {
|
|
if (scope.enableZoom) handleTouchMoveDolly(event);
|
|
|
|
if (scope.enablePan) handleTouchMovePan(event);
|
|
}
|
|
|
|
function handleTouchMoveDollyRotate(event) {
|
|
if (scope.enableZoom) handleTouchMoveDolly(event);
|
|
|
|
if (scope.enableRotate) handleTouchMoveRotate(event);
|
|
}
|
|
|
|
function handleTouchEnd(/*event*/) {
|
|
// no-op
|
|
}
|
|
|
|
//
|
|
// event handlers - FSM: listen for events and reset state
|
|
//
|
|
|
|
function onMouseDown(event) {
|
|
if (scope.enabled === false) return;
|
|
|
|
// Prevent the browser from scrolling.
|
|
|
|
event.preventDefault();
|
|
|
|
// Manually set the focus since calling preventDefault above
|
|
// prevents the browser from setting it automatically.
|
|
|
|
scope.domElement.focus ? scope.domElement.focus() : window.focus();
|
|
|
|
switch (event.button) {
|
|
case 0:
|
|
switch (scope.mouseButtons.LEFT) {
|
|
case MOUSE.ROTATE:
|
|
if (event.ctrlKey || event.metaKey || event.shiftKey) {
|
|
if (scope.enablePan === false) return;
|
|
|
|
handleMouseDownPan(event);
|
|
|
|
state = STATE.PAN;
|
|
} else {
|
|
if (scope.enableRotate === false) return;
|
|
|
|
handleMouseDownRotate(event);
|
|
|
|
state = STATE.ROTATE;
|
|
}
|
|
|
|
break;
|
|
|
|
case MOUSE.PAN:
|
|
if (event.ctrlKey || event.metaKey || event.shiftKey) {
|
|
if (scope.enableRotate === false) return;
|
|
|
|
handleMouseDownRotate(event);
|
|
|
|
state = STATE.ROTATE;
|
|
} else {
|
|
if (scope.enablePan === false) return;
|
|
|
|
handleMouseDownPan(event);
|
|
|
|
state = STATE.PAN;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
state = STATE.NONE;
|
|
}
|
|
|
|
break;
|
|
|
|
case 1:
|
|
switch (scope.mouseButtons.MIDDLE) {
|
|
case MOUSE.DOLLY:
|
|
if (scope.enableZoom === false) return;
|
|
|
|
handleMouseDownDolly(event);
|
|
|
|
state = STATE.DOLLY;
|
|
|
|
break;
|
|
|
|
default:
|
|
state = STATE.NONE;
|
|
}
|
|
|
|
break;
|
|
|
|
case 2:
|
|
switch (scope.mouseButtons.RIGHT) {
|
|
case MOUSE.ROTATE:
|
|
if (scope.enableRotate === false) return;
|
|
|
|
handleMouseDownRotate(event);
|
|
|
|
state = STATE.ROTATE;
|
|
|
|
break;
|
|
|
|
case MOUSE.PAN:
|
|
if (scope.enablePan === false) return;
|
|
|
|
handleMouseDownPan(event);
|
|
|
|
state = STATE.PAN;
|
|
|
|
break;
|
|
|
|
default:
|
|
state = STATE.NONE;
|
|
}
|
|
|
|
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();
|
|
|
|
scope.dispatchEvent(startEvent);
|
|
|
|
handleMouseWheel(event);
|
|
|
|
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;
|
|
|
|
event.preventDefault();
|
|
|
|
switch (event.touches.length) {
|
|
case 1:
|
|
switch (scope.touches.ONE) {
|
|
case TOUCH.ROTATE:
|
|
if (scope.enableRotate === false) return;
|
|
|
|
handleTouchStartRotate(event);
|
|
|
|
state = STATE.TOUCH_ROTATE;
|
|
|
|
break;
|
|
|
|
case TOUCH.PAN:
|
|
if (scope.enablePan === false) return;
|
|
|
|
handleTouchStartPan(event);
|
|
|
|
state = STATE.TOUCH_PAN;
|
|
|
|
break;
|
|
|
|
default:
|
|
state = STATE.NONE;
|
|
}
|
|
|
|
break;
|
|
|
|
case 2:
|
|
switch (scope.touches.TWO) {
|
|
case TOUCH.DOLLY_PAN:
|
|
if (scope.enableZoom === false && scope.enablePan === false) return;
|
|
|
|
handleTouchStartDollyPan(event);
|
|
|
|
state = STATE.TOUCH_DOLLY_PAN;
|
|
|
|
break;
|
|
|
|
case TOUCH.DOLLY_ROTATE:
|
|
if (scope.enableZoom === false && scope.enableRotate === false)
|
|
return;
|
|
|
|
handleTouchStartDollyRotate(event);
|
|
|
|
state = STATE.TOUCH_DOLLY_ROTATE;
|
|
|
|
break;
|
|
|
|
default:
|
|
state = STATE.NONE;
|
|
}
|
|
|
|
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 (state) {
|
|
case STATE.TOUCH_ROTATE:
|
|
if (scope.enableRotate === false) return;
|
|
|
|
handleTouchMoveRotate(event);
|
|
|
|
scope.update();
|
|
|
|
break;
|
|
|
|
case STATE.TOUCH_PAN:
|
|
if (scope.enablePan === false) return;
|
|
|
|
handleTouchMovePan(event);
|
|
|
|
scope.update();
|
|
|
|
break;
|
|
|
|
case STATE.TOUCH_DOLLY_PAN:
|
|
if (scope.enableZoom === false && scope.enablePan === false) return;
|
|
|
|
handleTouchMoveDollyPan(event);
|
|
|
|
scope.update();
|
|
|
|
break;
|
|
|
|
case STATE.TOUCH_DOLLY_ROTATE:
|
|
if (scope.enableZoom === false && scope.enableRotate === false) return;
|
|
|
|
handleTouchMoveDollyRotate(event);
|
|
|
|
scope.update();
|
|
|
|
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();
|
|
};
|
|
|
|
OrbitControls.prototype = Object.create(EventDispatcher.prototype);
|
|
OrbitControls.prototype.constructor = OrbitControls;
|
|
|
|
// This set of controls performs orbiting, dollying (zooming), and panning.
|
|
// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
|
|
// This is very similar to OrbitControls, another set of touch behavior
|
|
//
|
|
// Orbit - right mouse, or left mouse + ctrl/meta/shiftKey / touch: two-finger rotate
|
|
// Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
|
|
// Pan - left mouse, or arrow keys / touch: one-finger move
|
|
|
|
var MapControls = function(object, domElement) {
|
|
OrbitControls.call(this, object, domElement);
|
|
|
|
this.mouseButtons.LEFT = MOUSE.PAN;
|
|
this.mouseButtons.RIGHT = MOUSE.ROTATE;
|
|
|
|
this.touches.ONE = TOUCH.PAN;
|
|
this.touches.TWO = TOUCH.DOLLY_ROTATE;
|
|
};
|
|
|
|
MapControls.prototype = Object.create(EventDispatcher.prototype);
|
|
MapControls.prototype.constructor = MapControls;
|
|
|
|
export { OrbitControls, MapControls };
|