798 lines
22 KiB
JavaScript
798 lines
22 KiB
JavaScript
/*
|
|
Major modifications made to OrbitControls by NDean
|
|
*/
|
|
|
|
/**
|
|
* @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
|
|
*/
|
|
/*global THREE, console */
|
|
|
|
// This set of controls performs orbiting, dollying (zooming), and panning. It maintains
|
|
// the "up" direction as +Y, unlike the TrackballControls. Touch on tablet and phones is
|
|
// supported.
|
|
//
|
|
// 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 finter swipe
|
|
//
|
|
// This is a drop-in replacement for (most) TrackballControls used in examples.
|
|
// That is, include this js file and wherever you see:
|
|
// controls = new THREE.TrackballControls( camera );
|
|
// controls.target.z = 150;
|
|
// Simple substitute "OrbitControls" and the control should work as-is.
|
|
|
|
THREE.OrbitControls = function (object, domElement, thumbnailJson) {
|
|
|
|
this.object = object;
|
|
this.domElement = (domElement !== undefined) ? domElement : document;
|
|
|
|
// API
|
|
|
|
this.autoRotate = true;
|
|
this.fullRotation = true;
|
|
|
|
// Set to false to disable this control
|
|
this.enabled = true;
|
|
|
|
// "target" sets the location of focus, where the control orbits around
|
|
// and where it pans with respect to.
|
|
var aabbMax = thumbnailJson.aabb.max;
|
|
aabbMax = new THREE.Vector3(aabbMax.x, aabbMax.y, aabbMax.z);
|
|
|
|
var aabbMin = thumbnailJson.aabb.min;
|
|
aabbMin = new THREE.Vector3(aabbMin.x, aabbMin.y, aabbMin.z);
|
|
|
|
var midPoint = new THREE.Vector3();
|
|
midPoint.copy(aabbMax).add(aabbMin).multiplyScalar(0.5);
|
|
|
|
this.target = midPoint;
|
|
|
|
// center is old, deprecated; use "target" instead
|
|
this.center = this.target;
|
|
|
|
// This option actually enables dollying in and out; left as "zoom" for
|
|
// backwards compatibility
|
|
this.noZoom = false;
|
|
this.zoomSpeed = 1.0;
|
|
|
|
// Limits to how far you can dolly in and out
|
|
this.minDistance = 1;
|
|
this.maxDistance = Infinity;
|
|
|
|
// Set to true to disable this control
|
|
this.noRotate = false;
|
|
this.rotateSpeed = 1.0;
|
|
|
|
// Set to true to disable this control
|
|
this.noPan = true;
|
|
this.keyPanSpeed = 7.0; // pixels moved per arrow key push
|
|
|
|
//hack by NDean: prevent gimbal lock by adding slight value to mins/maxes
|
|
var offsetFromAxis = Math.PI / 180;
|
|
|
|
// How far you can orbit vertically, upper and lower limits.
|
|
// Range is 0 to Math.PI radians.
|
|
this.minPolarAngle = 0 + offsetFromAxis; // radians
|
|
this.maxPolarAngle = Math.PI - offsetFromAxis; // radians
|
|
|
|
// Set to true to disable use of the keys
|
|
this.noKeys = true;
|
|
|
|
// The four arrow keys
|
|
this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 };
|
|
|
|
////////////
|
|
// internals
|
|
|
|
//keep track of last user interaction so we can tween back to default camera position when user is idle
|
|
var idleTime = 0.75 * 1000;
|
|
var lastActionTime;
|
|
function actionBegun() { lastActionTime = undefined; }
|
|
function actionEnded() { lastActionTime = $.now(); }
|
|
|
|
var thumbnailCameraPosition = thumbnailJson.camera.position;
|
|
thumbnailCameraPosition = new THREE.Vector3(thumbnailCameraPosition.x, thumbnailCameraPosition.y, thumbnailCameraPosition.z);
|
|
|
|
var thumbnailCameraDirection = thumbnailJson.camera.direction;
|
|
thumbnailCameraDirection = new THREE.Vector3(thumbnailCameraDirection.x, thumbnailCameraDirection.y, thumbnailCameraDirection.z);
|
|
|
|
var cameraHeight = thumbnailCameraPosition.y;
|
|
var cameraVerticalAngle = 22.5 * (Math.PI / 180);
|
|
|
|
var zDiff = thumbnailCameraPosition.z - this.target.z;
|
|
var xDiff = thumbnailCameraPosition.x - this.target.x
|
|
var cameraAngle = Math.atan2( xDiff, zDiff); //horizontal angle
|
|
|
|
var cameraDistance = thumbnailCameraPosition.distanceTo(this.target);
|
|
|
|
//initial state
|
|
//if (this.autoRotate !== true) {
|
|
var position = new THREE.Vector3(
|
|
thumbnailCameraPosition.x,//this.target.x + cameraDistance * Math.sin(cameraAngle),
|
|
thumbnailCameraPosition.y,//cameraHeight,
|
|
thumbnailCameraPosition.z//this.target.z + cameraDistance * Math.cos(cameraAngle)
|
|
);
|
|
var pointToLookat = new THREE.Vector3();
|
|
pointToLookat.copy(thumbnailCameraPosition);
|
|
pointToLookat.sub(thumbnailCameraDirection);
|
|
|
|
this.object.position = position;
|
|
this.object.lookAt(pointToLookat); //this.target
|
|
//}
|
|
|
|
//for idle rotation or back-and-forth animation
|
|
var defaultAngle = cameraAngle;
|
|
var maxAngle = Math.PI / 6;
|
|
var currentAngle = 0;
|
|
var angleIteration = 0;
|
|
var rotationDelta = -0.01;
|
|
|
|
function resetRotation() {
|
|
currentAngle = defaultAngle;
|
|
angleIteration = 0;
|
|
}
|
|
|
|
var tweenDuration = 1500; //milliseconds
|
|
var isTweening = false;
|
|
|
|
var scope = this;
|
|
|
|
var EPS = 0.000001;
|
|
|
|
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 panOffset = new THREE.Vector3();
|
|
|
|
var offset = new THREE.Vector3();
|
|
|
|
var dollyStart = new THREE.Vector2();
|
|
var dollyEnd = new THREE.Vector2();
|
|
var dollyDelta = new THREE.Vector2();
|
|
|
|
var phiDelta = 0;
|
|
var thetaDelta = 0;
|
|
var scale = 1;
|
|
var pan = new THREE.Vector3();
|
|
|
|
var lastPosition = new THREE.Vector3();
|
|
|
|
// ignore scale
|
|
var pos = new THREE.Vector3(
|
|
this.target.x + cameraDistance * Math.sin(cameraAngle),
|
|
this.target.y + cameraDistance * Math.sin(cameraVerticalAngle),
|
|
this.target.z + cameraDistance * Math.cos(cameraAngle)
|
|
);
|
|
|
|
this.lastPosition = pos; //{ x: this.object.x, y: this.object.y, z: this.object.z };
|
|
|
|
var STATE = { NONE: -1, ROTATE: 0, DOLLY: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_DOLLY: 4, TOUCH_PAN: 5, IDLE: 6 };
|
|
|
|
var state = this.autoRotate ? STATE.IDLE : STATE.NONE;
|
|
|
|
// for reset
|
|
this.target0 = this.target.clone();
|
|
this.position0 = this.object.position.clone();
|
|
|
|
var quat = new THREE.Quaternion();
|
|
var quatInverse = quat.clone().inverse();
|
|
|
|
// events
|
|
|
|
var changeEvent = { type: 'change' };
|
|
var startEvent = { type: 'start' };
|
|
var endEvent = { type: 'end' };
|
|
|
|
this.cancelAllTweens = function () {
|
|
TWEEN.removeAll();
|
|
};
|
|
|
|
this.tweenToLastPosition = function () {
|
|
this.tweenCamera(this.lastPosition, tweenDuration, function () {
|
|
state = STATE.IDLE;
|
|
});
|
|
resetRotation();
|
|
};
|
|
|
|
this.tweenCamera = function (targetPosition, duration, callback) {
|
|
isTweening = true;
|
|
|
|
var rotationTween;
|
|
|
|
function onUpdate() {
|
|
if (isTweening === false) {
|
|
rotationTween.stop();
|
|
}
|
|
scope.object.position.x = this.x;
|
|
scope.object.position.y = this.y;
|
|
scope.object.position.z = this.z;
|
|
scope.object.lookAt(scope.target);
|
|
}
|
|
|
|
rotationTween = new TWEEN.Tween(scope.object.position)
|
|
.to(targetPosition, duration)
|
|
.easing(TWEEN.Easing.Quadratic.InOut)
|
|
.onUpdate(onUpdate)
|
|
.onComplete(function () {
|
|
isTweening = false;
|
|
callback();
|
|
})
|
|
.start();
|
|
}
|
|
|
|
this.rotateLeft = function (angle) {
|
|
|
|
if (angle === undefined) {
|
|
|
|
angle = getAutoRotationAngle();
|
|
|
|
}
|
|
|
|
thetaDelta -= angle;
|
|
|
|
};
|
|
|
|
this.rotateUp = function (angle) {
|
|
|
|
if (angle === undefined) {
|
|
|
|
angle = getAutoRotationAngle();
|
|
|
|
}
|
|
|
|
phiDelta -= angle;
|
|
|
|
};
|
|
|
|
// pass in distance in world space to move left
|
|
this.panLeft = function (distance) {
|
|
|
|
var te = this.object.matrix.elements;
|
|
|
|
// get X column of matrix
|
|
panOffset.set(te[0], te[1], te[2]);
|
|
panOffset.multiplyScalar(-distance);
|
|
|
|
pan.add(panOffset);
|
|
|
|
};
|
|
|
|
// pass in distance in world space to move up
|
|
this.panUp = function (distance) {
|
|
|
|
var te = this.object.matrix.elements;
|
|
|
|
// get Y column of matrix
|
|
panOffset.set(te[4], te[5], te[6]);
|
|
panOffset.multiplyScalar(distance);
|
|
|
|
pan.add(panOffset);
|
|
|
|
};
|
|
|
|
// pass in x,y of change desired in pixel space,
|
|
// right and down are positive
|
|
this.pan = function (deltaX, deltaY) {
|
|
|
|
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
|
|
|
|
if (scope.object.fov !== undefined) {
|
|
|
|
// perspective
|
|
var position = scope.object.position;
|
|
var offset = position.clone().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
|
|
scope.panLeft(2 * deltaX * targetDistance / element.clientHeight);
|
|
scope.panUp(2 * deltaY * targetDistance / element.clientHeight);
|
|
|
|
} else if (scope.object.top !== undefined) {
|
|
|
|
// orthographic
|
|
scope.panLeft(deltaX * (scope.object.right - scope.object.left) / element.clientWidth);
|
|
scope.panUp(deltaY * (scope.object.top - scope.object.bottom) / element.clientHeight);
|
|
|
|
} else {
|
|
|
|
// camera neither orthographic or perspective
|
|
// WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.
|
|
|
|
}
|
|
};
|
|
|
|
this.dollyIn = function (dollyScale) {
|
|
|
|
if (dollyScale === undefined) {
|
|
|
|
dollyScale = getZoomScale();
|
|
|
|
}
|
|
|
|
scale /= dollyScale;
|
|
|
|
};
|
|
|
|
this.dollyOut = function (dollyScale) {
|
|
|
|
if (dollyScale === undefined) {
|
|
|
|
dollyScale = getZoomScale();
|
|
|
|
}
|
|
|
|
scale *= dollyScale;
|
|
|
|
};
|
|
|
|
this.update = function () {
|
|
if (this.autoRotate === true) {
|
|
if (state === STATE.IDLE) {
|
|
var distance = cameraDistance * scale;
|
|
var position = new THREE.Vector3(
|
|
this.target.x + distance * Math.sin(currentAngle),
|
|
this.target.y + distance * Math.sin(cameraVerticalAngle),
|
|
this.target.z + distance * Math.cos(currentAngle)
|
|
);
|
|
this.object.position = position;
|
|
this.object.lookAt(this.target);
|
|
|
|
// had issue with using reference value to camera.position
|
|
if (scope.fullRotation === true) {
|
|
currentAngle = defaultAngle + angleIteration;
|
|
} else {
|
|
currentAngle = defaultAngle + maxAngle * Math.sin(angleIteration);
|
|
}
|
|
angleIteration += rotationDelta;
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
if ((lastActionTime !== undefined) && ($.now() >= (lastActionTime + idleTime))) {
|
|
lastActionTime = undefined;
|
|
scope.tweenToLastPosition();
|
|
}
|
|
|
|
var position = this.object.position;
|
|
|
|
offset.copy(position).sub(this.target);
|
|
|
|
// rotate offset to "y-axis-is-up" space
|
|
offset.applyQuaternion(quat);
|
|
|
|
// angle from z-axis around y-axis
|
|
|
|
var theta = Math.atan2(offset.x, offset.z);
|
|
|
|
// angle from y-axis
|
|
|
|
var phi = Math.atan2(Math.sqrt(offset.x * offset.x + offset.z * offset.z), offset.y);
|
|
|
|
/*if (this.autoRotate) {
|
|
|
|
this.rotateLeft(getAutoRotationAngle());
|
|
|
|
}*/
|
|
|
|
theta += thetaDelta;
|
|
phi += phiDelta;
|
|
|
|
// restrict phi to be between desired limits
|
|
phi = Math.max(this.minPolarAngle, Math.min(this.maxPolarAngle, phi));
|
|
|
|
// restrict phi to be betwee EPS and PI-EPS
|
|
phi = Math.max(EPS, Math.min(Math.PI - EPS, phi));
|
|
|
|
var radius = offset.length() * scale;
|
|
|
|
// restrict radius to be between desired limits
|
|
radius = Math.max(this.minDistance, Math.min(this.maxDistance, radius));
|
|
|
|
// move target to panned location
|
|
this.target.add(pan);
|
|
|
|
offset.x = radius * Math.sin(phi) * Math.sin(theta);
|
|
offset.y = radius * Math.cos(phi);
|
|
offset.z = radius * Math.sin(phi) * Math.cos(theta);
|
|
|
|
// rotate offset back to "camera-up-vector-is-up" space
|
|
offset.applyQuaternion(quatInverse);
|
|
|
|
position.copy(this.target).add(offset);
|
|
|
|
this.object.lookAt(this.target);
|
|
|
|
thetaDelta = 0;
|
|
phiDelta = 0;
|
|
scale = 1;
|
|
pan.set(0, 0, 0);
|
|
|
|
if (lastPosition.distanceToSquared(this.object.position) > EPS) {
|
|
|
|
this.dispatchEvent(changeEvent);
|
|
|
|
lastPosition.copy(this.object.position);
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
this.reset = function () {
|
|
|
|
state = STATE.NONE;
|
|
|
|
this.target.copy(this.target0);
|
|
this.object.position.copy(this.position0);
|
|
|
|
this.update();
|
|
|
|
};
|
|
|
|
function getZoomScale() {
|
|
|
|
return Math.pow(0.95, scope.zoomSpeed);
|
|
|
|
}
|
|
|
|
function onMouseDown(event) {
|
|
|
|
event.preventDefault();
|
|
|
|
if (event.button === 0) {
|
|
if (scope.noRotate === true) return;
|
|
|
|
actionBegun();
|
|
scale = 1;
|
|
scope.cancelAllTweens();
|
|
|
|
state = STATE.ROTATE;
|
|
|
|
rotateStart.set(event.clientX, event.clientY);
|
|
|
|
} else if (event.button === 1) {
|
|
if (scope.noZoom === true) return;
|
|
|
|
state = STATE.DOLLY;
|
|
|
|
dollyStart.set(event.clientX, event.clientY);
|
|
|
|
} else if (event.button === 2) {
|
|
if (scope.noPan === true) return;
|
|
|
|
state = STATE.PAN;
|
|
|
|
panStart.set(event.clientX, event.clientY);
|
|
|
|
}
|
|
|
|
scope.domElement.addEventListener('mousemove', onMouseMove, false);
|
|
scope.domElement.addEventListener('mouseup', onMouseUp, false);
|
|
scope.dispatchEvent(startEvent);
|
|
|
|
}
|
|
|
|
function onMouseMove(event) {
|
|
|
|
if (scope.enabled === false) return;
|
|
|
|
if (this.autoRotate === true && isTweening === true) {
|
|
isTweening = false;
|
|
}
|
|
|
|
event.preventDefault();
|
|
|
|
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
|
|
|
|
if (state === STATE.ROTATE) {
|
|
|
|
if (scope.noRotate === true) return;
|
|
|
|
rotateEnd.set(event.clientX, event.clientY);
|
|
rotateDelta.subVectors(rotateEnd, rotateStart);
|
|
|
|
// rotating across whole screen goes 360 degrees around
|
|
scope.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
|
|
//comment out this line to only allow horizontal rotation
|
|
scope.rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed);
|
|
|
|
rotateStart.copy(rotateEnd);
|
|
|
|
} else if (state === STATE.DOLLY) {
|
|
|
|
if (scope.noZoom === true) return;
|
|
|
|
dollyEnd.set(event.clientX, event.clientY);
|
|
dollyDelta.subVectors(dollyEnd, dollyStart);
|
|
|
|
if (dollyDelta.y > 0) {
|
|
|
|
scope.dollyIn();
|
|
|
|
} else {
|
|
|
|
scope.dollyOut();
|
|
|
|
}
|
|
|
|
dollyStart.copy(dollyEnd);
|
|
|
|
} else if (state === STATE.PAN) {
|
|
|
|
if (scope.noPan === true) return;
|
|
|
|
panEnd.set(event.clientX, event.clientY);
|
|
panDelta.subVectors(panEnd, panStart);
|
|
|
|
scope.pan(panDelta.x, panDelta.y);
|
|
|
|
panStart.copy(panEnd);
|
|
|
|
}
|
|
|
|
scope.update();
|
|
|
|
}
|
|
|
|
function onMouseLeave(event) {
|
|
//if the user drags out of the window we want to let go if they're holding down the mouse
|
|
if (state == STATE.ROTATE) {
|
|
//we need to cancel rotate
|
|
onMouseUp();
|
|
lastActionTime = undefined;
|
|
scope.tweenToLastPosition();
|
|
}
|
|
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
}
|
|
|
|
function onMouseUp( /* event */) {
|
|
|
|
if (scope.enabled === false) return;
|
|
|
|
actionEnded();
|
|
|
|
scope.domElement.removeEventListener('mousemove', onMouseMove, false);
|
|
scope.domElement.removeEventListener('mouseup', onMouseUp, false);
|
|
scope.dispatchEvent(endEvent);
|
|
state = STATE.NONE;
|
|
|
|
}
|
|
|
|
function onMouseWheel(event) {
|
|
|
|
if (scope.enabled === false || scope.noZoom === true) return;
|
|
|
|
if (state != STATE.ROTATE) {
|
|
actionEnded();
|
|
scope.cancelAllTweens();
|
|
}
|
|
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
|
|
var delta = 0;
|
|
|
|
if (event.wheelDelta !== undefined) { // WebKit / Opera / Explorer 9
|
|
|
|
delta = event.wheelDelta;
|
|
|
|
} else if (event.detail !== undefined) { // Firefox
|
|
|
|
delta = - event.detail;
|
|
|
|
}
|
|
|
|
if (delta > 0) {
|
|
|
|
scope.dollyOut();
|
|
|
|
} else {
|
|
|
|
scope.dollyIn();
|
|
|
|
}
|
|
|
|
scope.update();
|
|
scope.dispatchEvent(startEvent);
|
|
scope.dispatchEvent(endEvent);
|
|
|
|
}
|
|
|
|
function onKeyDown(event) {
|
|
|
|
if (scope.enabled === false || scope.noKeys === true || scope.noPan === true) return;
|
|
|
|
switch (event.keyCode) {
|
|
|
|
case scope.keys.UP:
|
|
scope.pan(0, scope.keyPanSpeed);
|
|
scope.update();
|
|
break;
|
|
|
|
case scope.keys.BOTTOM:
|
|
scope.pan(0, -scope.keyPanSpeed);
|
|
scope.update();
|
|
break;
|
|
|
|
case scope.keys.LEFT:
|
|
scope.pan(scope.keyPanSpeed, 0);
|
|
scope.update();
|
|
break;
|
|
|
|
case scope.keys.RIGHT:
|
|
scope.pan(-scope.keyPanSpeed, 0);
|
|
scope.update();
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function touchstart(event) {
|
|
|
|
if (scope.enabled === false) return;
|
|
|
|
switch (event.touches.length) {
|
|
|
|
case 1: // one-fingered touch: rotate
|
|
|
|
if (scope.noRotate === true) return;
|
|
|
|
state = STATE.TOUCH_ROTATE;
|
|
|
|
rotateStart.set(event.touches[0].pageX, event.touches[0].pageY);
|
|
break;
|
|
|
|
case 2: // two-fingered touch: dolly
|
|
|
|
if (scope.noZoom === true) return;
|
|
|
|
state = STATE.TOUCH_DOLLY;
|
|
|
|
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);
|
|
break;
|
|
|
|
case 3: // three-fingered touch: pan
|
|
|
|
if (scope.noPan === true) return;
|
|
|
|
state = STATE.TOUCH_PAN;
|
|
|
|
panStart.set(event.touches[0].pageX, event.touches[0].pageY);
|
|
break;
|
|
|
|
default:
|
|
|
|
state = STATE.NONE;
|
|
|
|
}
|
|
|
|
scope.dispatchEvent(startEvent);
|
|
|
|
}
|
|
|
|
function touchmove(event) {
|
|
|
|
if (scope.enabled === false) return;
|
|
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
|
|
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
|
|
|
|
switch (event.touches.length) {
|
|
|
|
case 1: // one-fingered touch: rotate
|
|
|
|
if (scope.noRotate === true) return;
|
|
if (state !== STATE.TOUCH_ROTATE) return;
|
|
|
|
rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY);
|
|
rotateDelta.subVectors(rotateEnd, rotateStart);
|
|
|
|
// rotating across whole screen goes 360 degrees around
|
|
scope.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
|
|
scope.rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed);
|
|
|
|
rotateStart.copy(rotateEnd);
|
|
|
|
scope.update();
|
|
break;
|
|
|
|
case 2: // two-fingered touch: dolly
|
|
|
|
if (scope.noZoom === true) return;
|
|
if (state !== STATE.TOUCH_DOLLY) return;
|
|
|
|
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) {
|
|
|
|
scope.dollyOut();
|
|
|
|
} else {
|
|
|
|
scope.dollyIn();
|
|
|
|
}
|
|
|
|
dollyStart.copy(dollyEnd);
|
|
|
|
scope.update();
|
|
break;
|
|
|
|
case 3: // three-fingered touch: pan
|
|
|
|
if (scope.noPan === true) return;
|
|
if (state !== STATE.TOUCH_PAN) return;
|
|
|
|
panEnd.set(event.touches[0].pageX, event.touches[0].pageY);
|
|
panDelta.subVectors(panEnd, panStart);
|
|
|
|
scope.pan(panDelta.x, panDelta.y);
|
|
|
|
panStart.copy(panEnd);
|
|
|
|
scope.update();
|
|
break;
|
|
|
|
default:
|
|
|
|
state = STATE.NONE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function touchend( /* event */) {
|
|
|
|
if (scope.enabled === false) return;
|
|
|
|
scope.dispatchEvent(endEvent);
|
|
state = STATE.NONE;
|
|
|
|
}
|
|
|
|
this.domElement.addEventListener('mouseleave', onMouseLeave, false);
|
|
this.domElement.addEventListener('contextmenu', function (event) { event.preventDefault(); }, false);
|
|
this.domElement.addEventListener('mousedown', onMouseDown, false);
|
|
this.domElement.addEventListener('mousewheel', onMouseWheel, false);
|
|
this.domElement.addEventListener('DOMMouseScroll', onMouseWheel, false); // firefox
|
|
|
|
this.domElement.addEventListener('touchstart', touchstart, false);
|
|
this.domElement.addEventListener('touchend', touchend, false);
|
|
this.domElement.addEventListener('touchmove', touchmove, false);
|
|
|
|
window.addEventListener('keydown', onKeyDown, false);
|
|
|
|
// force an update at start
|
|
this.update();
|
|
|
|
};
|
|
|
|
THREE.OrbitControls.prototype = Object.create(THREE.EventDispatcher.prototype); |