在我的程序中，越遠越放大，可以慢慢平移。所以，我想根據縮放級別提高平移速度。我嘗試過.panSpeed，但這不起作用，並且.panSpeed似乎不再存在於OrbitControls.js中。有我可以使用的另一個功能嗎？Three.js OrbitControls正交平移
這裏是我看着文檔three.js所OrbitControls： https://github.com/mrdoob/three.js/blob/master/examples/js/controls/OrbitControls.js
如果你的文檔中查找你剛剛掛youll'find
// Set to false to disable panning
this.enablePan = true;
this.keyPanSpeed = 7.0; // pixels moved per arrow key push
也許.keyPanSpeed是你在做什麼尋找。
更新1： 在您有下列函數來處理鍋裏OrbitControls.js：
function pan(deltaX, deltaY) {
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
constraint.pan(deltaX, deltaY, element.clientWidth, element.clientHeight);
}
所以，舉例來說，如果你乘DELTAX和移動deltaY 10你會看到鍋裏去10時間更快：
constraint.pan(deltaX * 10, deltaY * 10, element.clientWidth, element.clientHeight);
嘗試插入基於放大的計算，它應該工作。
UPDATE 2： 其實我使用的是舊版本的OrbitControls，它與目前的稍有不同。它是：
/**
* @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 */
(function() {
function OrbitConstraint (object) {
this.object = object;
// "target" sets the location of focus, where the object orbits around
// and where it pans with respect to.
this.target = new THREE.Vector3();
// Limits to how far you can dolly in and out (PerspectiveCamera only)
this.minDistance = 0;
this.maxDistance = Infinity;
// Limits to how far you can zoom in and out (OrthographicCamera only)
this.minZoom = 0;
this.maxZoom = Infinity;
// How far you can orbit vertically, upper and lower limits.
// Range is 0 to Math.PI radians.
this.minPolarAngle = 0; // radians
this.maxPolarAngle = Math.PI; // radians
// How far you can orbit horizontally, upper and lower limits.
// If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ].
this.minAzimuthAngle = - Infinity; // radians
this.maxAzimuthAngle = Infinity; // radians
// Set to true to enable damping (inertia)
// If damping is enabled, you must call controls.update() in your animation loop
this.enableDamping = false;
this.dampingFactor = 0.25;
////////////
// internals
var scope = this;
var EPS = 0.000001;
// Current position in spherical coordinate system.
var theta;
var phi;
// Pending changes
var phiDelta = 0;
var thetaDelta = 0;
var scale = 1;
var panOffset = new THREE.Vector3();
var zoomChanged = false;
// API
this.getPolarAngle = function() {
return phi;
};
this.getAzimuthalAngle = function() {
return theta;
};
this.rotateLeft = function (angle) {
thetaDelta -= angle;
};
this.rotateUp = function (angle) {
phiDelta -= angle;
};
// pass in distance in world space to move left
this.panLeft = function() {
var v = new THREE.Vector3();
return function panLeft (distance) {
var te = this.object.matrix.elements;
// get X column of matrix
v.set(te[ 0 ], te[ 1 ], te[ 2 ]);
v.multiplyScalar(- distance);
panOffset.add(v);
};
}();
// pass in distance in world space to move up
this.panUp = function() {
var v = new THREE.Vector3();
return function panUp (distance) {
var te = this.object.matrix.elements;
// get Y column of matrix
v.set(te[ 4 ], te[ 5 ], te[ 6 ]);
v.multiplyScalar(distance);
panOffset.add(v);
};
}();
// pass in x,y of change desired in pixel space,
// right and down are positive
this.pan = function (deltaX, deltaY, screenWidth, screenHeight) {
if (scope.object instanceof THREE.PerspectiveCamera) {
// 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/screenHeight);
scope.panUp(2 * deltaY * targetDistance/screenHeight);
} else if (scope.object instanceof THREE.OrthographicCamera) {
// orthographic
scope.panLeft(deltaX * (scope.object.right - scope.object.left)/screenWidth);
scope.panUp(deltaY * (scope.object.top - scope.object.bottom)/screenHeight);
} else {
// camera neither orthographic or perspective
console.warn('WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.');
}
};
this.dollyIn = function (dollyScale) {
if (scope.object instanceof THREE.PerspectiveCamera) {
scale /= dollyScale;
} else if (scope.object instanceof THREE.OrthographicCamera) {
scope.object.zoom = Math.max(this.minZoom, Math.min(this.maxZoom, this.object.zoom * dollyScale));
scope.object.updateProjectionMatrix();
zoomChanged = true;
} else {
console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');
}
};
this.dollyOut = function (dollyScale) {
if (scope.object instanceof THREE.PerspectiveCamera) {
scale *= dollyScale;
} else if (scope.object instanceof THREE.OrthographicCamera) {
scope.object.zoom = Math.max(this.minZoom, Math.min(this.maxZoom, this.object.zoom/dollyScale));
scope.object.updateProjectionMatrix();
zoomChanged = true;
} else {
console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');
}
};
this.update = function() {
var offset = new THREE.Vector3();
// so camera.up is the orbit axis
var quat = new THREE.Quaternion().setFromUnitVectors(object.up, new THREE.Vector3(0, 1, 0));
var quatInverse = quat.clone().inverse();
var lastPosition = new THREE.Vector3();
var lastQuaternion = new THREE.Quaternion();
return function() {
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
theta = Math.atan2(offset.x, offset.z);
// angle from y-axis
phi = Math.atan2(Math.sqrt(offset.x * offset.x + offset.z * offset.z), offset.y);
theta += thetaDelta;
phi += phiDelta;
// restrict theta to be between desired limits
theta = Math.max(this.minAzimuthAngle, Math.min(this.maxAzimuthAngle, theta));
// 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(panOffset);
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);
if (this.enableDamping === true) {
thetaDelta *= (1 - this.dampingFactor);
phiDelta *= (1 - this.dampingFactor);
} else {
thetaDelta = 0;
phiDelta = 0;
}
scale = 1;
panOffset.set(0, 0, 0);
// update condition is:
// min(camera displacement, camera rotation in radians)^2 > EPS
// using small-angle approximation cos(x/2) = 1 - x^2/8
if (zoomChanged ||
lastPosition.distanceToSquared(this.object.position) > EPS ||
8 * (1 - lastQuaternion.dot(this.object.quaternion)) > EPS) {
lastPosition.copy(this.object.position);
lastQuaternion.copy(this.object.quaternion);
zoomChanged = false;
return true;
}
return false;
};
}();
};
// 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
THREE.OrbitControls = function (object, domElement) {
var constraint = new OrbitConstraint(object);
this.domElement = (domElement !== undefined) ? domElement : document;
// API
Object.defineProperty(this, 'constraint', {
get: function() {
return constraint;
}
});
this.getPolarAngle = function() {
return constraint.getPolarAngle();
};
this.getAzimuthalAngle = function() {
return constraint.getAzimuthalAngle();
};
// Set to false to disable this control
this.enabled = true;
// 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.
// Set to false to disable zooming
this.enableZoom = true;
this.zoomSpeed = 1.0;
// Set to false to disable rotating
this.enableRotate = true;
this.rotateSpeed = 1.0;
// Set to false to disable panning
this.enablePan = true;
this.keyPanSpeed = 7.0; // pixels moved per arrow key push
// Set to true to automatically rotate around the target
// If auto-rotate is enabled, you must call controls.update() in your animation loop
this.autoRotate = false;
this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60
// Set to false to disable use of the keys
this.enableKeys = true;
// The four arrow keys
this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 };
// Mouse buttons
this.mouseButtons = { ORBIT: THREE.MOUSE.LEFT, ZOOM: THREE.MOUSE.MIDDLE, PAN: THREE.MOUSE.RIGHT };
////////////
// internals
var scope = this;
var rotateStart = new THREE.Vector2();
var rotateEnd = new THREE.Vector2();
var rotateDelta = new THREE.Vector2();
var panStart = new THREE.Vector2();
var panEnd = new THREE.Vector2();
var panDelta = new THREE.Vector2();
var dollyStart = new THREE.Vector2();
var dollyEnd = new THREE.Vector2();
var dollyDelta = new THREE.Vector2();
var STATE = { NONE : - 1, ROTATE : 0, DOLLY : 1, PAN : 2, TOUCH_ROTATE : 3, TOUCH_DOLLY : 4, TOUCH_PAN : 5 };
var state = STATE.NONE;
// for reset
this.target0 = this.target.clone();
this.position0 = this.object.position.clone();
this.zoom0 = this.object.zoom;
// events
var changeEvent = { type: 'change' };
var startEvent = { type: 'start' };
var endEvent = { type: 'end' };
// pass in x,y of change desired in pixel space,
// right and down are positive
function pan(deltaX, deltaY) {
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
constraint.pan(deltaX, deltaY, element.clientWidth, element.clientHeight);
}
this.update = function() {
if (this.autoRotate && state === STATE.NONE) {
constraint.rotateLeft(getAutoRotationAngle());
}
if (constraint.update() === true) {
this.dispatchEvent(changeEvent);
}
};
this.reset = function() {
state = STATE.NONE;
this.target.copy(this.target0);
this.object.position.copy(this.position0);
this.object.zoom = this.zoom0;
this.object.updateProjectionMatrix();
this.dispatchEvent(changeEvent);
this.update();
};
function getAutoRotationAngle() {
return 2 * Math.PI/60/60 * scope.autoRotateSpeed;
}
function getZoomScale() {
return Math.pow(0.95, scope.zoomSpeed);
}
function onMouseDown(event) {
if (scope.enabled === false) return;
event.preventDefault();
if (event.button === scope.mouseButtons.ORBIT) {
if (scope.enableRotate === false) return;
state = STATE.ROTATE;
rotateStart.set(event.clientX, event.clientY);
} else if (event.button === scope.mouseButtons.ZOOM) {
if (scope.enableZoom === false) return;
state = STATE.DOLLY;
dollyStart.set(event.clientX, event.clientY);
} else if (event.button === scope.mouseButtons.PAN) {
if (scope.enablePan === false) return;
state = STATE.PAN;
panStart.set(event.clientX, event.clientY);
}
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();
var element = scope.domElement === document ? scope.domElement.body : scope.domElement;
if (state === STATE.ROTATE) {
if (scope.enableRotate === false) return;
rotateEnd.set(event.clientX, event.clientY);
rotateDelta.subVectors(rotateEnd, rotateStart);
// rotating across whole screen goes 360 degrees around
constraint.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
constraint.rotateUp(2 * Math.PI * rotateDelta.y/element.clientHeight * scope.rotateSpeed);
rotateStart.copy(rotateEnd);
} else if (state === STATE.DOLLY) {
if (scope.enableZoom === false) return;
dollyEnd.set(event.clientX, event.clientY);
dollyDelta.subVectors(dollyEnd, dollyStart);
if (dollyDelta.y > 0) {
constraint.dollyIn(getZoomScale());
} else if (dollyDelta.y < 0) {
constraint.dollyOut(getZoomScale());
}
dollyStart.copy(dollyEnd);
} else if (state === STATE.PAN) {
if (scope.enablePan === false) return;
panEnd.set(event.clientX, event.clientY);
panDelta.subVectors(panEnd, panStart);
pan(panDelta.x, panDelta.y);
panStart.copy(panEnd);
}
if (state !== STATE.NONE) scope.update();
}
function onMouseUp(/* event */) {
if (scope.enabled === false) return;
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) return;
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) {
constraint.dollyOut(getZoomScale());
} else if (delta < 0) {
constraint.dollyIn(getZoomScale());
}
scope.update();
scope.dispatchEvent(startEvent);
scope.dispatchEvent(endEvent);
}
function onKeyDown(event) {
if (scope.enabled === false || scope.enableKeys === false || scope.enablePan === false) return;
switch (event.keyCode) {
case scope.keys.UP:
pan(0, scope.keyPanSpeed);
scope.update();
break;
case scope.keys.BOTTOM:
pan(0, - scope.keyPanSpeed);
scope.update();
break;
case scope.keys.LEFT:
pan(scope.keyPanSpeed, 0);
scope.update();
break;
case scope.keys.RIGHT:
pan(- scope.keyPanSpeed, 0);
scope.update();
break;
}
}
function touchstart(event) {
if (scope.enabled === false) return;
switch (event.touches.length) {
case 1: // one-fingered touch: rotate
if (scope.enableRotate === false) return;
state = STATE.TOUCH_ROTATE;
rotateStart.set(event.touches[ 0 ].pageX, event.touches[ 0 ].pageY);
break;
case 2: // two-fingered touch: dolly
if (scope.enableZoom === false) 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.enablePan === false) return;
state = STATE.TOUCH_PAN;
panStart.set(event.touches[ 0 ].pageX, event.touches[ 0 ].pageY);
break;
default:
state = STATE.NONE;
}
if (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.enableRotate === false) 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
constraint.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
constraint.rotateUp(2 * Math.PI * rotateDelta.y/element.clientHeight * scope.rotateSpeed);
rotateStart.copy(rotateEnd);
scope.update();
break;
case 2: // two-fingered touch: dolly
if (scope.enableZoom === false) 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) {
constraint.dollyOut(getZoomScale());
} else if (dollyDelta.y < 0) {
constraint.dollyIn(getZoomScale());
}
dollyStart.copy(dollyEnd);
scope.update();
break;
case 3: // three-fingered touch: pan
if (scope.enablePan === false) return;
if (state !== STATE.TOUCH_PAN) return;
panEnd.set(event.touches[ 0 ].pageX, event.touches[ 0 ].pageY);
panDelta.subVectors(panEnd, panStart);
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;
}
function contextmenu(event) {
event.preventDefault();
}
this.dispose = function() {
this.domElement.removeEventListener('contextmenu', contextmenu, false);
this.domElement.removeEventListener('mousedown', onMouseDown, false);
this.domElement.removeEventListener('mousewheel', onMouseWheel, false);
this.domElement.removeEventListener('MozMousePixelScroll', onMouseWheel, false); // firefox
this.domElement.removeEventListener('touchstart', touchstart, false);
this.domElement.removeEventListener('touchend', touchend, false);
this.domElement.removeEventListener('touchmove', touchmove, false);
document.removeEventListener('mousemove', onMouseMove, false);
document.removeEventListener('mouseup', onMouseUp, false);
window.removeEventListener('keydown', onKeyDown, false);
}
this.domElement.addEventListener('contextmenu', contextmenu, false);
this.domElement.addEventListener('mousedown', onMouseDown, false);
this.domElement.addEventListener('mousewheel', onMouseWheel, false);
this.domElement.addEventListener('MozMousePixelScroll', 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);
THREE.OrbitControls.prototype.constructor = THREE.OrbitControls;
Object.defineProperties(THREE.OrbitControls.prototype, {
object: {
get: function() {
return this.constraint.object;
}
},
target: {
get: function() {
return this.constraint.target;
},
set: function (value) {
console.warn('THREE.OrbitControls: target is now immutable. Use target.set() instead.');
this.constraint.target.copy(value);
}
},
minDistance : {
get: function() {
return this.constraint.minDistance;
},
set: function (value) {
this.constraint.minDistance = value;
}
},
maxDistance : {
get: function() {
return this.constraint.maxDistance;
},
set: function (value) {
this.constraint.maxDistance = value;
}
},
minZoom : {
get: function() {
return this.constraint.minZoom;
},
set: function (value) {
this.constraint.minZoom = value;
}
},
maxZoom : {
get: function() {
return this.constraint.maxZoom;
},
set: function (value) {
this.constraint.maxZoom = value;
}
},
minPolarAngle : {
get: function() {
return this.constraint.minPolarAngle;
},
set: function (value) {
this.constraint.minPolarAngle = value;
}
},
maxPolarAngle : {
get: function() {
return this.constraint.maxPolarAngle;
},
set: function (value) {
this.constraint.maxPolarAngle = value;
}
},
minAzimuthAngle : {
get: function() {
return this.constraint.minAzimuthAngle;
},
set: function (value) {
this.constraint.minAzimuthAngle = value;
}
},
maxAzimuthAngle : {
get: function() {
return this.constraint.maxAzimuthAngle;
},
set: function (value) {
this.constraint.maxAzimuthAngle = value;
}
},
enableDamping : {
get: function() {
return this.constraint.enableDamping;
},
set: function (value) {
this.constraint.enableDamping = value;
}
},
dampingFactor : {
get: function() {
return this.constraint.dampingFactor;
},
set: function (value) {
this.constraint.dampingFactor = value;
}
},
// backward compatibility
noZoom: {
get: function() {
console.warn('THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.');
return ! this.enableZoom;
},
set: function (value) {
console.warn('THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.');
this.enableZoom = ! value;
}
},
noRotate: {
get: function() {
console.warn('THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.');
return ! this.enableRotate;
},
set: function (value) {
console.warn('THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.');
this.enableRotate = ! value;
}
},
noPan: {
get: function() {
console.warn('THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.');
return ! this.enablePan;
},
set: function (value) {
console.warn('THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.');
this.enablePan = ! value;
}
},
noKeys: {
get: function() {
console.warn('THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.');
return ! this.enableKeys;
},
set: function (value) {
console.warn('THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.');
this.enableKeys = ! value;
}
},
staticMoving : {
get: function() {
console.warn('THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.');
return ! this.constraint.enableDamping;
},
set: function (value) {
console.warn('THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.');
this.constraint.enableDamping = ! value;
}
},
dynamicDampingFactor : {
get: function() {
console.warn('THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.');
return this.constraint.dampingFactor;
},
set: function (value) {
console.warn('THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.');
this.constraint.dampingFactor = value;
}
}
});
}());
此問題已在three.js r.75中修復。見https://github.com/mrdoob/three.js/issues/8340 – WestLangley
謝謝WestLangley！ – Emily