text: /**
   * @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;
  
        }
  
      }
  
    } );
  
  }() );