Doodle3D-Slicer/three.js-master/examples/js/controls/MouseControls.js
2017-06-22 13:21:07 +02:00

56 lines
1.3 KiB
JavaScript
Executable File

/**
* @author dmarcos / http://github.com/dmarcos
*
* This controls allow to change the orientation of the camera using the mouse
*/
THREE.MouseControls = function ( object ) {
var scope = this;
var PI_2 = Math.PI / 2;
var mouseQuat = {
x: new THREE.Quaternion(),
y: new THREE.Quaternion()
};
var object = object;
var xVector = new THREE.Vector3( 1, 0, 0 );
var yVector = new THREE.Vector3( 0, 1, 0 );
var onMouseMove = function ( event ) {
if ( scope.enabled === false ) return;
var orientation = scope.orientation;
var movementX = event.movementX || event.mozMovementX || event.webkitMovementX || 0;
var movementY = event.movementY || event.mozMovementY || event.webkitMovementY || 0;
orientation.y += movementX * 0.0025;
orientation.x += movementY * 0.0025;
orientation.x = Math.max( - PI_2, Math.min( PI_2, orientation.x ) );
};
this.enabled = true;
this.orientation = {
x: 0,
y: 0,
};
this.update = function() {
if ( this.enabled === false ) return;
mouseQuat.x.setFromAxisAngle( xVector, this.orientation.x );
mouseQuat.y.setFromAxisAngle( yVector, this.orientation.y );
object.quaternion.copy(mouseQuat.y).multiply(mouseQuat.x)
return;
};
document.addEventListener( 'mousemove', onMouseMove, false );
};