mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-11-26 15:34:57 +01:00
94 lines
2.6 KiB
JavaScript
Executable File
94 lines
2.6 KiB
JavaScript
Executable File
/**
|
|
* @author richt / http://richt.me
|
|
* @author WestLangley / http://github.com/WestLangley
|
|
*
|
|
* W3C Device Orientation control (http://w3c.github.io/deviceorientation/spec-source-orientation.html)
|
|
*/
|
|
|
|
THREE.DeviceOrientationControls = function ( object ) {
|
|
|
|
var scope = this;
|
|
|
|
this.object = object;
|
|
this.object.rotation.reorder( "YXZ" );
|
|
|
|
this.enabled = true;
|
|
|
|
this.deviceOrientation = {};
|
|
this.screenOrientation = 0;
|
|
|
|
var onDeviceOrientationChangeEvent = function ( event ) {
|
|
|
|
scope.deviceOrientation = event;
|
|
|
|
};
|
|
|
|
var onScreenOrientationChangeEvent = function () {
|
|
|
|
scope.screenOrientation = window.orientation || 0;
|
|
|
|
};
|
|
|
|
// The angles alpha, beta and gamma form a set of intrinsic Tait-Bryan angles of type Z-X'-Y''
|
|
|
|
var setObjectQuaternion = function () {
|
|
|
|
var zee = new THREE.Vector3( 0, 0, 1 );
|
|
|
|
var euler = new THREE.Euler();
|
|
|
|
var q0 = new THREE.Quaternion();
|
|
|
|
var q1 = new THREE.Quaternion( - Math.sqrt( 0.5 ), 0, 0, Math.sqrt( 0.5 ) ); // - PI/2 around the x-axis
|
|
|
|
return function ( quaternion, alpha, beta, gamma, orient ) {
|
|
|
|
euler.set( beta, alpha, - gamma, 'YXZ' ); // 'ZXY' for the device, but 'YXZ' for us
|
|
|
|
quaternion.setFromEuler( euler ); // orient the device
|
|
|
|
quaternion.multiply( q1 ); // camera looks out the back of the device, not the top
|
|
|
|
quaternion.multiply( q0.setFromAxisAngle( zee, - orient ) ); // adjust for screen orientation
|
|
|
|
}
|
|
|
|
}();
|
|
|
|
this.connect = function() {
|
|
|
|
onScreenOrientationChangeEvent(); // run once on load
|
|
|
|
window.addEventListener( 'orientationchange', onScreenOrientationChangeEvent, false );
|
|
window.addEventListener( 'deviceorientation', onDeviceOrientationChangeEvent, false );
|
|
|
|
scope.enabled = true;
|
|
|
|
};
|
|
|
|
this.disconnect = function() {
|
|
|
|
window.removeEventListener( 'orientationchange', onScreenOrientationChangeEvent, false );
|
|
window.removeEventListener( 'deviceorientation', onDeviceOrientationChangeEvent, false );
|
|
|
|
scope.enabled = false;
|
|
|
|
};
|
|
|
|
this.update = function () {
|
|
|
|
if ( scope.enabled === false ) return;
|
|
|
|
var alpha = scope.deviceOrientation.alpha ? THREE.Math.degToRad( scope.deviceOrientation.alpha ) : 0; // Z
|
|
var beta = scope.deviceOrientation.beta ? THREE.Math.degToRad( scope.deviceOrientation.beta ) : 0; // X'
|
|
var gamma = scope.deviceOrientation.gamma ? THREE.Math.degToRad( scope.deviceOrientation.gamma ) : 0; // Y''
|
|
var orient = scope.screenOrientation ? THREE.Math.degToRad( scope.screenOrientation ) : 0; // O
|
|
|
|
setObjectQuaternion( scope.object.quaternion, alpha, beta, gamma, orient );
|
|
|
|
};
|
|
|
|
this.connect();
|
|
|
|
};
|