353 lines
5.4 KiB
JavaScript
353 lines
5.4 KiB
JavaScript
import { Quaternion } from './Quaternion.js';
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import { Vector3 } from './Vector3.js';
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import { Matrix4 } from './Matrix4.js';
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import { _Math } from './Math.js';
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/**
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* @author mrdoob / http://mrdoob.com/
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* @author WestLangley / http://github.com/WestLangley
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* @author bhouston / http://clara.io
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*/
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function Euler( x, y, z, order ) {
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this._x = x || 0;
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this._y = y || 0;
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this._z = z || 0;
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this._order = order || Euler.DefaultOrder;
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}
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Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];
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Euler.DefaultOrder = 'XYZ';
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Object.defineProperties( Euler.prototype, {
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x: {
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get: function () {
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return this._x;
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},
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set: function ( value ) {
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this._x = value;
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this.onChangeCallback();
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}
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},
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y: {
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get: function () {
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return this._y;
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},
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set: function ( value ) {
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this._y = value;
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this.onChangeCallback();
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}
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},
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z: {
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get: function () {
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return this._z;
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},
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set: function ( value ) {
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this._z = value;
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this.onChangeCallback();
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}
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},
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order: {
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get: function () {
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return this._order;
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},
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set: function ( value ) {
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this._order = value;
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this.onChangeCallback();
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}
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}
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} );
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Object.assign( Euler.prototype, {
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isEuler: true,
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set: function ( x, y, z, order ) {
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this._x = x;
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this._y = y;
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this._z = z;
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this._order = order || this._order;
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this.onChangeCallback();
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return this;
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},
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clone: function () {
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return new this.constructor( this._x, this._y, this._z, this._order );
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},
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copy: function ( euler ) {
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this._x = euler._x;
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this._y = euler._y;
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this._z = euler._z;
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this._order = euler._order;
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this.onChangeCallback();
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return this;
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},
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setFromRotationMatrix: function ( m, order, update ) {
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var clamp = _Math.clamp;
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// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
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var te = m.elements;
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var m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
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var m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
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var m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];
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order = order || this._order;
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if ( order === 'XYZ' ) {
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this._y = Math.asin( clamp( m13, - 1, 1 ) );
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if ( Math.abs( m13 ) < 0.99999 ) {
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this._x = Math.atan2( - m23, m33 );
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this._z = Math.atan2( - m12, m11 );
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} else {
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this._x = Math.atan2( m32, m22 );
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this._z = 0;
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}
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} else if ( order === 'YXZ' ) {
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this._x = Math.asin( - clamp( m23, - 1, 1 ) );
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if ( Math.abs( m23 ) < 0.99999 ) {
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this._y = Math.atan2( m13, m33 );
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this._z = Math.atan2( m21, m22 );
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} else {
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this._y = Math.atan2( - m31, m11 );
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this._z = 0;
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}
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} else if ( order === 'ZXY' ) {
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this._x = Math.asin( clamp( m32, - 1, 1 ) );
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if ( Math.abs( m32 ) < 0.99999 ) {
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this._y = Math.atan2( - m31, m33 );
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this._z = Math.atan2( - m12, m22 );
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} else {
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this._y = 0;
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this._z = Math.atan2( m21, m11 );
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}
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} else if ( order === 'ZYX' ) {
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this._y = Math.asin( - clamp( m31, - 1, 1 ) );
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if ( Math.abs( m31 ) < 0.99999 ) {
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this._x = Math.atan2( m32, m33 );
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this._z = Math.atan2( m21, m11 );
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} else {
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this._x = 0;
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this._z = Math.atan2( - m12, m22 );
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}
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} else if ( order === 'YZX' ) {
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this._z = Math.asin( clamp( m21, - 1, 1 ) );
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if ( Math.abs( m21 ) < 0.99999 ) {
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this._x = Math.atan2( - m23, m22 );
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this._y = Math.atan2( - m31, m11 );
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} else {
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this._x = 0;
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this._y = Math.atan2( m13, m33 );
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}
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} else if ( order === 'XZY' ) {
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this._z = Math.asin( - clamp( m12, - 1, 1 ) );
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if ( Math.abs( m12 ) < 0.99999 ) {
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this._x = Math.atan2( m32, m22 );
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this._y = Math.atan2( m13, m11 );
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} else {
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this._x = Math.atan2( - m23, m33 );
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this._y = 0;
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}
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} else {
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console.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order );
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}
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this._order = order;
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if ( update !== false ) this.onChangeCallback();
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return this;
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},
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setFromQuaternion: function () {
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var matrix = new Matrix4();
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return function setFromQuaternion( q, order, update ) {
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matrix.makeRotationFromQuaternion( q );
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return this.setFromRotationMatrix( matrix, order, update );
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};
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}(),
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setFromVector3: function ( v, order ) {
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return this.set( v.x, v.y, v.z, order || this._order );
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},
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reorder: function () {
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// WARNING: this discards revolution information -bhouston
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var q = new Quaternion();
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return function reorder( newOrder ) {
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q.setFromEuler( this );
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return this.setFromQuaternion( q, newOrder );
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};
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}(),
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equals: function ( euler ) {
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return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );
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},
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fromArray: function ( array ) {
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this._x = array[ 0 ];
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this._y = array[ 1 ];
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this._z = array[ 2 ];
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if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];
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this.onChangeCallback();
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return this;
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},
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toArray: function ( array, offset ) {
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if ( array === undefined ) array = [];
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if ( offset === undefined ) offset = 0;
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array[ offset ] = this._x;
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array[ offset + 1 ] = this._y;
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array[ offset + 2 ] = this._z;
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array[ offset + 3 ] = this._order;
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return array;
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},
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toVector3: function ( optionalResult ) {
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if ( optionalResult ) {
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return optionalResult.set( this._x, this._y, this._z );
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} else {
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return new Vector3( this._x, this._y, this._z );
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}
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},
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onChange: function ( callback ) {
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this.onChangeCallback = callback;
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return this;
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},
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onChangeCallback: function () {}
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} );
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export { Euler };
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