a;this.updateQuaternion();returnthis},setEulerFromRotationMatrix:function(a,b){console.warn("DEPRECATED: Rotation's .setEulerFromRotationMatrix() has been renamed to .setFromRotationMatrix().");returnthis.setFromRotationMatrix(a,b)},setFromRotationMatrix:function(a,b){this.euler.setFromRotationMatrix(a,b);this.updateQuaternion();returnthis},setFromQuaternion:function(a,b){this.euler.setFromQuaternion(a,b);this.quaternion.copy(a);returnthis},copy:function(a){this.euler.copy(a.euler);this.quaternion.copy(a.quaternion);