copyPosition( m ) {

		const te = this.elements, me = m.elements;

		te[ 12 ] = me[ 12 ];
		te[ 13 ] = me[ 13 ];
		te[ 14 ] = me[ 14 ];

		return this;

	}
Copies the translation component of the given matrix
into this matrix's translation component.

@param {Matrix4} m - The matrix to copy the translation component.
@return {Matrix4} A reference to this matrix.