matrixIn: matrix to be copied
matrixOut: copy of matrixIn (after the call)
matrixIn and matrixOut are pointers to 12 double values (the last row of the 4x4 matrix (0,0,0,1) is not needed)
The x-axis of the orientation component is (matrix[0],matrix[4],matrix[8])
The y-axis of the orientation component is (matrix[1],matrix[5],matrix[9])
The z-axis of the orientation component is (matrix[2],matrix[6],matrix[10])
The position component is (matrix[3],matrix[7],matrix[11])
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