if(m_ArgsInfo.initMatrix_given) {
itk::Matrix<double, Dimension+1 , Dimension+1> matHom = ReadMatrix<Dimension>(m_ArgsInfo.initMatrix_arg);
typename MatrixXType::MatrixType matrix = GetRotationalPartMatrix(matHom);
if(m_ArgsInfo.initMatrix_given) {
itk::Matrix<double, Dimension+1 , Dimension+1> matHom = ReadMatrix<Dimension>(m_ArgsInfo.initMatrix_arg);
typename MatrixXType::MatrixType matrix = GetRotationalPartMatrix(matHom);