SymPermutation.cc

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#include "casm/symmetry/SymPermutation.hh"
 
#include "casm/container/Permutation.hh"
#include "casm/container/io/PermutationIO.hh"
 
namespace CASM {
 
double SymPermutation::character() const {
  int n_fix(0);
  for (Index i = 0; i < m_permute.size(); i++) {
    n_fix += int(i == m_permute[i]);
  }
  return n_fix;
}
 
//*******************************************************************************************
 
// Makes permutation matrix from m_permute
// Permute matrix P reorders elements of a column vector v via
// v' = P*v
// Therefore, we loop over m_permute and assign ones to the
// appropriate row/column
 
void SymPermutation::_calc_mat() const {
  m_mat.resize(m_permute.size(), m_permute.size());
  m_mat.setZero();
  for (Index i = 0; i < m_permute.size(); i++) m_mat(i, m_permute[i]) = 1;
  return;
}
}  // namespace CASM