bMatrix.h

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/*
 * -------------------------------------------
 * Copyright (c) 2021 - 2026 Prashant K. Jha
 * -------------------------------------------
 * PeriDEM https://github.com/prashjha/PeriDEM
 *
 * Distributed under the Boost Software License, Version 1.0. (See accompanying
 * file LICENSE)
 */
 
#ifndef FE_BMATRIX_H
#define FE_BMATRIX_H
 
#include <vector>
 
namespace fe {
 
class B {
public:
  B(const std::vector<std::vector<double>> &dNdx, int dim);
 
  int nStrain() const { return d_nStrain; }
  int nDof() const { return d_nDof; }
  int dim() const { return d_dim; }
 
  double operator()(int i, int j) const {
    return d_data[i * d_nDof + j];
  }
 
private:
  int d_dim;
  int d_nStrain;
  int d_nDof;
  std::vector<double> d_data;
};
 
} // namespace fe
 
#endif // FE_BMATRIX_H