MatrixHelper2d.h

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/***************************************************************************
 *  ThunderEgg, a library for solvers on adaptively refined block-structured
 *  Cartesian grids.
 *
 *  Copyright (c) 2018-2021 Scott Aiton
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 ***************************************************************************/
 
#ifndef THUNDEREGG_POISSON_MATRIXHELPER2D_H
#define THUNDEREGG_POISSON_MATRIXHELPER2D_H
 
#include <ThunderEgg/Domain.h>
#include <petscmat.h>
 
namespace ThunderEgg::Poisson {
class MatrixHelper2d
{
private:
  Domain<2> domain;
  std::bitset<4> neumann;
 
public:
  MatrixHelper2d(const Domain<2>& domain, std::bitset<4> neumann);
 
  Mat formCRSMatrix(double lambda = 0);
};
} // namespace ThunderEgg::Poisson
#endif