gnuplot_io.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2025 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner

// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.

// This library 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
// Lesser General Public License for more details.

// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA



#ifndef LIBMESH_GNUPLOT_IO_H
#define LIBMESH_GNUPLOT_IO_H

// Local includes
#include "libmesh/mesh_output.h"

// C++ includes
#include <cstddef>


namespace libMesh
{

// forward declaration
class MeshBase;

class GnuPlotIO : public MeshOutput<MeshBase>
{
public:

  enum PlottingProperties { GRID_ON    = 1,
                            PNG_OUTPUT = 2};

  explicit
  GnuPlotIO (const MeshBase &,
             const std::string & = std::string("FE 1D Solution"),
             int properties=0);

  virtual void write(const std::string &) override;

  using MeshOutput<MeshBase>::write_nodal_data;

  virtual void write_nodal_data (const std::string &,
                                 const std::vector<Number> &,
                                 const std::vector<std::string> &) override;

  void set_title(std::string title) { _title = std::move(title); }

  void use_grid(bool grid) { _grid = grid; }


  void set_png_output(bool png_output) { _png_output = png_output; }

  std::string axes_limits;

private:
  void write_solution (const std::string &,
                       const std::vector<Number> * = nullptr,
                       const std::vector<std::string> * = nullptr);

  std::string _title;

  bool _grid;
  bool _png_output;
};

} // namespace libMesh


#endif // LIBMESH_GNUPLOT_IO_H