postscript_io.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2019 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_POSTSCRIPT_IO_H
#define LIBMESH_POSTSCRIPT_IO_H
 
// Local includes
#include "libmesh/libmesh_common.h"
#include "libmesh/mesh_output.h"
//#include "libmesh/dense_matrix.h"
#include "libmesh/point.h"
 
// C++ includes
#include <fstream>
#include <sstream>
#include <vector>
 
namespace libMesh
{
 
// Forward declarations
class MeshBase;
class Elem;
 
class PostscriptIO : public MeshOutput<MeshBase>
{
public:
  explicit
  PostscriptIO (const MeshBase & mesh);
 
  virtual ~PostscriptIO ();
 
  virtual void write (const std::string &) override;
 
  Real shade_value;
 
  Real line_width;
 
  void plot_quadratic_elem(const Elem * elem);
 
  void plot_linear_elem(const Elem * elem);
 
private:
  void _compute_edge_bezier_coeffs(const Elem * elem);
 
  //DenseMatrix<float> _M;
  static const float _bezier_transform[3][3];
 
  std::vector<Point> _bezier_coeffs;
 
  Point _offset;
 
  Real _scale;
 
  Point _current_point;
 
  std::ostringstream _cell_string;
 
  std::ofstream _out;
};
 
} // namespace libMesh
 
#endif // LIBMESH_POSTSCRIPT_IO_H