PNGOutput.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
#pragma once
 
#ifdef MOOSE_HAVE_LIBPNG
 
// pnglib includes
#include <png.h>
// MOOSE includes
#include "FileOutput.h"
#include "MooseEnum.h"
// libmesh includes
#include "libmesh/mesh_function.h"
#include "libmesh/bounding_box.h"
 
class PNGOutput : public FileOutput
{
public:
  static InputParameters validParams();
 
  PNGOutput(const InputParameters & parameters);
 
protected:
  void setRGB(png_byte * rgb, Real selection);
 
  void makeMeshFunc();
 
  void calculateRescalingValues();
 
  Real applyScale(Real value_to_scale);
 
  Real reverseScale(Real value_to_unscale);
 
  void makePNG();
 
  virtual void output();
 
  const unsigned int _resolution;
 
  const MooseEnum _color;
 
  const bool _transparent_background;
 
  const Real _transparency;
 
  std::unique_ptr<libMesh::MeshFunction> _mesh_function;
 
  BoundingBox _box;
 
  unsigned int _nl_sys_num;
 
  VariableName _variable;
 
  Real _max;
  Real _min;
 
  Real _scaling_min;
  Real _scaling_max;
  Real _shift_value;
 
  Real _out_bounds_shade;
};
 
#endif