poly_MarchingCubes.h

//-----------------------------------------------------------------------------
// Created on: 27 December 2019
//-----------------------------------------------------------------------------
// Copyright (c) 2019-present, Sergey Slyadnev
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//    * Redistributions of source code must retain the above copyright
//      notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above copyright
//      notice, this list of conditions and the following disclaimer in the
//      documentation and/or other materials provided with the distribution.
//    * Neither the name of Sergey Slyadnev nor the
//      names of all contributors may be used to endorse or promote products
//      derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//-----------------------------------------------------------------------------
 
#ifndef poly_MarchingCubes_HeaderFile
#define poly_MarchingCubes_HeaderFile
 
// Poly includes
#include <mobius/poly_GridTessellator.h>
#include <mobius/poly_RealFunc.h>
 
namespace mobius {
 
class poly_MarchingCubes : public poly_GridTessellator
{
public:
 
  mobiusPoly_EXPORT static t_ptr<t_mesh>
    PolygonizeVoxel(const t_xyz&                P0,
                    const t_xyz&                P7,
                    const t_ptr<poly_RealFunc>& func,
                    const double                isoValue);
 
  mobiusPoly_EXPORT static int
    GetCubeIndex(double voxelScalars[2][2][2]);
 
  mobiusPoly_EXPORT static t_xyz
    GetVoxelCorner(const t_xyz& origin,
                   const double dx,
                   const double dy,
                   const double dz,
                   const int    nx,
                   const int    ny,
                   const int    nz);
 
  mobiusPoly_EXPORT static t_xyz
    InterpVertex(const t_xyz& point1,
                 const t_xyz& point2,
                 const double scalar1,
                 const double scalar2);
 
public:
 
  mobiusPoly_EXPORT
    poly_MarchingCubes(const t_ptr<poly_RealFunc>& func,
                       const int                   numSlices = 128,
                       core_ProgressEntry          progress  = nullptr,
                       core_PlotterEntry           plotter   = nullptr);
 
  virtual ~poly_MarchingCubes() = default;
 
private:
 
  mobiusPoly_EXPORT virtual bool
    perform(const double isoValue);
 
protected:
 
  t_ptr<poly_RealFunc> m_func; 
 
};
 
}
 
#endif