meshhexer.hpp

// FEAT3: Finite Element Analysis Toolbox, Version 3
// Copyright (C) 2010 by Stefan Turek & the FEAT group
// FEAT3 is released under the GNU General Public License version 3,
// see the file 'copyright.txt' in the top level directory for details.
 
#pragma once
 
#include <kernel/base_header.hpp>
 
#if defined(FEAT_HAVE_MESHHEXER) || defined(DOXYGEN)
 
#include <kernel/geometry/conformal_mesh.hpp>
#include <kernel/geometry/subdivision_levels.hpp>
#include <kernel/shape.hpp>
#include <kernel/util/string.hpp>
 
namespace FEAT::Geometry
{
  struct Gap
  {
    double diameter;
    double confidence;
 
    Gap(double d, double c) : diameter(d), confidence(c)
    {
    }
  };
 
  class MeshHexerSurfaceMesh
  {
    void* _surface_mesh;
 
    friend MeshHexerSurfaceMesh load_from_file(const String& filename, bool triangulate);
 
    explicit MeshHexerSurfaceMesh(void* sm) noexcept : _surface_mesh(sm)
    {
    }
 
  public:
    ~MeshHexerSurfaceMesh();
 
    MeshHexerSurfaceMesh(const MeshHexerSurfaceMesh&) = delete;
    MeshHexerSurfaceMesh& operator=(const MeshHexerSurfaceMesh&) = delete;
 
    MeshHexerSurfaceMesh(MeshHexerSurfaceMesh&&) = default;
    MeshHexerSurfaceMesh& operator=(MeshHexerSurfaceMesh&&) = default;
 
    bool is_closed() const;
 
    bool is_wound_consistently() const;
 
    bool is_outward_oriented() const;
 
    double minimal_aspect_ratio() const;
 
    double maximal_aspect_ratio() const;
 
    std::vector<Gap> gaps();
 
    Gap min_gap();
 
    template<typename DataType_>
    ConformalMesh<Shape::Hexahedron, 3, DataType_> fbm_mesh(
      DataType_ x_min,
      DataType_ y_min,
      DataType_ z_min,
      DataType_ x_max,
      DataType_ y_max,
      DataType_ z_max,
      std::uint64_t levels);
 
    template<typename DataType_>
    ConformalMesh<Shape::Hexahedron, 3, DataType_> fbm_mesh(std::uint64_t levels);
 
    template<typename DataType_>
    std::pair<ConformalMesh<Shape::Hexahedron, 3, DataType_>, SubdivisionLevels> prepare_fbm_mesh(
      DataType_ x_min,
      DataType_ y_min,
      DataType_ z_min,
      DataType_ x_max,
      DataType_ y_max,
      DataType_ z_max,
      std::uint64_t levels);
 
    template<typename DataType_>
    std::pair<ConformalMesh<Shape::Hexahedron, 3, DataType_>, SubdivisionLevels> prepare_fbm_mesh(std::uint64_t levels);
 
    void write_to_file(const std::string& filename);
  }; // MeshHexerSurfaceMesh
 
  MeshHexerSurfaceMesh load_from_file(const String& filename, bool triangulate = false);
} // namespace FEAT::Geometry
 
#endif