meshGRegion.h

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// Gmsh - Copyright (C) 1997-2022 C. Geuzaine, J.-F. Remacle
//
// See the LICENSE.txt file in the Gmsh root directory for license information.
// Please report all issues on https://gitlab.onelab.info/gmsh/gmsh/issues.
 
#ifndef MESH_GREGION_H
#define MESH_GREGION_H
 
#include <list>
#include <vector>
#include <map>
#include "MFace.h"
 
class GModel;
class GRegion;
class GFace;
class GEdge;
class MVertex;
class MLine;
class MTriangle;
 
// Create the mesh of the region
class meshGRegion {
public:
  std::vector<GRegion *> &delaunay;
  meshGRegion(std::vector<GRegion *> &d) : delaunay(d) {}
  void operator()(GRegion *);
};
 
class meshGRegionExtruded {
public:
  void operator()(GRegion *);
};
 
// Optimize the mesh of the region using gmsh's algo
class optimizeMeshGRegion {
public:
  void operator()(GRegion *, bool always = false);
};
 
// Optimize the mesh of the region using netgen's algo
class optimizeMeshGRegionNetgen {
public:
  void operator()(GRegion *, bool always = false);
};
 
// destroy the mesh of the region
class deMeshGRegion {
public:
  void operator()(GRegion *);
};
 
void MeshDelaunayVolume(std::vector<GRegion *> &delaunay);
bool CreateAnEmptyVolumeMesh(GRegion *gr);
int MeshTransfiniteVolume(GRegion *gr);
int SubdivideExtrudedMesh(GModel *m);
void carveHole(GRegion *gr, int num, double distance,
               std::vector<int> &surfaces);
 
typedef std::map<MFace, GFace *, MFaceLessThan> fs_cont;
typedef std::multimap<MVertex *, std::pair<MLine *, GEdge *> > es_cont;
GFace *findInFaceSearchStructure(MVertex *p1, MVertex *p2, MVertex *p3,
                                 const fs_cont &search);
GFace *findInFaceSearchStructure(const MFace &f, const fs_cont &search);
GEdge *findInEdgeSearchStructure(MVertex *p1, MVertex *p2,
                                 const es_cont &search);
bool buildFaceSearchStructure(GModel *model, fs_cont &search,
                              bool onlyTriangles = false);
bool buildEdgeSearchStructure(GModel *model, es_cont &search);
 
// hybrid mesh recovery structure
class splitQuadRecovery {
private:
  std::map<MFace, MVertex *, MFaceLessThan> _quad;
  std::map<MFace, GFace *, MFaceLessThan> _tri;
 
public:
  splitQuadRecovery() {}
  void add(const MFace &f, MVertex *v, GFace *gf);
  std::map<MFace, GFace *, MFaceLessThan> &getTri() { return _tri; }
  std::map<MFace, MVertex *, MFaceLessThan> &getQuad() { return _quad; }
  int buildPyramids(GModel *gm);
};
 
// adapt the mesh of a region
class adaptMeshGRegion {
public:
  void operator()(GRegion *);
};
 
#endif