vtkUnstructuredGrid.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkUnstructuredGrid.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkUnstructuredGrid_h
#define vtkUnstructuredGrid_h

#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkUnstructuredGridBase.h"

class vtkCellArray;
class vtkCellLinks;
class vtkConvexPointSet;
class vtkEmptyCell;
class vtkHexahedron;
class vtkIdList;
class vtkIdTypeArray;
class vtkLagrangeCurve;
class vtkLagrangeQuadrilateral;
class vtkLagrangeHexahedron;
class vtkLagrangeTriangle;
class vtkLagrangeTetra;
class vtkLagrangeWedge;
class vtkLine;
class vtkPixel;
class vtkPolyLine;
class vtkPolyVertex;
class vtkPolygon;
class vtkPyramid;
class vtkPentagonalPrism;
class vtkHexagonalPrism;
class vtkQuad;
class vtkQuadraticEdge;
class vtkQuadraticHexahedron;
class vtkQuadraticWedge;
class vtkQuadraticPolygon;
class vtkQuadraticPyramid;
class vtkQuadraticQuad;
class vtkQuadraticTetra;
class vtkQuadraticTriangle;
class vtkTetra;
class vtkTriangle;
class vtkTriangleStrip;
class vtkUnsignedCharArray;
class vtkVertex;
class vtkVoxel;
class vtkWedge;
class vtkTriQuadraticHexahedron;
class vtkQuadraticLinearWedge;
class vtkQuadraticLinearQuad;
class vtkBiQuadraticQuad;
class vtkBiQuadraticQuadraticWedge;
class vtkBiQuadraticQuadraticHexahedron;
class vtkBiQuadraticTriangle;
class vtkCubicLine;
class vtkPolyhedron;
class vtkIdTypeArray;

class VTKCOMMONDATAMODEL_EXPORT vtkUnstructuredGrid :
    public vtkUnstructuredGridBase
{
public:
  static vtkUnstructuredGrid *New();

  vtkTypeMacro(vtkUnstructuredGrid, vtkUnstructuredGridBase)
  void PrintSelf(ostream& os, vtkIndent indent) override;

  int GetDataObjectType() override {return VTK_UNSTRUCTURED_GRID;};

  void Allocate(vtkIdType numCells=1000, int extSize=1000) override;


  void Reset();
  void CopyStructure(vtkDataSet *ds) override;
  vtkIdType GetNumberOfCells() override;
  using vtkDataSet::GetCell;
  vtkCell *GetCell(vtkIdType cellId) override;
  void GetCell(vtkIdType cellId, vtkGenericCell *cell) override;
  void GetCellBounds(vtkIdType cellId, double bounds[6]) override;
  void GetCellPoints(vtkIdType cellId, vtkIdList *ptIds) override;
  void GetPointCells(vtkIdType ptId, vtkIdList *cellIds) override;
  vtkCellIterator* NewCellIterator() override;

  int GetCellType(vtkIdType cellId) override;
  vtkUnsignedCharArray* GetCellTypesArray() { return this->Types; }
  vtkIdTypeArray* GetCellLocationsArray() { return this->Locations; }
  void Squeeze() override;
  void Initialize() override;
  int GetMaxCellSize() override;
  void BuildLinks();
  vtkCellLinks *GetCellLinks() {return this->Links;};
  virtual void GetCellPoints(vtkIdType cellId, vtkIdType& npts,
                             vtkIdType* &pts);

  void GetFaceStream(vtkIdType cellId, vtkIdList *ptIds);

  void GetFaceStream(vtkIdType cellId, vtkIdType& nfaces, vtkIdType* &ptIds);


  void SetCells(int type, vtkCellArray *cells);
  void SetCells(int *types, vtkCellArray *cells);
  void SetCells(vtkUnsignedCharArray *cellTypes, vtkIdTypeArray *cellLocations,
                vtkCellArray *cells);
  void SetCells(vtkUnsignedCharArray *cellTypes, vtkIdTypeArray *cellLocations,
                vtkCellArray *cells, vtkIdTypeArray *faceLocations,
                vtkIdTypeArray *faces);

  vtkCellArray *GetCells() {return this->Connectivity;};
  vtkIdType InsertNextLinkedCell(int type, int npts, const vtkIdType pts[]) VTK_SIZEHINT(pts, npts);
  void RemoveReferenceToCell(vtkIdType ptId, vtkIdType cellId);
  void AddReferenceToCell(vtkIdType ptId, vtkIdType cellId);
  void ResizeCellList(vtkIdType ptId, int size);

  void GetCellNeighbors(vtkIdType cellId, vtkIdList *ptIds,
                        vtkIdList *cellIds) override;


  virtual int GetPiece();
  virtual int GetNumberOfPieces();

  virtual int GetGhostLevel();

  unsigned long GetActualMemorySize() override;


  void ShallowCopy(vtkDataObject *src) override;
  void DeepCopy(vtkDataObject *src) override;

  void GetIdsOfCellsOfType(int type, vtkIdTypeArray *array) override;

  int IsHomogeneous() override;

  void RemoveGhostCells();


  static vtkUnstructuredGrid* GetData(vtkInformation* info);
  static vtkUnstructuredGrid* GetData(vtkInformationVector* v, int i=0);

  vtkIdType      *GetFaces(vtkIdType cellId);


  vtkIdTypeArray* GetFaces(){return this->Faces;};
  vtkIdTypeArray* GetFaceLocations(){return this->FaceLocations;};

  int InitializeFacesRepresentation(vtkIdType numPrevCells);

  virtual vtkMTimeType GetMeshMTime();

  static void DecomposeAPolyhedronCell(vtkCellArray *polyhedronCellArray,
                                       vtkIdType & nCellpts,
                                       vtkIdType & nCellfaces,
                                       vtkCellArray *cellArray,
                                       vtkIdTypeArray *faces);

  static void DecomposeAPolyhedronCell(vtkIdType * polyhedronCellStream,
                                       vtkIdType & nCellpts,
                                       vtkIdType & nCellfaces,
                                       vtkCellArray *cellArray,
                                       vtkIdTypeArray *faces);

  static void DecomposeAPolyhedronCell(vtkIdType nCellFaces,
                                       const vtkIdType * inFaceStream,
                                       vtkIdType & nCellpts,
                                       vtkCellArray * cellArray,
                                       vtkIdTypeArray * faces);

  static void ConvertFaceStreamPointIds(vtkIdList * faceStream,
                                        vtkIdType * idMap);

  static void ConvertFaceStreamPointIds(vtkIdType nfaces,
                                        vtkIdType * faceStream,
                                        vtkIdType * idMap);


protected:
  vtkUnstructuredGrid();
  ~vtkUnstructuredGrid() override;

  // used by GetCell method
  vtkVertex                         *Vertex;
  vtkPolyVertex                     *PolyVertex;
  vtkLagrangeCurve                  *LagrangeCurve;
  vtkLagrangeQuadrilateral          *LagrangeQuadrilateral;
  vtkLagrangeHexahedron             *LagrangeHexahedron;
  vtkLagrangeTriangle               *LagrangeTriangle;
  vtkLagrangeTetra                  *LagrangeTetra;
  vtkLagrangeWedge                  *LagrangeWedge;
  vtkLine                           *Line;
  vtkPolyLine                       *PolyLine;
  vtkTriangle                       *Triangle;
  vtkTriangleStrip                  *TriangleStrip;
  vtkPixel                          *Pixel;
  vtkQuad                           *Quad;
  vtkPolygon                        *Polygon;
  vtkTetra                          *Tetra;
  vtkVoxel                          *Voxel;
  vtkHexahedron                     *Hexahedron;
  vtkWedge                          *Wedge;
  vtkPyramid                        *Pyramid;
  vtkPentagonalPrism                *PentagonalPrism;
  vtkHexagonalPrism                 *HexagonalPrism;
  vtkQuadraticEdge                  *QuadraticEdge;
  vtkQuadraticTriangle              *QuadraticTriangle;
  vtkQuadraticQuad                  *QuadraticQuad;
  vtkQuadraticPolygon               *QuadraticPolygon;
  vtkQuadraticTetra                 *QuadraticTetra;
  vtkQuadraticHexahedron            *QuadraticHexahedron;
  vtkQuadraticWedge                 *QuadraticWedge;
  vtkQuadraticPyramid               *QuadraticPyramid;
  vtkQuadraticLinearQuad            *QuadraticLinearQuad;
  vtkBiQuadraticQuad                *BiQuadraticQuad;
  vtkTriQuadraticHexahedron         *TriQuadraticHexahedron;
  vtkQuadraticLinearWedge           *QuadraticLinearWedge;
  vtkBiQuadraticQuadraticWedge      *BiQuadraticQuadraticWedge;
  vtkBiQuadraticQuadraticHexahedron *BiQuadraticQuadraticHexahedron;
  vtkBiQuadraticTriangle            *BiQuadraticTriangle;
  vtkCubicLine                      *CubicLine;
  vtkConvexPointSet                 *ConvexPointSet;
  vtkPolyhedron                     *Polyhedron;
  vtkEmptyCell                      *EmptyCell;

  // points inherited
  // point data (i.e., scalars, vectors, normals, tcoords) inherited
  vtkCellArray *Connectivity;
  vtkCellLinks *Links;
  vtkUnsignedCharArray *Types;
  vtkIdTypeArray *Locations;

  // Special support for polyhedra/cells with explicit face representations.
  // The Faces class represents polygonal faces using a modified vtkCellArray
  // structure. Each cell face list begins with the total number of faces in
  // the cell, followed by a vtkCellArray data organization
  // (n,i,j,k,n,i,j,k,...).
  vtkIdTypeArray *Faces;
  vtkIdTypeArray *FaceLocations;

  vtkIdType InternalInsertNextCell(int type, vtkIdType npts, const vtkIdType ptIds[]) override;
  vtkIdType InternalInsertNextCell(int type, vtkIdList *ptIds) override;
  vtkIdType InternalInsertNextCell(int type, vtkIdType npts, const vtkIdType ptIds[],
    vtkIdType nfaces, const vtkIdType faces[]) override;
  void InternalReplaceCell(vtkIdType cellId, int npts, const vtkIdType pts[]) override;

private:
  // Hide these from the user and the compiler.
  vtkUnstructuredGrid(const vtkUnstructuredGrid&) = delete;
  void operator=(const vtkUnstructuredGrid&) = delete;

  void Cleanup();
};

#endif