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Common/vtkUnstructuredGrid.h

Go to the documentation of this file.

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkUnstructuredGrid.h,v $
  Language:  C++


Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
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 name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
   of any contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.

 * Modified source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

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 __vtkUnstructuredGrid_h
#define __vtkUnstructuredGrid_h

#include "vtkPointSet.h"
#include "vtkIdList.h"
#include "vtkCellArray.h"
#include "vtkCellLinks.h"
#include "vtkIntArray.h"
#include "vtkUnsignedCharArray.h"
class vtkVertex;
class vtkPolyVertex;
class vtkLine;
class vtkPolyLine;
class vtkTriangle;
class vtkTriangleStrip;
class vtkPixel;
class vtkQuad;
class vtkPolygon;
class vtkTetra;
class vtkVoxel;
class vtkHexahedron;
class vtkWedge;
class vtkPyramid;

class VTK_COMMON_EXPORT vtkUnstructuredGrid : public vtkPointSet {
private:
  vtkUnstructuredGrid(const vtkUnstructuredGrid&);  // Not implemented.
  void operator=(const vtkUnstructuredGrid&);  // Not implemented.
public:
  static vtkUnstructuredGrid *New();

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


  int GetDataObjectType() {return VTK_UNSTRUCTURED_GRID;};
  virtual void Allocate(vtkIdType numCells=1000, int extSize=1000);
  int InsertNextCell(int type, int npts, vtkIdType *pts);
  int InsertNextCell(int type, vtkIdList *ptIds);
  void Reset();
  void SetCells(int *types, vtkCellArray *cells);
  void SetCells(vtkUnsignedCharArray *cellTypes, vtkIntArray *cellLocations, 
                vtkCellArray *cells);
  vtkCellArray *GetCells() {return this->Connectivity;};
  vtkDataObject *MakeObject() {return vtkUnstructuredGrid::New();};
  virtual void CopyStructure(vtkDataSet *ds);
  vtkIdType GetNumberOfCells();
  virtual vtkCell *GetCell(vtkIdType cellId);
  virtual void GetCell(vtkIdType cellId, vtkGenericCell *cell);
  virtual void GetCellBounds(vtkIdType cellId, float bounds[6]);
  virtual void GetCellPoints(vtkIdType cellId, vtkIdList *ptIds);
  void GetPointCells(vtkIdType ptId, vtkIdList *cellIds);

  int GetCellType(vtkIdType cellId);
  void Squeeze();
  void Initialize();
  int GetMaxCellSize();
  void BuildLinks();
  vtkCellLinks *GetCellLinks() {return this->Links;};
  virtual void GetCellPoints(vtkIdType cellId, vtkIdType& npts,
                             vtkIdType* &pts);
  void ReplaceCell(vtkIdType cellId, int npts, vtkIdType *pts);
  int InsertNextLinkedCell(int type, int npts, vtkIdType *pts);
  void RemoveReferenceToCell(vtkIdType ptId, vtkIdType cellId);
  void AddReferenceToCell(vtkIdType ptId, vtkIdType cellId);
  void ResizeCellList(vtkIdType ptId, int size);


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


  void SetUpdateExtent(int piece, int numPieces, int ghostLevel);
  void SetUpdateExtent(int piece, int numPieces)
    {this->SetUpdateExtent(piece, numPieces, 0);}
  void GetUpdateExtent(int &piece, int &numPieces, int &ghostLevel);


  vtkGetVector6Macro( UpdateExtent, int );


  void SetUpdateExtent( int x1, int x2, int y1, int y2, int z1, int z2 )
    { this->vtkPointSet::SetUpdateExtent( x1, x2, y1, y2, z1, z2 ); };
  void SetUpdateExtent( int ext[6] )
    { this->vtkPointSet::SetUpdateExtent( ext ); };



  vtkGetMacro( Piece, int );
  vtkGetMacro( NumberOfPieces, int );


  vtkGetMacro( GhostLevel, int );
  
  unsigned long GetActualMemorySize();
    

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

  void GetListOfUniqueCellTypes(vtkUnsignedCharArray *uniqueTypes);

  void GetIdsOfCellsOfType(int type, vtkIntArray *array);

  int IsHomogeneous();

protected:
  vtkUnstructuredGrid();
  ~vtkUnstructuredGrid();

  // used by GetCell method
  vtkVertex *Vertex;
  vtkPolyVertex *PolyVertex;
  vtkLine *Line;
  vtkPolyLine *PolyLine;
  vtkTriangle *Triangle;
  vtkTriangleStrip *TriangleStrip;
  vtkPixel *Pixel;
  vtkQuad *Quad;
  vtkPolygon *Polygon;
  vtkTetra *Tetra;
  vtkVoxel *Voxel;
  vtkHexahedron *Hexahedron;
  vtkWedge *Wedge;
  vtkPyramid *Pyramid;
  
  // points inherited
  // point data (i.e., scalars, vectors, normals, tcoords) inherited
  vtkCellArray *Connectivity;
  vtkCellLinks *Links;
  vtkUnsignedCharArray *Types;
  vtkIntArray *Locations;

 private:
  // Hide these from the user and the compiler.
  

  void GetCellNeighbors(vtkIdType cellId, vtkIdList& ptIds, vtkIdList& cellIds)
    {this->GetCellNeighbors(cellId, &ptIds, &cellIds);}
};

#endif

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