vtkStructuredGrid.h

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

  Program:   Visualization Toolkit
  Module:    vtkStructuredGrid.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 vtkStructuredGrid_h
#define vtkStructuredGrid_h

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

#include "vtkStructuredData.h" // Needed for inline methods

class vtkEmptyCell;
class vtkHexahedron;
class vtkLine;
class vtkQuad;
class vtkUnsignedCharArray;
class vtkVertex;

class VTKCOMMONDATAMODEL_EXPORT vtkStructuredGrid : public vtkPointSet
{
public:
  static vtkStructuredGrid *New();

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

  int GetDataObjectType() override {return VTK_STRUCTURED_GRID;}

  void CopyStructure(vtkDataSet *ds) override;


  vtkIdType GetNumberOfPoints() override
    {return vtkPointSet::GetNumberOfPoints();}
  double *GetPoint(vtkIdType ptId) VTK_SIZEHINT(3) override
    {return this->vtkPointSet::GetPoint(ptId);}
  void GetPoint(vtkIdType ptId, double p[3]) override
    {this->vtkPointSet::GetPoint(ptId,p);}
  vtkCell *GetCell(vtkIdType cellId) override;
  vtkCell *GetCell(int i, int j, int k) override;
  void GetCell(vtkIdType cellId, vtkGenericCell *cell) override;
  void GetCellBounds(vtkIdType cellId, double bounds[6]) override;
  int GetCellType(vtkIdType cellId) override;
  vtkIdType GetNumberOfCells() override;
  void GetCellPoints(vtkIdType cellId, vtkIdList *ptIds) override;
  void GetPointCells(vtkIdType ptId, vtkIdList *cellIds) override
  {
      vtkStructuredData::GetPointCells(ptId,cellIds,this->GetDimensions());
  }
  void Initialize() override;
  int GetMaxCellSize() override {return 8;}; //hexahedron is the largest
  void GetCellNeighbors(vtkIdType cellId, vtkIdList *ptIds,
                        vtkIdList *cellIds) override;
  void GetCellNeighbors(vtkIdType cellId, vtkIdList *ptIds,
                        vtkIdList *cellIds, int *seedLoc);


  void SetDimensions(int i, int j, int k);
  void SetDimensions(const int dim[3]);


  virtual int *GetDimensions () VTK_SIZEHINT(3);
  virtual void GetDimensions (int dim[3]);

  int GetDataDimension();


  void SetExtent(int extent[6]);
  void SetExtent(int x1, int x2, int y1, int y2, int z1, int z2);
  vtkGetVector6Macro(Extent, int);

  unsigned long GetActualMemorySize() override;


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

  int GetExtentType() override { return VTK_3D_EXTENT; }


  void BlankPoint(vtkIdType ptId);
  void UnBlankPoint(vtkIdType ptId);


  void BlankCell(vtkIdType ptId);
  void UnBlankCell(vtkIdType ptId);

  unsigned char IsPointVisible(vtkIdType ptId);

  unsigned char IsCellVisible(vtkIdType cellId);

  bool HasAnyBlankPoints() override;
  bool HasAnyBlankCells() override;

  void GetCellDims( int cellDims[3] );

  void Crop(const int* updateExtent) override;


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

  void GetPoint(int i, int j, int k, double p[3], bool adjustForExtent = true);

protected:
  vtkStructuredGrid();
  ~vtkStructuredGrid() override;

  // for the GetCell method
  vtkVertex *Vertex;
  vtkLine *Line;
  vtkQuad *Quad;
  vtkHexahedron *Hexahedron;
  vtkEmptyCell *EmptyCell;

  int Dimensions[3];
  int DataDescription;

  int Extent[6];

  void ComputeScalarRange() override;

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

  // Internal method used by DeepCopy and ShallowCopy.
  void InternalStructuredGridCopy(vtkStructuredGrid *src);

  static unsigned char MASKED_CELL_VALUE;

private:
  vtkStructuredGrid(const vtkStructuredGrid&) = delete;
  void operator=(const vtkStructuredGrid&) = delete;
};


inline vtkIdType vtkStructuredGrid::GetNumberOfCells()
{
  vtkIdType nCells=1;
  int dims[3];
  int i;

  this->GetDimensions(dims);
  for (i=0; i<3; i++)
  {
    if (dims[i] <= 0)
    {
      return 0;
    }
    if (dims[i] > 1)
    {
      nCells *= (dims[i]-1);
    }
  }

  return nCells;
}

inline int vtkStructuredGrid::GetDataDimension()
{
  return vtkStructuredData::GetDataDimension(this->DataDescription);
}

#endif