dox/Filtering/vtkUniformGrid.h

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

  Program:   Visualization Toolkit
  Module:    vtkUniformGrid.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 __vtkUniformGrid_h
#define __vtkUniformGrid_h

#include "vtkImageData.h"

class vtkEmptyCell;
class vtkStructuredVisibilityConstraint;
class vtkUnsignedCharArray;
class vtkAMRBox;

class VTK_FILTERING_EXPORT vtkUniformGrid : public vtkImageData
{
public:

  static vtkUniformGrid *New();
  vtkTypeMacro(vtkUniformGrid,vtkImageData);
  void PrintSelf(ostream& os, vtkIndent indent);

  virtual void CopyStructure(vtkDataSet *ds);

  virtual int GetDataObjectType() {return VTK_UNIFORM_GRID;};


  virtual vtkCell *GetCell(vtkIdType cellId);
  virtual void GetCell(vtkIdType cellId, vtkGenericCell *cell);
  virtual vtkIdType FindCell(
    double x[3], vtkCell *cell, vtkIdType cellId, double tol2,
    int& subId, double pcoords[3], double *weights);
  virtual vtkIdType FindCell(
    double x[3], vtkCell *cell, vtkGenericCell *gencell,
    vtkIdType cellId, double tol2, int& subId,
    double pcoords[3], double *weights);
  virtual vtkCell *FindAndGetCell(
    double x[3], vtkCell *cell, vtkIdType cellId,
    double tol2, int& subId, double pcoords[3],
    double *weights);
  virtual int GetCellType(vtkIdType cellId);
  virtual void GetCellPoints(vtkIdType cellId, vtkIdList *ptIds)
    {vtkStructuredData::GetCellPoints(cellId,ptIds,this->GetDataDescription(),
                                      this->GetDimensions());}
  virtual void GetPointCells(vtkIdType ptId, vtkIdList *cellIds)
    {vtkStructuredData::GetPointCells(ptId,cellIds,this->GetDimensions());}
  virtual void Initialize();
  virtual int GetMaxCellSize() {return 8;}; //voxel is the largest

  //BTX

  int Initialize(const vtkAMRBox *def);
  // Description:
  // Initialize from the definition in the given box, with ghost cell
  // arrays nGhosts cells thick in all directions. The box is expetced
  // to be 3D, if you have 2D data the set the third dimensions 0.
  // eg. (X,X,0)(X,X,0)
  // Returns 0 if the initialization failed.
  int Initialize(const vtkAMRBox *def, int nGhosts);
  // Description:
  // Initialize from the definition in the given box, with ghost cell 
  // arrays of the thickness given in each direction by "nGhosts" array.
  // The box and ghost array are expected to be 3D, if you have 2D data 
  // the set the third dimensions 0. eg. (X,X,0)(X,X,0)
  // Returns 0 if the initialization failed.
  int Initialize(const vtkAMRBox *def, const int nGhosts[3]);
  // Description:
  // Construct a uniform grid, from the definition in the given box
  // "def", with ghost cell arrays of the thickness given in each 
  // direction by "nGhosts*". The box and ghost array are expected
  // to be 3D, if you have 2D data the set the third dimensions 0. eg.
  // (X,X,0)(X,X,0)
  // Returns 0 if the initialization failed.
  int Initialize(const vtkAMRBox *def,int nGhostsI,int nGhostsJ,int nGhostsK);
  //ETX


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


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


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

  virtual vtkUnsignedCharArray *GetPointVisibilityArray();

  virtual void SetPointVisibilityArray(vtkUnsignedCharArray *pointVisibility);

  virtual vtkUnsignedCharArray *GetCellVisibilityArray();

  virtual void SetCellVisibilityArray(vtkUnsignedCharArray *pointVisibility);

  virtual unsigned char IsPointVisible(vtkIdType ptId);

  virtual unsigned char IsCellVisible(vtkIdType cellId);

  virtual unsigned char GetPointBlanking();

  virtual unsigned char GetCellBlanking();

  virtual vtkImageData* NewImageDataCopy();

  //BTX

  static vtkUniformGrid* GetData(vtkInformation* info);
  static vtkUniformGrid* GetData(vtkInformationVector* v, int i=0);
  //ETX

protected:
  vtkUniformGrid();
  ~vtkUniformGrid();
  
  virtual void ComputeScalarRange();
  
  vtkStructuredVisibilityConstraint* PointVisibility;

  void SetPointVisibility(vtkStructuredVisibilityConstraint *pointVisibility);
  vtkGetObjectMacro(PointVisibility, vtkStructuredVisibilityConstraint);

  vtkStructuredVisibilityConstraint* CellVisibility;

  void SetCellVisibility(vtkStructuredVisibilityConstraint *cellVisibility);
  vtkGetObjectMacro(CellVisibility, vtkStructuredVisibilityConstraint);

  vtkEmptyCell* GetEmptyCell();

private:
  vtkUniformGrid(const vtkUniformGrid&);  // Not implemented.
  void operator=(const vtkUniformGrid&);  // Not implemented.

  vtkEmptyCell *EmptyCell;
};


#endif

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