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/*=========================================================================
Program: Visualization Toolkit
Module: vtkMultiPieceDataSet.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.
=========================================================================*/
// .NAME vtkMultiPieceDataSet - composite dataset to encapsulates pieces of
// dataset.
// .SECTION Description
// A vtkMultiPieceDataSet dataset groups multiple data pieces together.
// For example, say that a simulation broke a volume into 16 piece so that
// each piece can be processed with 1 process in parallel. We want to load
// this volume in a visualization cluster of 4 nodes. Each node will get 4
// pieces, not necessarily forming a whole rectangular piece. In this case,
// it is not possible to append the 4 pieces together into a vtkImageData.
// In this case, these 4 pieces can be collected together using a
// vtkMultiPieceDataSet.
// Note that vtkMultiPieceDataSet is intended to be included in other composite
// datasets eg. vtkMultiBlockDataSet, vtkHierarchicalBoxDataSet. Hence the lack
// of algorithms producting vtkMultiPieceDataSet.
#ifndef __vtkMultiPieceDataSet_h
#define __vtkMultiPieceDataSet_h
#include "vtkCompositeDataSet.h"
class vtkDataSet;
class VTK_FILTERING_EXPORT vtkMultiPieceDataSet : public vtkCompositeDataSet
{
public:
static vtkMultiPieceDataSet* New();
vtkTypeMacro(vtkMultiPieceDataSet, vtkCompositeDataSet);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Return class name of data type (see vtkType.h for
// definitions).
virtual int GetDataObjectType() {return VTK_MULTIPIECE_DATA_SET;}
// Description:
// Set the number of pieces. This will cause allocation if the new number of
// pieces is greater than the current size. All new pieces are initialized to
// null.
void SetNumberOfPieces(unsigned int numpieces);
// Description:
// Returns the number of pieces.
unsigned int GetNumberOfPieces();
// Description:
// Returns the piece at the given index.
vtkDataSet* GetPiece(unsigned int pieceno);
vtkDataObject* GetPieceAsDataObject(unsigned int pieceno);
// Description:
// Sets the data object as the given piece. The total number of pieces will
// be resized to fit the requested piece no.
void SetPiece(unsigned int pieceno, vtkDataObject* piece);
// Description:
// Returns true if meta-data is available for a given piece.
int HasMetaData(unsigned int piece)
{ return this->Superclass::HasChildMetaData(piece); }
// Description:
// Returns the meta-data for the piece. If none is already present, a new
// vtkInformation object will be allocated. Use HasMetaData to avoid
// allocating vtkInformation objects.
vtkInformation* GetMetaData(unsigned int pieceno)
{ return this->Superclass::GetChildMetaData(pieceno); }
//BTX
// Description:
// Retrieve an instance of this class from an information object.
static vtkMultiPieceDataSet* GetData(vtkInformation* info);
static vtkMultiPieceDataSet* GetData(vtkInformationVector* v, int i=0);
//ETX
// Description:
// Unhiding superclass method.
virtual vtkInformation* GetMetaData(vtkCompositeDataIterator* iter)
{ return this->Superclass::GetMetaData(iter); }
// Description:
// Unhiding superclass method.
virtual int HasMetaData(vtkCompositeDataIterator* iter)
{ return this->Superclass::HasMetaData(iter); }
//BTX
protected:
vtkMultiPieceDataSet();
~vtkMultiPieceDataSet();
private:
vtkMultiPieceDataSet(const vtkMultiPieceDataSet&); // Not implemented.
void operator=(const vtkMultiPieceDataSet&); // Not implemented.
//ETX
};
#endif