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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkXMLUnstructuredGridReader.h,v $
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 vtkXMLUnstructuredGridReader - Read VTK XML UnstructuredGrid files.
// .SECTION Description
// vtkXMLUnstructuredGridReader reads the VTK XML UnstructuredGrid
// file format. One unstructured grid file can be read to produce one
// output. Streaming is supported. The standard extension for this
// reader's file format is "vtu". This reader is also used to read a
// single piece of the parallel file format.
// .SECTION See Also
// vtkXMLPUnstructuredGridReader
#ifndef __vtkXMLUnstructuredGridReader_h
#define __vtkXMLUnstructuredGridReader_h
#include "vtkXMLUnstructuredDataReader.h"
class vtkUnstructuredGrid;
class VTK_IO_EXPORT vtkXMLUnstructuredGridReader : public vtkXMLUnstructuredDataReader
{
public:
vtkTypeRevisionMacro(vtkXMLUnstructuredGridReader,vtkXMLUnstructuredDataReader);
void PrintSelf(ostream& os, vtkIndent indent);
static vtkXMLUnstructuredGridReader *New();
// Description:
// Get/Set the reader's output.
void SetOutput(vtkUnstructuredGrid *output);
vtkUnstructuredGrid *GetOutput();
vtkUnstructuredGrid *GetOutput(int idx);
protected:
vtkXMLUnstructuredGridReader();
~vtkXMLUnstructuredGridReader();
const char* GetDataSetName();
void GetOutputUpdateExtent(int& piece, int& numberOfPieces, int& ghostLevel);
void SetupOutputTotals();
void SetupPieces(int numPieces);
void DestroyPieces();
void SetupOutputData();
int ReadPiece(vtkXMLDataElement* ePiece);
void SetupNextPiece();
int ReadPieceData();
// Read a data array whose tuples correspond to cells.
int ReadArrayForCells(vtkXMLDataElement* da, vtkDataArray* outArray);
// Get the number of cells in the given piece. Valid after
// UpdateInformation.
virtual vtkIdType GetNumberOfCellsInPiece(int piece);
virtual int FillOutputPortInformation(int, vtkInformation*);
// The index of the cell in the output where the current piece
// begins.
vtkIdType StartCell;
// The Cells element for each piece.
vtkXMLDataElement** CellElements;
vtkIdType* NumberOfCells;
int CellsTimeStep;
unsigned long CellsOffset;
private:
vtkXMLUnstructuredGridReader(const vtkXMLUnstructuredGridReader&); // Not implemented.
void operator=(const vtkXMLUnstructuredGridReader&); // Not implemented.
};
#endif
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