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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkXMLPolyDataReader
* @brief Read VTK XML PolyData files.
*
* vtkXMLPolyDataReader reads the VTK XML PolyData file format. One
* polygonal data file can be read to produce one output. Streaming
* is supported. The standard extension for this reader's file format
* is "vtp". This reader is also used to read a single piece of the
* parallel file format.
*
* @sa
* vtkXMLPPolyDataReader
*/
#ifndef vtkXMLPolyDataReader_h
#define vtkXMLPolyDataReader_h
#include "vtkIOXMLModule.h" // For export macro
#include "vtkXMLUnstructuredDataReader.h"
VTK_ABI_NAMESPACE_BEGIN
class vtkPolyData;
class VTKIOXML_EXPORT vtkXMLPolyDataReader : public vtkXMLUnstructuredDataReader
{
public:
vtkTypeMacro(vtkXMLPolyDataReader, vtkXMLUnstructuredDataReader);
void PrintSelf(ostream& os, vtkIndent indent) override;
static vtkXMLPolyDataReader* New();
///@{
/**
* Get the reader's output.
*/
vtkPolyData* GetOutput();
vtkPolyData* GetOutput(int idx);
///@}
///@{
/**
* Get the number of verts/lines/strips/polys in the output.
*/
virtual vtkIdType GetNumberOfVerts();
virtual vtkIdType GetNumberOfLines();
virtual vtkIdType GetNumberOfStrips();
virtual vtkIdType GetNumberOfPolys();
///@}
protected:
vtkXMLPolyDataReader();
~vtkXMLPolyDataReader() override;
const char* GetDataSetName() override;
void GetOutputUpdateExtent(int& piece, int& numberOfPieces, int& ghostLevel) override;
void SetupOutputTotals() override;
void SetupNextPiece() override;
void SetupPieces(int numPieces) override;
void DestroyPieces() override;
void SetupOutputData() override;
int ReadPiece(vtkXMLDataElement* ePiece) override;
int ReadPieceData() override;
// Read a data array whose tuples coorrespond to cells.
int ReadArrayForCells(vtkXMLDataElement* da, vtkAbstractArray* outArray) override;
// Get the number of cells in the given piece. Valid after
// UpdateInformation.
vtkIdType GetNumberOfCellsInPiece(int piece) override;
int FillOutputPortInformation(int, vtkInformation*) override;
// The size of the UpdatePiece.
int TotalNumberOfVerts;
int TotalNumberOfLines;
int TotalNumberOfStrips;
int TotalNumberOfPolys;
vtkIdType StartVert;
vtkIdType StartLine;
vtkIdType StartStrip;
vtkIdType StartPoly;
// The cell elements for each piece.
vtkXMLDataElement** VertElements;
vtkXMLDataElement** LineElements;
vtkXMLDataElement** StripElements;
vtkXMLDataElement** PolyElements;
vtkIdType* NumberOfVerts;
vtkIdType* NumberOfLines;
vtkIdType* NumberOfStrips;
vtkIdType* NumberOfPolys;
// For TimeStep support
int VertsTimeStep;
unsigned long VertsOffset;
int LinesTimeStep;
unsigned long LinesOffset;
int StripsTimeStep;
unsigned long StripsOffset;
int PolysTimeStep;
unsigned long PolysOffset;
private:
vtkXMLPolyDataReader(const vtkXMLPolyDataReader&) = delete;
void operator=(const vtkXMLPolyDataReader&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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