vtkXMLPolyDataReader.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkXMLPolyDataReader_h
#define vtkXMLPolyDataReader_h
 
#include "vtkIOXMLModule.h"   // For export macro
#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO
#include "vtkXMLUnstructuredDataReader.h"
 
VTK_ABI_NAMESPACE_BEGIN
class vtkPolyData;
 
class VTKIOXML_EXPORT VTK_MARSHALAUTO vtkXMLPolyDataReader : public vtkXMLUnstructuredDataReader
{
public:
  vtkTypeMacro(vtkXMLPolyDataReader, vtkXMLUnstructuredDataReader);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  static vtkXMLPolyDataReader* New();


  vtkPolyData* GetOutput();
  vtkPolyData* GetOutput(int idx);


  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