vtkParticleReader.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkParticleReader_h
#define vtkParticleReader_h
 
#include "vtkIOGeometryModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
 
#define VTK_FILE_BYTE_ORDER_BIG_ENDIAN 0
#define VTK_FILE_BYTE_ORDER_LITTLE_ENDIAN 1
 
VTK_ABI_NAMESPACE_BEGIN
class VTKIOGEOMETRY_EXPORT vtkParticleReader : public vtkPolyDataAlgorithm
{
public:
  static vtkParticleReader* New();
  vtkTypeMacro(vtkParticleReader, vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkSetFilePathMacro(FileName);
  vtkGetFilePathMacro(FileName);
 
 
  void SetDataByteOrderToBigEndian();
  void SetDataByteOrderToLittleEndian();
  int GetDataByteOrder();
  void SetDataByteOrder(int);
  const char* GetDataByteOrderAsString();
 
 
  vtkSetMacro(SwapBytes, vtkTypeBool);
  vtkTypeBool GetSwapBytes() { return this->SwapBytes; }
  vtkBooleanMacro(SwapBytes, vtkTypeBool);
 
 
  vtkSetMacro(HasScalar, vtkTypeBool);
  vtkGetMacro(HasScalar, vtkTypeBool);
  vtkBooleanMacro(HasScalar, vtkTypeBool);
 
 
  vtkSetClampMacro(FileType, int, FILE_TYPE_IS_UNKNOWN, FILE_TYPE_IS_BINARY);
  vtkGetMacro(FileType, int);
  void SetFileTypeToUnknown() { this->SetFileType(FILE_TYPE_IS_UNKNOWN); }
  void SetFileTypeToText() { this->SetFileType(FILE_TYPE_IS_TEXT); }
  void SetFileTypeToBinary() { this->SetFileType(FILE_TYPE_IS_BINARY); }
 
 
  vtkSetClampMacro(DataType, int, VTK_FLOAT, VTK_DOUBLE);
  vtkGetMacro(DataType, int);
  void SetDataTypeToFloat() { this->SetDataType(VTK_FLOAT); }
  void SetDataTypeToDouble() { this->SetDataType(VTK_DOUBLE); }
 
protected:
  vtkParticleReader();
  ~vtkParticleReader() override;
 
  void OpenFile();
 
  char* FileName;
  istream* File;
 
  int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
 
  int ProduceOutputFromTextFileDouble(vtkInformationVector* outputVector);
  int ProduceOutputFromTextFileFloat(vtkInformationVector* outputVector);
 
 
  int ProduceOutputFromBinaryFileDouble(vtkInformationVector* outputVector);
  int ProduceOutputFromBinaryFileFloat(vtkInformationVector* outputVector);
 
  int DetermineFileType();
 
  void DoProgressUpdate(size_t& bytesRead, size_t& fileLength);
 
  enum FILE_TYPE
  {
    FILE_TYPE_IS_UNKNOWN = 0,
    FILE_TYPE_IS_TEXT,
    FILE_TYPE_IS_BINARY
  };
 
  vtkTypeBool HasScalar;
  int FileType;
  int DataType;
 
  size_t Alliquot;
  size_t Count;
 
  vtkTypeBool SwapBytes;
  size_t NumberOfPoints;
 
private:
  vtkParticleReader(const vtkParticleReader&) = delete;
  void operator=(const vtkParticleReader&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif