vtkMINCImageReader.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright (c) 2006 Atamai, Inc.
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkMINCImageReader_h
#define vtkMINCImageReader_h

#include "vtkIOMINCModule.h" // For export macro
#include "vtkImageReader2.h"

VTK_ABI_NAMESPACE_BEGIN
class vtkStringArray;
class vtkIdTypeArray;
class vtkDoubleArray;
class vtkMatrix4x4;

// A special class that holds the attributes
class vtkMINCImageAttributes;

class VTKIOMINC_EXPORT vtkMINCImageReader : public vtkImageReader2
{
public:
  vtkTypeMacro(vtkMINCImageReader, vtkImageReader2);

  static vtkMINCImageReader* New();
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void SetFileName(VTK_FILEPATH const char* name) override;

  const char* GetFileExtensions() override { return ".mnc"; }

  const char* GetDescriptiveName() override { return "MINC"; }

  using Superclass::CanReadFile;
  int CanReadFile(VTK_FILEPATH const char* name) override;

  virtual vtkMatrix4x4* GetDirectionCosines();


  virtual double GetRescaleSlope();
  virtual double GetRescaleIntercept();


  vtkSetMacro(RescaleRealValues, vtkTypeBool);
  vtkBooleanMacro(RescaleRealValues, vtkTypeBool);
  vtkGetMacro(RescaleRealValues, vtkTypeBool);


  virtual double* GetDataRange() VTK_SIZEHINT(2);
  virtual void GetDataRange(double range[2])
  {
    double* r = this->GetDataRange();
    range[0] = r[0];
    range[1] = r[1];
  }

  virtual int GetNumberOfTimeSteps();


  vtkSetMacro(TimeStep, int);
  vtkGetMacro(TimeStep, int);

  virtual vtkMINCImageAttributes* GetImageAttributes();

protected:
  vtkMINCImageReader();
  ~vtkMINCImageReader() override;

  int MINCImageType;
  int MINCImageTypeSigned;

  double ValidRange[2];
  double ImageRange[2];
  double DataRange[2];

  int NumberOfTimeSteps;
  int TimeStep;
  vtkMatrix4x4* DirectionCosines;
  double RescaleSlope;
  double RescaleIntercept;
  vtkTypeBool RescaleRealValues;
  vtkMINCImageAttributes* ImageAttributes;

  int FileNameHasChanged;

  virtual int OpenNetCDFFile(const char* filename, int& ncid);
  virtual int CloseNetCDFFile(int ncid);
  virtual int IndexFromDimensionName(const char* dimName);
  virtual int ReadMINCFileAttributes();
  virtual void FindRangeAndRescaleValues();
  static int ConvertMINCTypeToVTKType(int minctype, int mincsigned);

  void ExecuteInformation() override;
  void ExecuteDataWithInformation(vtkDataObject* out, vtkInformation* outInfo) override;

private:
  vtkMINCImageReader(const vtkMINCImageReader&) = delete;
  void operator=(const vtkMINCImageReader&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif