vtkUnstructuredPOPReader.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkUnstructuredPOPReader.h

  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.

=========================================================================*/
#ifndef vtkUnstructuredPOPReader_h
#define vtkUnstructuredPOPReader_h

#include "vtkPVVTKExtensionsIOGeneralModule.h" //needed for exports
#include "vtkUnstructuredGridAlgorithm.h"

#include <cstddef> // for ptrdiff_t

class vtkCallbackCommand;
class vtkDataArraySelection;
class vtkIdList;
class vtkUnstructuredPOPReaderInternal;
class VTKPointIterator;

class VTKPVVTKEXTENSIONSIOGENERAL_EXPORT vtkUnstructuredPOPReader
  : public vtkUnstructuredGridAlgorithm
{
public:
  vtkTypeMacro(vtkUnstructuredPOPReader, vtkUnstructuredGridAlgorithm);
  static vtkUnstructuredPOPReader* New();
  void PrintSelf(ostream& os, vtkIndent indent) override;


  vtkSetStringMacro(FileName);
  vtkGetStringMacro(FileName);


  vtkSetVector3Macro(Stride, int);
  vtkGetVector3Macro(Stride, int);


  vtkSetVector6Macro(VOI, int);
  vtkGetVector6Macro(VOI, int);


  virtual int GetNumberOfVariableArrays();
  virtual const char* GetVariableArrayName(int idx);
  virtual int GetVariableArrayStatus(const char* name);
  virtual void SetVariableArrayStatus(const char* name, int status);


  vtkSetMacro(Radius, double);
  vtkGetMacro(Radius, double);


  vtkGetMacro(VectorGrid, int);


  vtkSetMacro(VerticalVelocity, bool);
  vtkGetMacro(VerticalVelocity, bool);

protected:
  vtkUnstructuredPOPReader();
  ~vtkUnstructuredPOPReader() override;

  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;

  static void SelectionModifiedCallback(
    vtkObject* caller, unsigned long eid, void* clientdata, void* calldata);

  static void EventCallback(vtkObject* caller, unsigned long eid, void* clientdata, void* calldata);

  vtkCallbackCommand* SelectionObserver;

  char* FileName;


  char* OpenedFileName;
  vtkSetStringMacro(OpenedFileName);

  int Stride[3];

  int NCDFFD;

  double Radius;

  int VOI[6];


  bool SubsettingXMin;
  bool SubsettingXMax;
  bool ReducedHeightResolution;

  int VectorGrid;

  bool VerticalVelocity;

  bool Transform(vtkUnstructuredGrid* grid, size_t* start, size_t* count, int* wholeExtent,
    int* subExtent, int numberOfGhostLevels, int wrapped, int piece, int numberOfPieces);

  int ProcessGrid(
    vtkUnstructuredGrid* grid, int piece, int numberOfPieces, int numberOfGhostLevels);

  bool ReadMetaData(int wholeExtent[6]);

  int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;

  void LoadPointData(vtkUnstructuredGrid* grid, int netCDFFD, int varidp, size_t* start,
    size_t* count, ptrdiff_t* rStride, const char* arrayName);

  void ComputeVerticalVelocity(vtkUnstructuredGrid* grid, int* wholeExtent, int* subExtent,
    int numberOfGhostLevels, int latlonFileId);

  void CommunicateParallelVerticalVelocity(int* wholeExtent, int* subExtent,
    int numberOfGhostLevels, VTKPointIterator& pointIterator, double* w);

  int GetPointOwnerPiece(int iIndex, int jIndex, int kKindex, int numberOfPieces,
    int numberOfGhostLevels, int* wholeExtent);

  void GetPiecesNeedingPoint(int iIndex, int jIndex, int kKindex, int numberOfPieces,
    int numberOfGhostLevels, int* wholeExtent, vtkIdList* pieceIds);

  bool GetExtentInformation(
    int piece, int numberOfPieces, int numberOfGhostLevels, int* wholeExtent, int* subExtent);

  bool BuildGhostInformation(vtkUnstructuredGrid* grid, int numberOfGhostLevels, int* wholeExtent,
    int* subExtent, int wrapped, int piece, int numberOfPieces);

private:
  vtkUnstructuredPOPReader(const vtkUnstructuredPOPReader&) = delete;
  void operator=(const vtkUnstructuredPOPReader&) = delete;

  vtkUnstructuredPOPReaderInternal* Internals;
};
#endif