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/*=========================================================================
Program: Visualization Toolkit
Module: vtkCPExodusIIInSituReader.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.
=========================================================================*/
/**
* @class vtkCPExodusIIInSituReader
* @brief Read an Exodus II file into data structures
* that map the raw arrays returned by the Exodus II library into a multi-block
* data set containing vtkUnstructuredGridBase subclasses.
*
*
* This class can be used to import Exodus II files into VTK without repacking
* the data into the standard VTK memory layout, avoiding the cost of a deep
* copy.
*/
#ifndef vtkCPExodusIIInSituReader_h
#define vtkCPExodusIIInSituReader_h
#include "vtkIOExodusModule.h" // For export macro
#include "vtkMultiBlockDataSetAlgorithm.h"
#include "vtkNew.h" // For vtkNew
#include <string> // For std::string
#include <vector> // For std::vector
VTK_ABI_NAMESPACE_BEGIN
class vtkDataArrayCollection;
class vtkPointData;
class vtkPoints;
class VTKIOEXODUS_EXPORT vtkCPExodusIIInSituReader : public vtkMultiBlockDataSetAlgorithm
{
public:
static vtkCPExodusIIInSituReader* New();
vtkTypeMacro(vtkCPExodusIIInSituReader, vtkMultiBlockDataSetAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* Get/Set the name of the Exodus file to read.
*/
vtkSetFilePathMacro(FileName);
vtkGetFilePathMacro(FileName);
///@}
///@{
/**
* Get/Set the current timestep to read as a zero-based index.
*/
vtkGetMacro(CurrentTimeStep, int);
vtkSetMacro(CurrentTimeStep, int);
///@}
///@{
/**
* Get the range of timesteps, represented as [0, numTimeSteps - 1]. Call
* UpdateInformation first to set this without reading any timestep data.
*/
vtkGetVector2Macro(TimeStepRange, int);
///@}
/**
* Get the floating point tag associated with the timestep at 'step'.
*/
double GetTimeStepValue(int step) { return TimeSteps.at(step); }
protected:
vtkCPExodusIIInSituReader();
~vtkCPExodusIIInSituReader() override;
vtkTypeBool ProcessRequest(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector) override;
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
private:
vtkCPExodusIIInSituReader(const vtkCPExodusIIInSituReader&) = delete;
void operator=(const vtkCPExodusIIInSituReader&) = delete;
bool ExOpen();
char* FileName;
int FileId;
bool ExGetMetaData();
int NumberOfDimensions;
int NumberOfNodes;
int NumberOfElementBlocks;
std::vector<std::string> NodalVariableNames;
std::vector<std::string> ElementVariableNames;
std::vector<int> ElementBlockIds;
std::vector<double> TimeSteps;
int TimeStepRange[2];
bool ExGetCoords();
vtkNew<vtkPoints> Points;
bool ExGetNodalVars();
vtkNew<vtkPointData> PointData;
bool ExGetElemBlocks();
vtkNew<vtkMultiBlockDataSet> ElementBlocks;
void ExClose();
int CurrentTimeStep;
};
VTK_ABI_NAMESPACE_END
#endif // vtkCPExodusIIInSituReader_h
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