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/*=========================================================================
Program: Visualization Toolkit
Module: vtkGenericDataObjectReader.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 vtkGenericDataObjectReader
* @brief class to read any type of vtk data object
*
* vtkGenericDataObjectReader is a class that provides instance variables and methods
* to read any type of data object in Visualization Toolkit (vtk) format. The
* output type of this class will vary depending upon the type of data
* file. Convenience methods are provided to return the data as a particular
* type. (See text for format description details).
* The superclass of this class, vtkDataReader, provides many methods for
* controlling the reading of the data file, see vtkDataReader for more
* information.
* @warning
* Binary files written on one system may not be readable on other systems.
* @sa
* vtkDataReader vtkGraphReader vtkPolyDataReader vtkRectilinearGridReader
* vtkStructuredPointsReader vtkStructuredGridReader vtkTableReader
* vtkTreeReader vtkUnstructuredGridReader
*/
#ifndef vtkGenericDataObjectReader_h
#define vtkGenericDataObjectReader_h
#include "vtkIOLegacyModule.h" // For export macro
#include "vtkDataReader.h"
class vtkDataObject;
class vtkGraph;
class vtkMolecule;
class vtkPolyData;
class vtkRectilinearGrid;
class vtkStructuredGrid;
class vtkStructuredPoints;
class vtkTable;
class vtkTree;
class vtkUnstructuredGrid;
class VTKIOLEGACY_EXPORT vtkGenericDataObjectReader : public vtkDataReader
{
public:
static vtkGenericDataObjectReader *New();
vtkTypeMacro(vtkGenericDataObjectReader,vtkDataReader);
void PrintSelf(ostream& os, vtkIndent indent);
//@{
/**
* Get the output of this filter
*/
vtkDataObject *GetOutput();
vtkDataObject *GetOutput(int idx);
//@}
//@{
/**
* Get the output as various concrete types. This method is typically used
* when you know exactly what type of data is being read. Otherwise, use
* the general GetOutput() method. If the wrong type is used NULL is
* returned. (You must also set the filename of the object prior to
* getting the output.)
*/
vtkGraph *GetGraphOutput();
vtkMolecule *GetMoleculeOutput();
vtkPolyData *GetPolyDataOutput();
vtkRectilinearGrid *GetRectilinearGridOutput();
vtkStructuredGrid *GetStructuredGridOutput();
vtkStructuredPoints *GetStructuredPointsOutput();
vtkTable *GetTableOutput();
vtkTree *GetTreeOutput();
vtkUnstructuredGrid *GetUnstructuredGridOutput();
//@}
/**
* This method can be used to find out the type of output expected without
* needing to read the whole file.
*/
virtual int ReadOutputType();
/**
* See vtkAlgorithm for information.
*/
virtual int ProcessRequest(vtkInformation *, vtkInformationVector **,
vtkInformationVector *);
protected:
vtkGenericDataObjectReader();
~vtkGenericDataObjectReader();
virtual int RequestData(vtkInformation *, vtkInformationVector **,
vtkInformationVector *);
virtual int RequestDataObject(vtkInformation *, vtkInformationVector **,
vtkInformationVector *);
virtual int FillOutputPortInformation(int, vtkInformation *);
virtual int RequestInformation(vtkInformation *, vtkInformationVector **,
vtkInformationVector *);
private:
vtkGenericDataObjectReader(const vtkGenericDataObjectReader&) VTK_DELETE_FUNCTION;
void operator=(const vtkGenericDataObjectReader&) VTK_DELETE_FUNCTION;
template<typename ReaderT, typename DataT>
void ReadData(const char* dataClass, vtkDataObject* output);
vtkSetStringMacro(Header);
};
#endif
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