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121 lines
3.8 KiB
C++
121 lines
3.8 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkGenericDataObjectReader.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkGenericDataObjectReader
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* @brief class to read any type of vtk data object
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*
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* vtkGenericDataObjectReader is a class that provides instance variables and methods
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* to read any type of data object in Visualization Toolkit (vtk) format. The
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* output type of this class will vary depending upon the type of data
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* file. Convenience methods are provided to return the data as a particular
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* type. (See text for format description details).
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* The superclass of this class, vtkDataReader, provides many methods for
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* controlling the reading of the data file, see vtkDataReader for more
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* information.
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* @warning
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* Binary files written on one system may not be readable on other systems.
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* @sa
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* vtkDataReader vtkGraphReader vtkPolyDataReader vtkRectilinearGridReader
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* vtkStructuredPointsReader vtkStructuredGridReader vtkTableReader
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* vtkTreeReader vtkUnstructuredGridReader
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*/
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#ifndef vtkGenericDataObjectReader_h
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#define vtkGenericDataObjectReader_h
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#include "vtkDataReader.h"
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#include "vtkIOLegacyModule.h" // For export macro
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class vtkDataObject;
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class vtkGraph;
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class vtkMolecule;
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class vtkPolyData;
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class vtkRectilinearGrid;
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class vtkStructuredGrid;
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class vtkStructuredPoints;
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class vtkTable;
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class vtkTree;
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class vtkUnstructuredGrid;
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class VTKIOLEGACY_EXPORT vtkGenericDataObjectReader : public vtkDataReader
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{
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public:
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static vtkGenericDataObjectReader* New();
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vtkTypeMacro(vtkGenericDataObjectReader, vtkDataReader);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Get the output of this filter
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*/
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vtkDataObject* GetOutput();
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vtkDataObject* GetOutput(int idx);
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//@}
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//@{
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/**
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* Get the output as various concrete types. This method is typically used
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* when you know exactly what type of data is being read. Otherwise, use
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* the general GetOutput() method. If the wrong type is used nullptr is
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* returned. (You must also set the filename of the object prior to
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* getting the output.)
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*/
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vtkGraph* GetGraphOutput();
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vtkMolecule* GetMoleculeOutput();
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vtkPolyData* GetPolyDataOutput();
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vtkRectilinearGrid* GetRectilinearGridOutput();
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vtkStructuredGrid* GetStructuredGridOutput();
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vtkStructuredPoints* GetStructuredPointsOutput();
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vtkTable* GetTableOutput();
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vtkTree* GetTreeOutput();
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vtkUnstructuredGrid* GetUnstructuredGridOutput();
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//@}
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/**
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* This method can be used to find out the type of output expected without
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* needing to read the whole file.
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*/
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virtual int ReadOutputType();
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/**
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* Read metadata from file.
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*/
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int ReadMetaDataSimple(const std::string& fname, vtkInformation* metadata) override;
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/**
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* Actual reading happens here
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*/
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int ReadMeshSimple(const std::string& fname, vtkDataObject* output) override;
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protected:
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vtkGenericDataObjectReader();
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~vtkGenericDataObjectReader() override;
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vtkDataObject* CreateOutput(vtkDataObject* currentOutput) override;
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int FillOutputPortInformation(int, vtkInformation*) override;
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private:
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vtkGenericDataObjectReader(const vtkGenericDataObjectReader&) = delete;
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void operator=(const vtkGenericDataObjectReader&) = delete;
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template <typename ReaderT, typename DataT>
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void ReadData(const char* fname, const char* dataClass, vtkDataObject* output);
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vtkSetStringMacro(Header);
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};
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#endif
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