You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

107 lines
3.3 KiB
C

/*=========================================================================
Program: Visualization Toolkit
Module: vtkDataSetReader.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 vtkDataSetReader
* @brief class to read any type of vtk dataset
*
* vtkDataSetReader is a class that provides instance variables and methods
* to read any type of dataset 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 keep 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 vtkPolyDataReader vtkRectilinearGridReader
* vtkStructuredPointsReader vtkStructuredGridReader vtkUnstructuredGridReader
*/
#ifndef vtkDataSetReader_h
#define vtkDataSetReader_h
#include "vtkDataReader.h"
#include "vtkIOLegacyModule.h" // For export macro
class vtkDataSet;
class vtkPolyData;
class vtkRectilinearGrid;
class vtkStructuredGrid;
class vtkStructuredPoints;
class vtkUnstructuredGrid;
class VTKIOLEGACY_EXPORT vtkDataSetReader : public vtkDataReader
{
public:
static vtkDataSetReader* New();
vtkTypeMacro(vtkDataSetReader, vtkDataReader);
void PrintSelf(ostream& os, vtkIndent indent) override;
//@{
/**
* Get the output of this filter
*/
vtkDataSet* GetOutput();
vtkDataSet* 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 nullptr is
* returned. (You must also set the filename of the object prior to
* getting the output.)
*/
vtkPolyData* GetPolyDataOutput();
vtkStructuredPoints* GetStructuredPointsOutput();
vtkStructuredGrid* GetStructuredGridOutput();
vtkUnstructuredGrid* GetUnstructuredGridOutput();
vtkRectilinearGrid* GetRectilinearGridOutput();
//@}
/**
* This method can be used to find out the type of output expected without
* needing to read the whole file.
*/
virtual int ReadOutputType();
/**
* Read metadata from file.
*/
int ReadMetaDataSimple(const std::string& fname, vtkInformation* metadata) override;
/**
* Actual reading happens here
*/
int ReadMeshSimple(const std::string& fname, vtkDataObject* output) override;
protected:
vtkDataSetReader();
~vtkDataSetReader() override;
vtkDataObject* CreateOutput(vtkDataObject* currentOutput) override;
int FillOutputPortInformation(int, vtkInformation*) override;
private:
vtkDataSetReader(const vtkDataSetReader&) = delete;
void operator=(const vtkDataSetReader&) = delete;
};
#endif