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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkOFFReader
* @brief read Geomview .off files
*
* vtkOFFReader is a source object that reads Object File Format .off
* files. The output of this source object is polygonal data.
*
* Please note that this is a very simple reader class that only
* supports the standard 'OFF' format with 3 vertex coordinates.
* The maximum number of vertices per face has been limited to 100
* to simplify error handling. The optional color specification of
* the polygons is ignored by this reader.
*
* The original documentation of the OFF file format can be found here:
* @sa http://www.geomview.org/docs/html/OFF.html
*
* \author Peter Zajac (TU Dortmund)
*/
#ifndef vtkOFFReader_h
#define vtkOFFReader_h
#include "vtkAbstractPolyDataReader.h"
#include "vtkIOGeometryModule.h" // For export macro
#include "vtkResourceStream.h" // For vtkResourceStream
VTK_ABI_NAMESPACE_BEGIN
class VTKIOGEOMETRY_EXPORT vtkOFFReader : public vtkAbstractPolyDataReader
{
public:
static vtkOFFReader* New();
vtkTypeMacro(vtkOFFReader, vtkAbstractPolyDataReader);
/**
* Set the resource stream to use when reading
*/
vtkSetSmartPointerMacro(Stream, vtkResourceStream);
/**
* Get the resource stream to use when reading
*/
vtkGetSmartPointerMacro(Stream, vtkResourceStream);
protected:
vtkOFFReader() = default;
~vtkOFFReader() override = default;
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
private:
/**
* The resource stream to use when reading
*/
vtkSmartPointer<vtkResourceStream> Stream;
/**
* @brief Returns the resource stream to read from
*
* If this->Stream is set, then that Stream object will be returned,
* otherwise a file stream will be created for the file at this->FileName
* and that file stream will be returned instead.
*/
vtkSmartPointer<vtkResourceStream> Open();
vtkOFFReader(const vtkOFFReader&) = delete;
void operator=(const vtkOFFReader&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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