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91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkPolyDataStreamer.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 vtkPolyDataStreamer
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* @brief Streamer appends input pieces to the output.
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*
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* vtkPolyDataStreamer initiates streaming by requesting pieces from its
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* single input it appends these pieces to the requested output.
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* Note that since vtkPolyDataStreamer uses an append filter, all the
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* polygons generated have to be kept in memory before rendering. If
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* these do not fit in the memory, it is possible to make the vtkPolyDataMapper
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* stream. Since the mapper will render each piece separately, all the
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* polygons do not have to stored in memory.
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* @attention
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* The output may be slightly different if the pipeline does not handle
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* ghost cells properly (i.e. you might see seames between the pieces).
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* @sa
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* vtkAppendFilter
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*/
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#ifndef vtkPolyDataStreamer_h
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#define vtkPolyDataStreamer_h
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#include "vtkFiltersGeneralModule.h" // For export macro
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#include "vtkStreamerBase.h"
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class vtkAppendPolyData;
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class VTKFILTERSGENERAL_EXPORT vtkPolyDataStreamer : public vtkStreamerBase
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{
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public:
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static vtkPolyDataStreamer* New();
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vtkTypeMacro(vtkPolyDataStreamer, vtkStreamerBase);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Set the number of pieces to divide the problem into.
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*/
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void SetNumberOfStreamDivisions(int num);
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int GetNumberOfStreamDivisions() { return this->NumberOfPasses; }
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//@}
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//@{
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/**
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* By default, this option is off. When it is on, cell scalars are generated
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* based on which piece they are in.
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*/
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vtkSetMacro(ColorByPiece, vtkTypeBool);
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vtkGetMacro(ColorByPiece, vtkTypeBool);
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vtkBooleanMacro(ColorByPiece, vtkTypeBool);
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//@}
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protected:
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vtkPolyDataStreamer();
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~vtkPolyDataStreamer() override;
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// see algorithm for more info
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int FillOutputPortInformation(int port, vtkInformation* info) override;
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int FillInputPortInformation(int port, vtkInformation* info) override;
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int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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int ExecutePass(vtkInformationVector** inputVector, vtkInformationVector* outputVector) override;
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int PostExecute(vtkInformationVector** inputVector, vtkInformationVector* outputVector) override;
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vtkTypeBool ColorByPiece;
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private:
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vtkPolyDataStreamer(const vtkPolyDataStreamer&) = delete;
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void operator=(const vtkPolyDataStreamer&) = delete;
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vtkAppendPolyData* Append;
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};
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#endif
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