100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkRenderLargeImage.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 vtkRenderLargeImage
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* @brief Use tiling to generate a large rendering
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*
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* vtkRenderLargeImage provides methods needed to read a region from a file.
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*/
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#ifndef vtkRenderLargeImage_h
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#define vtkRenderLargeImage_h
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#include "vtkAlgorithm.h"
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#include "vtkFiltersHybridModule.h" // For export macro
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#include "vtkImageData.h" // makes things a bit easier
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class vtkRenderer;
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class vtkActor2DCollection;
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class vtkCollection;
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class vtkRenderLargeImage2DHelperClass;
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class VTKFILTERSHYBRID_EXPORT vtkRenderLargeImage : public vtkAlgorithm
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{
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public:
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static vtkRenderLargeImage* New();
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vtkTypeMacro(vtkRenderLargeImage, vtkAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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///@{
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/**
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* The magnification of the current render window
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*/
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vtkSetMacro(Magnification, int);
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vtkGetMacro(Magnification, int);
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///@}
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/**
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* Indicates what renderer to get the pixel data from.
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*/
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virtual void SetInput(vtkRenderer*);
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///@{
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/**
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* Returns which renderer is being used as the source for the pixel data.
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*/
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vtkGetObjectMacro(Input, vtkRenderer);
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///@}
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/**
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* Get the output data object for a port on this algorithm.
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*/
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vtkImageData* GetOutput();
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/**
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* see vtkAlgorithm for details
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*/
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vtkTypeBool ProcessRequest(
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vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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protected:
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vtkRenderLargeImage();
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~vtkRenderLargeImage() override;
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int Magnification;
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vtkRenderer* Input;
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void RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*);
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void RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*);
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// see algorithm for more info
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int FillOutputPortInformation(int port, vtkInformation* info) override;
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// Adjust the coordinates of all 2D actors to fit new window size
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void Rescale2DActors();
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// Shift each actor according to the tile we are rendering
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void Shift2DActors(int x, int y);
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// put them all back to their previous state when finished.
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void Restore2DActors();
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// 2D Actors need to be rescaled and shifted about for each tile
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// use this helper class to make life easier.
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vtkRenderLargeImage2DHelperClass* StoredData;
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private:
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vtkRenderLargeImage(const vtkRenderLargeImage&) = delete;
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void operator=(const vtkRenderLargeImage&) = delete;
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};
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#endif
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