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/*=========================================================================
Program: Visualization Toolkit
Module: vtkRendererSource.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.
=========================================================================*/
// .NAME vtkRendererSource - take a renderer into the pipeline
// .SECTION Description
// vtkRendererSource is a source object that gets its input from a
// renderer and converts it to structured points. This can then be
// used in a visualization pipeline. You must explicitly send a
// Modify() to this object to get it to reload its data from the
// renderer. Consider using vtkWindowToImageFilter instead of this
// class.
//
// The data placed into the output is the renderer's image rgb values.
// Optionally, you can also grab the image depth (e.g., z-buffer) values, and
// place then into the output (point) field data.
// .SECTION see also
// vtkWindowToImageFilter vtkRenderer vtkStructuredPoints
#ifndef vtkRendererSource_h
#define vtkRendererSource_h
#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkAlgorithm.h"
#include "vtkImageData.h" // makes things a bit easier
class vtkRenderer;
class VTKRENDERINGCORE_EXPORT vtkRendererSource : public vtkAlgorithm
{
public:
static vtkRendererSource *New();
vtkTypeMacro(vtkRendererSource, vtkAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Return the MTime also considering the Renderer.
unsigned long GetMTime();
// Description:
// Indicates what renderer to get the pixel data from.
void SetInput(vtkRenderer*);
// Description:
// Returns which renderer is being used as the source for the pixel data.
vtkGetObjectMacro(Input, vtkRenderer);
// Description:
// Use the entire RenderWindow as a data source or just the Renderer.
// The default is zero, just the Renderer.
vtkSetMacro(WholeWindow, int);
vtkGetMacro(WholeWindow, int);
vtkBooleanMacro(WholeWindow, int);
// Description:
// If this flag is on, the Executing causes a render first.
vtkSetMacro(RenderFlag, int);
vtkGetMacro(RenderFlag, int);
vtkBooleanMacro(RenderFlag, int);
// Description:
// A boolean value to control whether to grab z-buffer
// (i.e., depth values) along with the image data. The z-buffer data
// is placed into a field data attributes named "ZBuffer" .
vtkSetMacro(DepthValues, int);
vtkGetMacro(DepthValues, int);
vtkBooleanMacro(DepthValues, int);
// Description:
// A boolean value to control whether to grab z-buffer
// (i.e., depth values) along with the image data. The z-buffer data
// is placed in the scalars as a fourth Z component (shift and scaled
// to map the full 0..255 range).
vtkSetMacro(DepthValuesInScalars, int);
vtkGetMacro(DepthValuesInScalars, int);
vtkBooleanMacro(DepthValuesInScalars, int);
// Description:
// Get the output data object for a port on this algorithm.
vtkImageData* GetOutput();
// Description:
// see vtkAlgorithm for details
virtual int ProcessRequest(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
protected:
vtkRendererSource();
~vtkRendererSource();
void RequestData(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector);
virtual void RequestInformation (vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
vtkRenderer *Input;
int WholeWindow;
int RenderFlag;
int DepthValues;
int DepthValuesInScalars;
// see algorithm for more info
virtual int FillOutputPortInformation(int port, vtkInformation* info);
private:
vtkRendererSource(const vtkRendererSource&); // Not implemented.
void operator=(const vtkRendererSource&); // Not implemented.
};
#endif
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