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vtkExternalOpenGLCamera.h
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vtkExternalOpenGLCamera.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkExternalOpenGLCamera.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 vtkExternalOpenGLCamera
* @brief OpenGL camera
*
* vtkExternalOpenGLCamera is a concrete implementation of the abstract class
* vtkCamera. vtkExternalOpenGLCamera interfaces to the OpenGL rendering library.
* This class extends vtkOpenGLCamera by introducing API wherein the camera
* matrices can be set explicitly by the application.
*/
#ifndef vtkExternalOpenGLCamera_h
#define vtkExternalOpenGLCamera_h
#include "vtkRenderingExternalModule.h" // For export macro
#include "vtkOpenGLCamera.h"
class VTKRENDERINGEXTERNAL_EXPORT vtkExternalOpenGLCamera :
public vtkOpenGLCamera
{
public:
static vtkExternalOpenGLCamera *New();
vtkTypeMacro(vtkExternalOpenGLCamera, vtkOpenGLCamera);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
/**
* Implement base class method.
*/
void Render(vtkRenderer *ren);
/**
* Set the view transform matrix
*/
void SetViewTransformMatrix(const double elements[16]);
/**
* Set the projection matrix
*/
void SetProjectionTransformMatrix(const double elements[16]);
protected:
vtkExternalOpenGLCamera();
~vtkExternalOpenGLCamera() {}
/**
* These methods should only be used within vtkCamera.cxx.
* Bypass computation if user provided the projection transform
*/
void ComputeProjectionTransform(double aspect,
double nearz,
double farz);
/**
* These methods should only be used within vtkCamera.cxx.
* Bypass computation if user provided the view transform
*/
void ComputeViewTransform();
private:
bool UserProvidedProjectionTransform;
bool UserProvidedViewTransform;
vtkExternalOpenGLCamera(const vtkExternalOpenGLCamera&) VTK_DELETE_FUNCTION;
void operator=(const vtkExternalOpenGLCamera&) VTK_DELETE_FUNCTION;
};
#endif