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73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkExternalOpenGLCamera.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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// .NAME vtkExternalOpenGLCamera - OpenGL camera
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// .SECTION Description
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// vtkExternalOpenGLCamera is a concrete implementation of the abstract class
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// vtkCamera. vtkExternalOpenGLCamera interfaces to the OpenGL rendering library.
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// This class extends vtkOpenGLCamera by introducing API wherein the camera
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// matrices can be set explicitly by the application.
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#ifndef vtkExternalOpenGLCamera_h
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#define vtkExternalOpenGLCamera_h
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#include "vtkRenderingExternalModule.h" // For export macro
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#include "vtkOpenGLCamera.h"
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class VTKRENDERINGEXTERNAL_EXPORT vtkExternalOpenGLCamera :
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public vtkOpenGLCamera
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{
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public:
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static vtkExternalOpenGLCamera *New();
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vtkTypeMacro(vtkExternalOpenGLCamera, vtkOpenGLCamera);
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virtual void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Implement base class method.
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void Render(vtkRenderer *ren);
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// Description:
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// Set the view transform matrix
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void SetViewTransformMatrix(const double elements[16]);
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// Description:
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// Set the projection matrix
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void SetProjectionTransformMatrix(const double elements[16]);
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protected:
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vtkExternalOpenGLCamera();
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~vtkExternalOpenGLCamera() {}
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// Description:
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// These methods should only be used within vtkCamera.cxx.
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// Bypass computation if user provided the projection transform
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void ComputeProjectionTransform(double aspect,
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double nearz,
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double farz);
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// Description:
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// These methods should only be used within vtkCamera.cxx.
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// Bypass computation if user provided the view transform
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void ComputeViewTransform();
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private:
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bool UserProvidedProjectionTransform;
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bool UserProvidedViewTransform;
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vtkExternalOpenGLCamera(const vtkExternalOpenGLCamera&); // Not implemented.
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void operator=(const vtkExternalOpenGLCamera&); // Not implemented.
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};
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#endif
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