Graphics/vtkProjectedTexture.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkProjectedTexture.h,v $
  Language:  C++

  Copyright (c) 1993-2002 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.

=========================================================================*/
#ifndef __vtkProjectedTexture_h
#define __vtkProjectedTexture_h

#include "vtkDataSetToDataSetFilter.h"

#define VTK_PROJECTED_TEXTURE_USE_PINHOLE 0
#define VTK_PROJECTED_TEXTURE_USE_TWO_MIRRORS 1

class VTK_GRAPHICS_EXPORT vtkProjectedTexture : public vtkDataSetToDataSetFilter 
{
public:
  static vtkProjectedTexture *New();
  vtkTypeRevisionMacro(vtkProjectedTexture,vtkDataSetToDataSetFilter);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkSetVector3Macro(Position,float);
  vtkGetVectorMacro(Position,float,3);


  void SetFocalPoint(float focalPoint[3]);
  void SetFocalPoint(float x, float y, float z);
  vtkGetVectorMacro(FocalPoint,float,3);


  vtkSetMacro(CameraMode, int);
  vtkGetMacro(CameraMode, int);
  void SetCameraModeToPinhole() {this->SetCameraMode(VTK_PROJECTED_TEXTURE_USE_PINHOLE);}
  void SetCameraModeToTwoMirror() {this->SetCameraMode(VTK_PROJECTED_TEXTURE_USE_TWO_MIRRORS);}


  vtkSetMacro(MirrorSeparation, float);
  vtkGetMacro(MirrorSeparation, float);


  vtkGetVectorMacro(Orientation,float,3);
  
  // Set/Get the up vector of the projector.
  vtkSetVector3Macro(Up,float);
  vtkGetVectorMacro(Up,float,3);

  // Set/Get the aspect ratio of a perpendicular cross-section of the
  // the projector's frustum.  The aspect ratio consists of three 
  // numbers:  (x, y, z), where x is the width of the 
  // frustum, y is the height, and z is the perpendicular
  // distance from the focus of the projector.
  vtkSetVector3Macro(AspectRatio,float);
  vtkGetVectorMacro(AspectRatio,float,3);


  vtkSetVector2Macro(SRange,float);
  vtkGetVectorMacro(SRange,float,2);


  vtkSetVector2Macro(TRange,float);
  vtkGetVectorMacro(TRange,float,2);
  
protected:
  vtkProjectedTexture();
  ~vtkProjectedTexture() {};

  void Execute();
  void ComputeNormal();

  int CameraMode;

  float Position[3];
  float Orientation[3];
  float FocalPoint[3];
  float Up[3];
  float MirrorSeparation;
  float AspectRatio[3];
  float SRange[2];
  float TRange[2];
private:
  vtkProjectedTexture(const vtkProjectedTexture&);  // Not implemented.
  void operator=(const vtkProjectedTexture&);  // Not implemented.
};

#endif

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