vtkProjectedTexture.h

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

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

  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.

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

#include "vtkDataSetAlgorithm.h"

#define VTK_PROJECTED_TEXTURE_USE_PINHOLE 0
#define VTK_PROJECTED_TEXTURE_USE_TWO_MIRRORS 1

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


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


  void SetFocalPoint(double focalPoint[3]);
  void SetFocalPoint(double x, double y, double z);
  vtkGetVectorMacro(FocalPoint,double,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, double);
  vtkGetMacro(MirrorSeparation, double);


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


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


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

  int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
  void ComputeNormal();

  int CameraMode;

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

#endif

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