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118 lines
4.2 KiB
118 lines
4.2 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkProjectedTexture.h,v $
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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 vtkProjectedTexture - assign texture coordinates for a projected texture
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// .SECTION Description
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// vtkProjectedTexture assigns texture coordinates to a dataset as if
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// the texture was projected from a slide projected located somewhere in the
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// scene. Methods are provided to position the projector and aim it at a
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// location, to set the width of the projector's frustum, and to set the
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// range of texture coordinates assigned to the dataset.
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//
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// Objects in the scene that appear behind the projector are also assigned
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// texture coordinates; the projected image is left-right and top-bottom
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// flipped, much as a lens' focus flips the rays of light that pass through
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// it. A warning is issued if a point in the dataset falls at the focus
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// of the projector.
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#ifndef __vtkProjectedTexture_h
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#define __vtkProjectedTexture_h
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#include "vtkDataSetAlgorithm.h"
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#define VTK_PROJECTED_TEXTURE_USE_PINHOLE 0
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#define VTK_PROJECTED_TEXTURE_USE_TWO_MIRRORS 1
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class VTK_GRAPHICS_EXPORT vtkProjectedTexture : public vtkDataSetAlgorithm
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{
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public:
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static vtkProjectedTexture *New();
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vtkTypeRevisionMacro(vtkProjectedTexture,vtkDataSetAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Set/Get the position of the focus of the projector.
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vtkSetVector3Macro(Position,double);
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vtkGetVectorMacro(Position,double,3);
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// Description:
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// Set/Get the focal point of the projector (a point that lies along
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// the center axis of the projector's frustum).
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void SetFocalPoint(double focalPoint[3]);
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void SetFocalPoint(double x, double y, double z);
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vtkGetVectorMacro(FocalPoint,double,3);
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// Description:
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// Set/Get the camera mode of the projection -- pinhole projection or
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// two mirror projection.
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vtkSetMacro(CameraMode, int);
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vtkGetMacro(CameraMode, int);
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void SetCameraModeToPinhole() {this->SetCameraMode(VTK_PROJECTED_TEXTURE_USE_PINHOLE);}
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void SetCameraModeToTwoMirror() {this->SetCameraMode(VTK_PROJECTED_TEXTURE_USE_TWO_MIRRORS);}
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// Description:
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// Set/Get the mirror separation for the two mirror system.
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vtkSetMacro(MirrorSeparation, double);
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vtkGetMacro(MirrorSeparation, double);
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// Description:
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// Get the normalized orientation vector of the projector.
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vtkGetVectorMacro(Orientation,double,3);
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// Set/Get the up vector of the projector.
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vtkSetVector3Macro(Up,double);
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vtkGetVectorMacro(Up,double,3);
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// Set/Get the aspect ratio of a perpendicular cross-section of the
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// the projector's frustum. The aspect ratio consists of three
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// numbers: (x, y, z), where x is the width of the
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// frustum, y is the height, and z is the perpendicular
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// distance from the focus of the projector.
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vtkSetVector3Macro(AspectRatio,double);
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vtkGetVectorMacro(AspectRatio,double,3);
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// Description:
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// Specify s-coordinate range for texture s-t coordinate pair.
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vtkSetVector2Macro(SRange,double);
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vtkGetVectorMacro(SRange,double,2);
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// Description:
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// Specify t-coordinate range for texture s-t coordinate pair.
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vtkSetVector2Macro(TRange,double);
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vtkGetVectorMacro(TRange,double,2);
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protected:
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vtkProjectedTexture();
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~vtkProjectedTexture() {};
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int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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void ComputeNormal();
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int CameraMode;
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double Position[3];
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double Orientation[3];
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double FocalPoint[3];
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double Up[3];
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double MirrorSeparation;
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double AspectRatio[3];
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double SRange[2];
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double TRange[2];
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private:
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vtkProjectedTexture(const vtkProjectedTexture&); // Not implemented.
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void operator=(const vtkProjectedTexture&); // Not implemented.
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};
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#endif
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