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86 lines
2.7 KiB
86 lines
2.7 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkTriangularTexture.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 vtkTriangularTexture - generate 2D triangular texture map
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// .SECTION Description
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// vtkTriangularTexture is a filter that generates a 2D texture map based on
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// the paper "Opacity-modulating Triangular Textures for Irregular Surfaces,"
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// by Penny Rheingans, IEEE Visualization '96, pp. 219-225.
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// The textures assume texture coordinates of (0,0), (1.0) and
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// (.5, sqrt(3)/2). The sequence of texture values is the same along each
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// edge of the triangular texture map. So, the assignment order of texture
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// coordinates is arbitrary.
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// .SECTION See Also
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// vtkTriangularTCoords
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#ifndef __vtkTriangularTexture_h
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#define __vtkTriangularTexture_h
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#include "vtkImageAlgorithm.h"
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class VTK_IMAGING_EXPORT vtkTriangularTexture : public vtkImageAlgorithm
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{
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public:
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vtkTypeRevisionMacro(vtkTriangularTexture,vtkImageAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Instantiate object with XSize and YSize = 64; the texture pattern =1
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// (opaque at centroid); and the scale factor set to 1.0.
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static vtkTriangularTexture *New();
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// Description:
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// Set a Scale Factor.
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vtkSetMacro(ScaleFactor,double);
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vtkGetMacro(ScaleFactor,double);
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// Description:
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// Set the X texture map dimension. Default is 64.
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vtkSetMacro(XSize,int);
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vtkGetMacro(XSize,int);
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// Description:
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// Set the Y texture map dimension. Default is 64.
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vtkSetMacro(YSize,int);
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vtkGetMacro(YSize,int);
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// Description:
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// Set the texture pattern.
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// 1 = opaque at centroid (default)
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// 2 = opaque at vertices
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// 3 = opaque in rings around vertices
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vtkSetClampMacro(TexturePattern,int,1,3);
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vtkGetMacro(TexturePattern,int);
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protected:
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vtkTriangularTexture();
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~vtkTriangularTexture() {};
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virtual int RequestInformation (vtkInformation *, vtkInformationVector**, vtkInformationVector *);
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virtual void ExecuteData(vtkDataObject *data);
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int XSize;
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int YSize;
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double ScaleFactor;
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int TexturePattern;
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private:
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vtkTriangularTexture(const vtkTriangularTexture&); // Not implemented.
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void operator=(const vtkTriangularTexture&); // Not implemented.
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};
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#endif
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