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57 lines
2.1 KiB
C++
57 lines
2.1 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkTriangularTCoords.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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/**
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* @class vtkTriangularTCoords
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* @brief 2D texture coordinates based for triangles.
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*
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* vtkTriangularTCoords is a filter that generates texture coordinates
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* for triangles. Texture coordinates for each triangle are:
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* (0,0), (1,0) and (.5,sqrt(3)/2). This filter assumes that the triangle
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* texture map is symmetric about the center of the triangle. Thus the order
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* Of the texture coordinates is not important. The procedural texture
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* in vtkTriangularTexture is designed with this symmetry. For more information
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* see the paper "Opacity-modulating Triangular Textures for Irregular
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* Surfaces," by Penny Rheingans, IEEE Visualization '96, pp. 219-225.
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* @sa
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* vtkTriangularTexture vtkThresholdPoints vtkTextureMapToPlane
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* vtkTextureMapToSphere vtkTextureMapToCylinder
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*/
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#ifndef vtkTriangularTCoords_h
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#define vtkTriangularTCoords_h
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#include "vtkFiltersTextureModule.h" // For export macro
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#include "vtkPolyDataAlgorithm.h"
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class VTKFILTERSTEXTURE_EXPORT vtkTriangularTCoords : public vtkPolyDataAlgorithm
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{
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public:
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static vtkTriangularTCoords *New();
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vtkTypeMacro(vtkTriangularTCoords,vtkPolyDataAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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protected:
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vtkTriangularTCoords() {}
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~vtkTriangularTCoords() {}
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// Usual data generation method
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int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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private:
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vtkTriangularTCoords(const vtkTriangularTCoords&) VTK_DELETE_FUNCTION;
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void operator=(const vtkTriangularTCoords&) VTK_DELETE_FUNCTION;
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};
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#endif
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