/usr/include/citygml/tesselator.h is in libcitygml-dev 2.0.8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | /* -*-c++-*- libcitygml - Copyright (c) 2010 Joachim Pouderoux, BRGM
*
* This file is part of libcitygml library
* http://code.google.com/p/libcitygml
*
* libcitygml is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2.1 of the License, or
* (at your option) any later version.
*
* libcitygml is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*/
#ifndef __TESSELATOR_H__
#define __TESSELATOR_H__
#ifdef WIN32
# include <windows.h>
#else
# define CALLBACK
# define APIENTRY
#endif
#ifdef __APPLE__
#include <OpenGL/glu.h>
#else
#include <GL/glu.h>
#endif
#include <citygml/citygml_api.h>
#include <citygml/vecs.hpp>
#include <vector>
#include <list>
#include <memory>
namespace citygml {
class CityGMLLogger;
}
// GLU based polygon tesselator
class LIBCITYGML_EXPORT Tesselator
{
public:
Tesselator( std::shared_ptr<citygml::CityGMLLogger> logger );
~Tesselator();
void init(const TVec3d& normal, GLenum winding_rule = GLU_TESS_WINDING_ODD );
/**
* @brief Add a new contour - add the exterior ring first, then interiors
* @param textureCoordinatesLists a list of texture coordinates lists for the countour. Each list contains one texture coordinate for each vertex.
*/
void addContour(const std::vector<TVec3d>&, std::vector<std::vector<TVec2f> > textureCoordinatesLists);
// Let's tesselate!
void compute();
// Tesselation result access
const std::vector<TVec3d> getVertices() const;
const std::vector<std::vector<TVec2f> >& getTexCoords() const { return _texCoordsLists; }
const std::vector<unsigned int>& getIndices() const;
void setKeepVertices(bool val);
bool keepVertices() const;
private:
typedef void (APIENTRY *GLU_TESS_CALLBACK)();
static void CALLBACK beginCallback( GLenum, void* );
static void CALLBACK vertexDataCallback( GLvoid*, void* );
static void CALLBACK combineCallback( GLdouble[3], void* [4], GLfloat [4], void** , void* );
static void CALLBACK endCallback( void* );
static void CALLBACK errorCallback(GLenum, void*);
private:
GLUtesselator *_tobj;
GLenum _curMode;
std::list<TVec3d> _vertices;
std::vector<std::vector<TVec2f> > _texCoordsLists;
std::list<unsigned int> _indices;
std::vector<unsigned int> _outIndices;
std::vector<unsigned int> _curIndices;
std::shared_ptr<citygml::CityGMLLogger> _logger;
bool _keepVertices;
};
#endif // __TESSELATOR_H__
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