/usr/include/SFCGAL/io/vtk.h is in libsfcgal-dev 1.2.2-1.
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 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | /**
* SFCGAL
*
* Copyright (C) 2012-2013 Oslandia <infos@oslandia.com>
* Copyright (C) 2012-2013 IGN (http://www.ign.fr)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SFCGAL_IO_VTK_H_
#define _SFCGAL_IO_VTK_H_
#include <iostream>
#include <fstream>
#include <sstream>
#include <SFCGAL/Point.h>
#include <SFCGAL/LineString.h>
#include <SFCGAL/Polygon.h>
#include <SFCGAL/Triangle.h>
#include <SFCGAL/PolyhedralSurface.h>
#include <SFCGAL/TriangulatedSurface.h>
#include <SFCGAL/Solid.h>
#include <SFCGAL/GeometryCollection.h>
#include <SFCGAL/MultiPoint.h>
#include <SFCGAL/MultiLineString.h>
#include <SFCGAL/MultiPolygon.h>
#include <SFCGAL/MultiSolid.h>
using namespace SFCGAL ;
namespace SFCGAL {
namespace io {
// print each ring has a different polygon
inline
void vtk( const Polygon& poly, const std::string& file )
{
std::stringstream pointStr;
std::stringstream polyStr;
size_t numPoints=0;
size_t numData=0;
for ( size_t r=0; r!=poly.numRings(); ++r ) {
polyStr << poly.ringN( r ).numPoints();
for ( size_t p=0; p!=poly.ringN( r ).numPoints(); ++p ) {
pointStr << poly.ringN( r ).pointN( p ).x() << " " << poly.ringN( r ).pointN( p ).y() << " " << poly.ringN( r ).pointN( p ).z() << "\n";
polyStr << " " << numPoints;
++numPoints;
++numData;
}
++numData;
polyStr << "\n";
}
std::ofstream out( file.c_str() );
out << "# vtk DataFile Version 1.0\n"
<< "Polygon output\n"
<< "ASCII\n"
<< "\n"
<< "DATASET POLYDATA\n"
<< "POINTS " << numPoints << " float\n"
<< pointStr.str()
<< "POLYGONS " << poly.numRings() << " " << numData << "\n"
<< polyStr.str();
}
template< typename MultiPolygonOrPolyhedraSurface >
void vtk( const MultiPolygonOrPolyhedraSurface& multiPoly, const std::string& file )
{
std::stringstream pointStr;
std::stringstream polyStr;
size_t numPoints=0;
size_t numRings=0;
size_t numData=0;
for ( size_t i=0; i!=multiPoly.numGeometries(); ++i ) {
const Polygon& poly = multiPoly.polygonN( i );
for ( size_t r=0; r!=poly.numRings(); ++r ) {
polyStr << poly.ringN( r ).numPoints();
for ( size_t p=0; p!=poly.ringN( r ).numPoints(); ++p ) {
pointStr << poly.ringN( r ).pointN( p ).x() << " " << poly.ringN( r ).pointN( p ).y() << " " << poly.ringN( r ).pointN( p ).z() << "\n";
polyStr << " " << numPoints;
++numPoints;
++numData;
}
++numData;
++numRings;
polyStr << "\n";
}
}
std::ofstream out( file.c_str() );
out << "# vtk DataFile Version 1.0\n"
<< "Polygon output\n"
<< "ASCII\n"
<< "\n"
<< "DATASET POLYDATA\n"
<< "POINTS " << numPoints << " float\n"
<< pointStr.str()
<< "POLYGONS " << numRings << " " << numData << "\n"
<< polyStr.str();
}
inline
void vtk( const Triangle& tri, const std::string& file )
{
vtk( tri.toPolygon(), file );
}
inline
void vtk( const TriangulatedSurface& s, const std::string& file )
{
std::stringstream pointStr;
std::stringstream polyStr;
size_t numPoints=0;
size_t numTri=0;
size_t numData=0;
for ( size_t i=0; i!=s.numTriangles(); ++i ) {
const Triangle& tri = s.triangleN( i );
polyStr << 3;
for ( size_t p=0; p!=3; ++p ) {
pointStr << tri.vertex( p ).x() << " " << tri.vertex( p ).y() << " " << tri.vertex( p ).z() << "\n";
polyStr << " " << numPoints;
++numPoints;
++numData;
}
++numData;
++numTri;
polyStr << "\n";
}
std::ofstream out( file.c_str() );
out << "# vtk DataFile Version 1.0\n"
<< "Polygon output\n"
<< "ASCII\n"
<< "\n"
<< "DATASET POLYDATA\n"
<< "POINTS " << numPoints << " float\n"
<< pointStr.str()
<< "POLYGONS " << numTri << " " << numData << "\n"
<< polyStr.str();
}
inline
void vtk( const Geometry& g, const std::string& file )
{
switch ( g.geometryTypeId() ) {
case TYPE_POLYGON:
vtk( g.as<Polygon>(), file ) ;
return ;
case TYPE_MULTIPOLYGON:
vtk( g.as<MultiPolygon>(), file ) ;
return ;
case TYPE_TRIANGLE:
vtk( g.as<Triangle>(), file ) ;
return ;
case TYPE_TRIANGULATEDSURFACE:
vtk( g.as<TriangulatedSurface>(), file ) ;
return ;
case TYPE_POLYHEDRALSURFACE:
vtk( g.as<PolyhedralSurface>(), file ) ;
return ;
case TYPE_SOLID:
vtk( g.as<Solid>().exteriorShell(), file ) ;
return ;
case TYPE_POINT:
case TYPE_LINESTRING:
case TYPE_MULTIPOINT:
case TYPE_MULTILINESTRING:
case TYPE_MULTISOLID:
case TYPE_GEOMETRYCOLLECTION:
BOOST_THROW_EXCEPTION( NotImplementedException(
( boost::format( "vtk(%s, file) is not implemented" ) % g.geometryType() ).str()
) );
}
}
}
}
#endif
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