/usr/include/CGAL/IO/STL_reader.h is in libcgal-dev 4.11-2build1.
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 | // Copyright (c) 2015 GeometryFactory
//
// This file is part of CGAL (www.cgal.org); 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 3 of the License,
// or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
// Author(s) : Andreas Fabri
#ifndef CGAL_IO_STL_READER_H
#define CGAL_IO_STL_READER_H
#include <CGAL/license/Polyhedron.h>
#include <CGAL/array.h>
#include <boost/cstdint.hpp>
#include <vector>
#include <map>
#include <iostream>
#include <string>
namespace CGAL{
bool
read_STL( std::istream& input,
std::vector< cpp11::array<double,3> >& points,
std::vector< cpp11::array<int,3> >& facets,
bool verbose = false)
{
std::string s, solid("solid");
std::map<cpp11::array<double,3>, int> pmap;
int index = 0;
cpp11::array<int,3> ijk;
cpp11::array<double,3> p;
char line[80];
for(int i=0;i < 80; i++){
boost::uint8_t c;
input.read(reinterpret_cast<char*>(&c), sizeof(c));
line[i]=c;
if(i==5){
s = std::string(line,5);
if(s == solid){
break;
}
}
}
if(s!= solid){
boost::uint32_t N32;
input.read(reinterpret_cast<char*>(&N32), sizeof(N32));
unsigned int N = N32;
for(unsigned int i=0; i < N; i++){
float normal[3];
input.read(reinterpret_cast<char*>(&normal[0]), sizeof(normal[0]));
input.read(reinterpret_cast<char*>(&normal[1]), sizeof(normal[1]));
input.read(reinterpret_cast<char*>(&normal[2]), sizeof(normal[2]));
for(int j=0; j < 3; j++){
float x,y,z;
input.read(reinterpret_cast<char*>(&x), sizeof(x));
input.read(reinterpret_cast<char*>(&y), sizeof(y));
input.read(reinterpret_cast<char*>(&z), sizeof(z));
p[0]=x; p[1]=y; p[2]=z;
std::map<cpp11::array<double,3>, int>::iterator iti=
pmap.insert(std::make_pair(p,-1)).first;
if(iti->second==-1){
ijk[j] = index;
iti->second = index++;
points.push_back(p);
} else {
ijk[j] = iti->second;
}
}
if((ijk[0] != ijk[1]) &&
(ijk[0] != ijk[2]) &&
(ijk[1] != ijk[2])){
facets.push_back(ijk);
}else{
if(verbose){
std::cerr << "ignore degenerate face" << std::endl;
}
}
char c;
input.read(reinterpret_cast<char*>(&c), sizeof(c));
input.read(reinterpret_cast<char*>(&c), sizeof(c));
}
return true;
} else {
std::string facet("facet"),
outer("outer"),
loop("loop"),
vertex("vertex"),
endloop("endloop"),
endsolid("endsolid");
while(input >> s){
if(s == endsolid){
//std::cerr << "found endsolid" << std::endl;
} else if(s == facet){
//std::cerr << "found facet" << std::endl;
std::getline(input, s); // ignore the normal
input >> s;
if(s != outer){
if (verbose)
std::cerr << "Expect 'outer' and got " << s << std::endl;
return false;
}
input >> s;
if(s != loop){
if (verbose)
std::cerr << "Expect 'loop' and got " << s << std::endl;
return false;
}
int count = 0;
do {
input >> s;
if(s == vertex){
// std::cerr << "found vertex" << std::endl;
if(count < 3){
input >> p[0] >> p[1] >> p[2];
std::map<cpp11::array<double,3>, int>::iterator iti=
pmap.insert(std::make_pair(p,-1)).first;
if(iti->second==-1){
ijk[count] = index;
iti->second = index++;
points.push_back(p);
} else {
ijk[count] = iti->second;
}
++count;
} else {
if (verbose)
std::cerr << "We can only read triangulated surfaces" << std::endl;
return false;
}
}
}while(s != endloop);
facets.push_back(ijk);
}
}
return true;
}
}
} // namespace CGAL
#endif // CGAL_IO_STL_READER_H
|