mirror of https://github.com/CGAL/cgal
93 lines
2.8 KiB
C++
93 lines
2.8 KiB
C++
// Copyright (c) 2017 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.
|
|
//
|
|
// $URL$
|
|
// $Id$
|
|
// SPDX-License-Identifier: LGPL-3.0+
|
|
//
|
|
// Author(s) : Sebastien Loriot
|
|
|
|
#ifndef CGAL_IO_STL_STL_WRITER_H
|
|
#define CGAL_IO_STL_STL_WRITER_H
|
|
|
|
#include <CGAL/Kernel_traits.h>
|
|
#include <CGAL/Kernel/global_functions.h>
|
|
|
|
#include <boost/cstdint.hpp>
|
|
|
|
|
|
|
|
namespace CGAL{
|
|
|
|
template <class Point, class Triangle>
|
|
std::ostream&
|
|
write_STL(const std::vector<Point>& points,
|
|
const std::vector<Triangle>& facets,
|
|
std::ostream& out)
|
|
{
|
|
typedef typename CGAL::Kernel_traits<Point>::Kernel K;
|
|
typedef typename K::Vector_3 Vector_3;
|
|
|
|
|
|
if (get_mode(out) == IO::BINARY)
|
|
{
|
|
out << "FileType: Binary ";
|
|
const boost::uint32_t N32 = static_cast<boost::uint32_t>(facets.size());
|
|
out.write(reinterpret_cast<const char *>(&N32), sizeof(N32));
|
|
|
|
for(auto face : facets)
|
|
{
|
|
const Point& p = points[face[0]];
|
|
const Point& q = points[face[1]];
|
|
const Point& r = points[face[2]];
|
|
|
|
Vector_3 n = collinear(p,q,r) ? Vector_3(1,0,0):
|
|
unit_normal(p,q,r);
|
|
|
|
const float coords[12]={
|
|
static_cast<float>(n.x()), static_cast<float>(n.y()), static_cast<float>(n.z()),
|
|
static_cast<float>(p.x()), static_cast<float>(p.y()), static_cast<float>(p.z()),
|
|
static_cast<float>(q.x()), static_cast<float>(q.y()), static_cast<float>(q.z()),
|
|
static_cast<float>(r.x()), static_cast<float>(r.y()), static_cast<float>(r.z()) };
|
|
|
|
for (int i=0; i<12; ++i)
|
|
out.write(reinterpret_cast<const char *>(&coords[i]), sizeof(coords[i]));
|
|
out << " ";
|
|
}
|
|
}
|
|
else
|
|
{
|
|
out << "solid\n";
|
|
for(auto face : facets)
|
|
{
|
|
const Point& p = points[face[0]];
|
|
const Point& q = points[face[1]];
|
|
const Point& r = points[face[2]];
|
|
|
|
Vector_3 n = collinear(p,q,r) ? Vector_3(1,0,0):
|
|
unit_normal(p,q,r);
|
|
out << "facet normal " << n << "\nouter loop\n";
|
|
out << "vertex " << p << "\n";
|
|
out << "vertex " << q << "\n";
|
|
out << "vertex " << r << "\n";
|
|
out << "endloop\nendfacet\n";
|
|
}
|
|
out << "endsolid\n";
|
|
}
|
|
return out;
|
|
}
|
|
|
|
} // end of namespace CGAL
|
|
|
|
#endif // CGAL_IO_STL_STL_WRITER_H
|