146 lines
4.4 KiB
C++
Executable File
146 lines
4.4 KiB
C++
Executable File
// Copyright (c) 1997
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// Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland),
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// INRIA Sophia-Antipolis (France),
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// Max-Planck-Institute Saarbruecken (Germany),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0+
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//
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// Author(s) : Andreas Fabri
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// Lutz Kettner <kettner@inf.ethz.ch>
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// Herve Bronnimann <Herve.Bronnimann@sophia.inria.fr>
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// Mariette Yvinec <Mariette.Yvinec@sophia.inria.fr>
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#ifndef CGAL_IO_INVENTOR_OSTREAM_H
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#define CGAL_IO_INVENTOR_OSTREAM_H
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#include <CGAL/basic.h>
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#include <iostream>
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// OpenInventor and VRML 1.0 are quite similar formats, so
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// output operators could be shared if they use the following
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// base class, which is common for both output streams.
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namespace CGAL {
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class Inventor_ostream_base {
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private:
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std::ostream* m_os;
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public:
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Inventor_ostream_base() : m_os(0) {}
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Inventor_ostream_base(std::ostream& o) : m_os(&o) {}
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~Inventor_ostream_base() { close(); }
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void open(std::ostream& o) { m_os = &o; }
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void close() {
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if ( m_os)
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os() << std::endl;
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m_os = 0;
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}
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#if defined BOOST_NO_EXPLICIT_CONVERSION_OPERATORS \
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|| defined BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
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typedef const void* Const_void_ptr;
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operator Const_void_ptr () const {
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if ( m_os->fail() )
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return 0;
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else
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return static_cast<Const_void_ptr>(m_os);
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}
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#else
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explicit operator bool ()
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{
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return m_os && !m_os->fail();
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}
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#endif
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std::ostream& os() {
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// The behaviour if m_os == 0 could be changed to return
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// cerr or a file handle to /dev/null. The latter one would
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// mimick the behaviour that one can still use a stream with
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// an invalid stream, but without producing any output.
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CGAL_assertion( m_os != 0 );
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return *m_os;
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}
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};
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class Inventor_ostream : public Inventor_ostream_base
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{
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public:
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Inventor_ostream() {}
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Inventor_ostream(std::ostream& o) : Inventor_ostream_base(o) {
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header();
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}
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void open(std::ostream& o) {
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Inventor_ostream_base::open(o);
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header();
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}
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private:
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void header() {
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os() << "#Inventor V2.0 ascii" << std::endl;
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os() << "# File written with the help of the CGAL Library"
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<< std::endl;
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}
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};
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} //namespace CGAL
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#endif // CGAL_IO_INVENTOR_OSTREAM_H
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#ifdef CGAL_TETRAHEDRON_3_H
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#ifndef CGAL_INVENTOR_TETRAHEDRON_3
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#define CGAL_INVENTOR_TETRAHEDRON_3
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namespace CGAL {
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template <class R >
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Inventor_ostream&
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operator<<(Inventor_ostream& os,
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const Tetrahedron_3<R > &t)
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{
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const char *Indent = " ";
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os.os() << "\n Separator {";
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os.os() << "\n Coordinate3 { \n"
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<< Indent << "point [\n"
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<< Indent << " "
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<< CGAL::to_double(t[0].x()) << " "
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<< CGAL::to_double(t[0].y()) << " "
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<< CGAL::to_double(t[0].z()) << " ,\n"
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<< Indent << " "
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<< CGAL::to_double(t[1].x()) << " "
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<< CGAL::to_double(t[1].y()) << " "
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<< CGAL::to_double(t[1].z()) << " ,\n"
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<< Indent << " "
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<< CGAL::to_double(t[2].x()) << " "
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<< CGAL::to_double(t[2].y()) << " "
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<< CGAL::to_double(t[2].z()) << " ,\n"
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<< Indent << " "
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<< CGAL::to_double(t[3].x()) << " "
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<< CGAL::to_double(t[3].y()) << " "
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<< CGAL::to_double(t[3].z()) << " ]"
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<< "\n } #Coordinate3" ;
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os.os() << "\n IndexedFaceSet {"
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<< Indent << "coordIndex [ 0,1,2,-1, 1,3,2,-1,\n"
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<< Indent << " 0,2,3,-1, 0,3,1,-1 ]\n"
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<< "\n } #IndexedFaceSet"
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<< "\n } #Separator\n";
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return os;
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}
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} //namespace CGAL
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#endif // CGAL_INVENTOR_TETRAHEDRON_3
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#endif // CGAL_TETRAHEDRON_3_H
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