mirror of https://github.com/CGAL/cgal
61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
// Copyright (c) 2005 Tel-Aviv University (Israel).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you may redistribute it under
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// the terms of the Q Public License version 1.0.
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// See the file LICENSE.QPL distributed with CGAL.
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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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//
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//
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// Author(s) : Michal Meyerovitch <gorgymic@post.tau.ac.il>
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#ifndef CGAL_ENVELOPE_BASE_3_H
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#define CGAL_ENVELOPE_BASE_3_H
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CGAL_BEGIN_NAMESPACE
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enum Envelope_type
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{
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LOWER = 1,
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UPPER
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};
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// the type of intersection curve between 2 xy-monotone surfaces
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enum Intersection_type
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{
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TRANSVERSAL = 1, // the 2 surfaces vertically change place at the intersection curve
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TANGENT, // the 2 surfaces keep their relative vertical position
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UNKNOWN // the type is not known
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};
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enum Dac_decision
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{
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FIRST = -1,
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BOTH,
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SECOND,
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NOT_SET
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};
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template <class _Traits>
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class Envelope_base_3
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{
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public:
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typedef _Traits Traits;
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// virtual destructor.
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virtual ~Envelope_base_3(){}
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};
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CGAL_END_NAMESPACE
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#endif // CGAL_ENVELOPE_BASE_3_H
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