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// Copyright (c) 2005 Tel-Aviv University (Israel).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1.1/Envelope_3/include/CGAL/Envelope_3/Envelope_base.h $
// $Id: include/CGAL/Envelope_3/Envelope_base.h 08b27d3db14 $
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
//
// Author(s) : Michal Meyerovitch <gorgymic@post.tau.ac.il>
// Baruch Zukerman <baruchzu@post.tau.ac.il>
// Efi Fogel <efif@post.tau.ac.il>
#ifndef CGAL_ENVELOPE_BASE_H
#define CGAL_ENVELOPE_BASE_H
#include <CGAL/license/Envelope_3.h>
namespace CGAL {
// Envelope types:
enum Envelope_type {
ENVELOPE_LOWER = 1,
ENVELOPE_UPPER = 2
};
// Types of intersection curve between 2 xy-monotone surfaces:
enum Intersection_type {
INTERSECTION_UNKNOWN = 0,
INTERSECTION_TRANSVERSAL = 1,
INTERSECTION_TANGENT = 2
};
// Decision mark for DCEL features:
enum Dac_decision
{
DAC_DECISION_FIRST = -1,
DAC_DECISION_BOTH,
DAC_DECISION_SECOND,
DAC_DECISION_NOT_SET
};
} //namespace CGAL
#endif // CGAL_ENVELOPE_BASE_3_H
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