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//
// Filename : Nature.h
// Author(s) : Emmanuel Turquin
// Purpose : Different natures for both vertices and edges
// Date of creation : 01/07/2003
//
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) : Please refer to the COPYRIGHT file distributed
// with this source distribution.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef NATURE_H
# define NATURE_H
/*! \file Nature.h
* Definitions of Natures of the ViewMap's elements
*/
/*! Namespace gathering the different possible
* natures of 0D and 1D elements of the ViewMap
*/
namespace Nature {
typedef unsigned short VertexNature;
/*! true for any 0D element */
static const VertexNature POINT = 0; // 0
/*! true for SVertex */
static const VertexNature S_VERTEX = (1 << 0); // 1
/*! true for ViewVertex */
static const VertexNature VIEW_VERTEX = (1 << 1); // 2
/*! true for NonTVertex */
static const VertexNature NON_T_VERTEX = (1 << 2); // 4
/*! true for TVertex */
static const VertexNature T_VERTEX = (1 << 3); // 8
/*! true for CUSP */
static const VertexNature CUSP = (1 << 4); // 16
typedef unsigned short EdgeNature;
/*! true for non feature edges (always false for 1D elements of the ViewMap) */
static const EdgeNature NO_FEATURE = 0; // 0
/*! true for silhouettes */
static const EdgeNature SILHOUETTE = (1 << 0); // 1
/*! true for borders */
static const EdgeNature BORDER = (1 << 1); // 2
/*! true for creases */
static const EdgeNature CREASE = (1 << 2); // 4
/*! true for ridges */
static const EdgeNature RIDGE = (1 << 3); // 8
/*! true for valleys */
static const EdgeNature VALLEY = (1 << 4); // 16
/*! true for suggestive contours */
static const EdgeNature SUGGESTIVE_CONTOUR = (1 << 5); // 32
} // end of namespace Nature
#endif // NATURE_H
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