1 # -*- coding: utf-8 -*-
2 # Copyright (C) 2014-2021 EDF R&D
4 # This library is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU Lesser General Public
6 # License as published by the Free Software Foundation; either
7 # version 2.1 of the License, or (at your option) any later version.
9 # This library is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Lesser General Public License for more details.
14 # You should have received a copy of the GNU Lesser General Public
15 # License along with this library; if not, write to the Free Software
16 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 """Calcul de la position d'une shape par rapport à une face (dessus, dessous, sur la surface même)"""
24 from .geomsmesh import geompy
26 def whichSideVertex(face, vertex, tol = 1.e-3):
28 Position d'un vertex par rapport a une face (non nécessairement plane).
29 renvoie 1 si le vertex est du coté de la normale à la face,
30 -1 de l'autre coté, 0 si il est sur la face
32 #logging.info('start')
34 distance = geompy.MinDistance(vertex, face)
35 #logging.debug(" distance %s", distance)
38 projection = geompy.MakeProjection(vertex, face)
39 normal = geompy.GetNormal(face, projection)
40 vect = geompy.MakeVector(projection, vertex)
41 angle = geompy.GetAngle(normal, vect)
42 #logging.debug(" angle %s", angle)
44 if ( abs(angle) > 10 ):
46 logging.debug("side %s distance %s", side, distance)