mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
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82 lines
3.0 KiB
Python
82 lines
3.0 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2014-2021 EDF R&D
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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#
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"""Opérateur de rotation translation d'un objet centré à l'origine"""
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import logging
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import math
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from .geomsmesh import geompy
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from .geomsmesh import geomPublish
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from . import initLog
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from .triedreBase import triedreBase
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O, OX, OY, OZ = triedreBase()
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def rotTrans(objet, orientation, point, normal, trace = False):
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"""
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Déplacement par rotation translation d'un objet centré à l'origine, vers un point de la surface de la pièce saine
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dans laquelle on insère le défaut.
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@param objet : objet original centré à l'origine (geomObject)
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@param orientation : rotation selon OX de l'objet original (degrés)
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@param point : le point qui sera le centre de l'objet déplacé (geomObject), en général sur la surface de la pièce saine
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@param normal : la normale à la surface de la pièce saine au point central (geomObject)
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@return trans : objet transformé (geomObject)
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"""
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logging.info("start")
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planXY = geompy.MakePlaneLCS(None, 2000, 1)
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projXY = geompy.MakeProjection(normal, planXY)
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[v_1,v_2] = geompy.ExtractShapes(projXY, geompy.ShapeType["VERTEX"], False)
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xyz1 = geompy.PointCoordinates(v_1)
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xyz2 = geompy.PointCoordinates(v_2)
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x = xyz2[0] - xyz1[0]
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y = xyz2[1] - xyz1[1]
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sinalpha = y / math.sqrt(x*x + y*y)
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cosalpha = x / math.sqrt(x*x + y*y)
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alpha = math.asin(sinalpha)
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if ( cosalpha < 0. ):
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alpha = math.pi -alpha
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beta = geompy.GetAngleRadians(OZ, normal)
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[v_1,v_2] = geompy.ExtractShapes(normal, geompy.ShapeType["VERTEX"], False)
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xyz1 = geompy.PointCoordinates(v_1)
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xyz2 = geompy.PointCoordinates(v_2)
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if ( (xyz2[2] - xyz1[2]) < 0 ):
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beta = math.pi -beta
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rot0 = geompy.MakeRotation(objet, OX, orientation*math.pi/180.0)
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rot1 = geompy.MakeRotation(rot0, OZ, alpha)
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axe2 = geompy.MakeRotation(OY, OZ, alpha)
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rot2 = geompy.MakeRotation(rot1, axe2, beta -math.pi/2.)
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logging.debug("alpha %f",alpha)
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logging.debug("beta %f",beta)
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if trace:
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geomPublish(initLog.debug, rot1, 'rot1' )
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geomPublish(initLog.debug, axe2, 'axe2' )
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geomPublish(initLog.debug, rot2, 'rot2' )
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xyz = geompy.PointCoordinates(point)
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trans = geompy.MakeTranslation(rot2, xyz[0], xyz[1], xyz[2])
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return trans
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