mirror of
https://github.com/Open-Cascade-SAS/OCCT.git
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42cf5bc1ca
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl": - WOK-generated header files from inc and sources from drv are moved to src - CDL files removed - All packages are converted to nocdlpack
105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
// Copyright (c) 1995-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <gp.hxx>
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#include <gp_Dir.hxx>
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#include <gp_Vec.hxx>
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#include <IntSurf.hxx>
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#include <IntSurf_Transition.hxx>
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#include <Precision.hxx>
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//--------------------------------------------------------------
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//-- IntSurf::MakeTransition(Vtgint,Vtgrst,Normale,Transline,Transarc);
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//--
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//-- tgFirst = Tangente Ligne Intersection
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//-- tgSecond = Tangenet Restriction
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//-- Normale = Normale a la surface
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void IntSurf::MakeTransition (const gp_Vec& TgFirst,
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const gp_Vec& TgSecond,
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const gp_Dir& Normale,
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IntSurf_Transition& TFirst,
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IntSurf_Transition& TSecond)
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{
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// Effectuer le produit mixte normale, tangente 1, tangente 2
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// pour avoir le type de la transition.
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gp_Vec pvect(TgSecond.Crossed(TgFirst));
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Standard_Real NTgSecond = TgSecond.Magnitude();
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Standard_Real NTgFirst = TgFirst.Magnitude();
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Standard_Real NTgSecondNTgFirstAngular = NTgSecond*NTgFirst*Precision::Angular();
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if(NTgFirst <= Precision::Confusion()) {
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TFirst.SetValue(Standard_True,IntSurf_Undecided);
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TSecond.SetValue(Standard_True,IntSurf_Undecided);
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}
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else if ( (NTgSecond <= Precision::Confusion())
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|| (pvect.Magnitude()<= NTgSecondNTgFirstAngular)) {
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TFirst.SetValue(Standard_True,IntSurf_Unknown,TgFirst.Dot(TgSecond)<0.0);
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TSecond.SetValue(Standard_True,IntSurf_Unknown,TgFirst.Dot(TgSecond)<0.0);
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}
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else {
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Standard_Real yu = pvect.Dot(Normale);
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yu/=NTgSecond*NTgFirst;
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if (yu>0.0001) {
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TFirst.SetValue(Standard_False,IntSurf_In);
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TSecond.SetValue(Standard_False,IntSurf_Out);
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}
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else if(yu<-0.0001) {
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TFirst.SetValue(Standard_False,IntSurf_Out);
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TSecond.SetValue(Standard_False,IntSurf_In);
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}
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else {
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#if 0
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//-- MODIF XAB
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gp_Vec V1(TgSecond.X() / NTgSecond,TgSecond.Y() / NTgSecond, TgSecond.Z() / NTgSecond);
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gp_Vec V2(TgFirst.X() / NTgFirst,TgFirst.Y() / NTgFirst, TgFirst.Z() / NTgFirst);
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pvect = V1.Crossed(V2);
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yu = pvect.Dot(Normale);
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if (yu>0.0000001) {
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TFirst.SetValue(Standard_False,IntSurf_In);
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TSecond.SetValue(Standard_False,IntSurf_Out);
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}
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else if(yu<-0.0000001) {
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TFirst.SetValue(Standard_False,IntSurf_Out);
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TSecond.SetValue(Standard_False,IntSurf_In);
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}
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else {
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TFirst.SetValue(Standard_True,IntSurf_Undecided);
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TSecond.SetValue(Standard_True,IntSurf_Undecided);
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}
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#else
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TFirst.SetValue(Standard_True,IntSurf_Undecided);
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TSecond.SetValue(Standard_True,IntSurf_Undecided);
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#endif
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}
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}
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}
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