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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
89 lines
2.8 KiB
C++
89 lines
2.8 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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//============================================ IntAna2d_AnaIntersection_6.cxx
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//============================================================================
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#include <gp_Circ2d.hxx>
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#include <gp_Elips2d.hxx>
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#include <gp_Hypr2d.hxx>
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#include <gp_Lin2d.hxx>
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#include <gp_Parab2d.hxx>
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#include <IntAna2d_AnaIntersection.hxx>
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#include <IntAna2d_Conic.hxx>
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#include <IntAna2d_IntPoint.hxx>
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#include <IntAna2d_Outils.hxx>
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#include <Standard_OutOfRange.hxx>
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#include <StdFail_NotDone.hxx>
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void IntAna2d_AnaIntersection::Perform(const gp_Elips2d& Elips,
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const IntAna2d_Conic& Conic)
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{
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Standard_Boolean EIsDirect = Elips.IsDirect();
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Standard_Real A,B,C,D,E,F;
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Standard_Real pcte,ps,pc,p2sc,pcc,pss;
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Standard_Real minor_radius=Elips.MinorRadius();
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Standard_Real major_radius=Elips.MajorRadius();
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Standard_Integer i;
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Standard_Real tx,ty,S;
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done = Standard_False;
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nbp = 0;
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para = Standard_False;
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iden = Standard_False;
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empt = Standard_False;
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gp_Ax2d Axe_rep(Elips.XAxis());
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Conic.Coefficients(A,B,C,D,E,F);
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Conic.NewCoefficients(A,B,C,D,E,F,Axe_rep);
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// Parametre : a avec x=MajorRadius Cos(a) et y=MinorRadius Sin(a)
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pss= B*minor_radius*minor_radius; // SIN ^2
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pcc= A*major_radius*major_radius-pss; // COS ^2
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p2sc=C*major_radius*minor_radius; // 2 SIN COS
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pc= 2.0*D*major_radius; // COS
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ps= 2.0*E*minor_radius; // SIN
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pcte=F+pss; // 1
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math_TrigonometricFunctionRoots Sol(pcc,p2sc,pc,ps,pcte,0.0,2.0*M_PI);
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if (!Sol.IsDone()) {
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done=Standard_False;
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return;
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}
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else {
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if(Sol.InfiniteRoots()) {
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iden=Standard_True;
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done=Standard_True;
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return;
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}
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nbp=Sol.NbSolutions();
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for(i=1;i<=nbp;i++) {
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S = Sol.Value(i);
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tx=major_radius*Cos(S);
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ty=minor_radius*Sin(S);
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Coord_Ancien_Repere(tx,ty,Axe_rep);
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if(!EIsDirect)
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S = M_PI+M_PI-S;
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lpnt[i-1].SetValue(tx,ty,S);
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}
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Traitement_Points_Confondus(nbp,lpnt);
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}
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done = Standard_True;
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}
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