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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
81 lines
2.4 KiB
C++
81 lines
2.4 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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//Modif JCV 10/01/91
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#include <gp_Ax2d.hxx>
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#include <gp_Ax22d.hxx>
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#include <gp_Elips2d.hxx>
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#include <gp_Pnt2d.hxx>
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#include <gp_Trsf2d.hxx>
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#include <gp_Vec2d.hxx>
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#include <Standard_ConstructionError.hxx>
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void gp_Elips2d::Coefficients (Standard_Real& A,
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Standard_Real& B,
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Standard_Real& C,
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Standard_Real& D,
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Standard_Real& E,
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Standard_Real& F) const
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{
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Standard_Real DMin = minorRadius * minorRadius;
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Standard_Real DMaj = majorRadius * majorRadius;
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if (DMin <= gp::Resolution() && DMaj <= gp::Resolution()) {
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A = B = C = D = E = F = 0.0;
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}
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else {
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gp_Trsf2d T;
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T.SetTransformation (pos.XAxis());
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Standard_Real T11 = T.Value (1, 1);
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Standard_Real T12 = T.Value (1, 2);
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Standard_Real T13 = T.Value (1, 3);
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if (DMin <= gp::Resolution()) {
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A = T11 * T11; B = T12 * T12; C = T11 * T12;
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D = T11 * T13; E = T12 * T13; F = T13 * T13 - DMaj;
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}
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else {
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Standard_Real T21 = T.Value (2, 1);
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Standard_Real T22 = T.Value (2, 2);
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Standard_Real T23 = T.Value (2, 3);
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A = (T11 * T11 / DMaj) + (T21 * T21 / DMin);
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B = (T12 * T12 / DMaj) + (T22 * T22 / DMin);
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C = (T11 * T12 / DMaj) + (T21 * T22 / DMin);
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D = (T11 * T13 / DMaj) + (T21 * T23 / DMin);
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E = (T12 * T13 / DMaj) + (T22 * T23 / DMin);
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F = (T13 * T13 / DMaj) + (T23 * T23 / DMin) - 1.0;
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}
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}
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}
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void gp_Elips2d::Mirror (const gp_Pnt2d& P)
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{ pos.Mirror(P); }
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gp_Elips2d gp_Elips2d::Mirrored (const gp_Pnt2d& P) const
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{
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gp_Elips2d E = *this;
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E.pos.Mirror (P);
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return E;
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}
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void gp_Elips2d::Mirror (const gp_Ax2d& A)
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{ pos.Mirror(A); }
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gp_Elips2d gp_Elips2d::Mirrored (const gp_Ax2d& A) const
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{
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gp_Elips2d E = *this;
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E.pos.Mirror (A);
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return E;
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}
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