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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
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
// Created on: 1994-09-05
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// Created by: Yves FRICAUD
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// Copyright (c) 1994-1999 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 <ElCLib.hxx>
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#include <LProp_AnalyticCurInf.hxx>
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#include <LProp_CurAndInf.hxx>
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//=======================================================================
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//function : LProp_AnalyticCurInf
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//purpose :
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//=======================================================================
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LProp_AnalyticCurInf::LProp_AnalyticCurInf()
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{
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}
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//=======================================================================
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//function : Perform
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//purpose :
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//=======================================================================
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void LProp_AnalyticCurInf::Perform (const GeomAbs_CurveType CType,
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const Standard_Real UFirst,
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const Standard_Real ULast,
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LProp_CurAndInf& Result)
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{
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Standard_Boolean IsMin = Standard_True;
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Standard_Boolean IsMax = Standard_False;
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switch (CType) {
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case GeomAbs_Ellipse:
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{
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Standard_Real U1,U2,U3,U4;
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Standard_Real UFPlus2PI = UFirst + 2*M_PI;
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U1 = ElCLib::InPeriod(0.0 ,UFirst,UFPlus2PI);
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U2 = ElCLib::InPeriod(M_PI/2. ,UFirst,UFPlus2PI);
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U3 = ElCLib::InPeriod(M_PI ,UFirst,UFPlus2PI);
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U4 = ElCLib::InPeriod(3.*M_PI/2.,UFirst,UFPlus2PI);
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if (UFirst <= U1 && U1 <= ULast) {Result.AddExtCur(U1, IsMin);}
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if (UFirst <= U2 && U2 <= ULast) {Result.AddExtCur(U2, IsMax);}
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if (UFirst <= U3 && U3 <= ULast) {Result.AddExtCur(U3, IsMin);}
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if (UFirst <= U4 && U4 <= ULast) {Result.AddExtCur(U4, IsMax);}
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}
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break;
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case GeomAbs_Hyperbola:
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if (UFirst <= 0.0 && ULast >= 0.0) {
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Result.AddExtCur(0.0 , Standard_True);
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}
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break;
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case GeomAbs_Parabola:
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if (UFirst <= 0.0 && ULast >= 0.0) {
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Result.AddExtCur(0.0 , Standard_True);
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}
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break;
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default:
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break;
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}
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}
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