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83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
// Copyright (c) 2014-2014 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 <GCPnts_DistFunction.hxx>
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#include <gp_Pnt.hxx>
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//=======================================================================
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//function : MaxCurvLinDist
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//purpose :
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//=======================================================================
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GCPnts_DistFunction::GCPnts_DistFunction(const Adaptor3d_Curve& theCurve,
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const Standard_Real U1, const Standard_Real U2)
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: myCurve(theCurve),
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myU1(U1), myU2(U2)
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{
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gp_Pnt P1 = theCurve.Value(U1), P2 = theCurve.Value(U2);
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if (P1.SquareDistance(P2) > gp::Resolution())
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{
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myLin = gp_Lin(P1, P2.XYZ() - P1.XYZ());
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}
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else
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{
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//For #28812
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theCurve.D0(U1 + .01*(U2-U1), P2);
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myLin = gp_Lin(P1, P2.XYZ() - P1.XYZ());
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}
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}
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//
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//=======================================================================
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//function : Value
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//purpose :
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//=======================================================================
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Standard_Boolean GCPnts_DistFunction::Value (const Standard_Real X,
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Standard_Real& F)
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{
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if (X < myU1 || X > myU2)
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return Standard_False;
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//
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F = -myLin.SquareDistance(myCurve.Value(X));
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return Standard_True;
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}
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//=======================================================================
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//function : MaxCurvLinDistMV
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//purpose :
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//=======================================================================
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GCPnts_DistFunctionMV::GCPnts_DistFunctionMV(GCPnts_DistFunction& theCurvLinDist)
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: myMaxCurvLinDist(theCurvLinDist)
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{
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}
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//=======================================================================
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//function : Value
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//purpose :
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//=======================================================================
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Standard_Boolean GCPnts_DistFunctionMV::Value (const math_Vector& X,
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Standard_Real& F)
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{
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Standard_Boolean Ok = myMaxCurvLinDist.Value(X(1), F);
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return Ok;
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}
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//=======================================================================
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//function : NbVariables
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//purpose :
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//=======================================================================
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Standard_Integer GCPnts_DistFunctionMV::NbVariables() const
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{
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return 1;
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}
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