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57 lines
1.7 KiB
C++
57 lines
1.7 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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// pmn -> modified 17/01/1996 : utilisation de Curve() et SetCurve()
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#include <Law_BSpline.hxx>
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#include <Law_S.hxx>
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#include <Standard_Type.hxx>
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#include <TColStd_Array1OfInteger.hxx>
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#include <TColStd_Array1OfReal.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(Law_S,Law_BSpFunc)
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Law_S::Law_S ()
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{}
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void Law_S::Set (const Standard_Real Pdeb,
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const Standard_Real Valdeb,
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const Standard_Real Pfin,
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const Standard_Real Valfin)
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{
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Set(Pdeb,Valdeb,0.,Pfin,Valfin,0.);
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}
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void Law_S::Set (const Standard_Real Pdeb,
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const Standard_Real Valdeb,
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const Standard_Real Ddeb,
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const Standard_Real Pfin,
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const Standard_Real Valfin,
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const Standard_Real Dfin)
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{
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TColStd_Array1OfReal poles(1,4);
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TColStd_Array1OfReal knots(1,2);
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TColStd_Array1OfInteger mults(1,2);
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poles(1) = Valdeb; poles(4) = Valfin;
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Standard_Real coe = (Pfin-Pdeb) / 3.;
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poles(2) = Valdeb + coe * Ddeb;
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poles(3) = Valfin - coe * Dfin;
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knots(1) = Pdeb; knots(2) = Pfin;
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mults(1) = mults(2) = 4;
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SetCurve( new Law_BSpline(poles,knots,mults,3) );
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}
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