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973c2be1e1
The copying permission statements at the beginning of source files updated to refer to LGPL. Copyright dates extended till 2014 in advance.
70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
// Created on: 1997-03-28
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// Created by: Philippe MANGIN
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// Copyright (c) 1997-1999 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
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// under the terms of the GNU Lesser General Public 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 <ChFi3d_SearchSing.ixx>
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#include <gp_Pnt.hxx>
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#include <gp_Vec.hxx>
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ChFi3d_SearchSing::ChFi3d_SearchSing(const Handle(Geom_Curve)& C1,
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const Handle(Geom_Curve)& C2)
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{
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myC1 = C1;
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myC2 = C2;
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}
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Standard_Boolean ChFi3d_SearchSing::Value(const Standard_Real X,
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Standard_Real& F)
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{
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gp_Pnt P1, P2;
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gp_Vec V1, V2;
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myC1->D1(X, P1, V1);
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myC2->D1(X, P2, V2);
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gp_Vec V(P1,P2);
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F = V * (V2-V1);
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return Standard_True;
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}
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Standard_Boolean ChFi3d_SearchSing::Derivative(const Standard_Real X,
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Standard_Real& D )
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{
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gp_Pnt P1, P2;
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gp_Vec V1, V2, W1, W2;
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myC1->D2(X, P1, V1, W1);
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myC2->D2(X, P2, V2, W2);
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gp_Vec V(P1,P2), VPrim;
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VPrim = V2 -V1;
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D = VPrim.SquareMagnitude() + (V * (W2-W1));
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return Standard_True;
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}
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Standard_Boolean ChFi3d_SearchSing::Values(const Standard_Real X,
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Standard_Real& F,
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Standard_Real& D )
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{
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gp_Pnt P1, P2;
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gp_Vec V1, V2, W1, W2;
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myC1->D2(X, P1, V1, W1);
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myC2->D2(X, P2, V2, W2);
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gp_Vec V(P1,P2), VPrim;
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VPrim = V2 -V1;
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F = V * VPrim;
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D = VPrim.SquareMagnitude() + (V * (W2-W1));
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return Standard_True;
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}
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