1 // Created on: 1994-04-05
2 // Created by: Yves FRICAUD
3 // Copyright (c) 1994-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #include <Bisector_FunctionInter.ixx>
18 #include <Geom2d_Curve.hxx>
19 #include <Bisector_BisecCC.hxx>
20 #include <Bisector_BisecPC.hxx>
21 #include <gp_Pnt2d.hxx>
22 #include <gp_Vec2d.hxx>
24 #include <Precision.hxx>
26 //=============================================================================
29 //=============================================================================
30 Bisector_FunctionInter::Bisector_FunctionInter ()
34 //=============================================================================
37 //=============================================================================
38 Bisector_FunctionInter::Bisector_FunctionInter (const Handle(Geom2d_Curve)& C ,
39 const Handle(Bisector_Curve)& B1 ,
40 const Handle(Bisector_Curve)& B2 )
47 //=============================================================================
50 //=============================================================================
51 void Bisector_FunctionInter::Perform (const Handle(Geom2d_Curve)& C ,
52 const Handle(Bisector_Curve)& B1 ,
53 const Handle(Bisector_Curve)& B2 )
60 //=============================================================================
63 ///=============================================================================
64 Standard_Boolean Bisector_FunctionInter::Value (const Standard_Real X,
67 gp_Pnt2d PC = curve ->Value(X);
68 gp_Pnt2d PB1 = bisector1 ->Value(X);
69 gp_Pnt2d PB2 = bisector2 ->Value(X);
71 F = PC.Distance(PB1) - PC.Distance(PB2);
76 //=============================================================================
77 //function : Derivative
79 //=============================================================================
80 Standard_Boolean Bisector_FunctionInter::Derivative(const Standard_Real X,
84 return Values (X,F,D);
87 //=============================================================================
90 //=============================================================================
91 Standard_Boolean Bisector_FunctionInter::Values (const Standard_Real X,
95 gp_Pnt2d PC, PB1, PB2;
96 gp_Vec2d TC, TB1, TB2;
97 Standard_Real F1, F2, DF1, DF2;
100 bisector1 ->D1(X,PB1,TB1);
101 bisector2 ->D1(X,PB2,TB2);
102 F1 = PC.Distance(PB1);
103 F2 = PC.Distance(PB2);
105 if (Abs(F1) < gp::Resolution()) {
106 DF1 = Precision::Infinite();
109 DF1 = ((PC.X() - PB1.X())*(TC.X() - TB1.X()) +
110 (PC.Y() - PB1.Y())*(TC.Y() - TB1.Y()) )/F1;
112 if (Abs(F2) < gp::Resolution()) {
113 DF2 = Precision::Infinite();
116 DF2 = ((PC.X() - PB2.X())*(TC.X() - TB2.X()) +
117 (PC.Y() - PB2.Y())*(TC.Y() - TB2.Y()) )/F2;
121 return Standard_True;