0024428: Implementation of LGPL license
[occt.git] / src / AdvApprox / AdvApprox_PrefCutting.cxx
CommitLineData
b311480e 1// Created on: 1996-07-03
2// Created by: Joelle CHAUVET
3// Copyright (c) 1996-1999 Matra Datavision
973c2be1 4// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 5//
973c2be1 6// This file is part of Open CASCADE Technology software library.
b311480e 7//
973c2be1 8// This library is free software; you can redistribute it and / or modify it
9// under the terms of the GNU Lesser General Public 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.
b311480e 13//
973c2be1 14// Alternatively, this file may be used under the terms of Open CASCADE
15// commercial license or contractual agreement.
7fd59977 16
17#include <AdvApprox_PrefCutting.ixx>
18#include <Precision.hxx>
19
20AdvApprox_PrefCutting::AdvApprox_PrefCutting(const TColStd_Array1OfReal& CutPnts):
21 myPntOfCutting(1, CutPnts.Length())
22{
23 myPntOfCutting = CutPnts;
24}
25
26Standard_Boolean AdvApprox_PrefCutting::Value(const Standard_Real a,
27 const Standard_Real b,
28 Standard_Real& cuttingvalue) const
29{
30// longueur minimum d'un intervalle parametrique : PConfusion()
31// pour F(U,V) : EPS1=1.e-9 (cf.MMEPS1)
32 Standard_Real lgmin = 10 * Precision::PConfusion();
33 Standard_Integer i;
34 Standard_Real cut, mil=(a+b)/2,
35 dist = Abs((a-b)/2);
36 cut = mil;
37 for ( i=myPntOfCutting.Lower(); i<= myPntOfCutting.Upper(); i++) {
38 if ((dist-lgmin) > Abs(mil-myPntOfCutting.Value(i))) {
39 cut = myPntOfCutting.Value(i);
40 dist = Abs(mil-myPntOfCutting.Value(i));
41 }
42 }
43 cuttingvalue = cut;
44 return (Abs(cut-a)>=lgmin && Abs(b-cut)>=lgmin);
45}