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1 | // Created on: 1996-07-03 |
2 | // Created by: Joelle CHAUVET |
3 | // Copyright (c) 1996-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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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 |
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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. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
17 | #include <AdvApprox_PrefCutting.ixx> |
18 | #include <Precision.hxx> |
19 | |
20 | AdvApprox_PrefCutting::AdvApprox_PrefCutting(const TColStd_Array1OfReal& CutPnts): |
21 | myPntOfCutting(1, CutPnts.Length()) |
22 | { |
23 | myPntOfCutting = CutPnts; |
24 | } |
25 | |
26 | Standard_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 | } |