0024166: Unable to create file with "Save" menu of voxeldemo Qt sample
[occt.git] / src / AdvApprox / AdvApprox_PrefCutting.cxx
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b311480e 1// Created on: 1996-07-03
2// Created by: Joelle CHAUVET
3// Copyright (c) 1996-1999 Matra Datavision
4// Copyright (c) 1999-2012 OPEN CASCADE SAS
5//
6// The content of this file is subject to the Open CASCADE Technology Public
7// License Version 6.5 (the "License"). You may not use the content of this file
8// except in compliance with the License. Please obtain a copy of the License
9// at http://www.opencascade.org and read it completely before using this file.
10//
11// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
12// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
13//
14// The Original Code and all software distributed under the License is
15// distributed on an "AS IS" basis, without warranty of any kind, and the
16// Initial Developer hereby disclaims all such warranties, including without
17// limitation, any warranties of merchantability, fitness for a particular
18// purpose or non-infringement. Please see the License for the specific terms
19// and conditions governing the rights and limitations under the License.
20
7fd59977 21
22
23#include <AdvApprox_PrefCutting.ixx>
24#include <Precision.hxx>
25
26AdvApprox_PrefCutting::AdvApprox_PrefCutting(const TColStd_Array1OfReal& CutPnts):
27 myPntOfCutting(1, CutPnts.Length())
28{
29 myPntOfCutting = CutPnts;
30}
31
32Standard_Boolean AdvApprox_PrefCutting::Value(const Standard_Real a,
33 const Standard_Real b,
34 Standard_Real& cuttingvalue) const
35{
36// longueur minimum d'un intervalle parametrique : PConfusion()
37// pour F(U,V) : EPS1=1.e-9 (cf.MMEPS1)
38 Standard_Real lgmin = 10 * Precision::PConfusion();
39 Standard_Integer i;
40 Standard_Real cut, mil=(a+b)/2,
41 dist = Abs((a-b)/2);
42 cut = mil;
43 for ( i=myPntOfCutting.Lower(); i<= myPntOfCutting.Upper(); i++) {
44 if ((dist-lgmin) > Abs(mil-myPntOfCutting.Value(i))) {
45 cut = myPntOfCutting.Value(i);
46 dist = Abs(mil-myPntOfCutting.Value(i));
47 }
48 }
49 cuttingvalue = cut;
50 return (Abs(cut-a)>=lgmin && Abs(b-cut)>=lgmin);
51}