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1 | // Copyright (c) 1995-1999 Matra Datavision |
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2 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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3 | // |
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4 | // This file is part of Open CASCADE Technology software library. |
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5 | // |
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6 | // This library is free software; you can redistribute it and/or modify it under |
7 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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8 | // by the Free Software Foundation, with special exception defined in the file |
9 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
10 | // distribution for complete text of the license and disclaimer of any warranty. |
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11 | // |
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12 | // Alternatively, this file may be used under the terms of Open CASCADE |
13 | // commercial license or contractual agreement. |
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14 | |
15 | #include <BRepClass_FaceClassifier.ixx> |
16 | #include <TopAbs_State.hxx> |
17 | #include <Extrema_ExtPS.hxx> |
18 | |
19 | #include <BRepAdaptor_Surface.hxx> |
20 | #include <BRepTools.hxx> |
21 | #include <BRepAdaptor_HSurface.hxx> |
22 | |
23 | //======================================================================= |
24 | //function : BRepClass_FaceClassifier |
25 | //purpose : |
26 | //======================================================================= |
27 | BRepClass_FaceClassifier::BRepClass_FaceClassifier() |
28 | { |
29 | } |
30 | |
31 | //======================================================================= |
32 | //function : BRepClass_FaceClassifier |
33 | //purpose : |
34 | //======================================================================= |
35 | BRepClass_FaceClassifier::BRepClass_FaceClassifier(BRepClass_FaceExplorer& F, |
36 | const gp_Pnt2d& P, |
37 | const Standard_Real Tol) |
38 | : |
39 | BRepClass_FClassifier(F,P,Tol) |
40 | { |
41 | } |
42 | //======================================================================= |
43 | //function : BRepClass_FaceClassifier |
44 | //purpose : |
45 | //======================================================================= |
46 | BRepClass_FaceClassifier::BRepClass_FaceClassifier(const TopoDS_Face& F, |
47 | const gp_Pnt& P, |
48 | const Standard_Real Tol) |
49 | { |
50 | Perform(F,P,Tol); |
51 | } |
52 | //======================================================================= |
53 | //function : BRepClass_FaceClassifier |
54 | //purpose : |
55 | //======================================================================= |
56 | BRepClass_FaceClassifier::BRepClass_FaceClassifier(const TopoDS_Face& F, |
57 | const gp_Pnt2d& P, |
58 | const Standard_Real Tol) |
59 | { |
60 | Perform(F,P,Tol); |
61 | } |
62 | |
63 | //======================================================================= |
64 | //function : Perform |
65 | //purpose : |
66 | //======================================================================= |
67 | void BRepClass_FaceClassifier::Perform(const TopoDS_Face& F, |
68 | const gp_Pnt2d& P, |
69 | const Standard_Real Tol) |
70 | { |
71 | BRepClass_FaceExplorer Fex(F); |
72 | BRepClass_FClassifier::Perform(Fex,P,Tol); |
73 | } |
74 | |
75 | |
76 | |
77 | |
78 | |
79 | |
80 | //======================================================================= |
81 | //function : Perform |
82 | //purpose : |
83 | //======================================================================= |
84 | void BRepClass_FaceClassifier::Perform(const TopoDS_Face& aF, |
85 | const gp_Pnt& aP, |
86 | const Standard_Real aTol) |
87 | { |
88 | Standard_Integer aNbExt, aIndice, i; |
89 | Standard_Real aU1, aU2, aV1, aV2, aMaxDist, aD; |
90 | gp_Pnt2d aPuv; |
91 | Extrema_ExtPS aExtrema; |
92 | // |
93 | aMaxDist=RealLast(); |
94 | aIndice=0; |
95 | // |
96 | BRepAdaptor_Surface aSurf(aF); |
97 | BRepTools::UVBounds(aF, aU1, aU2, aV1, aV2); |
98 | aExtrema.Initialize(aSurf, aU1, aU2, aV1, aV2, aTol, aTol); |
99 | // |
100 | //modified by NIZNHY-PKV Wed Aug 13 11:28:47 2008f |
101 | rejected=Standard_True; |
102 | //modified by NIZNHY-PKV Wed Aug 13 11:28:49 2008t |
103 | aExtrema.Perform(aP); |
104 | if(!aExtrema.IsDone()) { |
105 | return; |
106 | } |
107 | // |
108 | aNbExt=aExtrema.NbExt(); |
109 | if(!aNbExt) { |
110 | return; |
111 | } |
112 | // |
113 | for (i=1; i<=aNbExt; ++i) { |
114 | aD=aExtrema.SquareDistance(i); |
115 | if(aD < aMaxDist) { |
116 | aMaxDist=aD; |
117 | aIndice=i; |
118 | } |
119 | } |
120 | // |
121 | if(aIndice) { |
122 | aExtrema.Point(aIndice).Parameter(aU1, aU2); |
123 | aPuv.SetCoord(aU1, aU2); |
124 | Perform(aF, aPuv, aTol); |
125 | } |
126 | } |
127 | |
128 | |
129 | |
130 | |
131 | |
132 | |
133 | |