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1 | // Created on: 1996-11-26 |
2 | // Created by: Philippe MANGIN |
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 <BRepBlend_AppSurface.ixx> |
18 | |
19 | #include <TColgp_Array1OfPnt.hxx> |
20 | #include <TColgp_Array1OfPnt2d.hxx> |
21 | #include <TColgp_Array1OfVec.hxx> |
22 | #include <TColgp_Array1OfVec2d.hxx> |
23 | #include <TColStd_Array1OfReal.hxx> |
24 | |
25 | #include <StdFail_NotDone.hxx> |
26 | |
27 | |
28 | BRepBlend_AppSurface::BRepBlend_AppSurface( |
29 | Handle(Approx_SweepFunction)& Func, |
30 | const Standard_Real First, |
31 | const Standard_Real Last, |
32 | const Standard_Real Tol3d, |
33 | const Standard_Real Tol2d, |
34 | const Standard_Real TolAngular, |
35 | const GeomAbs_Shape Continuity, |
36 | const Standard_Integer Degmax, |
37 | const Standard_Integer Segmax) : |
38 | approx(Func) |
39 | { |
40 | Standard_Integer Nb2d = Func->Nb2dCurves(); |
41 | Standard_Integer NbPolSect, NbKnotSect, udeg; |
42 | GeomAbs_Shape continuity = Continuity; |
43 | |
44 | // (1) Verification de la possibilite de derivation |
45 | if (continuity != GeomAbs_C0) { |
46 | if (Nb2d == 0) Nb2d =1; |
47 | Func->SectionShape(NbPolSect, NbKnotSect, udeg); |
48 | TColStd_Array1OfReal W (1, NbPolSect); |
49 | TColgp_Array1OfPnt P (1, NbPolSect); |
50 | TColgp_Array1OfPnt2d P2d(1, Nb2d); |
51 | TColgp_Array1OfVec V (1, NbPolSect); |
52 | TColgp_Array1OfVec2d V2d(1, Nb2d); |
53 | Standard_Boolean Ok; |
54 | if (continuity == GeomAbs_C2) { |
55 | Ok = Func->D2( First, First, Last, P, V, V, P2d, V2d, V2d, W, W, W); |
56 | if (!Ok) { continuity = GeomAbs_C1; } |
57 | } |
58 | if (continuity == GeomAbs_C1) { |
59 | Ok = (Func->D1(First, First, Last, P, V, P2d, V2d, W, W)); |
60 | if (!Ok) { continuity = GeomAbs_C0; } |
61 | } |
62 | } |
63 | |
64 | |
65 | // (2) Approximation |
66 | approx.Perform(First, Last, |
67 | Tol3d, Tol3d, Tol2d, TolAngular, |
68 | continuity, Degmax, Segmax); |
69 | } |
70 | |
71 | void BRepBlend_AppSurface::SurfShape (Standard_Integer& UDegree, |
72 | Standard_Integer& VDegree, |
73 | Standard_Integer& NbUPoles, |
74 | Standard_Integer& NbVPoles, |
75 | Standard_Integer& NbUKnots, |
76 | Standard_Integer& NbVKnots) const |
77 | { |
78 | approx.SurfShape(UDegree, VDegree, |
79 | NbUPoles, NbVPoles, |
80 | NbUKnots,NbVKnots); |
81 | } |
82 | |
83 | |
84 | void BRepBlend_AppSurface::Surface(TColgp_Array2OfPnt& TPoles, |
85 | TColStd_Array2OfReal& TWeights, |
86 | TColStd_Array1OfReal& TUKnots, |
87 | TColStd_Array1OfReal& TVKnots, |
88 | TColStd_Array1OfInteger& TUMults, |
89 | TColStd_Array1OfInteger& TVMults) const |
90 | |
91 | { |
92 | approx.Surface(TPoles, TWeights, TUKnots,TVKnots, TUMults,TVMults); |
93 | } |
94 | |
95 | |
96 | Standard_Real BRepBlend_AppSurface::MaxErrorOnSurf() const |
97 | { |
98 | return approx.MaxErrorOnSurf(); |
99 | } |
100 | |
101 | |
102 | void BRepBlend_AppSurface::Curves2dShape(Standard_Integer& Degree, |
103 | Standard_Integer& NbPoles, |
104 | Standard_Integer& NbKnots) const |
105 | { |
106 | approx.Curves2dShape( Degree, NbPoles, NbKnots); |
107 | } |
108 | |
109 | void BRepBlend_AppSurface::Curve2d(const Standard_Integer Index, |
110 | TColgp_Array1OfPnt2d& TPoles, |
111 | TColStd_Array1OfReal& TKnots, |
112 | TColStd_Array1OfInteger& TMults) const |
113 | { |
114 | approx.Curve2d(Index, TPoles, TKnots, TMults); |
115 | } |
116 | |
117 | Standard_Real BRepBlend_AppSurface::Max2dError(const Standard_Integer Index) const |
118 | { |
119 | return approx.Max2dError(Index); |
120 | } |
121 | |
122 | |
123 | Standard_Real BRepBlend_AppSurface::TolCurveOnSurf(const Standard_Integer Index) const |
124 | { |
125 | return approx.TolCurveOnSurf(Index); |
126 | } |
127 | |
128 | inline void BRepBlend_AppSurface::TolReached (Standard_Real& Tol3d, |
129 | Standard_Real& Tol2d) const |
130 | { |
131 | Tol3d = approx.MaxErrorOnSurf(); |
132 | Tol2d = 0; |
133 | for (Standard_Integer ii=1; ii<=approx.NbCurves2d(); ii++) { |
134 | Tol2d = Max(Tol2d, approx.Max2dError(ii)); |
135 | } |
136 | } |
137 | |
138 | void BRepBlend_AppSurface::Dump(Standard_OStream& o) const |
139 | { |
140 | approx.Dump(o); |
141 | } |