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Integration of OCCT 6.5.0 from SVN
[occt.git] / src / ShapeUpgrade / ShapeUpgrade_FixSmallBezierCurves.cxx
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7fd59977 1// File: ShapeUpgrade_FixSmallBezierCurves.cxx
2// Created: Wed Jun 7 17:54:42 2000
3// Author: Galina KULIKOVA
4// <gka@zamox.nnov.matra-dtv.fr>
5
6
7#include <ShapeUpgrade_FixSmallBezierCurves.ixx>
8#include <TopoDS_Edge.hxx>
9#include <Geom_Curve.hxx>
10#include <Geom2d_Curve.hxx>
11#include <gp_Pnt.hxx>
12#include <ShapeAnalysis_Edge.hxx>
13#include <TopExp.hxx>
14#include <BRep_Tool.hxx>
15#include <gp_Pnt2d.hxx>
16#include <Geom2dConvert_ApproxCurve.hxx>
17#include <TColGeom_HArray1OfCurve.hxx>
18#include <ShapeExtend.hxx>
19#include <TColGeom2d_HArray1OfCurve.hxx>
20#include <GeomAdaptor_Surface.hxx>
21#include <Geom_Surface.hxx>
22#include <BRep_Tool.hxx>
23#include <TopoDS.hxx>
24#include <TopoDS_Shape.hxx>
25#include <Geom2d_TrimmedCurve.hxx>
26#include <GeomAbs_Shape.hxx>
27#include <TopLoc_Location.hxx>
28#include <GeomConvert_ApproxCurve.hxx>
29#include <Geom_TrimmedCurve.hxx>
30#include <GeomConvert_ApproxCurve.hxx>
31#include <ShapeUpgrade_SplitCurve3d.hxx>
32#include <ShapeUpgrade_SplitCurve2d.hxx>
33#include <GeomAdaptor_Surface.hxx>
34#include <Standard_ErrorHandler.hxx>
35#include <Standard_Failure.hxx>
36ShapeUpgrade_FixSmallBezierCurves::ShapeUpgrade_FixSmallBezierCurves()
37{
38}
39
40Standard_Boolean ShapeUpgrade_FixSmallBezierCurves::Approx(Handle(Geom_Curve)& Curve3d,Handle(Geom2d_Curve)& Curve2d,Handle(Geom2d_Curve)& Curve2dR,Standard_Real& First,Standard_Real& Last)
41{
42
43 ShapeAnalysis_Edge sae;
44 Handle(Geom_Curve) c3d;
45 Standard_Real f,l;
46 if(sae.Curve3d(myEdge,c3d,f,l,Standard_False)) {
47 if(First < f)
48 First = f;
49 if(Last > l)
50 Last =l;
51 Handle(Geom_TrimmedCurve) trc = new Geom_TrimmedCurve(c3d,First,Last);
52 GeomAbs_Shape aCont = (GeomAbs_Shape)trc->Continuity();
53 if(aCont == GeomAbs_C3 || aCont == GeomAbs_CN)
54 aCont = GeomAbs_C2;
55 try {
56 OCC_CATCH_SIGNALS
57 GeomConvert_ApproxCurve AproxCurve(trc,Precision(),aCont,1,9);
58 if(AproxCurve.IsDone()) {
59 Handle(Geom_Curve) newCurve = AproxCurve.Curve();
60 mySplitCurve3dTool->Init(AproxCurve.Curve(),First,Last);
61 mySplitCurve3dTool->Perform(Standard_True);
62 if (!mySplitCurve3dTool->Status ( ShapeExtend_FAIL )) {
63 Handle(TColGeom_HArray1OfCurve) theSegments3d;
64 theSegments3d = mySplitCurve3dTool->GetCurves();
65 if(theSegments3d->Length() >1) return Standard_False;
66 Curve3d = theSegments3d->Value(1);
67 }
68 }
69 }
70 catch (Standard_Failure) {
71#ifdef DEB
72 cout << "Warning: ShapeUpgrade_FixSmallBezierCurve::Approx(): Exception in Segment :";
73 Standard_Failure::Caught()->Print(cout); cout << endl;
74#endif
75 return Standard_False;
76 }
77 }
78 if ( myFace.IsNull() ) return Standard_True;
79 Handle(Geom2d_Curve) c2d;
80 TopLoc_Location L;
81 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(myFace,L);
82 GeomAdaptor_Surface ads(aSurf);// = new GeomAdaptor_Surface(aSurf);
83 Standard_Real prec = Max(ads.UResolution(Precision()),ads.VResolution(Precision()));
84 if(sae.PCurve(myEdge,myFace,c2d,f,l,Standard_False)) {
85 if(First < f)
86 First = f;
87 if(Last > l)
88 Last =l;
89 Handle(Geom2d_TrimmedCurve) trc2d = new Geom2d_TrimmedCurve(c2d,First,Last);
90 GeomAbs_Shape aCont = (GeomAbs_Shape)trc2d->Continuity();
91 try {
92 OCC_CATCH_SIGNALS
93 Geom2dConvert_ApproxCurve AproxCurve2d(trc2d,prec,aCont,1,9);
94 if(AproxCurve2d.IsDone()) {
95 Handle(Geom2d_Curve) newCurve = AproxCurve2d.Curve();
96 mySplitCurve2dTool->Init(AproxCurve2d.Curve(),First,Last);
97 mySplitCurve2dTool->Perform(Standard_True);
98 if ( mySplitCurve2dTool->Status ( ShapeExtend_FAIL ))
99 return Standard_False;
100 Handle(TColGeom2d_HArray1OfCurve) theSegments2d;
101 theSegments2d = mySplitCurve2dTool->GetCurves();
102 if(theSegments2d->Length() >1) return Standard_False; //ShapeAnalysis_Surface
103 Curve2d = theSegments2d->Value(1);
104 }
105 }
106 catch (Standard_Failure) {
107#ifdef DEB
108 cout << "Warning: ShapeUpgrade_FixSmallBezierCurve::Approx(): Exception in Segment :";
109 Standard_Failure::Caught()->Print(cout); cout << endl;
110#endif
111 return Standard_False;
112 }
113 }
114 Standard_Boolean isSeam = BRep_Tool::IsClosed ( myEdge, myFace );
115 if ( isSeam ) {
116 Handle(Geom2d_Curve) c2;
117 Standard_Real f2, l2;
118 //smh#8
119 TopoDS_Shape tmpE = myEdge.Reversed();
120 TopoDS_Edge erev = TopoDS::Edge (tmpE );
121 if ( sae.PCurve ( erev, myFace, c2, f2, l2, Standard_False) ) {
122 if(First > f)
123 First = f;
124 if(Last > l)
125 Last =l;
126 Handle(Geom2d_TrimmedCurve) trc2d = new Geom2d_TrimmedCurve(c2,First,Last);
127 GeomAbs_Shape aCont = trc2d->Continuity();
128 Geom2dConvert_ApproxCurve AproxCurve2d(trc2d,prec,aCont,1,9);
129 try {
130 OCC_CATCH_SIGNALS
131 if(AproxCurve2d.IsDone()) {
132 Handle(Geom2d_Curve) newCurve = AproxCurve2d.Curve();
133 mySplitCurve2dTool->Init(AproxCurve2d.Curve(),First,Last);
134 mySplitCurve2dTool->Perform(Standard_True);
135 if ( ! mySplitCurve2dTool->Status ( ShapeExtend_DONE ))
136 return Standard_False;
137 Handle(TColGeom2d_HArray1OfCurve) theSegments2d;
138 theSegments2d = mySplitCurve2dTool->GetCurves();
139 if(theSegments2d->Length() >1) return Standard_False; //ShapeAnalysis_Surface
140 Curve2dR = theSegments2d->Value(1);
141 }
142 }
143 catch (Standard_Failure) {
144#ifdef DEB
145 cout << "Warning: ShapeUpgrade_FixSmallBezierCurve::Approx(): Exception in Segment :";
146 Standard_Failure::Caught()->Print(cout); cout << endl;
147#endif
148 return Standard_False;
149 }
150 }
151 }
152 return Standard_True;
153}
154
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