1 // Created on: 1995-07-17
2 // Created by: Modelistation
3 // Copyright (c) 1995-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
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
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.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
18 #include <BRepAdaptor_Curve.hxx>
19 #include <Geom_BezierCurve.hxx>
20 #include <Geom_BSplineCurve.hxx>
21 #include <GeomAbs_CurveType.hxx>
22 #include <GeomAbs_Shape.hxx>
25 #include <HLRBRep_BCurveTool.hxx>
26 #include <Standard_DomainError.hxx>
27 #include <Standard_NoSuchObject.hxx>
28 #include <Standard_OutOfRange.hxx>
29 #include <TColgp_Array1OfPnt.hxx>
30 #include <TColStd_Array1OfReal.hxx>
32 //=======================================================================
33 //function : NbSamples
35 //=======================================================================
37 HLRBRep_BCurveTool::NbSamples (const BRepAdaptor_Curve& C,
38 const Standard_Real U0,
39 const Standard_Real U1)
41 GeomAbs_CurveType typC = C.GetType();
42 static Standard_Real nbsOther = 10.0;
43 Standard_Real nbs = nbsOther;
45 if(typC == GeomAbs_Line)
47 else if(typC == GeomAbs_BezierCurve)
48 nbs = 3 + C.NbPoles();
49 else if(typC == GeomAbs_BSplineCurve) {
52 nbs*= C.LastParameter()- C.FirstParameter();
58 return((Standard_Integer)nbs);
61 //=======================================================================
64 //=======================================================================
66 void HLRBRep_BCurveTool::Poles(const BRepAdaptor_Curve& C,
67 TColgp_Array1OfPnt& T)
69 if(C.GetType() == GeomAbs_BezierCurve)
71 else if(C.GetType() == GeomAbs_BSplineCurve)
72 C.BSpline()->Poles(T);
75 //=======================================================================
76 //function : PolesAndWeights
78 //=======================================================================
80 void HLRBRep_BCurveTool::PolesAndWeights(const BRepAdaptor_Curve& C,
81 TColgp_Array1OfPnt& T,
82 TColStd_Array1OfReal& W)
84 if(C.GetType() == GeomAbs_BezierCurve) {
85 const Handle(Geom_BezierCurve) HB = C.Bezier();
89 else if(C.GetType() == GeomAbs_BSplineCurve) {
90 const Handle(Geom_BSplineCurve) HB = C.BSpline();
96 //=======================================================================
99 //=======================================================================
101 Handle(Geom_BezierCurve)
102 HLRBRep_BCurveTool::Bezier (const BRepAdaptor_Curve& C)
103 { return(C.Bezier()); }
105 //=======================================================================
108 //=======================================================================
110 Handle(Geom_BSplineCurve)
111 HLRBRep_BCurveTool::BSpline (const BRepAdaptor_Curve& C)
112 { return(C.BSpline()); }