0024023: Revamp the OCCT Handle -- downcast (automatic)
[occt.git] / src / BRepGProp / BRepGProp_EdgeTool.cxx
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b311480e 1// Copyright (c) 1995-1999 Matra Datavision
973c2be1 2// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 3//
973c2be1 4// This file is part of Open CASCADE Technology software library.
b311480e 5//
d5f74e42 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
973c2be1 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.
b311480e 11//
973c2be1 12// Alternatively, this file may be used under the terms of Open CASCADE
13// commercial license or contractual agreement.
7fd59977 14
15#include <BRepGProp_EdgeTool.ixx>
16#include <GeomAdaptor_Curve.hxx>
17#include <Geom_Curve.hxx>
18#include <Geom_BezierCurve.hxx>
19#include <Geom_BSplineCurve.hxx>
20
21Standard_Real BRepGProp_EdgeTool::FirstParameter(const BRepAdaptor_Curve& C)
22{
23 return C.FirstParameter();
24}
25
26Standard_Real BRepGProp_EdgeTool::LastParameter(const BRepAdaptor_Curve& C)
27{
28 return C.LastParameter();
29}
30
31Standard_Integer BRepGProp_EdgeTool::IntegrationOrder(const BRepAdaptor_Curve& BAC)
32{
33 switch (BAC.GetType()) {
34
35 case GeomAbs_Line :
36 return 2;
37
38 case GeomAbs_Parabola :
39 return 5;
40
41 case GeomAbs_BezierCurve :
42 {
43 const GeomAdaptor_Curve& GAC = BAC.Curve();
44 const Handle(Geom_Curve)& GC = GAC.Curve();
c5f3a425 45 Handle(Geom_BezierCurve) GBZC (Handle(Geom_BezierCurve)::DownCast (GC));
7fd59977 46 Standard_Integer n = 2*(GBZC->NbPoles()) - 1;
47 return n;
48 }
49 break;
50 case GeomAbs_BSplineCurve :
51 {
52 const GeomAdaptor_Curve& GAC = BAC.Curve();
53 const Handle(Geom_Curve)& GC = GAC.Curve();
c5f3a425 54 Handle(Geom_BSplineCurve) GBSC (Handle(Geom_BSplineCurve)::DownCast (GC));
7fd59977 55 Standard_Integer n = 2*(GBSC->NbPoles()) - 1;
56 return n;
57 }
58 break;
59
60 default :
61 return 10;
62 }
7fd59977 63}
64
65gp_Pnt BRepGProp_EdgeTool::Value(const BRepAdaptor_Curve& C, const Standard_Real U)
66{
67 return C.Value(U);
68}
69
70void BRepGProp_EdgeTool::D1(const BRepAdaptor_Curve& C,
71 const Standard_Real U, gp_Pnt& P, gp_Vec& V1)
72{
73 C.D1(U,P,V1);
74}
75
76// modified by NIZHNY-MKK Thu Jun 9 12:15:15 2005.BEGIN
77Standard_Integer BRepGProp_EdgeTool::NbIntervals(const BRepAdaptor_Curve& C,const GeomAbs_Shape S)
78{
79 BRepAdaptor_Curve* pC = (BRepAdaptor_Curve*) &C; // at the moment actually NbIntervals() does not modify the
80 // object "C". So it is safe to do such a cast.
81 return pC->NbIntervals(S);
82}
83
84void BRepGProp_EdgeTool::Intervals(const BRepAdaptor_Curve& C,TColStd_Array1OfReal& T,const GeomAbs_Shape S)
85{
86 BRepAdaptor_Curve* pC = (BRepAdaptor_Curve*) &C; // at the moment actually Intervals() does not modify the
87 // object "C". So it is safe to do such a cast.
88 pC->Intervals(T, S);
89}
90// modified by NIZHNY-MKK Thu Jun 9 12:15:18 2005.END