1c8a520675b2ac161de5aa27dbd02616d105dfda
[occt.git] / src / GCE2d / GCE2d_MakeArcOfEllipse.cxx
1 // Created on: 1992-10-02
2 // Created by: Remi GILET
3 // Copyright (c) 1992-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
5 //
6 // This file is part of Open CASCADE Technology software library.
7 //
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.
13 //
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
16
17
18 #include <ElCLib.hxx>
19 #include <GCE2d_MakeArcOfEllipse.hxx>
20 #include <Geom2d_Ellipse.hxx>
21 #include <Geom2d_TrimmedCurve.hxx>
22 #include <gp_Elips2d.hxx>
23 #include <gp_Pnt2d.hxx>
24 #include <StdFail_NotDone.hxx>
25
26 GCE2d_MakeArcOfEllipse::GCE2d_MakeArcOfEllipse(const gp_Elips2d&      Elips ,
27                                                const gp_Pnt2d&        P1    ,
28                                                const gp_Pnt2d&        P2    ,
29                                                const Standard_Boolean Sense ) 
30 {
31   Standard_Real Alpha1 = ElCLib::Parameter(Elips,P1);
32   Standard_Real Alpha2 = ElCLib::Parameter(Elips,P2);
33   Handle(Geom2d_Ellipse) E = new Geom2d_Ellipse(Elips);
34   TheArc = new Geom2d_TrimmedCurve(E,Alpha1,Alpha2,Sense);
35   TheError = gce_Done;
36 }
37
38 GCE2d_MakeArcOfEllipse::GCE2d_MakeArcOfEllipse(const gp_Elips2d&      Elips ,
39                                                const gp_Pnt2d&        P     ,
40                                                const Standard_Real    Alpha ,
41                                                const Standard_Boolean Sense ) 
42 {
43   Standard_Real Alphafirst = ElCLib::Parameter(Elips,P);
44   Handle(Geom2d_Ellipse) E = new Geom2d_Ellipse(Elips);
45   TheArc = new Geom2d_TrimmedCurve(E,Alphafirst,Alpha,Sense);
46   TheError = gce_Done;
47 }
48
49 GCE2d_MakeArcOfEllipse::GCE2d_MakeArcOfEllipse(const gp_Elips2d&      Elips  ,
50                                                const Standard_Real    Alpha1 ,
51                                                const Standard_Real    Alpha2 ,
52                                                const Standard_Boolean Sense  ) 
53 {
54   Handle(Geom2d_Ellipse) E = new Geom2d_Ellipse(Elips);
55   TheArc = new Geom2d_TrimmedCurve(E,Alpha1,Alpha2,Sense);
56   TheError = gce_Done;
57 }
58
59 const Handle(Geom2d_TrimmedCurve)& GCE2d_MakeArcOfEllipse::Value() const
60
61   StdFail_NotDone_Raise_if(TheError != gce_Done,"");
62   return TheArc;
63 }