1 // Created on: 1992-09-02
2 // Created by: Remi GILET
3 // Copyright (c) 1992-1999 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 <gce_MakeElips2d.hxx>
20 #include <gp_Ax2d.hxx>
21 #include <gp_Ax22d.hxx>
22 #include <gp_Elips2d.hxx>
23 #include <gp_Lin2d.hxx>
24 #include <gp_Pnt2d.hxx>
25 #include <StdFail_NotDone.hxx>
27 //=========================================================================
28 // Creation d une Ellipse 2d de gp de centre <Center> et de sommets +
30 // <CenterS1> donne le grand axe . +
31 // <S1> donne le grand rayon et <S2> le petit rayon. +
32 //=========================================================================
33 gce_MakeElips2d::gce_MakeElips2d(const gp_Pnt2d& S1 ,
35 const gp_Pnt2d& Center )
37 Standard_Real D1 = S1.Distance(Center);
38 gp_Dir2d XAxis(gp_XY(S1.XY()-Center.XY()));
39 gp_Dir2d YAxis(gp_XY(S2.XY()-Center.XY()));
40 Standard_Real D2 = gp_Lin2d(Center,XAxis).Distance(S2);
41 if (D1 < D2) { TheError = gce_InvertAxis; }
42 else if (D2 < gp::Resolution()) { TheError = gce_NullAxis; }
44 TheElips2d = gp_Elips2d(gp_Ax22d(Center,XAxis,YAxis),D1,D2);
49 gce_MakeElips2d::gce_MakeElips2d(const gp_Ax2d& MajorAxis ,
50 const Standard_Real MajorRadius ,
51 const Standard_Real MinorRadius ,
52 const Standard_Boolean Sense )
54 if (MajorRadius < 0.0) { TheError = gce_NegativeRadius; }
55 else if (MajorRadius < MinorRadius) { TheError = gce_InvertRadius; }
57 TheElips2d = gp_Elips2d(MajorAxis,MajorRadius,MinorRadius,Sense);
62 gce_MakeElips2d::gce_MakeElips2d(const gp_Ax22d& A ,
63 const Standard_Real MajorRadius ,
64 const Standard_Real MinorRadius )
66 if (MajorRadius < 0.0) { TheError = gce_NegativeRadius; }
67 else if (MajorRadius < MinorRadius) { TheError = gce_InvertRadius; }
69 TheElips2d = gp_Elips2d(A,MajorRadius,MinorRadius);
74 const gp_Elips2d& gce_MakeElips2d::Value() const
76 StdFail_NotDone_Raise_if (TheError != gce_Done,
77 "gce_MakeElips2d::Value() - no result");
81 const gp_Elips2d& gce_MakeElips2d::Operator() const
86 gce_MakeElips2d::operator gp_Elips2d() const