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_MakeParab2d.hxx>
20 #include <gp_Ax2d.hxx>
21 #include <gp_Ax22d.hxx>
22 #include <gp_Parab2d.hxx>
23 #include <gp_Pnt2d.hxx>
24 #include <StdFail_NotDone.hxx>
26 gce_MakeParab2d::gce_MakeParab2d(const gp_Ax22d& A ,
27 const Standard_Real Focal )
29 if (Focal < 0.0) { TheError = gce_NullFocusLength; }
31 TheParab2d = gp_Parab2d(A,Focal);
36 gce_MakeParab2d::gce_MakeParab2d(const gp_Ax2d& MirrorAxis ,
37 const Standard_Real Focal ,
38 const Standard_Boolean Sense )
40 if (Focal < 0.0) { TheError = gce_NullFocusLength; }
42 TheParab2d = gp_Parab2d(MirrorAxis,Focal,Sense);
47 gce_MakeParab2d::gce_MakeParab2d(const gp_Ax2d& D ,
49 const Standard_Boolean Sense )
51 TheParab2d = gp_Parab2d(D,F,Sense);
55 //=========================================================================
56 // Creation d une Parabole 2d de gp de centre <Center> et de sommet +
58 // <CenterS1> donne le grand axe . +
59 // <S1> donne la focale. +
60 //=========================================================================
62 gce_MakeParab2d::gce_MakeParab2d(const gp_Pnt2d& S ,
63 const gp_Pnt2d& Center ,
64 const Standard_Boolean Sense )
66 if (S.Distance(Center) >= gp::Resolution()) {
67 gp_Dir2d XAxis(gp_XY(S.XY()-Center.XY()));
68 TheParab2d = gp_Parab2d(gp_Ax2d(Center,XAxis),S.Distance(Center),Sense);
71 else { TheError = gce_NullAxis; }
74 const gp_Parab2d& gce_MakeParab2d::Value () const
76 StdFail_NotDone_Raise_if (TheError != gce_Done,
77 "gce_MakeParab2d::Value() - no result");
81 const gp_Parab2d& gce_MakeParab2d::Operator() const
86 gce_MakeParab2d::operator gp_Parab2d() const