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 #include <GCE2d_MakeArcOfEllipse.ixx>
  18 #include <Geom2d_Ellipse.hxx>
  19 #include <ElCLib.hxx>
  20 #include <StdFail_NotDone.hxx>
  21
  22 GCE2d_MakeArcOfEllipse::GCE2d_MakeArcOfEllipse(const gp_Elips2d&      Elips ,
  23                                                const gp_Pnt2d&        P1    ,
  24                                                const gp_Pnt2d&        P2    ,
  25                                                const Standard_Boolean Sense )
  26 {
  27   Standard_Real Alpha1 = ElCLib::Parameter(Elips,P1);
  28   Standard_Real Alpha2 = ElCLib::Parameter(Elips,P2);
  29   Handle(Geom2d_Ellipse) E = new Geom2d_Ellipse(Elips);
  30   TheArc = new Geom2d_TrimmedCurve(E,Alpha1,Alpha2,Sense);
  31   TheError = gce_Done;
  32 }
  33
  34 GCE2d_MakeArcOfEllipse::GCE2d_MakeArcOfEllipse(const gp_Elips2d&      Elips ,
  35                                                const gp_Pnt2d&        P     ,
  36                                                const Standard_Real    Alpha ,
  37                                                const Standard_Boolean Sense )
  38 {
  39   Standard_Real Alphafirst = ElCLib::Parameter(Elips,P);
  40   Handle(Geom2d_Ellipse) E = new Geom2d_Ellipse(Elips);
  41   TheArc = new Geom2d_TrimmedCurve(E,Alphafirst,Alpha,Sense);
  42   TheError = gce_Done;
  43 }
  44
  45 GCE2d_MakeArcOfEllipse::GCE2d_MakeArcOfEllipse(const gp_Elips2d&      Elips  ,
  46                                                const Standard_Real    Alpha1 ,
  47                                                const Standard_Real    Alpha2 ,
  48                                                const Standard_Boolean Sense  )
  49 {
  50   Handle(Geom2d_Ellipse) E = new Geom2d_Ellipse(Elips);
  51   TheArc = new Geom2d_TrimmedCurve(E,Alpha1,Alpha2,Sense);
  52   TheError = gce_Done;
  53 }
  54
  55 const Handle(Geom2d_TrimmedCurve)& GCE2d_MakeArcOfEllipse::Value() const
  56 {
  57   StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
  58   return TheArc;
  59 }
  60
  61 const Handle(Geom2d_TrimmedCurve)& GCE2d_MakeArcOfEllipse::Operator() const
  62 {
  63   return Value();
  64 }
  65
  66 GCE2d_MakeArcOfEllipse::operator Handle(Geom2d_TrimmedCurve) () const
  67 {
  68   return Value();
  69 }
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