src/GCE2d/GCE2d_MakeSegment.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_MakeSegment.ixx>
  18 #include <GCE2d_MakeLine.hxx>
  19 #include <StdFail_NotDone.hxx>
  20 #include <Geom2d_Line.hxx>
  21 #include <ElCLib.hxx>
  22
  23 GCE2d_MakeSegment::GCE2d_MakeSegment(const gp_Pnt2d& P1 ,
  24                                      const gp_Dir2d& V  ,
  25                                      const gp_Pnt2d& P2 )
  26 {
  27   gp_Lin2d Line(P1,V);
  28   Standard_Real Ulast = ElCLib::Parameter(Line,P2);
  29   if (Ulast != 0.0) {
  30     Handle(Geom2d_Line) L = new Geom2d_Line(Line);
  31     TheSegment = new Geom2d_TrimmedCurve(L,0.0,Ulast,Standard_True);
  32     TheError = gce_Done;
  33   }
  34   else { TheError = gce_ConfusedPoints; }
  35 }
  36
  37 GCE2d_MakeSegment::GCE2d_MakeSegment(const gp_Pnt2d& P1 ,
  38                                      const gp_Pnt2d& P2 )
  39 {
  40   Standard_Real dist = P1.Distance(P2);
  41   if (dist != 0.0) {
  42     Handle(Geom2d_Line) L = GCE2d_MakeLine(P1,P2);
  43     TheSegment = new Geom2d_TrimmedCurve(L,0.,dist,Standard_True);
  44     TheError = gce_Done;
  45   }
  46   else { TheError = gce_ConfusedPoints; }
  47 }
  48 GCE2d_MakeSegment::GCE2d_MakeSegment(const gp_Lin2d&     Line  ,
  49                                      const gp_Pnt2d&     Point ,
  50                                      const Standard_Real U     )
  51 {
  52   Standard_Real Ufirst = ElCLib::Parameter(Line,Point);
  53   Handle(Geom2d_Line) L = new Geom2d_Line(Line);
  54   TheSegment=new Geom2d_TrimmedCurve(L,Ufirst,U,Standard_True);
  55   TheError = gce_Done;
  56 }
  57
  58 GCE2d_MakeSegment::GCE2d_MakeSegment(const gp_Lin2d& Line  ,
  59                                      const gp_Pnt2d& P1    ,
  60                                      const gp_Pnt2d& P2    )
  61 {
  62   Standard_Real Ufirst = ElCLib::Parameter(Line,P1);
  63   Standard_Real Ulast = ElCLib::Parameter(Line,P2);
  64   Handle(Geom2d_Line) L = new Geom2d_Line(Line);
  65   TheSegment = new Geom2d_TrimmedCurve(L,Ufirst,Ulast,Standard_True);
  66   TheError = gce_Done;
  67 }
  68
  69 GCE2d_MakeSegment::GCE2d_MakeSegment(const gp_Lin2d&     Line  ,
  70                                      const Standard_Real U1    ,
  71                                      const Standard_Real U2    )
  72 {
  73   Handle(Geom2d_Line) L = new Geom2d_Line(Line);
  74   TheSegment = new Geom2d_TrimmedCurve(L,U1,U2,Standard_True);
  75   TheError = gce_Done;
  76 }
  77
  78 const Handle(Geom2d_TrimmedCurve)& GCE2d_MakeSegment::Value() const
  79 {
  80   StdFail_NotDone_Raise_if(TheError != gce_Done,"");
  81   return TheSegment;
  82 }