src/DsgPrs/DsgPrs_FilletRadiusPresentation.cxx

   1 // File:        DsgPrs_FilletRadiusPresentation.cxx
   2 // Created:     Mon Dec  8 12:00:59 1997
   3 // Author:      Serguei ZARITCHNY
   4 //              <xab@zozox.paris1.matra-dtv.fr>
   5
   6
   7 #include <DsgPrs_FilletRadiusPresentation.ixx>
   8
   9 #include <gp_Lin.hxx>
  10 #include <gp_Dir.hxx>
  11 #include <ElCLib.hxx>
  12 #include <Graphic3d_Group.hxx>
  13 #include <Graphic3d_Array1OfVertex.hxx>
  14 #include <Prs3d_LengthAspect.hxx>
  15 #include <Prs3d_Arrow.hxx>
  16 #include <Prs3d_ArrowAspect.hxx>
  17 #include <Prs3d_LineAspect.hxx>
  18 #include <Prs3d_Text.hxx>
  19 #include <TCollection_AsciiString.hxx>
  20 #include <TCollection_ExtendedString.hxx>
  21
  22 #include <ElCLib.hxx>
  23
  24 #include <Graphic3d_Vertex.hxx>
  25 #include <Graphic3d_AspectMarker3d.hxx>
  26 #include <Graphic3d_AspectLine3d.hxx>
  27 #include <Aspect_TypeOfLine.hxx>
  28 #include <Aspect_TypeOfMarker.hxx>
  29 #include <Aspect_AspectMarker.hxx>
  30 #include <Quantity_Color.hxx>
  31 #include <DsgPrs.hxx>
  32 #include <Precision.hxx>
  33
  34 #include <Geom_Circle.hxx>
  35 #include <Geom_Line.hxx>
  36 #include <GeomAPI_ExtremaCurveCurve.hxx>
  37
  38 //pop pour NT
  39 //#if WNT
  40 #include <stdio.h>
  41 //#endif
  42 //=======================================================================
  43 //function : Add
  44 //purpose  :
  45 //=======================================================================
  46
  47 void DsgPrs_FilletRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
  48                                            const Handle(Prs3d_Drawer)& aDrawer,
  49                                            const Standard_Real theval,
  50                                            const TCollection_ExtendedString & aText,
  51                                            const gp_Pnt & aPosition,
  52                                            const gp_Dir & aNormalDir,
  53                                            const gp_Pnt & aBasePnt,
  54                                            const gp_Pnt & aFirstPoint,
  55                                            const gp_Pnt & aSecondPoint,
  56                                            const gp_Pnt & aCenter,
  57                                            const DsgPrs_ArrowSide ArrowPrs,
  58                                            const Standard_Boolean drawRevers,
  59                                                  gp_Pnt & DrawPosition,
  60                                                  gp_Pnt & EndOfArrow,
  61                                                  Handle(Geom_TrimmedCurve)& TrimCurve,
  62                                                  Standard_Boolean & HasCircle )
  63 {
  64   char valcar[80];
  65   sprintf(valcar,"%5.2f",theval);
  66   Standard_Real FirstParCirc, LastParCirc;
  67   Standard_Boolean SpecCase;
  68   gp_Dir DirOfArrow;
  69   gp_Circ FilletCirc;
  70   //  gp_Pnt NewPosition, EndOfArrow;
  71   Handle( Prs3d_LengthAspect ) LA = aDrawer->LengthAspect();
  72   Prs3d_Root::CurrentGroup( aPresentation )->SetPrimitivesAspect( LA->LineAspect()->Aspect() );
  73   Standard_Real ArrowLength = LA->Arrow1Aspect()->Length();
  74   DsgPrs::ComputeFilletRadiusPresentation( ArrowLength,
  75                                            theval,
  76                                            aPosition,
  77                                            aNormalDir,
  78                                            aFirstPoint,
  79                                            aSecondPoint,
  80                                            aCenter,
  81                                            aBasePnt,
  82                                            drawRevers,
  83                                            SpecCase,
  84                                            FilletCirc,
  85                                            FirstParCirc,
  86                                            LastParCirc,
  87                                            EndOfArrow,
  88                                            DirOfArrow,
  89                                            DrawPosition //NewPosition
  90                                            );
  91   // Creating the fillet's arc
  92   if( !SpecCase )
  93     {
  94       Standard_Real Alpha = Abs(LastParCirc - FirstParCirc);
  95       Standard_Integer NodeNumber = Max (4 , Standard_Integer (50. * Alpha / PI));
  96       Graphic3d_Array1OfVertex ApproxArc( 0, NodeNumber-1 );
  97       Standard_Real delta = Alpha / ( NodeNumber - 1 );
  98       gp_Pnt CurPnt;
  99       for (Standard_Integer i = 0 ; i < NodeNumber; i++)
 100         {
 101           CurPnt =  ElCLib::Value( FirstParCirc, FilletCirc );
 102           ApproxArc(i).SetCoord( CurPnt.X(), CurPnt.Y(), CurPnt.Z() );
 103           FirstParCirc += delta ;
 104         }
 105       Prs3d_Root::CurrentGroup( aPresentation )->Polyline( ApproxArc );
 106       HasCircle = Standard_True;
 107       Handle(Geom_Circle) Circle = new Geom_Circle( FilletCirc );
 108       TrimCurve = new Geom_TrimmedCurve( Circle,  FirstParCirc, LastParCirc );
 109     }
 110   else // null or PI anle or Radius = 0
 111     {
 112       HasCircle = Standard_False;
 113     }
 114
 115   // Line from position to intersection point on fillet's circle (EndOfArrow)
 116   Graphic3d_Array1OfVertex Vrap(1,2);
 117   Vrap(1).SetCoord(DrawPosition.X(),
 118                    DrawPosition.Y(),
 119                    DrawPosition.Z());
 120   Vrap(2).SetCoord( EndOfArrow.X(), EndOfArrow.Y(), EndOfArrow.Z() );
 121   Prs3d_Root::CurrentGroup( aPresentation )->Polyline( Vrap );
 122   // Drawing the text
 123   Prs3d_Text::Draw(aPresentation, LA->TextAspect(), aText, DrawPosition);
 124
 125   // Add presentation of arrows
 126   DsgPrs::ComputeSymbol( aPresentation, LA, EndOfArrow, EndOfArrow, DirOfArrow, DirOfArrow, ArrowPrs );
 127
 128 }
 129