src/DsgPrs/DsgPrs_FilletRadiusPresentation.cxx

   1 // Created on: 1997-12-08
   2 // Created by: Serguei ZARITCHNY
   3 // Copyright (c) 1997-1999 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 <DsgPrs_FilletRadiusPresentation.hxx>
  18
  19 #include <DsgPrs.hxx>
  20 #include <ElCLib.hxx>
  21 #include <Geom_Circle.hxx>
  22 #include <Geom_Line.hxx>
  23 #include <Geom_TrimmedCurve.hxx>
  24 #include <GeomAPI_ExtremaCurveCurve.hxx>
  25 #include <gp_Dir.hxx>
  26 #include <gp_Lin.hxx>
  27 #include <gp_Pnt.hxx>
  28 #include <Graphic3d_ArrayOfPolylines.hxx>
  29 #include <Graphic3d_ArrayOfSegments.hxx>
  30 #include <Graphic3d_AspectLine3d.hxx>
  31 #include <Graphic3d_AspectMarker3d.hxx>
  32 #include <Graphic3d_Group.hxx>
  33 #include <Precision.hxx>
  34 #include <Prs3d_Arrow.hxx>
  35 #include <Prs3d_ArrowAspect.hxx>
  36 #include <Prs3d_DimensionAspect.hxx>
  37 #include <Prs3d_LineAspect.hxx>
  38 #include <Prs3d_Presentation.hxx>
  39 #include <Prs3d_Text.hxx>
  40 #include <TCollection_AsciiString.hxx>
  41 #include <TCollection_ExtendedString.hxx>
  42
  43 #include <stdio.h>
  44 //=======================================================================
  45 //function : Add
  46 //purpose  :
  47 //=======================================================================
  48 void DsgPrs_FilletRadiusPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation,
  49                                            const Handle(Prs3d_Drawer)& aDrawer,
  50                                            const Standard_Real theval,
  51                                            const TCollection_ExtendedString & aText,
  52                                            const gp_Pnt & aPosition,
  53                                            const gp_Dir & aNormalDir,
  54                                            const gp_Pnt & aBasePnt,
  55                                            const gp_Pnt & aFirstPoint,
  56                                            const gp_Pnt & aSecondPoint,
  57                                            const gp_Pnt & aCenter,
  58                                            const DsgPrs_ArrowSide ArrowPrs,
  59                                            const Standard_Boolean drawRevers,
  60                                                  gp_Pnt & DrawPosition,
  61                                                  gp_Pnt & EndOfArrow,
  62                                                  Handle(Geom_TrimmedCurve)& TrimCurve,
  63                                                  Standard_Boolean & HasCircle )
  64 {
  65   char valcar[80];
  66   sprintf(valcar,"%5.2f",theval);
  67
  68   Standard_Real FirstParCirc, LastParCirc;
  69   Standard_Boolean SpecCase;
  70   gp_Dir DirOfArrow;
  71   gp_Circ FilletCirc;
  72   //  gp_Pnt NewPosition, EndOfArrow;
  73   Handle( Prs3d_DimensionAspect ) LA = aDrawer->DimensionAspect();
  74   Prs3d_Root::CurrentGroup( aPresentation )->SetPrimitivesAspect( LA->LineAspect()->Aspect() );
  75
  76   Standard_Real ArrowLength = LA->ArrowAspect()->Length();
  77   DsgPrs::ComputeFilletRadiusPresentation( ArrowLength,
  78                                            theval,
  79                                            aPosition,
  80                                            aNormalDir,
  81                                            aFirstPoint,
  82                                            aSecondPoint,
  83                                            aCenter,
  84                                            aBasePnt,
  85                                            drawRevers,
  86                                            SpecCase,
  87                                            FilletCirc,
  88                                            FirstParCirc,
  89                                            LastParCirc,
  90                                            EndOfArrow,
  91                                            DirOfArrow,
  92                                            DrawPosition //NewPosition
  93                                            );
  94   // Creating the fillet's arc
  95   if( !SpecCase )
  96   {
  97     const Standard_Real Alpha = Abs(LastParCirc - FirstParCirc);
  98     const Standard_Integer NodeNumber = Max (4 , Standard_Integer (50. * Alpha / M_PI));
  99     const Standard_Real delta = Alpha / ( NodeNumber - 1 );
 100
 101     Handle(Graphic3d_ArrayOfPolylines) aPrims = new Graphic3d_ArrayOfPolylines(NodeNumber);
 102     for (Standard_Integer i = 0 ; i < NodeNumber; i++, FirstParCirc += delta)
 103           aPrims->AddVertex(ElCLib::Value( FirstParCirc, FilletCirc ));
 104     Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
 105
 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   Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2);
 117   aPrims->AddVertex(DrawPosition);
 118   aPrims->AddVertex(EndOfArrow);
 119   Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims);
 120
 121   // Drawing the text
 122   Prs3d_Text::Draw (Prs3d_Root::CurrentGroup (aPresentation), LA->TextAspect(), aText, DrawPosition);
 123
 124   // Add presentation of arrows
 125   DsgPrs::ComputeSymbol( aPresentation, LA, EndOfArrow, EndOfArrow, DirOfArrow, DirOfArrow, ArrowPrs );
 126 }