samples/mfc/standard/01_Geometry/src/ISession2D/ISession_Direction.cpp

   1 // ISession_Direction.cpp: implementation of the ISession_Direction class.
   2 //
   3 //////////////////////////////////////////////////////////////////////
   4
   5 #include "stdafx.h"
   6 #include "..\\GeometryApp.h"
   7 #include "ISession_Direction.h"
   8
   9 #ifdef _DEBUG
  10 #undef THIS_FILE
  11 static char THIS_FILE[]=__FILE__;
  12 #endif
  13
  14 IMPLEMENT_STANDARD_HANDLE(ISession_Direction,AIS_InteractiveObject)
  15 IMPLEMENT_STANDARD_RTTIEXT(ISession_Direction,AIS_InteractiveObject)
  16
  17 #include "Graphic2d_SetOfSegments.hxx"
  18 #include "gp_Vec2d.hxx"
  19 #include "DsgPrs_LengthPresentation.hxx"
  20 #include "Prs3d_ArrowAspect.hxx"
  21
  22 //////////////////////////////////////////////////////////////////////
  23 // Construction/Destruction
  24 //////////////////////////////////////////////////////////////////////
  25
  26 ISession_Direction::ISession_Direction()
  27 {
  28
  29 }
  30
  31 ISession_Direction::ISession_Direction(gp_Pnt& aPnt,gp_Dir&   aDir,Standard_Real aLength,Standard_Real anArrowLength)
  32 :myPnt(aPnt),myDir(aDir),myLength(aLength),myArrowLength(anArrowLength)
  33 {}
  34
  35 ISession_Direction::ISession_Direction(gp_Pnt& aPnt,gp_Vec&   aVec,Standard_Real anArrowLength)
  36 :myPnt(aPnt),myDir(aVec),myArrowLength(anArrowLength)
  37 {
  38   myLength = aVec.Magnitude();
  39 }
  40
  41 ISession_Direction::ISession_Direction(gp_Pnt2d& aPnt2d,
  42                                        gp_Dir2d& aDir2d,
  43                                        Standard_Real aLength)
  44 :myPnt(gp_Pnt(aPnt2d.X(),aPnt2d.Y(),0)),myDir(gp_Dir(aDir2d.X(),aDir2d.Y(),0)),myLength(aLength)
  45 {}
  46
  47 ISession_Direction::ISession_Direction(gp_Pnt2d& aPnt2d,
  48                                        gp_Vec2d&   aVec2d)
  49 :myPnt(gp_Pnt(aPnt2d.X(),aPnt2d.Y(),0)),myDir(gp_Dir(aVec2d.X(),aVec2d.Y(),0))
  50 {
  51   myLength = aVec2d.Magnitude();
  52 }
  53
  54
  55 ISession_Direction::~ISession_Direction()
  56 {
  57
  58 }
  59
  60 void ISession_Direction::Compute(const Handle(PrsMgr_PresentationManager3d)& aPresentationManager,
  61                              const Handle(Prs3d_Presentation)& aPresentation,
  62                              const Standard_Integer aMode)
  63 {
  64     Handle(Prs3d_ArrowAspect) anArrowAspect = myDrawer->ArrowAspect();
  65     anArrowAspect->SetLength(myArrowLength);
  66     myDrawer->SetArrowAspect(anArrowAspect);
  67
  68     gp_Pnt LastPoint = myPnt  ;
  69     LastPoint.Translate (myLength*gp_Vec(myDir))  ;
  70
  71     if (myText.Length() == 0)
  72         DsgPrs_LengthPresentation::Add(aPresentation,myDrawer,myPnt,LastPoint,DsgPrs_AS_LASTAR);
  73     else
  74     {
  75         gp_Pnt OffsetPoint = myPnt;
  76         OffsetPoint.Translate ( (myLength) *gp_Vec(myDir))  ;
  77         DsgPrs_LengthPresentation::Add(aPresentation,myDrawer,myText,myPnt,LastPoint, -myDir, OffsetPoint,  DsgPrs_AS_LASTAR);
  78     }
  79 }
  80
  81
  82 void ISession_Direction::Compute(const Handle(Prs3d_Projector)& aProjector,
  83                              const Handle(Prs3d_Presentation)& aPresentation)
  84  {
  85  }
  86
  87 void ISession_Direction::Compute(const Handle(PrsMgr_PresentationManager2d)& aPresentationManager,
  88                              const Handle(Graphic2d_GraphicObject)& aGrObj,
  89                              const Standard_Integer aMode)
  90 {
  91     Handle(Graphic2d_SetOfSegments) segment;
  92     segment = new Graphic2d_SetOfSegments(aGrObj);
  93
  94     segment->Add(myPnt.X(),
  95                  myPnt.Y(),
  96                  myPnt.X()+myLength*myDir.X(),
  97                  myPnt.Y()+myLength*myDir.Y());
  98
  99     gp_Dir2d aFirstDir = gp_Dir2d(myDir.X(),myDir.Y()).Rotated (200*PI180) ;
 100     segment->Add(myPnt.X()+myLength*myDir.X(),
 101                  myPnt.Y()+myLength*myDir.Y(),
 102                  myPnt.X()+myLength*myDir.X()+ myLength*aFirstDir.X()/5 ,
 103                  myPnt.Y()+myLength*myDir.Y()+ myLength*aFirstDir.Y()/5 );
 104
 105     gp_Dir2d aSecondDir = gp_Dir2d(myDir.X(),myDir.Y()).Rotated (-200*PI180) ;
 106     segment->Add(myPnt.X()+myLength*myDir.X(),
 107                  myPnt.Y()+myLength*myDir.Y(),
 108                  myPnt.X()+myLength*myDir.X()+ myLength*aSecondDir.X()/5 ,
 109                  myPnt.Y()+myLength*myDir.Y()+ myLength*aSecondDir.Y()/5 );
 110
 111 }
 112 void ISession_Direction::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
 113                                       const Standard_Integer aMode)
 114 {
 115 }
 116
 117 void ISession_Direction::SetText(TCollection_ExtendedString & aText)
 118 {
 119     myText = aText;
 120 }