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1 | // File: DsgPrs_TangentPresentation.cxx |
| 2 | // Created: Tue Jan 16 14:29:33 1996 |
| 3 | // Author: Jean-Pierre COMBE |
| 4 | // <jpi> |
| 5 | |
| 6 | |
| 7 | #include <DsgPrs_TangentPresentation.ixx> |
| 8 | |
| 9 | #include <Graphic3d_Group.hxx> |
| 10 | #include <Graphic3d_Array1OfVertex.hxx> |
| 11 | #include <Prs3d_Arrow.hxx> |
| 12 | #include <Prs3d_ArrowAspect.hxx> |
| 13 | #include <Prs3d_LineAspect.hxx> |
| 14 | #include <Prs3d_LengthAspect.hxx> |
| 15 | #include <Graphic3d_AspectLine3d.hxx> |
| 16 | #include <Prs3d_PointAspect.hxx> |
| 17 | #include <Geom_CartesianPoint.hxx> |
| 18 | #include <StdPrs_Point.hxx> |
| 19 | #include <gp_Vec.hxx> |
| 20 | #include <Prs3d_Arrow.hxx> |
| 21 | |
| 22 | void DsgPrs_TangentPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation, |
| 23 | const Handle(Prs3d_Drawer)& aDrawer, |
| 24 | const gp_Pnt& OffsetPoint, |
| 25 | const gp_Dir& aDirection, |
| 26 | const Standard_Real length) |
| 27 | { |
| 28 | gp_Vec vec(aDirection); |
| 29 | gp_Vec vec1 = vec.Multiplied(length); |
| 30 | gp_Vec vec2 = vec.Multiplied(-length); |
| 31 | gp_Pnt p1 = OffsetPoint.Translated(vec1); |
| 32 | gp_Pnt p2 = OffsetPoint.Translated(vec2); |
| 33 | |
| 34 | // Aspect |
| 35 | Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect(); |
| 36 | LA->LineAspect()->SetTypeOfLine(Aspect_TOL_SOLID); |
| 37 | Handle(Prs3d_ArrowAspect) ARR1 = LA->Arrow1Aspect(); |
| 38 | Handle(Prs3d_ArrowAspect) ARR2 = LA->Arrow2Aspect(); |
| 39 | ARR1->SetLength(length/5); |
| 40 | ARR2->SetLength(length/5); |
| 41 | |
| 42 | // Array1OfVertex |
| 43 | Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect()); |
| 44 | Graphic3d_Array1OfVertex V(1,2); |
| 45 | Quantity_Length X,Y,Z; |
| 46 | p1.Coord(X,Y,Z); |
| 47 | V(1).SetCoord(X,Y,Z); |
| 48 | p2.Coord(X,Y,Z); |
| 49 | V(2).SetCoord(X,Y,Z); |
| 50 | Prs3d_Root::CurrentGroup(aPresentation)->Polyline(V); |
| 51 | |
| 52 | // fleche 1 : |
| 53 | Prs3d_Root::NewGroup(aPresentation); |
| 54 | Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect()); |
| 55 | Prs3d_Arrow::Draw(aPresentation,p1,aDirection, |
| 56 | LA->Arrow1Aspect()->Angle(), |
| 57 | LA->Arrow1Aspect()->Length()); |
| 58 | |
| 59 | // fleche 2 |
| 60 | Prs3d_Root::NewGroup(aPresentation); |
| 61 | Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect()); |
| 62 | Prs3d_Arrow::Draw(aPresentation,p2,aDirection.Reversed(), |
| 63 | LA->Arrow2Aspect()->Angle(), |
| 64 | LA->Arrow2Aspect()->Length()); |
| 65 | } |
| 66 | |
| 67 | |
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