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1 | // File: DsgPrs_ConcentricPresentation.cxx |
| 2 | // Created: Mon Mar 18 16:40:07 1996 |
| 3 | // Author: Flore Lantheaume |
| 4 | // <fla@filax> |
| 5 | |
| 6 | |
| 7 | #include <DsgPrs_ConcentricPresentation.ixx> |
| 8 | |
| 9 | #include <Graphic3d_Group.hxx> |
| 10 | #include <Graphic3d_Array1OfVertex.hxx> |
| 11 | #include <Prs3d_LengthAspect.hxx> |
| 12 | #include <Prs3d_Root.hxx> |
| 13 | #include <Prs3d_LineAspect.hxx> |
| 14 | |
| 15 | #include <gp_Circ.hxx> |
| 16 | #include <gp_Pnt.hxx> |
| 17 | #include <gp_Dir.hxx> |
| 18 | #include <gp_Vec.hxx> |
| 19 | |
| 20 | #include <ElCLib.hxx> |
| 21 | |
| 22 | void DsgPrs_ConcentricPresentation::Add( |
| 23 | const Handle(Prs3d_Presentation)& aPresentation, |
| 24 | const Handle(Prs3d_Drawer)& aDrawer, |
| 25 | const gp_Pnt& aCenter, |
| 26 | const Standard_Real aRadius, |
| 27 | const gp_Dir& aNorm, |
| 28 | const gp_Pnt& aPoint) |
| 29 | { |
| 30 | Handle(Prs3d_LengthAspect) LA = aDrawer->LengthAspect(); |
| 31 | |
| 32 | //Creation et discretisation du plus gros cercle |
| 33 | gp_Circ Circ(gp_Ax2(aCenter,aNorm), aRadius); |
| 34 | Standard_Integer nbp = 50; |
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35 | Standard_Real dteta = (2 * M_PI)/nbp; |
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36 | Graphic3d_Array1OfVertex V(1,nbp+1); |
| 37 | gp_Pnt ptcur; |
| 38 | Standard_Real ucur = 0; |
| 39 | Standard_Integer i ; |
| 40 | for ( i = 1; i<=nbp; i++) { |
| 41 | ptcur = ElCLib::Value(ucur, Circ); |
| 42 | V(i).SetCoord(ptcur.X(), ptcur.Y(),ptcur.Z()); |
| 43 | ucur = ucur + dteta; |
| 44 | } |
| 45 | V(nbp+1).SetCoord( V(1).X(), V(1).Y(), V(1).Z()); |
| 46 | Prs3d_Root::CurrentGroup(aPresentation) |
| 47 | ->SetPrimitivesAspect(LA->LineAspect()->Aspect()); |
| 48 | Prs3d_Root::CurrentGroup(aPresentation)->Polyline(V); |
| 49 | |
| 50 | //Creation et discretisation du plus petit cercle |
| 51 | Circ.SetRadius(aRadius/2); |
| 52 | ucur = 0; |
| 53 | for ( i = 1; i<=nbp; i++) { |
| 54 | ptcur = ElCLib::Value(ucur, Circ); |
| 55 | V(i).SetCoord(ptcur.X(), ptcur.Y(),ptcur.Z()); |
| 56 | ucur = ucur + dteta; |
| 57 | } |
| 58 | V(nbp+1).SetCoord( V(1).X(), V(1).Y(), V(1).Z()); |
| 59 | Prs3d_Root::NewGroup(aPresentation); |
| 60 | Prs3d_Root::CurrentGroup(aPresentation) |
| 61 | ->SetPrimitivesAspect(LA->LineAspect()->Aspect()); |
| 62 | Prs3d_Root::CurrentGroup(aPresentation)->Polyline(V); |
| 63 | |
| 64 | //Creation de la croix |
| 65 | //1er segment |
| 66 | gp_Dir vecnorm(aPoint.XYZ() - aCenter.XYZ() ); |
| 67 | gp_Vec vec(vecnorm); |
| 68 | vec.Multiply(aRadius); |
| 69 | gp_Pnt p1 = aCenter.Translated(vec); |
| 70 | gp_Pnt p2 = aCenter.Translated(-vec); |
| 71 | |
| 72 | Prs3d_Root::NewGroup(aPresentation); |
| 73 | Prs3d_Root::CurrentGroup(aPresentation)-> |
| 74 | SetPrimitivesAspect(LA->LineAspect()->Aspect()); |
| 75 | Graphic3d_Array1OfVertex VExt(1,2); |
| 76 | VExt(1).SetCoord(p1.X(), p1.Y(), p1.Z()); |
| 77 | VExt(2).SetCoord(p2.X(), p2.Y(), p2.Z()); |
| 78 | Prs3d_Root::CurrentGroup(aPresentation)->Polyline(VExt); |
| 79 | |
| 80 | //2ieme segment |
| 81 | vec.Cross(aNorm); |
| 82 | vecnorm.SetCoord(vec.X(), vec.Y(), vec.Z() ); |
| 83 | vec.SetXYZ(vecnorm.XYZ()); |
| 84 | vec.Multiply(aRadius); |
| 85 | p1 = aCenter.Translated(vec); |
| 86 | p2 = aCenter.Translated(-vec); |
| 87 | VExt(1).SetCoord(p1.X(), p1.Y(), p1.Z()); |
| 88 | VExt(2).SetCoord(p2.X(), p2.Y(), p2.Z()); |
| 89 | |
| 90 | Prs3d_Root::NewGroup(aPresentation); |
| 91 | Prs3d_Root::CurrentGroup(aPresentation)-> |
| 92 | SetPrimitivesAspect(LA->LineAspect()->Aspect()); |
| 93 | Prs3d_Root::CurrentGroup(aPresentation)->Polyline(VExt); |
| 94 | |
| 95 | } |
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