| 1 | // File: BRepClass_Intersector3d.cdl |
| 2 | // Created: Fri Apr 1 09:14:28 1994 |
| 3 | // Author: Laurent BUCHARD |
| 4 | // <lbr@fuegox> |
| 5 | //-Copyright: Matra Datavision 1994 |
| 6 | |
| 7 | |
| 8 | // Modified by skv - Fri Mar 4 12:07:34 2005 OCC7966 |
| 9 | |
| 10 | #include <BRepClass3d_Intersector3d.ixx> |
| 11 | |
| 12 | #include <IntCurveSurface_IntersectionPoint.hxx> |
| 13 | #include <gp_Lin.hxx> |
| 14 | #include <TopoDS_Face.hxx> |
| 15 | #include <TopAbs.hxx> |
| 16 | |
| 17 | |
| 18 | #include <IntCurveSurface_HInter.hxx> |
| 19 | #include <BRepAdaptor_HSurface.hxx> |
| 20 | #include <Geom_Line.hxx> |
| 21 | #include <gp_Pnt2d.hxx> |
| 22 | #include <BRepClass_FaceClassifier.hxx> |
| 23 | |
| 24 | #include <GeomAdaptor_Curve.hxx> |
| 25 | |
| 26 | #include <GeomAdaptor_HCurve.hxx> |
| 27 | #include <BRepAdaptor_HSurface.hxx> |
| 28 | |
| 29 | //============================================================================ |
| 30 | BRepClass3d_Intersector3d::BRepClass3d_Intersector3d() |
| 31 | : done(Standard_False),hasapoint(Standard_False) |
| 32 | { |
| 33 | } |
| 34 | //============================================================================ |
| 35 | void BRepClass3d_Intersector3d::Perform(const gp_Lin& L, |
| 36 | const Standard_Real /*Prm*/, |
| 37 | const Standard_Real Tol, |
| 38 | const TopoDS_Face& Face) { |
| 39 | |
| 40 | static IntCurveSurface_HInter HICS; |
| 41 | static BRepAdaptor_Surface surface; |
| 42 | static BRepClass_FaceClassifier classifier2d; |
| 43 | |
| 44 | Handle(Geom_Line) geomline = new Geom_Line(L); |
| 45 | GeomAdaptor_Curve LL(geomline); |
| 46 | |
| 47 | surface.Initialize(Face,Standard_True); |
| 48 | |
| 49 | Standard_Boolean IsUPer, IsVPer; |
| 50 | Standard_Real uperiod=0, vperiod=0; |
| 51 | if ((IsUPer = surface.IsUPeriodic())) |
| 52 | uperiod = surface.UPeriod(); |
| 53 | if ((IsVPer = surface.IsVPeriodic())) |
| 54 | vperiod = surface.VPeriod(); |
| 55 | |
| 56 | Standard_Real U1, U2, V1, V2; |
| 57 | U1 = surface.FirstUParameter(); |
| 58 | U2 = surface.LastUParameter(); |
| 59 | V1 = surface.FirstVParameter(); |
| 60 | V2 = surface.LastVParameter(); |
| 61 | |
| 62 | //-- |
| 63 | Handle(GeomAdaptor_HCurve) HLL = new GeomAdaptor_HCurve(LL); |
| 64 | Handle(BRepAdaptor_HSurface) Hsurface = new BRepAdaptor_HSurface(surface); |
| 65 | //-- |
| 66 | HICS.Perform(HLL,Hsurface); |
| 67 | |
| 68 | W=RealLast(); |
| 69 | if(HICS.IsDone()) { |
| 70 | for(Standard_Integer index=HICS.NbPoints(); index>=1; index--) { |
| 71 | gp_Pnt2d Puv(HICS.Point(index).U(),HICS.Point(index).V()); |
| 72 | |
| 73 | Standard_Integer N1 = 0; |
| 74 | Standard_Integer N2 = 0; |
| 75 | |
| 76 | Standard_Real X = Puv.X(); |
| 77 | Standard_Real Y = Puv.Y(); |
| 78 | |
| 79 | if(IsUPer) { |
| 80 | if(X > U2) { |
| 81 | N1 = RealToInt( (X - U1) / uperiod ); |
| 82 | } |
| 83 | if(X < U1) { |
| 84 | N1 = RealToInt( (X - U2) / uperiod ); |
| 85 | } |
| 86 | Puv.SetX(X - uperiod * N1); |
| 87 | } |
| 88 | |
| 89 | if(IsVPer) { |
| 90 | if(Y > V2) { |
| 91 | N2 = RealToInt ( (Y - V1) / vperiod ); |
| 92 | } |
| 93 | if(Y < V1) { |
| 94 | N2 = RealToInt ( (Y - V2) / vperiod ); |
| 95 | } |
| 96 | Puv.SetY(Y - vperiod * N2); |
| 97 | } |
| 98 | |
| 99 | classifier2d.Perform(Face,Puv,Tol); |
| 100 | TopAbs_State currentstate = classifier2d.State(); |
| 101 | if(currentstate==TopAbs_IN || currentstate==TopAbs_ON) { |
| 102 | const IntCurveSurface_IntersectionPoint& HICSPoint = HICS.Point(index); |
| 103 | Standard_Real HICSW = HICSPoint.W(); |
| 104 | // Modified by skv - Fri Mar 4 12:07:34 2005 OCC7966 Begin |
| 105 | if((W > HICSW) && (HICSW>-Tol)) { |
| 106 | // if(W > HICSW) { |
| 107 | // Modified by skv - Fri Mar 4 12:07:34 2005 OCC7966 End |
| 108 | hasapoint = Standard_True; |
| 109 | U = HICSPoint.U(); |
| 110 | V = HICSPoint.V(); |
| 111 | W = HICSW; |
| 112 | transition = HICSPoint.Transition(); |
| 113 | pnt = HICSPoint.Pnt(); |
| 114 | state = currentstate; |
| 115 | face = Face; |
| 116 | if(Face.Orientation()==TopAbs_REVERSED) { |
| 117 | if(transition == IntCurveSurface_In) |
| 118 | transition = IntCurveSurface_Out; |
| 119 | else |
| 120 | transition = IntCurveSurface_In; |
| 121 | } |
| 122 | } |
| 123 | } //-- classifier state is IN or ON |
| 124 | done = Standard_True; |
| 125 | } //-- Loop on Intersection points. |
| 126 | } //-- HICS.IsDone() |
| 127 | } |
| 128 | |
| 129 | |
| 130 | |