projects / occt.git / blame
| Commit | Line | Data |
|---|---|---|
| 7fd59977 | 1 | // File: BRepExtrema_ExtFF.cxx |
| 2 | // Created: Wed Dec 15 16:48:53 1993 | |
| 3 | // Author: Christophe MARION | |
| 7fd59977 | 4 | // modified by mps (juillet 96 ): on utilise BRepAdaptor a la place de |
| 5 | // GeomAdaptor dans Initialize et Perform. | |
| 92d1589b A |
6 | |
| 7 | #include <BRepExtrema_ExtFF.hxx> | |
| 8 | ||
| 7fd59977 | 9 | #include <BRepExtrema_ExtCF.hxx> |
| 10 | #include <BRep_Tool.hxx> | |
| 11 | #include <BRepTools.hxx> | |
| 7fd59977 | 12 | #include <BRepClass_FaceClassifier.hxx> |
| 7fd59977 | 13 | #include <gp_Pnt2d.hxx> |
| 14 | #include <Precision.hxx> | |
| 15 | #include <BRepAdaptor_HSurface.hxx> | |
| 16 | ||
| 17 | //======================================================================= | |
| 18 | //function : BRepExtrema_ExtFF | |
| 19 | //purpose : | |
| 20 | //======================================================================= | |
| 21 | ||
| 92d1589b | 22 | BRepExtrema_ExtFF::BRepExtrema_ExtFF(const TopoDS_Face& F1, const TopoDS_Face& F2) |
| 7fd59977 | 23 | { |
| 24 | Initialize(F2); | |
| 25 | Perform(F1,F2); | |
| 26 | } | |
| 92d1589b | 27 | |
| 7fd59977 | 28 | //======================================================================= |
| 29 | //function : Initialize | |
| 30 | //purpose : | |
| 31 | //======================================================================= | |
| 32 | ||
| 33 | void BRepExtrema_ExtFF::Initialize(const TopoDS_Face& F2) | |
| 34 | { | |
| 35 | BRepAdaptor_Surface Surf(F2); | |
| 36 | myHS = new BRepAdaptor_HSurface(Surf); | |
| 92d1589b | 37 | const Standard_Real Tol = BRep_Tool::Tolerance(F2); |
| 7fd59977 | 38 | Standard_Real U1, U2, V1, V2; |
| 39 | BRepTools::UVBounds(F2, U1, U2, V1, V2); | |
| 92d1589b | 40 | myExtSS.Initialize(myHS->Surface(), U1, U2, V1, V2, Tol); |
| 7fd59977 | 41 | } |
| 42 | ||
| 43 | //======================================================================= | |
| 44 | //function : Perform | |
| 45 | //purpose : | |
| 46 | //======================================================================= | |
| 47 | ||
| 92d1589b | 48 | void BRepExtrema_ExtFF::Perform(const TopoDS_Face& F1, const TopoDS_Face& F2) |
| 7fd59977 | 49 | { |
| 7fd59977 | 50 | mySqDist.Clear(); |
| 51 | myPointsOnS1.Clear(); | |
| 52 | myPointsOnS2.Clear(); | |
| 92d1589b | 53 | |
| 7fd59977 | 54 | BRepAdaptor_Surface Surf1(F1); |
| 55 | Handle(BRepAdaptor_HSurface) HS1 = new BRepAdaptor_HSurface(Surf1); | |
| 92d1589b A |
56 | const Standard_Real Tol1 = BRep_Tool::Tolerance(F1); |
| 57 | Standard_Real U1, U2, V1, V2; | |
| 7fd59977 | 58 | BRepTools::UVBounds(F1, U1, U2, V1, V2); |
| 92d1589b A |
59 | myExtSS.Perform(HS1->Surface(), U1, U2, V1, V2, Tol1); |
| 60 | ||
| 61 | if (!myExtSS.IsDone()) | |
| 62 | return; | |
| 63 | ||
| 64 | if (myExtSS.IsParallel()) | |
| 65 | mySqDist.Append(myExtSS.SquareDistance(1)); | |
| 66 | else | |
| 67 | { | |
| 68 | // Exploration of points and classification | |
| 69 | BRepClass_FaceClassifier classifier; | |
| 70 | const Standard_Real Tol2 = BRep_Tool::Tolerance(F2); | |
| 71 | Extrema_POnSurf P1, P2; | |
| 72 | ||
| 73 | Standard_Integer i; | |
| 74 | for (i = 1; i <= myExtSS.NbExt(); i++) | |
| 75 | { | |
| 76 | myExtSS.Points(i, P1, P2); | |
| 7fd59977 | 77 | P1.Parameter(U1, U2); |
| 92d1589b A |
78 | const gp_Pnt2d Puv1(U1, U2); |
| 79 | classifier.Perform(F1, Puv1, Tol1); | |
| 80 | const TopAbs_State state1 = classifier.State(); | |
| 81 | if (state1 == TopAbs_ON || state1 == TopAbs_IN) | |
| 82 | { | |
| 83 | P2.Parameter(U1, U2); | |
| 84 | const gp_Pnt2d Puv2(U1, U2); | |
| 85 | classifier.Perform(F2, Puv2, Tol2); | |
| 86 | const TopAbs_State state2 = classifier.State(); | |
| 87 | if (state2 == TopAbs_ON || state2 == TopAbs_IN) | |
| 88 | { | |
| 89 | mySqDist.Append(myExtSS.SquareDistance(i)); | |
| 90 | myPointsOnS1.Append(P1); | |
| 91 | myPointsOnS2.Append(P2); | |
| 92 | } | |
| 7fd59977 | 93 | } |
| 94 | } | |
| 95 | } | |
| 96 | } |