-
-#ifdef CLASS2D
- TopoDS_Wire aWire; int nb(0);
- TopoDS_Iterator it(theFace);
- for(;it.More();it.Next()) {
- aWire = TopoDS::Wire(it.Value());
- nb++;
- }
- if(nb > 1 || aWire.IsNull()) return aState;
- gp_Pln aPlane;
- gp_Vec aNormal;
- BRepBuilderAPI_FindPlane fndPlane (theFace, Precision::Confusion());
- if(fndPlane.Found())
- aPlane = fndPlane.Plane()->Pln();
- else
- return aState;
- aNormal = gp_Vec(aPlane.Axis().Direction());
- if(theFace.Orientation() == TopAbs_REVERSED)
- aNormal.Reverse();
- gp_Pnt aPoint = gp_Pnt (thePnt2d.X(), thePnt2d.Y(), 0);
- TColgp_SequenceOfVec aSeq;
- TopTools_MapOfShape aMap;
- it.Initialize(aWire);
- for (;it.More(); it.Next()) {
- const TopoDS_Vertex& aVx = TopExp::FirstVertex(TopoDS::Edge(it.Value()), Standard_True);
- if(!aMap.Add(aVx))
- continue;
- const gp_Pnt& aCurPnt = BRep_Tool::Pnt(TopoDS::Vertex(aVx));
- if(aPoint.IsEqual(aCurPnt,Precision::Confusion())) {
- aState = TopAbs_ON;
- return aState;
- }
- gp_Vec aVec (aPoint, aCurPnt);
- aSeq.Append(aVec);
- }
- Standard_Real anAng(0.0);
- for(int i = 1;i < aSeq.Length();i++) {
- const gp_Vec& aV1 = aSeq.Value(i);
- const gp_Vec& aV2 = aSeq.Value(i+1);
- anAng += aV1.AngleWithRef(aV2, aNormal);
- }
- anAng += aSeq.Value(aSeq.Length()).AngleWithRef(aSeq.Value(1), aNormal);
- if(abs(anAng) > Precision::Angular())
- aState = TopAbs_IN;
- else
- aState = TopAbs_OUT;
-
-#else
- BRepTopAdaptor_FClass2d aClassifier( theFace, Precision::Confusion() );
- aState = aClassifier.Perform( gp_Pnt2d( thePoint ), Standard_False );
-#endif
+ Standard_Real aTol = BRep_Tool::Tolerance(theFace);
+ BRepAdaptor_Surface Ads ( theFace, Standard_False );
+ Standard_Real toluv = Min ( Ads.UResolution(aTol), Ads.VResolution(aTol) );
+ const gp_Pln& aPlane = Ads.Surface().Plane();
+ gp_Pnt aPnt(theXY.X(), theXY.Y(), 0.);
+ Standard_Real aU1, aV1;
+ ElSLib::Parameters(aPlane,aPnt, aU1, aV1);
+ BRepTopAdaptor_FClass2d aClassifier( theFace, toluv );
+ aState = aClassifier.Perform( gp_Pnt2d(aU1, aV1), Standard_False );