+ return std::shared_ptr<GeomAPI_Edge>();
+ BRepBuilderAPI_MakeEdge anEdgeBuilder(aStart, anEnd);
+ std::shared_ptr<GeomAPI_Edge> aRes(new GeomAPI_Edge);
+ TopoDS_Edge anEdge = anEdgeBuilder.Edge();
+ aRes->setImpl(new TopoDS_Shape(anEdge));
+ return aRes;
+}
+
+std::shared_ptr<GeomAPI_Edge> GeomAlgoAPI_EdgeBuilder::cylinderAxis(
+ std::shared_ptr<GeomAPI_Shape> theCylindricalFace)
+{
+ std::shared_ptr<GeomAPI_Edge> aResult;
+ const TopoDS_Shape& aShape = theCylindricalFace->impl<TopoDS_Shape>();
+ if (aShape.IsNull())
+ return aResult;
+ TopoDS_Face aFace = TopoDS::Face(aShape);
+ if (aFace.IsNull())
+ return aResult;
+ TopLoc_Location aLoc;
+ Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace, aLoc);
+ if (aSurf.IsNull())
+ return aResult;
+ Handle(Geom_CylindricalSurface) aCyl = Handle(Geom_CylindricalSurface)::DownCast(aSurf);
+ if (aCyl.IsNull())
+ return aResult;
+ gp_Ax1 anAxis = aCyl->Axis();
+ gp_Pnt aStart(anAxis.Location().Transformed(aLoc.Transformation()));
+ // edge length is 100, "-" because cylinder of extrusion has negative direction with the cylinder
+ gp_Pnt anEnd(anAxis.Location().XYZ() - anAxis.Direction().XYZ() * 100.);
+ anEnd.Transform(aLoc.Transformation());
+