1 // File: DrawDim_PlanarDiameter.cxx
2 // Created: Wed Nov 25 11:37:21 1998
3 // Author: Denis PASCAL
4 // <dp@dingox.paris1.matra-dtv.fr>
7 #include <DrawDim_PlanarDiameter.ixx>
9 #include <Geom_Curve.hxx>
10 #include <Geom_Circle.hxx>
12 #include <gp_Circ.hxx>
13 #include <BRep_Tool.hxx>
14 #include <TCollection_AsciiString.hxx>
15 #include <Draw_Color.hxx>
19 #include <TopoDS_Vertex.hxx>
21 //=======================================================================
22 //function : DrawDim_PlanarDiameter
24 //=======================================================================
26 DrawDim_PlanarDiameter::DrawDim_PlanarDiameter(const TopoDS_Face& face, const TopoDS_Shape& c)
33 //=======================================================================
34 //function : DrawDim_PlanarDiameter
36 //=======================================================================
38 DrawDim_PlanarDiameter::DrawDim_PlanarDiameter(const TopoDS_Shape& c)
44 //=======================================================================
47 //=======================================================================
49 void DrawDim_PlanarDiameter::DrawOn(Draw_Display& dis) const
51 if (myCircle.ShapeType() == TopAbs_EDGE) {
53 Handle(Geom_Curve) curve = BRep_Tool::Curve (TopoDS::Edge(myCircle),f,l);
54 if (curve->IsKind(STANDARD_TYPE(Geom_Circle))) {
55 gp_Circ circle = Handle(Geom_Circle)::DownCast(curve)->Circ();
57 TopExp::Vertices(TopoDS::Edge(myCircle),vf,vl);
58 const gp_Pnt first = BRep_Tool::Pnt(vf);
59 Standard_Real parfirst = ElCLib::Parameter(circle,first);
60 Standard_Real parlast = (parfirst + M_PI);
61 gp_Pnt last = ElCLib::Value(parlast,circle);
63 dis.Draw (first,last);
64 gp_Pnt p ((first.X()+ last.X())/2,(first.Y()+ last.Y())/2,(first.Z()+ last.Z())/2);
69 cout << " DrawDim_PlanarDiameter::DrawOn : dimension error" << endl;