+
+//**************************************************************
+TopoDS_Shape XGUI_Selection::findAxisShape(Handle(AIS_InteractiveObject) theIO) const
+{
+ TopoDS_Shape aShape;
+ // Fill by trihedron shapes
+ Handle(AIS_Axis) aAxis = Handle(AIS_Axis)::DownCast(theIO);
+ if (!aAxis.IsNull()) {
+ // an Axis from Trihedron
+ Handle(Geom_Line) aLine = aAxis->Component();
+ Handle(Prs3d_DatumAspect) DA = aAxis->Attributes()->DatumAspect();
+ Handle(Geom_TrimmedCurve) aTLine = new Geom_TrimmedCurve(aLine, 0, DA->FirstAxisLength());
+
+ BRep_Builder aBuilder;
+ TopoDS_Edge aEdge;
+ aBuilder.MakeEdge(aEdge, aTLine, Precision::Confusion());
+ if (!aEdge.IsNull())
+ aShape = aEdge;
+ } else {
+ Handle(AIS_Point) aPoint = Handle(AIS_Point)::DownCast(theIO);
+ if (!aPoint.IsNull()) {
+ // A point from trihedron
+ Handle(Geom_Point) aPnt = aPoint->Component();
+ BRep_Builder aBuilder;
+ TopoDS_Vertex aVertex;
+ aBuilder.MakeVertex(aVertex, aPnt->Pnt(), Precision::Confusion());
+ if (!aVertex.IsNull())
+ aShape = aVertex;
+ }
+ }
+ return aShape;
+}