This operation detects and highlights the free boundaries of the selected object.
Free boundaries are wires and edges that are not shared between two faces.
The information about the number of closed and open free boundaries is also provided.
Press Apply or Apply and Close button to publish the corresponding wires or edges in the study.
TUI Command: (NoError, ClosedWires, OpenWires) = geompy.GetFreeBoundary(Shape), where Shape is a shape to be checked, NoError is false if an error occurred while checking free boundaries, ClosedWires is a list of closed free boundary wires, OpenWires is a list of open free boundary wires.
See also a TUI example.