Command: remove
Description:
Removes selected components from the database. If control points are
selected then the control points are removed and the component remains in
the database.
The behaviour of a control point removal depends on its type: A removed
vertex leads to the unification of the adjoining segments, a removed segment
breaks the path. It should be noted that the removal of control points is an
optional operation. The line component for instance does not support the
removal of its start or end point.