The Boundaries operator in the Transform toolbar for drawings will add line objects that exactly coincide with the periphery of every area object in the target set.
In the illustration above, boundary lines have been created for the four Western US states areas. The boundary lines have been selected and moved slightly in the illustration at right to show clearly the addition of lines.
Note that creating a boundary line around each area will create coincident lines along places where the periphery of one area coincides with the periphery of an adjacent area. This may be seen in the above example by dragging apart each of the boundary line objects.
Tech Tip
Many transforms automatically run a Normalize Topology transform before running to eliminate common errors that may affect correct operation. The Boundaries, Points and Node Points transform operators do not normalize target objects before running. This makes it possible, for example, to segmentize lines with a length threshold of 10 meters, and then use the Points transform to place point objects at the locations of resulting inflection points.
The Boundaries operator will not split resulting objects if the Split branches objects after transforms option is turned off in the Tools - Options dialog.
See Also
Transform - Bounded Areas to create area objects from boundary lines.