export - How to identify feature vertices that are part of a donut hole in ArcGIS 10?

I´m exporting the coordinates of polygon vertices to a CSV-File using the "Feature Vertices to Points" and then the "Export feature attributes to ASCII" tools.

Some of these polygons have holes (donuts). Can I do the analysis in a way, that in the resulting CSV-File it´s possible to identify if a point has been part of the outer border or the inner border (donut) of the polygon?

Answer

Here is another option:

1. Run Feature Vertices to Points tool on polygon layer.


2. Run Feature Class to Coverage tool on polygon layer.


3. Run Dissolve tool on the result of step 2


4. Run Feature Vertices to Points tool on the result of step 3 (gives only outer vertices).


5. Perform either a Select By Location or Feature Compare tool between step 1 and step 4 point layer to distinguish between inner and outer vertices.