Creating doughnut polygon

I am trying to symbolize a building that has a doughnut shape and
enough point entities lie within in . A polygon would certainly not
leave gap inside it . What could be the workaround ?
I think spatial intersection would do it . How can I do in in
ArcMap ?

Geobird wrote:

There are more than one sort of polygon topology... in one of them
polygons are simple (i.e. without "holes" or "islands") in others they
are more complex: it depends on the system you're using.

For a somewhat better description of the issue:
http://snipurl.com/dga9o

Regards,

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Luca Morandini
www.lucamorandini.it
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