On 5/22/2014 12:28 PM, Richard Greenwood wrote:
I have a polygon table that I want to convert to linestrings without
any duplicated (overlapping) linestrings. I'm doing this simply to
improve cartography so I'm looking for a quick and dirty approach,
avoiding topology if possible.
I'm not sure I understand what it is you are attempting to do from this
description. I would expect lines going in two directions from each
polygon and I just don't know how you would use that to help with
"improve cartography".
The closest I've gotten so far is to break the polygons boundaries
into simple (two vertex) lines and delete all the duplicate lines. Now
I'm stuck getting the simple lines back into polylines. Just doing a
union of the whole mess isn't getting me individual linestrings.
So, crazy "out of the blue" question.. have you considered creating a
line (or lines) from the centroids?
All this is turning into more steps that I anticipated and I wonder if
I'm missing simpler approach?
Or maybe describe what your target is? There are a lot of people a lot
more knowledgeable than I on this list, and if they haven't answered,
perhaps you haven't presented your challenge in a manner that they can
address.
Roxanne
Thanks,
Rich
--
Richard W. Greenwood, PLS
www.greenwoodmap.com <http://www.greenwoodmap.com>
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