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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | GISList: Transfer of elevation attributes to sub-basins |
| Date: |
03/26/2003 09:40:00 AM |
| From: |
David Crosby |
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List,
I have two layers - elevation contours (actually elevation 'bands') and contiguous drainage
sub-basins, both polygon coverages. I also have a TIN and a DEM of the study area. I would like to
determine the highest elevation that occurs on the boundary of each sub-basin.
My idea to do this would be something like to convert both coverages to lines, and transfer the
polygon attributes to the lines. Then intersect the two coverages together, and take the resulting
node with the highest elevation from each unique sub-basin to determine the elevation. One problem
I see with this though is that since the basins are contiguous and share boundaries, the sub-basin
lines will not have a unique sub-basin ID to work with.
Question is, does anyone have any suggestions on how to handle this problem, a good methodology for
doing it, or any code to share that could get me started? I have the ESRI suite of products
available to work with.
Best, and will sum.
David
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