[postgis-users] Negative buffer chokes on Alaska
seanasy at gmail.com
Sun Jun 22 19:47:20 PDT 2008
I have Census congressional district data loaded in a Postgis db. I
want to do a negative buffer on all of the districts. The data is in US
National Atlas (EPSG:2163).
Whenever I try to do a large (~10,000 m) buffer postgresql crashes. I
eventually figured out that Alaska was causing the problem. Reducing
the buffer gives unusual results for Alaska. A -500m buffer produces
the image attached (blue = buffer result, green = original data).
Postgis: POSTGIS="1.3.3" GEOS="3.0.0-CAPI-1.4.1" PROJ="Rel. 4.6.0, 21
Dec 2007" USE_STATS
Original data: http://dpaste.com/58232/plain/
Is it a problem with the data? With Postgis?
Thanks in advance,
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