Hi, I was trying to play with polygons on PostGIS and I found this one to be quite troublesome:
POLYGON((9.50351715087891 47.3943328857422,9.50386047363281 47.3943328857422,9.50351715087891 47.3943328857422,9.50248718261719 47.3943328857422,9.50214385986328 47.3939895629883,9.50180053710938 47.3943328857422,9.50145721435547 47.3939895629883,9.50111389160156 47.3936462402344,9.50145721435547 47.3936462402344,9.50145721435547 47.3939895629883,9.50214385986328 47.3939895629883,9.50248718261719 47.3939895629883,9.50386047363281 47.3943328857422,9.50351715087891 47.3943328857422)) When given to st_buffer(), it will throw this error: NOTICE: AssertionFailedException: unable to assign hole to a shell ERROR: GEOS buffer() threw an error! I don't understand... if you look at it, it looks like an armless polygon. More details (picture) can be found here: http://patrick.blog.thus.ch/?p=8 I'am using PostgresQL 8.2.4 on a Debian install with: POSTGIS="1.3.1" GEOS="2.2.3-CAPI-1.1.1" PROJ="Rel. 4.5.0, 22 Oct 2006" USE_STATS Does anybody have an idea on what my problem is? Thanks _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
