[postgis-tickets] [PostGIS] #3264: Spurious edges in ST_ApproximateMedialAxis
PostGIS
trac at osgeo.org
Tue Aug 25 09:41:56 PDT 2015
#3264: Spurious edges in ST_ApproximateMedialAxis
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Reporter: strk | Owner: strk
Type: defect | Status: new
Priority: medium | Milestone: PostGIS 2.2.0
Component: postgis | Version: trunk
Resolution: | Keywords:
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Comment (by strk):
Here's the WKT of test polygon (reduced):
{{{
POLYGON((1869500 5542134.04114701,1869542.48691877 5542117.03445929,
1869563.45884117 5542096.25547497,1869565.09977432 5542094.62476936,
1869605.02746282 5541987.27322033,1869615.07355377 5541948,
1869583.08175414 5541948,1869578.6141196 5541967.06067625,
1869553.09669917 5542031.99177998,1869527.78084588 5542076.81267058,
1869505.06812083 5542096.72108973,1869500 5542099.06878245,
1869500 5542134.04114701))
}}}
After trying a simplify with a tolerance based on perimeter, which works
very badly for this reduced case, I think I understood what Vincent was
saying and I'm going to try that. Vincent, you meant the difference of the
distance between each of the 2 skeleton edge endpoints and the boundary of
the polygon, right ?
--
Ticket URL: <https://trac.osgeo.org/postgis/ticket/3264#comment:5>
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