Hi all
I have a simple LINEARRING which I would like to use for processing:
LINEARRING (592457.52 6227645.26,592454.37 6227645.98,592448.43
6227647.35,592454.15 6227672.3,592428.66 6227678.14,592422.51
6227651.33,592412.78 6227653.56,592419.05 6227680.86,592424.64
6227691.08,592465.86 6227681.63,592457.52 6227645.26)
When I insert it into QGIS 2.18.2 using the QuickWKT plugin and afterwards run
the "Vector\Geometry Tools\Check validity" (method: QGIS, GEOS reports it as
valid) on the resulting layer, I get an error saying:
segments 0 and 9 of line 0 intersect at 592457.52, 6227645.26
The LINEARRING comes from a valid polygon and I would expect the LINEARRING to
require some form of intersection at that point, since it's the start and end
point of the ring.
I have tried doing a "Vector\Geoprocessing tools\Fixed distance buffer" with
zero distance on the layer, but it returns a "None" geometry.
Why is this ring invalid? Is this due to numeric precision and what can I do to
circumvent it?
Regards, Casper
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