[postgis-devel] Testing ST_LineMerge issue
mark.cave-ayland at siriusit.co.uk
Fri Dec 19 03:23:55 PST 2008
Obe, Regina wrote:
> Now there are 2 issues here.
> 1) GEOS ST_LineMerge is obviously not smart enough to realize that
> linemerging something like that is silly.
> 2) ST_MakeLine lets you get away with creating this monstrosity. Which
> hmm I suppose there are reasons why someone may want to, but perhaps we
> shouldn't go there.
This reminds me actually, what is the OGC-SFS take on repeated points? I
don't remember seeing any mention of this in any of the
parser/unparser work I did earlier, although it seems to be required for
a geometry to be valid. So is it also required for a geometry to be simple?
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