[geos-devel] MakeValid and empty collection component

[Even Rouault]

Sandro,

> I found out that GEOSMakeValid will remove EMPTY components from
> collections. The PostGIS implementation of it does not do this.
> 
> The rationale was that a collection with EMPTY component is NOT
> invalid as per OGC specification, so why removing them ? Isn't
> that a job for CollectionHomogenize or similar ?

I don't remember having done anything particular regarding treatment of EMPTY 
components. Might be an accident during the porting or the PostGIS 
implementation has changed in between.

Even


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