[gdal-dev] Simple features/sql-mm and bezier/elliptical curves

[Paul Ramsey]

This would be something we could put our (PostGIS) OSGeo budget to, perhaps, in lieu of any other activities going on this year. 

P

> On Oct 12, 2021, at 3:00 AM, Darafei Komяpa Praliaskouski <me at komzpa.net> wrote:
> 
> Hello,
> 
> ISO SQL/MM has chapters for NURBS and other magical geometry types. The text is unfortunately not free - I'd love us to have a copy for the PostGIS team at least. Last time I was touching that topic was around 2019 when I wanted to make TINs somewhat more compatible.
>  
> OGC has a very limited subset, and sometimes may contradict ISO.
> 
> 
> аў, 12 кас 2021, 01:13 карыстальнік Nyall Dawson <nyall.dawson at gmail.com> напісаў:
> Hi list,
> 
> Slightly off-topic question (but I figure the people who would know
> would be subscribed to this list):
> 
> Is anyone aware if there's been **any** talk/movement toward formally
> introducing bezier and/or elliptical curve support into the SF/SQL/MM
> specifications? Has anyone come across any informal approaches for
> describing elliptical curves/bezier in WKT?
> 
> Thanks in advance,
> Nyall
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