> On Nov 6, 2023, at 3:39 PM, Paul Ramsey <pram...@cleverelephant.ca> wrote: > > > >> On Nov 6, 2023, at 3:33 PM, Marco Boeringa <ma...@boeringa.demon.nl> wrote: >> >> Well, yes indeed that is what is happening, 180 came out of the reprojection >> steps as -180. Full output geometry below. Is there any way to prevent this >> behavior? >> >> Marco >> > > Not really… Either snap to grid or reduce precision > > https://postgis.net/docs/ST_ReducePrecision.html > https://postgis.net/docs/ST_SnapToGrid.html > > will get you back onto the dividing line (note that it is at > -180.00000000000014), but that won’t help in flipping -180 to 180. For your > particular case, applying > > https://postgis.net/docs/ST_ShiftLongitude.html > > will fix it, I think, though not in generality
I think using https://postgis.net/docs/ST_WrapX.html would allow a more general purpose solution. At least one you have more control over. P > > P
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