[postgis-devel] GeoJSON Precision

[Paul Ramsey]

This blog post reminded me:

https://rapidlasso.com/2019/05/06/how-many-decimal-digits-for-storing-longitude-latitude/ <https://rapidlasso.com/2019/05/06/how-many-decimal-digits-for-storing-longitude-latitude/>

GeoJSON generation uses DBL_DIG as the number of decimal places, which is… a lot? 15 or 16 depending on your platform. I wonder if maybe we should crank that down to 8 as the default and let people crank it *up* as desired rather than emitting nanometer precision and expecting people to crank it *down* (they don’t).

Thoughts?

P
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