[OSM-talk] OTG rule, borders & mountains existing | Re: Crimea situation - on the ground
Colin Smale
colin.smale at xs4all.nl
Thu Feb 13 07:41:47 UTC 2020
On 2020-02-13 00:15, Martin Koppenhoefer wrote:
> sent from a phone
>
>> Il giorno 13 feb 2020, alle ore 00:05, Colin Smale <colin.smale at xs4all.nl> ha scritto:
>>
>> Locations are stored in OSM as pairs of {lat,lon} and I assume these are both 64-bit floats in the database.
>
> AFAIK they are stored as integers (shifting the decimals)
If so then then my comments about preserving precision still apply to
all "client" software and I bet the majority uses float. Then an
innocent update to a tag on a node can end up unintentionally moving the
location slightly, losing precision.
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