[Talk-GB] UK coastline data

Devonshire maps at fortyfivekev.co.uk
Fri Jul 12 20:11:29 UTC 2019

On Fri, Jul 12, 2019, at 8:05 PM, Borbus wrote:.
> Does that matter, though? The way many things in OSM are tagged is quite
> arbitrary. What if "coastline" just means "mean high water level"? A tag
> for MHWL seems much more useful than "you would probably consider this
> the coast rather than a river bank".
> > I don't really care either way but what would be the benefit of changing
> > it to coastline (and slavishly copying the OS is not a benefit) ?
> The benefit is we don't have to arbitrarily draw the line somewhere. The
> tidal limit is well-defined so it's easy to be consistent.

Just because the coastline follows MLW as it goes around the coast doesn't mean it needs to follow every tidal waterway inland. That doesn't follow at all.

To achieve what you want you would need to add yet another way inside of the riverbank and intertidal areas which seems like a fair bit of effort to do for every river for no real benefit to map users whatsoever. Then you need to get it all to render right where you have tidal mud banks, etc. in the centre of the river.

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