[Talk-GB] Alton Water

Jez Nicholson jez.nicholson at gmail.com
Wed Aug 17 09:52:38 UTC 2022


I didn't know about the node limit, so thank you for that (Alan & Ed).
Worth me asking before messing with a large body of water!

On Wed, Aug 17, 2022 at 10:04 AM Ed Loach <edloach at gmail.com> wrote:

> On Tue, 16 Aug 2022, 16:36 Jez Nicholson, <mailto:jez.nicholson at gmail.com>
> wrote:
> > On the large reservoir Alton Water, would there be any reason why the
> lines that make up the water's edge
> > are not merged into a single polygon/way?
> https://www.openstreetmap.org/relation/1306769
> >
> > Perhaps the answer is that they were surveyed as separate stretches.
>
> Alan replied
> > Were they part of their own separate multipolygons at some point? The
> mapper may also have thought
> > they were getting close to the node limit for a single way.
> >
> > With it having inner members it may just have been easier to split as it
> had to be a multipolygon anyway.
>
> I suspect node limit. Version 3 of
> https://www.openstreetmap.org/way/66564484 had 1937 which is fairly close
> to the 2000 node limit. Currently it looks like the outer ways could be
> merged without issue though.
>
> Ed
>
>
>
>
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