[OSM-talk] landsat.jar / getting more coast uploaded

[Dermot McNally]

On 13/05/07, Jonathan McDowell <noodles at earth.li> wrote:
> Hi.
>
> I've slowly been doing a few more bits of Northern Ireland. What looks
> really odd at present is the lack of Lough Neigh, right in the middle.
> I went looking for landsat.jar for JOSM to try and get something
> roughly correct in shape present, but I can't seem to find it - has it
> been discontinued and is there anything else that might help me out
> instead? Alternatively can someone who's doing a coastline import
> upload the lough (assuming it does cover large bodies of water within a
> country and not just literally the coast).

Hi,

>From your request, I'm guessing (and hoping) you aren't uploading any
coastline yourself. I have uploaded (unless I've missed a bit) the
entire Irish coastline, and cleaned up a lot of it including all of
the NI "outer coast" (i.e. not including Loughs Neagh, Erne or
anything else inland that isn't an actual inlet or estuary. I'm
documenting my work here:

http://wiki.openstreetmap.org/index.php/Almien_coastlines_%28PGS%29#People_uploading_data

A lot of NI is still looking fairly borked, but for the past week it's
been hard to tell how much of that is down to a re-rendering queue.
There will almost certainly be some errors I've left, probably due
mostly to the following:

* Islands whose coastlines face the wrong way (not anti-clockwise)

* Deep inlets with open ends where my multi-stage coastline input
bounding boxes didn't enclose them fully. These could be finished by
tracing or by carefully selecting a bounding box for the missing bits.

* Gaps in the coastline for whatever reason

* Errors arising out of duplicate node removal

* Coastline ways that I overlooked when correcting the directions.

For the specific case of Lough Neagh, I'm pretty sure that one of my
coastline imports had a bounding box that would have enclosed at least
some of the Lough, so I'm therefore going to assume that internal
waterways are not included on the source data. Which also means that
your safe to hack on any of this without it impacting on what I'm
doing.

Feel free to correct any of my stuff too - now that tiles at home is
running again, the maplint layer should make it easy to spot funny
stuff like out-of-order ways or duplicated nodes. Where those appear,
you can either assume that I haven't been there yet or have missed a
bit.

One more point for anyone else working on the Irish coast. When I went
to clean up the area around Cork Harbour I found, to my shock, double
ways for much of the region. I'm assuming that somebody else had
imported the coastline for just that area (I had looked around a good
bit first, but it's a long coast...). The cleanup is now complete, but
there's every chance I opened up a gap or two, so it's one to look out
for.

Dermot