[Talk-us] NHD data import question

[Ian Dees]

Yep: if you have the ability and time to cut the national dataset into
subbasins I'll give you an SFTP to upload them to and I'll start converting
them to OSM.

>From there we could add links to the pre-converted subbasin OSM bundles to
the wiki pages.

Bonus points for converting the subbasin boundary files to KML/GeoJSON/GML
and overlaying them on a "import status" map that a user could click on to
find their subbasin. I'd be happy to host all this.

-Ian

On Thu, Apr 28, 2011 at 7:37 AM, Ben Supnik <bsupnik at xsquawkbox.net> wrote:

> Hi Y'all,
>
> So let me see if I can summarize where we are so far...
>
> - I could cut the NHD data down to sub-basins. It would not be a perfect
> cutting (e.g. each sub-basin might need a little bit of data "hanging off"
> since the raw data isn't cut on sub-basin boundaries) but it would be pretty
> close, and we expect users to manually check their imports.  I could also
> potentially convert the shapefiles to .osm format on a sub-basin basis.
>
> - It would be nice to make it easier for users to find their sub-basins.
>  I'm afraid I don't know how to use the mapnik tool chain to create a slippy
> map though.  (Left to my own, I would probably convert the sub-basin
> boundaries to KML...that makes me a heretic, right? :-)  We could also just
> post the boundary shapefile, but some users may not be comfortable with
> shapefiles.
>
> - Importing on a sub-basin basis should be possible in JOSM, if not a bit
> of a mouthful.  Importing via potlatch2 vector layers should be possible -
> others have seen this work although I have not.
>
> cheers
> Ben
>
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