[HOT] landuse/cover import in Cameroon?

Sander Deryckere sanderd17 at gmail.com
Fri Jan 22 09:09:51 UTC 2016

I just made a forum post about it too:

The data is just horrible. Next to all technical issues (like overlapping
nodes and ways, and nodes distributed in a grid), there are also tagging
issues. The import is done in tiles, and when passing from one tile to the
other, scrub suddenly changes to farmland, and forest to scrub.
Adittionally, instead of mapping residential area around residential
centers, they map scrub in many cases.

I would expect this data to be deduced from height measurements, where low
height is just considered scrub or farmland (depending on the importer),
and high features are considered forest.

As the import isn't discussed, and it's not even sure the data source is
legal, I'd be in favour of a complete revert before it turns into an nth
TIGER nightmare.


2016-01-15 15:38 GMT+01:00 maning sambale <emmanuel.sambale at gmail.com>:

> Hi,
> Yesterday, I stumbled into large changesets (>50K additions)[0] over
> Cameroon.
> Inspecting further this looks like landuse/cover data taken from
> satellite imagery and then converted to vector [1].
> Further, this seems like a group mapping [2].  9 people with changeset
> comment ENEO in Cameroon.
> Looking into the osm wiki, I didn't see any document about this.  I've
> not inspected any further if data is good or not.  Its just that the
> changeset is too big.
> I'm posting here since I know we have HOT initiatives in the region
> (might be related, might be not).  I'm just curious.
> [0] https://www.openstreetmap.org/changeset/36566406
> [1] https://www.openstreetmap.org/way/391344251
> [2]
> http://resultmaps.neis-one.org/osm-changesets?comment=ENEO#8/4.962/11.714
> --
> cheers,
> maning
> ------------------------------------------------------
> "Freedom is still the most radical idea of all" -N.Branden
> https://epsg4253.wordpress.com/
> http://twitter.com/maningsambale
> ------------------------------------------------------
> _______________________________________________
> HOT mailing list
> HOT at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/hot
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/hot/attachments/20160122/eb688217/attachment.html>

More information about the HOT mailing list