[HOT] Helping Japan by tracing
emilie.laffray at gmail.com
Mon Mar 14 20:50:34 GMT 2011
the coastline in Japan is coming from the Japanese governement and tends to
be pretty good. It is the reason why they are both natural=coastline and
MLIT is one of the Japanese ministries which has tons of open Data. Some of
the data can be pretty old some can be pretty recent. I suspect you can
alter them if you feel that the imagery represents the ground truth, but be
aware that some of those forests are huge.
On 14 March 2011 18:24, Hans van Wijk <hvwijk at planet.nl> wrote:
> Hello all,
> When I discovered openstreetmap in august 2008, I rapidly joined the
> community. I like helping with improving maps at disaster areas around the
> world. I was able to do that for Haiti a little over a year ago, because not
> much was mapped there yet. I humbly consider myself moderately experienced
> and work with the brilliant JOSM package.
> I'm terrible at using mailing lists though, am more of a forum guy, but
> here I am anyway:
> What I did so far in the Sendai area of Japan was not more then mostly
> tracing a couple of riverbanks with the small patch of bing high res imagery
> there (*http://www.openstreetmap.org/user/Hans%20van%20Wijk/edits*<http://www.openstreetmap.org/user/Hans%20van%20Wijk/edits>),
> but like to do more. I noticed lots of objects from 'MLIT, Japan'.
> Unfortunately they look like being more or less obsoleted by the far better
> bing imagery. The question is: May I alter them and even delete them if
> necessary? I'm having a hard time deciding that for myself. A good example
> is the natural=wood patches on Shichigahama. *http://osm.org/go/7TQ3Q03h*<http://osm.org/go/7TQ3Q03h>
> The coastline is a mix between natural=coastline and
> boundary=administrative. Ideally they should be separate, or not? I like to
> also adjust the coastline, but then I also move the boundary, which is
> unwanted I assume, right?
> Also, I need some reassuring: am I doing some good here?
> Hoping to here from you!
> Best regards,
> Hans van Wijk
> HOT mailing list
> HOT at openstreetmap.org
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