[OSM-talk-be] interesting map of contributions

[Marc Gemis]

Joost,

Thanks for explaining the colorization on the map. Can't open the ITO map,
although I have an account there. I knew the two other links. I use them to
see my addr:housenumber counter and how crazy/insane I am :-)

your mail was done correctly.

regards

m


On Sun, Sep 22, 2013 at 2:25 PM, joost schouppe <joost.schouppe at gmail.com>wrote:

> Marc,
>
> It does not necessarily mean most roads were adde by one person. Several
> reasons:
> - the map shows all "way"s, which includes all land use as well
> - the map show the latest contributor, which can be different from the
> person who first added the way
>
> That said, in fact a <lot> of data was put by just a few people. The user
> you have in mind is probably lodde1949 ,who has added a tremendous amount
> of information. With ITO maps ( eg
> http://www.itoworld.com/product/osm/map?colour=table&area=7083:4&sort=total-&show=user:48476 )
> you can see which user last touched the ways in a given area. In the area
> Lodde works on, it's hard to find ways he didn't last touch.
>
> The ITO map is also pretty cool to quantify how many different people
> added how much info to the map. In cities, often 20-30% comes from just one
> person; 80% form less than 10 people. That doesn't mean so few people
> contributed: people who added info a long time ago are probably gone from
> these kinds of analysis; some data isn't counted, and the last percentage
> point of data is probably the most important one to make a good map great.
>
> If you want identify single contirbutors contributions, you can also use
> http://www.yosmhm.neis-one.org to visuelaize the area where they work,
> and http://hdyc.neis-one.org to quantify that work.
>
> Regards,
> joost schouppe
> (I hope this mail is sent the right way; it's my first to a mailing list
>
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