Hi all,
Just a quick message to share my point of view : mapswipe allows way
more people to take part into Missing Maps than OSM, even though it's
not direct mapping...Anyone who doesnt't want or doesn't know how to map
in OSM can take part in this effort. That's its best advantage and where
it save mappers time...
Bests
Violaine
Le 26/03/2017 à 17:58, john whelan a écrit :
>It's definitely useful to save actual mapper's time. For validation
I'm not sure it would be a big help.
I must be missing something. Mapswipe uses four passes and then we
get different sized tiles out of it. We still need an old fashioned
mapper to map the tile. Traditionally if a mapper thought the tile
size was too big they would split it to give different sized tiles.
How does it save mapper time? Does that take into account the four
passes that mapswipe uses first?
On the validation side really all you need is to inspect the tile and
say its OK. If the tile is good enough you don't need to add
anything. From a practical point of view a conventional validator
could do it in one pass provided we trusted them. You'd still want to
run JOSM for things like duplicate segments, crossing ways etc but
that's faster than having to do a visual inspection as well.
Cheerio John
On 26 March 2017 at 10:46, Jo <[email protected]
<mailto:[email protected]>> wrote:
It's definitely useful to save actual mapper's time. For
validation I'm not sure it would be a big help.
Op 26 mrt. 2017 3:12 p.m. schreef "john whelan"
<[email protected] <mailto:[email protected]>>:
Would we be better ahead by using something like mapswipe to
validate? If a tile is OK there is no need to add to the map
from the tool. If three mappers tick it then I would say its
good to go.
The current system we use four mappers to mapswipe, then a
conventional mapper to map followed by a validator. Six
passes to get a validated tile. The other way would give you
one in four passes three of which would be on smartphones.
Cheerio John
On 26 March 2017 at 09:01, john whelan <[email protected]
<mailto:[email protected]>> wrote:
But does it address the concern about how much effort is
expended compared to the value added?
Cheerio John
On 26 March 2017 at 08:44, Ralf Stephan <[email protected]
<mailto:[email protected]>> wrote:
Search is your friend. Searching for Mapswipe yields
eg http://tasks.hotosm.org/project/2521
<http://tasks.hotosm.org/project/2521>
where clearly the tiles are preselected. Also the
description: "The data are prepared by MapSwipe"
Regards,
On Sun, Mar 26, 2017 at 2:40 PM john whelan
<[email protected] <mailto:[email protected]>>
wrote:
I seem to recall the same area is mapswiped by
four different people before a mapper maps it.
Other than the size of the tile or which area to
give priority to I think the advantage is that
people can do it anywhere on a smartphone.
I would hesitate to say if it is worth doing or
not. In future there might be a way to bring
something into OSM via a review process.
Cheerio John
On 26 March 2017 at 08:22, Hakuch
<[email protected] <mailto:[email protected]>> wrote:
On 26.03.2017 14 <tel:26.03.2017%2014>:13,
john whelan wrote:
> My understanding is that mapswipe is only
used to identify where to map.
> Not to contribute to the map.
>
> Cheerio John
of course there is no data transmitted to OSM,
but how is the data (I
mean, marked tiles) used after I transmitted
it? How much is it worth to
do that mapswiping?
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