[HOT] Squared buildings

Cascafico Giovanni cascafico at gmail.com
Mon Apr 25 19:55:47 UTC 2016


+1

Then inital crap could anyway encourage locale mappers to make it better
and  hopefully one day cadastre will open data.
Besides, I've seen lots of real non-squared buildings which would risk to
be modified by unsupervised mass editings. Furthermore non-squared stuff is
useful anyway.. Ie to count, localize, identify pre & post disaster sites.

IMHO priority now is checking for completeness and publish example pics for
learning  damage detection

... And, why not, stimulate ID programmers to add square feature button :-)

--
cascafico.altervista.org
twitter.com <http://twitter.com/cascafico>/ <http://twitter.com/cascafico>
cascafico <http://twitter.com/cascafico>

Are non squared building really a big deal, apart from visually? Can we
not live at least initially with building as traced?

Cheers
Chris

On 14/04/16 at 07:42am, john whelan wrote:
> I think we are agreed that squaring individual buildings is a hassle for
> the validators.
>
> Do I hear that selecting all buildings with less than 7 nodes and
> squaring/resquaring them all at once is acceptable although not ideal?
>
> Thanks John
>
> On 14 April 2016 at 04:15, Jo <winfixit at gmail.com> wrote:
>
> > It would be far better to add a tool comparable to buildings-tools
plugin
> > to iD. We should have proposed that for GSoC2016... well, maybe next
year.
> >
> > Jo
> >
> > 2016-04-14 9:47 GMT+02:00 Suzan Reed <suzan at suzanreed.com>:
> >
> >> JOSM is the tool to use, I agree. However I did become somewhat of an
iD
> >> power user and so I just tried to square a number of polygons at once
> >> rather than one at a time. I tried many variations including selecting
all
> >> of them and then trying to apply the “s” tool and grouping them.
Nothing
> >> worked. Maybe the iD team could add that to iD? Then new mappers could
then
> >> square all their buildings in one go when the mistake is pointed out.
It
> >> would be quite useful. Squaring buildings in either iD or JOSM is a
> >> thankless and tedious task.
> >>
> >> Cheers!
> >> Suzan
> >>
> >>
> >> On Apr 13, 2016, at 11:01 PM, Ralf Stephan <gtrwst9 at gmail.com> wrote:
> >>
> >> I might be missing something but what's wrong with selecting all
> >> buildings in JOSM via Search (check if there are huts selected or
45-degree
> >> buildings of course) and then do a mass orthogonalization? That would
be
> >> part of a validation workflow and could even be automated.
> >>
> >> On Thu, Apr 14, 2016 at 7:48 AM Jo <winfixit at gmail.com> wrote:
> >> If you want a building squared at 45 degrees in JOSM, for some reason,
> >> you can start with a closed way with 8 nodes, then use the circle tool.
> >>
> >> Or you can press 'a' twice, allowing you to add the next part of a way
at
> >> 15 degree angle intervals. It's possible to create really nice
geometric
> >> shapes using this method.
> >>
> >> One has to know the tool one is working with.
> >>
> >> When people insist on working with iD, it's necessary to tell them
(over
> >> and over again) about the importance of doing the extra step of
squaring
> >> the rectangular buildings. For one thing, it makes using JOSM's extrude
> >> tool easier, if it's needed to improve the building.
> >>
> >> I understand that, as a validator, it's extremely tedious to square all
> >> those buildings, even when using the todo plugin and pressing
]q]q]q]q]q]
> >> hundreds of times. You could invalidate the tiles which contain mostly
> >> unsquared buildings. Or you could just leave them alone, post a remark
to
> >> the user and validate the tile anyway. Better that than becoming
burned out
> >> as a validator.
> >>
> >> I've been trying to get people to understand how much work it is to
> >> validate their tiles, when buildings are not squared by creating
> >> screencasts and posting a link to it in the comment field. This was
rather
> >> effective, but it still is rather time consuming and there are always
new
> >> users coming in, which, for some reason, were not trained with JOSM the
> >> power tool, but with iD instead.
> >>
> >> Anyway, those screencasts were also meant as a way to show people the
> >> advantages of using JOSM, but I don't know if I have been very
successful
> >> at getting them to start using it. It's hard to make people switch to
> >> something new, which is why I'll be teaching only JOSM, this Saturday
(also
> >> because I don't know iD all that well, ofc). I failed to follow up, as
I
> >> moved on to other projects that gave me more satisfaction (as a
validator).
> >>
> >> Polyglot
> >>
> >> 2016-04-14 4:15 GMT+02:00 Suzan Reed <suzan at suzanreed.com>:
> >> How about showing people how to map a building and square it right at
the
> >> beginning of mapping? It’s all one motion for me.
> >>
> >> Just a suggestion!
> >>
> >> Suzan
> >>
> >>
> >> On Apr 13, 2016, at 7:05 PM, Clifford Snow <clifford at snowandsnow.us>
> >> wrote:
> >>
> >>
> >> On Wed, Apr 13, 2016 at 4:52 PM, john whelan <jwhelan0112 at gmail.com>
> >> wrote:
> >> Seeing 200 unsquared buildings by one mapper on a tile makes me think
> >> they weren't using JOSM and the building-tool.  I could be wrong, the
same
> >> mapper also left behind three area=yes squares that just happened to
be the
> >> same as a building image.  Again it is perfectly possible to do this in
> >> JOSM to draw such a shape and tag it area=yes, though why anyone with
JOSM
> >> and the building_tool plugin would do such a thing I can't imagine.
> >>
> >> I'm asking a pragmatic question given that I'm seeing so many unsquared
> >> buildings when validating is it essential they be squared?  and if so
how
> >> do we get squared buildings?
> >>
> >> From my experience with hosting Missing Maps and HOT mapathons many of
> >> the mappers are first time contributors. We try to get them mapping as
> >> quickly as possible. After a period of time we introduce new
techniques,
> >> such as squaring buildings and copy paste. The behavior you observed
may be
> >> the lack of training. If its possible to find out if the mapper
attended an
> >> event and if so who organized it to give gentle constructive feedback
to
> >> the host. (Hopefully it wasn't one of ours)
> >>
> >> Clifford
> >>
> >>
> >> --
> >> @osm_seattle
> >> osm_seattle.snowandsnow.us
> >> OpenStreetMap: Maps with a human touch
> >> _______________________________________________
> >> HOT mailing list
> >> HOT at openstreetmap.org
> >> https://lists.openstreetmap.org/listinfo/hot
> >>
> >>
> >> _______________________________________________
> >> HOT mailing list
> >> HOT at openstreetmap.org
> >> https://lists.openstreetmap.org/listinfo/hot
> >>
> >> _______________________________________________
> >> HOT mailing list
> >> HOT at openstreetmap.org
> >> https://lists.openstreetmap.org/listinfo/hot
> >>
> >>
> >
> > _______________________________________________
> > HOT mailing list
> > HOT at openstreetmap.org
> > https://lists.openstreetmap.org/listinfo/hot
> >
> >

> _______________________________________________
> HOT mailing list
> HOT at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/hot


_______________________________________________
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/20160425/82cddfaa/attachment.html>


More information about the HOT mailing list