[HOT] *** Emergency Request *** Guinea Conakry- Gueckedou, Macenta, Kissidougou

[nicolas chavent]

Thanks Claire, you are spot on about editing_conflict-related issues we
faced with the TM, while waiting for enhancements (selection of tasks you
outlined for example), in mapping parties using the Tasking Manager, we
avoid taking tasks close to on-going tasks, this works out relatively well.


On Wed, Mar 26, 2014 at 9:14 AM, Claire Halleux <Claire.du.RGC at gmail.com>wrote:

> Hey,
> I think that what Michael wanted to point out is the following:
> when you have 2 different tasks covering the same area that are published
> simultaneously in the tasking manager, conflicts between them are possible.
> And that is a bit of a different issue as mentioned by Pierre and Andrew
> (whose advices are still relevant of course).
>
> At my knowledge, there's no way to block a square in a task when its
> matching area in the other task is being edited.
> We could maybe try to give additional directions to contributors on which
> squares to work on first, when they are covered by both images, in order to
> help prevent those conflicts.
>
> Claire
>
>
> 2014-03-25 23:11 GMT+01:00 Andrew Buck <andrew.r.buck at gmail.com>:
>
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>> Another thing which helps avoid conflicts in the first place is when
>> you are tracing roads, make sure you put a node at __every__
>> interesection the road is going to connect to in the future, even if
>> that other road isn't already in the database yet.  That way, later
>> on, when someone traces in that road, they can connect to your road
>> without modifying it since there is already a node at the intersection
>> for them to connect to.  This means that the road gets created nearly
>> complete in version 1 and the only future changes to it will be minor
>> corrections or changes to the tags; but you don't get 100 different
>> versions, each with just one new node where someone connected a cross
>> road.
>>
>> - -AndrewBuck
>>
>>
>> On 03/25/2014 04:49 PM, Pierre Béland wrote:
>> >
>> > HI Michael,
>> >
>> > Yes there are risks of collision while editing. The Task Manager
>> > helps to reduce this problem. But we stil have to be careful and
>> > find various ways to reduce risks of collision
>> >
>> > If for example, you cross a primary road and decide to connect a
>> > new road, you have the risk to collide with someonelse editing at
>> > kilometers from you. Then, to be safe, it is better to save before
>> > you do this operation. You can also select this long road, and in
>> > JOSM file menu, select the item Update selected data.  You could
>> > also revise all the data aready loaded.
>> >
>> > This will assure that you have the most recent version of this way.
>> > And save again.
>> >
>> > Working this way with frequent updates of data, I select the option
>> > to keep the Changeset open after the upload. This avoid to create a
>> > changeset for just one or a few objects that I upload.
>> >
>> >
>> >
>> >
>> >
>> > Pierre
>> >
>> >
>> >
>> > ________________________________ De : Michael Judex
>> > <m.judex at gmx.de> À : hot at openstreetmap.org Envoyé le : Mardi 25
>> > mars 2014 17h31 Objet : Re: [HOT] *** Emergency Request *** Guinea
>> > Conakry- Gueckedou, Macenta, Kissidougou
>> >
>> >
>> >
>> > Hi all,
>> >
>> > my name is Michael and I support HOT as long as I've time. I'm
>> > quite experience with satellite image interpretation (and crisis
>> > mapping, professionally)  and I startet to map for task 463 in the
>> > north west of Guéckédou. While uploading I got a version conflict.
>> > This is probaly due to parallel working with task 465 (higher
>> > resolution imagery) for the same area. Just want to highlight this
>> > issue and I dont know if that problem is already solved (or if that
>> > is a problem at all).
>> >
>> > best regards, Michael
>> >
>>
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>
>
>
> --
> Claire Halleux
> *- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*
>
> *Geographic Information Systems Specialist*
> *Kinshasa, Democratic Rep. of the Congo*
> *Mobile: +243 99 256 9980 <%2B243%2099%20256%209980>*
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-- 
Nicolas Chavent
Humanitarian OpenStreetMap Team
http://hot.openstreetmap.org/
Mobile (FRA): +33 (0)6 52 40 78 20
Email: nicolas.chavent at hotosm.org
Email: nicolas.chavent at gmail.com
Skype: c_nicolas
Twitter: nicolas_chavent
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