[HOT] Eurosha en République Centrafricaine, une premiere evaluation par les tuteurs souhaitee / Eurosha in CAR, hope for a first evaluation by the tutors

[Séverin MENARD]

Hi Kate,

Basically we do the same thing, sorry if I was not clear in my description.
building = yes, or whatever on the buildings themselves (I should have
mentioned that), and one and only POI as a node for the actual school (that
means the complex that contains several school buildings + other as
warehouse, toilets, etc.).

Sincerely,

Severin

On Tue, Nov 6, 2012 at 12:54 PM, Kate Chapman <kate at maploser.com> wrote:

> Severin,
>
> I think if mapping the POIs not inline with community practices it is
> important to make sure a script can at least fix the issues later. It
> is also important to capture the issues and have them worked into
> tools. In this case the HOT Export tool would be the appropriate tool
> that should be modified (if anyone is interested in working on this
> sort of thing awesome).  So key is making sure the POIs that will need
> to be modified to the polygons later are inside the polygons.
>
> These sorts of tool issues should be logged as features in the Github
> project for the tool that needs the modification:
> https://github.com/hotosm/hot-exports
>
> Are you mapping the building use when mapping the nodes and the
> building outlines? Basically here are the rules we follow in
> Indonesia:
>
> 1. Schools are mapped as points for the school, but all the buildings
> are mapping as building=school, but then a POI is made for the actual
> school (many schools here have more than one building). I don't think
> you should be mapping each individual school building that has
> classrooms as a separate item.  That is going to cause issues in
> analysis. For example with impact modeling done in Indonesia if you
> were to map all the classrooms as single schools the count of flooded
> facilities would be off. The count of buildings would be okay though.
>
> If you map the use of the building to the building outline you still
> will have one topology for those buildings, so I'm not sure why you
> would add a node for the type of school building on top. I don't see
> the ease this is creating.
>
> -Kate
>
>
>
>
> On Mon, Nov 5, 2012 at 6:40 AM, Séverin MENARD
> <severin.menard at hotosm.org> wrote:
> > (In English Below)
> >
> > Bonjour,
> >
> > Pour ceux qui veulent être tuteurs des volontaires Eurosha, l'équipe
> > déployée à Bangui en République Centrafricaine, maintenant installée, et
> > dotée d'une bonne connexion internet, mais souffrant malheureusement
> encore
> > de coupures d’électricité (voir leur dernière note de blog) a commencé à
> > mapper via l'imagerie Bing autour de leur maison (localisée ici) à
> l'aide de
> > ce job du HOT Tasking Manager et cela avance bien, comme le montre
> Whodidit
> > et ces deux exports Mapnik à quatre jours d'écart :
> >
> > https://docs.google.com/open?id=0B_C6dUAEbjPiTTItYWFLU1U3bHc
> > https://docs.google.com/open?id=0B_C6dUAEbjPiWDhoZ3poblBpb1E
> >
> > Le groupe va commencer le mapping terrain ce lundi.
> >
> > Pour corriger d'emblée les erreurs sur les dalles réalisées jusqu'ici,
> une
> > évaluation et des conseils par les tuteurs OSM serait bienvenue et
> > particulièrement utile. Pour ceux qui veulent rejoindre le tutorat,
> c'est à
> > cette adresse : https://groups.google.com/forum/#!forum/talk-eurosha-osm
> >
> > Juste un point méthodologique : pour le mapping humanitaire, pour
> faciliter
> > l'utilisation de la donnée OSM pour des analyses SIG, nous avons choisi
> des
> > règles strictes en matière de topologie :
> > - les bâtiments sont des closedways, évidemment, mais leur attributs ne
> > décrivent que leur structure physique
> > - les activités qu'ils contiennent sont portées par des nodes. Les clés
> shop
> > ou amenity par exemple sont toujours des nodes, dans le but de faciliter
> > l’échange de données humanitaires en n'ayant qu'un seul type de topologie
> > - dans le cas d'un objet complexe comme une école avec plusieurs
> bâtiments
> > et une enceinte, l'enceinte est un objet landuse (avec un type de clôture
> > s'il existe), les bâtiments sont donc décrits physiquement, et les
> activités
> > (il peut y avoir des bâtiments techniques, administratifs et bien sûr
> ceux
> > qui regroupent des salles de classe) sont des nodes. Un node principal
> > contenant l'information générale sur l'école (nom, opérateur, cycles
> > d'éducation, capacité, statut opérationnel...) sera placé au centre du
> > landuse
> >
> > Le preset utilisé est accessible depuis le job pour ceux intéressés, dans
> > l'onglet workflow.
> >
> > Encore une fois, merci beaucoup pour le support à ce projet qui
> bénéficiera
> > aux pays hôtes !
> >
> >
> > Severin, coordinateur du programme Eurosha pour HOT
> >
> >
> > ========================================
> >
> > Hi,
> >
> > For those that agreed to be OSM tutors of the Eurosha volunteers, the
> team
> > deployed in Bangui, Central African Republic, is now installed and has a
> > strong connection to the Internet, but still endures some power shortages
> > (see their last blog post) has started mapping through the Bing imagery
> in
> > the outskirts of their house (located here), with the support of this
> > Tasking manager job. They are moving forward quite well, as shown on
> > Whodidit and these two Mapnik exports taken between a four days interval:
> >
> > https://docs.google.com/open?id=0B_C6dUAEbjPiTTItYWFLU1U3bHc
> > https://docs.google.com/open?id=0B_C6dUAEbjPiWDhoZ3poblBpb1E
> >
> > The team will start the field mapping this Monday.
> >
> > An evaluation and advices to the volunteers by the OSM tutors of the TM
> grid
> > cells done so far would be really useful and supportive in order to
> correct
> > quickly the mistakes made. For those who would like to become tutors,
> please
> > join https://groups.google.com/forum/#!forum/talk-eurosha-osm
> >
> > Just some methodological elements: for the purposes of the humanitarian
> > mapping, in order to get easy the GIS analysis based on this baseline
> data,
> > we defined these topological rules:
> > - buildings are obviously closedways, with attributes only describing
> their
> > physical features
> > - the activities they hold are described by nodes. The shop or amenity
> keys,
> > for example, are always put only on nodes, in order to make the exchange
> of
> > humanitarian data easier, by having only one type of topology by tags
>  and
> > category of information
> > - in the event of a complex object as a school with several buildings
> and a
> > enclosure, this latter is a landuse object (with a tag describing the
> kind
> > of surrounding walls if there is some), the buildings described for their
> > structure and the activities (eg plant room, warehouse, offices and of
> > course buildings hosting classrooms) are nodes. A main node containing
> the
> > general invigoration for the school (name, operator, series, capacity,
> > operational status,..) will be located in the middle of the enclosure.
> >
> > The preset that is used can be accessed from the TM job, workflow tab,
> for
> > anyone interested.
> >
> > Once again, thank you very much for the support provided to this project
> > that will benefit to the hosting countries!
> >
> >
> > Severin, HOT coordinator for the Eurosha project
> >
> > _______________________________________________
> > HOT mailing list
> > HOT at openstreetmap.org
> > http://lists.openstreetmap.org/listinfo/hot
> >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/hot/attachments/20121106/23cd6255/attachment.html>