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 <[email protected]> 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 > <[email protected]> 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 > > [email protected] > > http://lists.openstreetmap.org/listinfo/hot > > >
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