Thanks for all the advise. I think I've fixed all of Markina's village/brgy admin_centres http://overpass-turbo.eu/s/agI
On Thu, Jul 2, 2015 at 3:31 PM, Rally de Leon <rall...@gmail.com> wrote: > Erwin, > Confused: I thought all along that the subject about the > admin-polygon-relation's center (whatever that means). :-) That normally, in > the absence of a member 'admin_centre' node in the relation, the name-TEXT > of that administrative polygon is rendered in its geometric center. > > BUT, assigning a node as the admin_centre of an administrative_relation, > will for some reason render the TEXT value at the assigned 'location' of > said node. Which in most cases happens to be the place_name. Isn't that the > idea of Maning's question? hmmmm > > What's the difference if there's any? can you explain? (with example please > - yung pang elementary) for the benefit of the likes of me who are too lazy > to read the manual, hehe > > Rally > > On Thu, Jul 2, 2015 at 2:46 PM, Erwin Olario <gov...@gmail.com> wrote: >> >> >> Rally, Maning is asking about the administrative centres, and that would >> mean government authorities in charge of administration. They are not meant >> to represent the [geographic] "center of the village" which isn't something >> we normally map. >> >> As for place=village nodes, and like I wrote earlier, I put them in the >> commons (e.g. plaza, local park, etc.). >> >> Erwin >> >> >> >> Erwin Olario >> - - - - - - - - - - - - - - - - - - - >> » email: er...@ngnuity.net | gov...@gmail.com >> » mobile: (PHL): +63 908 817 2013 >> » OpenPGP key: 3A93D56B | 5D42 7CCB 8827 9046 1ACB 0B94 63A4 81CE 3A93 >> D56B >> >> On Thu, Jul 2, 2015 at 2:35 PM, Rally de Leon <rall...@gmail.com> wrote: >>> >>> Question: >>> - What's the best practice for adding admin_centre nodes to the village >>> boundary relation? Should it be the barangay hall (amenity=townhall) >>> or the place=village node? >>> >>> ------------ >>> For place nodes, a good practice IMHO is putting said node (eg. >>> place=village) >>> somewhere NEAR but NOT ON an "object or group of objects" which >>> represents the center of the village, typically any of the following: >>> -barangay hall >>> -village plaza (eg. where there's a multipurpose hall or basketball >>> court) >>> -the center of traditional grid-street (the oldest populated area of >>> the place) >>> >>> My interpretation of "somewhere near" is around 100-150 meters away; >>> on a not-so-important space (eg. a vacant area or generic community) >>> in the vicinity, where there are no other place nodes, or important >>> landmarks >>> like a park or institution. >>> >>> 1st Reason: >>> The 'place node' is represented by a TEXT on the map. >>> -a rendered TEXT always cover the lines and polygons under it. Thus, >>> putting a place_node very close to another object (eg. important >>> building), >>> will essentially make that building disappear (information visibility is >>> not optimized). >>> Said buildings will only appear when you zoom-in on a digital map. >>> But you cannot zoom-in on a paper map (2-D). So I thought, the best >>> practice >>> is to move it just enough not to cover important objects (part of the >>> art). >>> (until such time we have an algorithm to do that automatically) >>> >>> 2nd Reason: >>> Putting a place node inside a polygon with a large footprint the size of >>> a neighborhood, like an institutional_polygon or a park; will not just >>> potentially cover the 'name' of institution or park, but add unintended >>> confusion or misrepresentation of the polygon. >>> eg. If you put a place_node of Ermita inside Rizal Park's valencia >>> circle, >>> a tourist who wants to go to the heart of Ermita, ends up in Luneta >>> (which is technically Ermita) - but was not probably his/her intention >>> >>> 3rd Reason: >>> There are some LGU's (municipal and barangays) which relocated (or >>> isolated) >>> their new townhalls away from the village or town centers. >>> >>> Putting a place_node on top or near an isolated townhall (away from >>> populated center) >>> is not always representative of the general location of the village or >>> the town. >>> (this is a dilemna for Mamasapano, where townhall is located near the >>> boundary) >>> >>> ----------------------- >>> I'm voting +1 for: >>> place=village as admin_centre, provided it's located NEAR not ON the >>> object (amenity=townhall) >>> >>> Cheer, >>> Rally >>> >>> >>> >>> >>> _______________________________________________ >>> talk-ph mailing list >>> talk-ph@openstreetmap.org >>> https://lists.openstreetmap.org/listinfo/talk-ph >>> >> > -- cheers, maning ------------------------------------------------------ "Freedom is still the most radical idea of all" -N.Branden https://epsg4253.wordpress.com/ http://twitter.com/maningsambale ------------------------------------------------------ _______________________________________________ talk-ph mailing list talk-ph@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-ph
