Hello Alberto, I like your remarks and would like to work together to improve things.
On 2017-06-14 19:06, Viking wrote: >> in OsmHydrant [1] there is already fire_hydrant:coupling_type with various >> values from Storz to Barcelona >> (https://taginfo.openstreetmap.org/keys/fire_hydrant:coupling_type). Then >> there is fire_hydrant:couplings to complement that, describing the > actual >> connectors: https://taginfo.openstreetmap.org/keys/fire_hydrant%3Acouplings >> >> This implementation might not be the best for various reasons, but we could >> consolidate its structure/values if needed. >> >> [1] https://www.osmhydrant.org/en/ > It is a bad implementation: first of all because there is no reference on > hydrants wiki page (and indeed I didn't know it) and consequentely there is a > wide range of heterogeneous values that are almost useless for automatic data > search. > By the way, let's try to improve these existing tags. > fire_hydrant:coupling_type indicates the standard (UNI, Storz,...) > fire_hydrant:couplings indicates the number and diameters. > Right? Right! > > First question: is it possible that the same hydrant has different coupling > types, for example Storz and UNI? I know that in Italy, where I work as > fireman, this is not possible, so a single value in > fire_hydrant:coupling_type is enough. In Austria I've only seen hydrants with one connector type (mostly Storz). S > Second question: how would you indicate the number of couplings? For example > an hydrant with two UNI 45 mm couplings and one UNI 70 mm coupling would be: > fire_hydrant:coupling_type=UNI > > fire_hydrant:couplings=45;45;70 > OR > fire_hydrant:couplings=2 x 45;70 > OR...? So far it was really up to the contributor on OsmHydrant but the recommended way in this case have been so far: fire_hydrant:couplings=2x45/1x70 Before going on, I've to explain the rationale behind using that scheme first. In Austria we're using character A for 110mm diameter, B for for 75mm and C for either 52 (or 42). In this case it looks easily readable: "1B/2C" or "1A/2B". When it comes to "2x45/1x70" I totally agree that "45;45;70" is much better. Back in time when doing the implementation for OsmHydrant, I didn't know about using the semicolon to split values, but I like it more than the forward slash. Coming back to the Austrian "1A/2B" I would additionally allow using these characters instead of diameter values as well resulting in: "A;B;B" If the proposal is accepted I'd propose migrating all values automatically and changing OsmHydrant. Your scheme with repeating the diameter is much better readable & parse-able by humans & tools. Best regards, Robert > > I would prefer 45;45;70 because it's more explicit and less prone to errors. > The use of semicolons to separate different values is commonly accepted on > the wiki. > > Alberto > > > --- > Questa e-mail รจ stata controllata per individuare virus con Avast antivirus. > https://www.avast.com/antivirus > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
