Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-04-08 Thread Paul Johnson
On Mar 30, 2015 6:27 AM, "Martin Koppenhoefer" wrote: > > I suggest to tag volcanos on ways rather than nodes, if possible. Currently the wiki states that only nodes should be used, and while I agree that nodes might be a preliminary way of mapping, I think that typically volcanos are bigger than

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-04-01 Thread johnw
I’m an idiot and got confused Martin. I went off memory, and I am wrong, Vesuvius is a stratovolcano. The Hawaii volcanoes are shield volcanoes http://en.wikipedia.org/wiki/Shield_volcano#/media/File:Mauna_Kea_from_Mauna_Loa_Observatory,_Hawaii_-_20100913.jpg

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-31 Thread Bryce Nesbitt
On Tue, Mar 31, 2015 at 1:22 PM, Daniel Koć wrote: > Generally speaking they can, of course, but in case of default osm-carto > rendering there's no chance currently, since Andy is totally opposed to any > subjective measures: > However if we can find some - more or less - objective features, they

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-31 Thread johnw
We have the landmark tag - maybe natural=volcano/peak + landmark gets it’s own rendering terms? There is the “hundred mountains of Japan” list - and 3 mountains in my prefecture are also considered “the three mountains of Gunma” - Akagi is on both. Would that let me claim it is not subjectively

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-31 Thread John Willis
Mt Fuji is a very special volcano. I should have used another example, but everyone knows Fuji as a "cone". Fuji is a stratovolcano on top of a shield volcano, hence the similar sloping sides at the bottom. However, the cone from the halfway point is much steeper. Pic from halfway up. Most of t

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-31 Thread Daniel Koć
W dniu 31.03.2015 11:22, Janko Mihelić napisał(a): Nominatim heavily uses the Wikipedia tag to decide which search result to put in front. So if you write "Paris" in the search box, Paris, Texas is not going to be the first result. They look at the length of the article, number of translated arti

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-31 Thread Janko Mihelić
Nominatim heavily uses the Wikipedia tag to decide which search result to put in front. So if you write "Paris" in the search box, Paris, Texas is not going to be the first result. They look at the length of the article, number of translated articles, or something like that. I see no reason rendere

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-31 Thread Martin Koppenhoefer
2015-03-31 0:14 GMT+02:00 John Willis : > while some of them are iconic cones,(Fuji), and some are shields which are > very flat (Vesuvius), sorry for picking this, because I am aware this was not the main content of your message, still as living personally in relative proximity to the Vesuvius

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-31 Thread Martin Koppenhoefer
2015-03-30 18:58 GMT+02:00 Bryce Nesbitt : > At a first level approximation, a volcano is a peak. Even on the caldera > rim there's still a high point, and that's the peak yes, but the natural=volcano page states that you shouldn't use this peak point, you should rather "Place [the node] as cl

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Dave Swarthout
At a first level approximation, a volcano is a peak. Even on the caldera rim there's still a high point, and that's the peak. If you want to map the caldera create a key for that. If you want to map the volcano extent, good luck. Where's the base of a mountain? What defines the edge of a volcano

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Daniel Koć
W dniu 31.03.2015 0:47, John Willis napisał(a): They worry so much about vandalism and "verifiability" - but landmark and "importance" level of local things can only be mapped and verified by local mappers - mappers are trusted to map so many things, this should be one of them. I don't know th

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread John Willis
I love the idea. I suggested it. -carto hated it. They worry so much about vandalism and "verifiability" - but landmark and "importance" level of local things can only be mapped and verified by local mappers - mappers are trusted to map so many things, this should be one of them. We have ho

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Bryce Nesbitt
>John Willis >There is no way to say "this is a minor hill". - I'm not talking about mountaineering definitions and sub-peak prominence, but just that >rendering order and priority in OSM/carto has no method for saying "this is a tiny but named hill 25m tall in a city park" and "this is an internat

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread John Willis
Volcanos have a life cycle, and while some of them are iconic cones,(Fuji), and some are shields which are very flat (Vesuvius), most are not. There are calderas and collapsed old volcanoes and partially destroyed but still active volcanoes (mt st Helens) Japan has hundreds of active and and o

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Bryce Nesbitt
-1 on this. At a first level approximation, a volcano is a peak. Even on the caldera rim there's still a high point, and that's the peak. If you want to map the caldera create a key for that. If you want to map the volcano extent, good luck. Where's the base of a mountain? What defines the edge

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Martin Koppenhoefer
2015-03-30 17:09 GMT+02:00 fly : > volcano and peak are both mountains and we do not have an area tagging > system for fuzzy areas. > with the not so subtle difference that mountains do have a peak, while volcanos don't, they typically have a "hole". Cheers, Martin _

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread fly
Am 30.03.2015 um 16:58 schrieb Janko Mihelić: > In a broader sense, volcano is a mountain that appeared after a volcano > blew up. The problem is, we don't yet have a way of mapping mountains. > There was a suggestion to map a mountain by tagging mountain=xyz on all > entities that define a mountai

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Janko Mihelić
In a broader sense, volcano is a mountain that appeared after a volcano blew up. The problem is, we don't yet have a way of mapping mountains. There was a suggestion to map a mountain by tagging mountain=xyz on all entities that define a mountain, that is peaks, ridges, mountain passes and such. Ma

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Martin Koppenhoefer
2015-03-30 15:25 GMT+02:00 Richard Z. : > no it was not. As pointed out in wiki it was part of the original > proposal, Geozeisig only corrected the infobox to reflect what > the text says. > thank you for pointing this out, I wasn't aware of it. Still, 5% of all volcanos are mapped on ways.

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Richard Z.
Hi, http://wiki.openstreetmap.org/wiki/Talk:Tag:natural%3Dlava has some thoughts how to map lava fields and calderas - I think those should be finalized and documented. Cut & paste Lava fields natural=bare_rock ("rock" being used in the broad sense of a consolidated (solid) or unconsoli

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Richard Z.
On Mon, Mar 30, 2015 at 01:26:35PM +0200, Martin Koppenhoefer wrote: > Just discovered, this was changed only one year ago by user geozeisig, > before there was a recommendation for areas as well: > http://wiki.openstreetmap.org/w/index.php?title=Tag%3Anatural%3Dvolcano&diff=996213&oldid=995784 n

Re: [Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Tom Pfeifer
In contrast to a peak, which is a point by definition, a volcano is often characterised by its crater, thus a polygon makes perfect sense. I see people drawing perfectly round chimneys with one node per brick, thus a volcano certainly deserves its area. I would have recommended to sync this acti

[Tagging] recommend tagging of volcanos as ways rather than nodes

2015-03-30 Thread Martin Koppenhoefer
I suggest to tag volcanos on ways rather than nodes, if possible. Currently the wiki states that only nodes should be used, and while I agree that nodes might be a preliminary way of mapping, I think that typically volcanos are bigger than just a point, and would merit an area to be mapped. http:/