Re: [Tagging] Difference between lighthouses and beacons

2018-01-19 Thread Paul Allen
On Sat, Jan 20, 2018 at 12:04 AM, marc marc wrote: > Le 19. 01. 18 à 23:42, Graeme Fitzpatrick a écrit : > > 1. A lighthouse is a usually tall building or tower that has a lamp at > > the top. > > has or had > Irrespective of technical definitions, I think you'll find

Re: [Tagging] Difference between lighthouses and beacons

2018-01-19 Thread marc marc
Le 19. 01. 18 à 23:42, Graeme Fitzpatrick a écrit : > 1. A lighthouse is a usually tall building or tower that has a lamp at > the top. has or had ___ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging

Re: [Tagging] Difference between lighthouses and beacons

2018-01-19 Thread Graeme Fitzpatrick
On 20 January 2018 at 08:18, Malcolm Herring wrote: > I think from all the cases presented in this thread, we could perhaps > frame two broader definitions: > > 1. A lighthouse is a building that has a lamp room at the top. > > 2. A beacon is a mast surmounted by

Re: [Tagging] Difference between lighthouses and beacons

2018-01-19 Thread Malcolm Herring
I think from all the cases presented in this thread, we could perhaps frame two broader definitions: 1. A lighthouse is a building that has a lamp room at the top. 2. A beacon is a mast surmounted by a light. ___ Tagging mailing list

Re: [Tagging] Difference between lighthouses and beacons

2018-01-19 Thread Martin Koppenhoefer
sent from a phone > On 19. Jan 2018, at 03:16, Andrew Davidson wrote: > > Don't be too sure about that. I thought that we could all agree that a > lighthouse had some thing to do with light and houses, but it turns out > that's not an universally held opinion. rather

Re: [Tagging] Difference between lighthouses and beacons

2018-01-19 Thread Philip Barnes
On Fri, 2018-01-19 at 10:49 +, Janko Mihelić wrote: > I think the border between lighthouses and beacons can only be fuzzy, > we can never make a clear line. We can have a few pointers like > "living quarters, big in size", but nothing set in stone. And that is > ok because their purpose is

Re: [Tagging] Difference between lighthouses and beacons

2018-01-19 Thread Janko Mihelić
I think the border between lighthouses and beacons can only be fuzzy, we can never make a clear line. We can have a few pointers like "living quarters, big in size", but nothing set in stone. And that is ok because their purpose is the same, so some overlaping is not a problem. But I believe we do

Re: [Tagging] Difference between lighthouses and beacons

2018-01-18 Thread Andrew Davidson
On 19/01/18 13:23, Steve Doerr wrote: Here's the OED definition: 'A tower or other structure, with a powerful light or lights (originally a beacon) at the top, erected at some important or dangerous point on or near the sea-coast for the guidance of mariners.' That's pretty much the

Re: [Tagging] Difference between lighthouses and beacons

2018-01-18 Thread Andrew Davidson
On 19/01/18 13:23, Steve Doerr wrote: Depends what you mean by 'houses'. I was hoping we meant in the sense of providing space for. As in this structure houses a light. ___ Tagging mailing list Tagging@openstreetmap.org

Re: [Tagging] Difference between lighthouses and beacons

2018-01-18 Thread Andrew Davidson
On 19/01/18 01:25, Malcolm Herring wrote: On 18/01/2018 13:52, Janko Mihelić wrote: It is important mappers doing a surveys can apply correct tags to observed objects without any knowledge of their function. Interesting tagging theory there. So I can only tag: highway=road because you

Re: [Tagging] Difference between lighthouses and beacons

2018-01-18 Thread Steve Doerr
On 19/01/2018 02:16, Andrew Davidson wrote: On 19/01/18 00:52, Janko Mihelić wrote: Ok, the discussion at least came to an agreement that this: https://imgur.com/a/U8SXn is not a man_made=lighthouse. Don't be too sure about that. I thought that we could all agree that a lighthouse had

Re: [Tagging] Difference between lighthouses and beacons

2018-01-18 Thread Andrew Davidson
On 19/01/18 00:52, Janko Mihelić wrote: Ok, the discussion at least came to an agreement that this: https://imgur.com/a/U8SXn is not a man_made=lighthouse. Don't be too sure about that. I thought that we could all agree that a lighthouse had some thing to do with light and houses, but it

Re: [Tagging] Difference between lighthouses and beacons

2018-01-18 Thread Malcolm Herring
On 18/01/2018 15:27, Janko Mihelić wrote: I'm in the process of making a new icon, and I can make a pull request on the openstreetmap-carto soon. That is good - maybe it will prevent mappers using "lighthouse" just so that a symbol is placed on the map. I have added some more examples of

Re: [Tagging] Difference between lighthouses and beacons

2018-01-18 Thread Janko Mihelić
čet, 18. sij 2018. u 15:27 Malcolm Herring napisao je: > man_made=beacon *is* the appropriate tag for such structures. Tags in > the "seamark" namespace relate only to the *navigational function* of an > object, not the physical form. Many beacon objects have no

Re: [Tagging] Difference between lighthouses and beacons

2018-01-18 Thread Malcolm Herring
On 18/01/2018 13:52, Janko Mihelić wrote: I looked at man_made=beacon. Taginfo says we have about 7 000 of those, and the wiki shows something that resembles what we are talking about, but not quite: man_made=beacon *is* the appropriate tag for such structures. Tags in the "seamark"

Re: [Tagging] Difference between lighthouses and beacons

2018-01-18 Thread Janko Mihelić
Ok, the discussion at least came to an agreement that this: https://imgur.com/a/U8SXn is not a man_made=lighthouse. We have A LOT of those mapped as lighthouses (I think the majority of that tag is on the wrong element). One reason is rendering, and we have to start rendering something. The

Re: [Tagging] Difference between lighthouses and beacons

2018-01-17 Thread Martin Koppenhoefer
2018-01-16 12:36 GMT+01:00 Malcolm Herring : > On 16/01/2018 10:25, Andrew Davidson wrote: > >> OK. So a lighthouse has to have a rotating light then? >> > > A lighthouse does not have any particular type of light, or any light at > all, but it will have a lamp

Re: [Tagging] Difference between lighthouses and beacons

2018-01-16 Thread Malcolm Herring
On 16/01/2018 10:25, Andrew Davidson wrote: OK. So a lighthouse has to have a rotating light then? A lighthouse does not have any particular type of light, or any light at all, but it will have a lamp room at the top ___ Tagging mailing list

Re: [Tagging] Difference between lighthouses and beacons

2018-01-16 Thread Andrew Davidson
On 16/01/18 21:17, Martin Koppenhoefer wrote: can't see a lighthouse in your link. It's the really big building with the beam of light coming out of it--you can't miss it This is a photo of the Rome lighthouse (it is also called "lighthouse", and has a rotating light):

Re: [Tagging] Difference between lighthouses and beacons

2018-01-16 Thread Martin Koppenhoefer
2018-01-16 11:04 GMT+01:00 Andrew Davidson : > > Oh my. Hope someone has mapped the lighthouse in Las Vegas ( > http://vegasvacationbids.com/luxorhotelatnight.jpg). can't see a lighthouse in your link. This is a photo of the Rome lighthouse (it is also called "lighthouse",

Re: [Tagging] Difference between lighthouses and beacons

2018-01-16 Thread Andrew Davidson
On 16/01/18 20:32, Martin Koppenhoefer wrote: sure, for example here's a "famous" lighthouse in Rome, far from the sea: https://www.openstreetmap.org/node/249332339 Oh my. Hope someone has mapped the lighthouse in Las Vegas (http://vegasvacationbids.com/luxorhotelatnight.jpg).

Re: [Tagging] Difference between lighthouses and beacons

2018-01-16 Thread Andrew Davidson
On 16/01/18 19:34, Malcolm Herring wrote: The main point that I was trying to make is that a simple pile or lattice tower with a light on top should not be tagged as man_made=lighthouse, but man_made=beacon. Not always. A lighthouse is a structure housing a major marine navigation light.

Re: [Tagging] Difference between lighthouses and beacons

2018-01-16 Thread Martin Koppenhoefer
2018-01-16 10:13 GMT+01:00 Malcolm Herring : > On 16/01/2018 08:43, Martin Koppenhoefer wrote: > >> probably with exceptions, e.g. this is a lighthouse from 1911 (i.e. >> historic) with a lattice structure, generally considered a lighthouse: >>

Re: [Tagging] Difference between lighthouses and beacons

2018-01-16 Thread Malcolm Herring
On 16/01/2018 08:43, Martin Koppenhoefer wrote: probably with exceptions, e.g. this is a lighthouse from 1911 (i.e. historic) with a lattice structure, generally considered a lighthouse: https://en.wikipedia.org/wiki/Adziogol_Lighthouse I can see a house! To be clear, the OP asked what the

Re: [Tagging] Difference between lighthouses and beacons

2018-01-16 Thread Martin Koppenhoefer
2018-01-16 9:34 GMT+01:00 Malcolm Herring : > On 16/01/2018 00:21, Graeme Fitzpatrick wrote: > >> In what way would you consider that these are not lighthouse's? Just >> because they don't have accommodation? >> > > Point taken. I was referring to the historical

Re: [Tagging] Difference between lighthouses and beacons

2018-01-16 Thread Malcolm Herring
On 16/01/2018 00:21, Graeme Fitzpatrick wrote: In what way would you consider that these are not lighthouse's? Just because they don't have accommodation? Point taken. I was referring to the historical structures rather than any modern replacements. The main point that I was trying to make

Re: [Tagging] Difference between lighthouses and beacons

2018-01-15 Thread Graeme Fitzpatrick
On 16 January 2018 at 02:58, Malcolm Herring wrote: > > > A lighthouse (man_made=lighthouse) is a tower with living quarters either > within the tower, or a separate structure at or adjacent to the base. They > are topped with a lamp room. The lamp may or may not

Re: [Tagging] Difference between lighthouses and beacons

2018-01-15 Thread Mateusz Konieczny
On Mon, 15 Jan 2018 16:58:49 + Malcolm Herring wrote: > A lighthouse (man_made=lighthouse) is a tower with living quarters > either within the tower, or a separate structure at or adjacent to > the base. Probably usually it is true but I would not consider

Re: [Tagging] Difference between lighthouses and beacons

2018-01-15 Thread Malcolm Herring
On 15/01/2018 14:29, Martin Koppenhoefer wrote: can you please explain how to distinguish a beacon from a light house? Historical beacons (for which the tag man_made=beacon is appropriate) are structures that were for generic signalling purposes, not necessarily maritime navigation. They can

Re: [Tagging] Difference between lighthouses and beacons

2018-01-15 Thread Martin Koppenhoefer
2018-01-14 14:47 GMT+01:00 Janko Mihelić : > A map with lighthouses was produced [1] that gained popularity because it > was nicely rendered, but it showed how flawed OSM data was in this regard. > Very often little beacons [2] are mapped as man_made=lighthouse, which is > not

Re: [Tagging] Difference between lighthouses and beacons

2018-01-14 Thread Malcolm Herring
On 14/01/2018 13:47, Janko Mihelić wrote: So a fuzzy rule can be created, you can't have a man_made=lighthouse tag and seamark:xxx=yyy tags on the same object. That's instantly an error. Seamark tags are used for instruments that help navigation, and lighthouses are structures that can house

Re: [Tagging] Difference between lighthouses and beacons

2018-01-14 Thread marc marc
Le 14. 01. 18 à 14:47, Janko Mihelić a écrit : > a lighthouse can be an area with a seamark node at the place where > the light is. theoretically the difference seems correct to me. but if someone just wants to map a lighthouse, he'll do it with a simple node. you cannot require that anyone who