Re: [Tagging] Groups of islands, how to tag?
On 19. November 2010 13:40 Andrew Errington [a.erring...@lancaster.ac.uk] wrote: I wish to tag an island with its name. Except that the name refers to a group of islands, and each of these islands have their own name. http://www.openstreetmap.org/?lat=37.24164lon=131.86871zoom=16layers=M The name is Dokdo (-do is Korean for 'island'), but this is the name of the group of islands (two main ones and some smaller named rocks around them). There is no single island called Dokdo. The two main islands in the group are Seodo (Seo is 'West') and Dongdo (Dong is 'East'). So I suppose there are two questions: 1) What is the correct way to tag a group of islands with their well-known name when the names of the individual islands are not well-known or commonly used and are different to the name of the group? 2) If the answer is 'use a relation', have I done it properly, and if so, why isn't Mapnik rendering the name properly? 1) Imho it's mapped correctly using a multipolygon relation. 2) If and how a feature is rendered is up to the renderer. The mapper can't and imho shouldn't try to control this. Two examples: http://www.openstreetmap.org/browse/relation/963669 http://www.openstreetmap.org/browse/relation/963209 Happy mapping Willi ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Groups of islands, how to tag?
On Fri, Nov 19, 2010 at 10:08 AM, Willi wil...@gmx.de wrote: 2) If the answer is 'use a relation', have I done it properly, and if so, why isn't Mapnik rendering the name properly? 2) If and how a feature is rendered is up to the renderer. The mapper can't and imho shouldn't try to control this. Two examples: http://www.openstreetmap.org/browse/relation/963669 http://www.openstreetmap.org/browse/relation/963209 Since it's obviously not rendered in any renderer., the question is how to make this renderable, not how to write the relation in a nice way.. This problem exist all over and a fix is badly needed, e.g. 1. buildings/entrances 2. islands 3. metro stations/entrances 4. water areas -- /emj ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Groups of islands, how to tag?
Erik Johansson schrieb: On Fri, Nov 19, 2010 at 10:08 AM, Willi wil...@gmx.de wrote: 2) If the answer is 'use a relation', have I done it properly, and if so, why isn't Mapnik rendering the name properly? 2) If and how a feature is rendered is up to the renderer. The mapper can't and imho shouldn't try to control this. Since it's obviously not rendered in any renderer., the question is how to make this renderable, not how to write the relation in a nice way.. This problem exist all over and a fix is badly needed, e.g. 1. buildings/entrances 2. islands 3. metro stations/entrances 4. water areas Well at least 1 and 3 (site relation with apropriate roles) as well as 2 (multipolygon archipelago) _are_ yet renderable - it just has to be done - by the renderer. As said above. So the answer could only be: ticket / patch for mapnik, osmarender, Georg ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Groups of islands, how to tag?
2010/11/19 Nathan Edgars II nerou...@gmail.com: Probably use a multipolygon with place=island. -1. I agree for the multipolygon but I wouldn't put place=island, because IMHO that would mean that there is one island where in this example in the real world there are actually two. I would simply put the name in the relation and the islands as role outer. Then the single islands would have the place=island and their name. Cheers, Martin ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Groups of islands, how to tag?
2010/11/19 Richard Mann richard.mann.westoxf...@gmail.com: place=island is used to identify noteworthy places that are isolated enough to justify a label at a low zoom. ...So it would be wrong to apply it to a single island in a group... I don't know where you get this impression from (especially that place=island is used for more then one island), it can't be from the wiki: An island is any piece of land that is completely surrounded by water and isolated from other significant landmasses. cheers, Martin ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Groups of islands, how to tag?
2010/11/19 Nathan Edgars II nerou...@gmail.com: That definition is correct - for single islands. piece should probably be changed to piece (or group of pieces) to make it work for archipelagos, and fit with the general intention of the key (to determine what priority should be given to labels) It's not exactly unheard of to extend the class island this way; for instance search http://geonames.usgs.gov/domestic/ for name islands and feature class island. I wouldn't do it like this, even if the USGS does it like this. I would use island for a single island and something else for a group of islands. I wouldn't use islands either, because that is too close. Archipelago sounds OK. I wouldn't even require a place tag. A name on the multipolygon could be sufficient (as suggested in my first post). cheers, Martin ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Groups of islands, how to tag?
Probably use a multipolygon with place=island. For example, if I were mapping a swamp with a single name but multiple pieces, I'd use a multipolygon for the whole thing. If a sub-area of that swamp had a name (like a bay in a lake) it would be in addition to the swamp name. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Groups of islands, how to tag?
On Fri, November 19, 2010 16:02, Nathan Edgars II wrote: Probably use a multipolygon with place=island. For example, if I were mapping a swamp with a single name but multiple pieces, I'd use a multipolygon for the whole thing. If a sub-area of that swamp had a name (like a bay in a lake) it would be in addition to the swamp name. I thought I'd done that. Could you (or someone) please look at the data in an editor? Thanks, Andrew ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Groups of islands, how to tag?
The problem with that is that a multipolygon relation is for a single entity that may be broken down into several pieces. A group of islands (or an archipelago) is not a single island broken down into several land pieces. It is just that: a group of islands. So we need a different way of tagging a collection separate from tagging unconnected parts of a whole. On Fri, Nov 19, 2010 at 3:02 PM, Nathan Edgars II nerou...@gmail.com wrote: Probably use a multipolygon with place=island. For example, if I were mapping a swamp with a single name but multiple pieces, I'd use a multipolygon for the whole thing. If a sub-area of that swamp had a name (like a bay in a lake) it would be in addition to the swamp name. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
Re: [Tagging] Groups of islands, how to tag?
What about place=archipelago (or place=islands) used with either the multipolygon or the http://wiki.openstreetmap.org/wiki/Relations/Proposed/Collected_Ways_Simple On Fri, Nov 19, 2010 at 6:23 PM, Eugene Alvin Villar sea...@gmail.com wrote: The problem with that is that a multipolygon relation is for a single entity that may be broken down into several pieces. A group of islands (or an archipelago) is not a single island broken down into several land pieces. It is just that: a group of islands. So we need a different way of tagging a collection separate from tagging unconnected parts of a whole. On Fri, Nov 19, 2010 at 3:02 PM, Nathan Edgars II nerou...@gmail.com wrote: Probably use a multipolygon with place=island. For example, if I were mapping a swamp with a single name but multiple pieces, I'd use a multipolygon for the whole thing. If a sub-area of that swamp had a name (like a bay in a lake) it would be in addition to the swamp name. ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging ___ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
