Has anyone added a USA TIMEZONE overlay ontop of their custom maps?
Since I cannot seem to get this feature added to the OSM database (because it is not verifiable, or something) has anyone got this data from a different source and combined to maps together so I can tell when riding across the counrty thay I am crossing a timezone?? Greg
On Mon, Jun 06, 2016 at 01:09:34PM -0400, greg crago wrote:
Since I cannot seem to get this feature added to the OSM database (because it is not verifiable, or something) has anyone got this data from a different source and combined to maps together so I can tell when riding across the counrty thay I am crossing a timezone??
I would expect time zone to be an (explicit or implicit) attribute of a boundary=administrative relation. That is, the whole country or state (or province or city) would use the same time zone. If the above does not apply (for example, if some US state is being divided by a time zone boundary), then some overlay of an external data source would indeed seem to be needed. http://wiki.openstreetmap.org/wiki/Key:timezone seems to agree with my reasoning above. It also refers to a changeset that introduced time zones for the Australian states. However, all those modified objects have since then been removed, and the new Australian state relations do not seem to include timezone=*. http://taginfo.openstreetmap.org/keys/timezone lists a number of values starting with America/*. Maybe the US states are already tagged? There is also an algorithmic problem of extracting boundaries of tagged areas. Even if all the administrative areas are tagged with timezone=*, we would want to derive the boundaries, so that only those administrative boundaries that also represent a time zone boundary (with different values on each side) will be displayed. Best regards, Marko
On Tue, Jun 07, 2016 at 12:18:21PM +0300, Marko Mäkelä wrote:
http://wiki.openstreetmap.org/wiki/Key:timezone seems to agree with my reasoning above. It also refers to a changeset that introduced time zones for the Australian states. However, all those modified objects have since then been removed, and the new Australian state relations do not seem to include timezone=*.
Sorry, I was looking at a way, not at relations. At least http://www.openstreetmap.org/relation/2316595 (name=Queensland) is tagged with timezone=Australia/Brisbane.
There is also an algorithmic problem of extracting boundaries of tagged areas. Even if all the administrative areas are tagged with timezone=*, we would want to derive the boundaries, so that only those administrative boundaries that also represent a time zone boundary (with different values on each side) will be displayed.
Maybe the mkgmap bounds.zip could be extended with this information? Best regards, Marko
I do not know how to add adminstrative boundaries or relations, but it would be nice if these were added to the USA. INDIANA is divided between cities and county boarders. I was just hoping someone had done this and I would like to add this info to my maps. Greg On Tue, Jun 7, 2016 at 5:27 AM, Marko Mäkelä <marko.makela@iki.fi> wrote:
On Tue, Jun 07, 2016 at 12:18:21PM +0300, Marko Mäkelä wrote:
http://wiki.openstreetmap.org/wiki/Key:timezone seems to agree with my reasoning above. It also refers to a changeset that introduced time zones for the Australian states. However, all those modified objects have since then been removed, and the new Australian state relations do not seem to include timezone=*.
Sorry, I was looking at a way, not at relations. At least http://www.openstreetmap.org/relation/2316595 (name=Queensland) is tagged with timezone=Australia/Brisbane.
There is also an algorithmic problem of extracting boundaries of tagged
areas. Even if all the administrative areas are tagged with timezone=*, we would want to derive the boundaries, so that only those administrative boundaries that also represent a time zone boundary (with different values on each side) will be displayed.
Maybe the mkgmap bounds.zip could be extended with this information?
Best regards,
Marko _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
On Tue, Jun 07, 2016 at 09:36:37PM -0400, greg crago wrote:
I do not know how to add adminstrative boundaries or relations, but it would be nice if these were added to the USA. INDIANA is divided between cities and county boarders. I was just hoping someone had done this and I would like to add this info to my maps.
Indiana http://www.openstreetmap.org/relation/161816 does not have a timezone=* yet. Maybe someone who is familiar with JOSM and the timezones could do this? Because I do not live in the US, I am reluctant to change the data myself. But I guess I could do it if nobody else steps up, and if you can provide me with a comprehensive list of states (counties, cities) and timezones. You see, I would want this data to be present in OSM, to benefit also other users than those using mkgmap-generated maps. If we have the data in OSM and if mkgmap starts to interpret it, then you would get the timezone borders "out of the box". I do not think that timezone borders would add any significant clutter to the map, so IMO they should be included in the default style. Marko
According to wikipedia, timezone boundaries seems to be a rather complex subject in the USA, with some communities using an unofficial time as well as many variations of the application of Daylight Savings time... Indiana specifically is described in some detail on wikipedia [1]. I agree with Marko, it would be good to have this in OSM. One way of doing it would be that the whole state of Indiana gets a "default" timezone with exceptions on the level of individual counties, but this would require some processing for the use case of "give the current UTC offset for this location". I think having a separate system of boundary relations (type=boundary, boundary=timezone) would be easier to process. But there will be many, many more than just the well-known timezones Eastern/Central/Mountain/Pacific/Alaska/Hawaii... //colin [1] https://en.wikipedia.org/wiki/Time_in_the_United_States On 2016-06-08 11:38, Marko Mäkelä wrote:
On Tue, Jun 07, 2016 at 09:36:37PM -0400, greg crago wrote:
I do not know how to add adminstrative boundaries or relations, but it would be nice if these were added to the USA. INDIANA is divided between cities and county boarders. I was just hoping someone had done this and I would like to add this info to my maps.
Indiana http://www.openstreetmap.org/relation/161816 does not have a timezone=* yet. Maybe someone who is familiar with JOSM and the timezones could do this? Because I do not live in the US, I am reluctant to change the data myself. But I guess I could do it if nobody else steps up, and if you can provide me with a comprehensive list of states (counties, cities) and timezones.
You see, I would want this data to be present in OSM, to benefit also other users than those using mkgmap-generated maps. If we have the data in OSM and if mkgmap starts to interpret it, then you would get the timezone borders "out of the box". I do not think that timezone borders would add any significant clutter to the map, so IMO they should be included in the default style.
Marko _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
I found a shapefile of the timezones of the world: http://efele.net/maps/tz/world/ On 06/08/2016 03:17 AM, Colin Smale wrote:
According to wikipedia, timezone boundaries seems to be a rather complex subject in the USA, with some communities using an unofficial time as well as many variations of the application of Daylight Savings time... Indiana specifically is described in some detail on wikipedia [1].
I agree with Marko, it would be good to have this in OSM. One way of doing it would be that the whole state of Indiana gets a "default" timezone with exceptions on the level of individual counties, but this would require some processing for the use case of "give the current UTC offset for this location". I think having a separate system of boundary relations (type=boundary, boundary=timezone) would be easier to process. But there will be many, many more than just the well-known timezones Eastern/Central/Mountain/Pacific/Alaska/Hawaii...
//colin
[1] https://en.wikipedia.org/wiki/Time_in_the_United_States
On 2016-06-08 11:38, Marko Mäkelä wrote:
On Tue, Jun 07, 2016 at 09:36:37PM -0400, greg crago wrote:
I do not know how to add adminstrative boundaries or relations, but it would be nice if these were added to the USA. INDIANA is divided between cities and county boarders. I was just hoping someone had done this and I would like to add this info to my maps.
Indiana http://www.openstreetmap.org/relation/161816 does not have a timezone=* yet. Maybe someone who is familiar with JOSM and the timezones could do this? Because I do not live in the US, I am reluctant to change the data myself. But I guess I could do it if nobody else steps up, and if you can provide me with a comprehensive list of states (counties, cities) and timezones.
You see, I would want this data to be present in OSM, to benefit also other users than those using mkgmap-generated maps. If we have the data in OSM and if mkgmap starts to interpret it, then you would get the timezone borders "out of the box". I do not think that timezone borders would add any significant clutter to the map, so IMO they should be included in the default style.
Marko _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk <mailto:mkgmap-dev@lists.mkgmap.org.uk> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
_______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Great, how do I use a SHAPEFILE and assign it to a linetype 0x19 (a TIMEZONE linetype I have waiting) Greg On Wed, Jun 8, 2016 at 1:42 PM, Bill <bill-mkgmap@halibut.com> wrote:
I found a shapefile of the timezones of the world: http://efele.net/maps/tz/world/
On 06/08/2016 03:17 AM, Colin Smale wrote:
According to wikipedia, timezone boundaries seems to be a rather complex subject in the USA, with some communities using an unofficial time as well as many variations of the application of Daylight Savings time... Indiana specifically is described in some detail on wikipedia [1].
I agree with Marko, it would be good to have this in OSM. One way of doing it would be that the whole state of Indiana gets a "default" timezone with exceptions on the level of individual counties, but this would require some processing for the use case of "give the current UTC offset for this location". I think having a separate system of boundary relations (type=boundary, boundary=timezone) would be easier to process. But there will be many, many more than just the well-known timezones Eastern/Central/Mountain/Pacific/Alaska/Hawaii...
//colin
[1] https://en.wikipedia.org/wiki/Time_in_the_United_States
On 2016-06-08 11:38, Marko Mäkelä wrote:
On Tue, Jun 07, 2016 at 09:36:37PM -0400, greg crago wrote:
I do not know how to add adminstrative boundaries or relations, but it would be nice if these were added to the USA. INDIANA is divided between cities and county boarders. I was just hoping someone had done this and I would like to add this info to my maps.
Indiana http://www.openstreetmap.org/relation/161816 does not have a timezone=* yet. Maybe someone who is familiar with JOSM and the timezones could do this? Because I do not live in the US, I am reluctant to change the data myself. But I guess I could do it if nobody else steps up, and if you can provide me with a comprehensive list of states (counties, cities) and timezones.
You see, I would want this data to be present in OSM, to benefit also other users than those using mkgmap-generated maps. If we have the data in OSM and if mkgmap starts to interpret it, then you would get the timezone borders "out of the box". I do not think that timezone borders would add any significant clutter to the map, so IMO they should be included in the default style.
Marko _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk <mailto:mkgmap-dev@lists.mkgmap.org.uk> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
_______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
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You can import a shp file into JOSM. Edit those polygons by splitting them into lines (I suppose you dont need to see 0x19 lines along the coast line). Give those lines an appropriate tag (e.g. timezone=yes, name="GMT +2") Save it as osm file, DO NOT upload it to OSM! Run splitter/mkgmap on this osm file and make a transparent Garmin img; in your line style you have to add a line to display timezone=yes. ----- Oorspronkelijk bericht -----
Van: "greg crago" <gregcrago@gmail.com> Aan: "Development list for mkgmap" <mkgmap-dev@lists.mkgmap.org.uk> Verzonden: Donderdag 9 juni 2016 02:05:55 Onderwerp: Re: [mkgmap-dev] Has anyone added a USA TIMEZONE overlay ontop of their custom maps?
Great, how do I use a SHAPEFILE and assign it to a linetype 0x19 (a TIMEZONE linetype I have waiting)
Greg
On Wed, Jun 8, 2016 at 1:42 PM, Bill < bill-mkgmap@halibut.com > wrote:
I found a shapefile of the timezones of the world:
participants (5)
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Colin Smale -
greg crago -
Marko Mäkelä -
Minko