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[mkgmap-dev] Has anyone added a USA TIMEZONE overlay ontop of their custom maps?

From greg crago gregcrago at gmail.com on Wed Jun 8 02:36:37 BST 2016

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.


On Tue, Jun 7, 2016 at 5:27 AM, Marko Mäkelä <marko.makela at 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
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