time zones

Discussion of things we want in Geocart
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ltverweij
Posts: 9
Joined: Thu Apr 09, 2015 1:10 am

time zones

Post by ltverweij »

I would love to have the Timezones world wide. Is it available somewhere ??

Lucas
Atarimaster
Posts: 446
Joined: Fri Nov 07, 2014 2:43 am

Re: time zones

Post by Atarimaster »

Not that I know of.

You can download a timezone shapefile from
https://www.naturalearthdata.com/downlo ... timezones/
which can be added to a Geocart map. However, this just gives you the lines that indicate the timezones – no colored stripes.
If you’d prefer the latter, you can convert the shapefile mentioned above to a SVG vector file in which the timezones are polygons rather than just lines:
Visit http://mapshaper.org/, upload the zip file from naturalearthdata.com, and export as SVG.
Then, you can use any application that can process SVG files to colorize the polygons the way you like. Export the result as TIFF image. Import this image in Geocart as raster database and project it to your preferred projection.
If you want to overlay those colored stripes over another world map, generate this map as usual in Geocart, export both maps, use an image processor to overlay them and apply some opacity to the layer holding the timezones.

That’s the way I’d do it.
Maybe there’s an easier way, but as I’ve said, none that I know of.

Kind regards,
Tobias
ltverweij
Posts: 9
Joined: Thu Apr 09, 2015 1:10 am

Re: time zones

Post by ltverweij »

Thanks a 1000 times, Tobias. I hope the vectors will do the job. Great !!
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