Technical Question

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Paul McKeown
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Technical Question

Postby Paul McKeown » Sun May 20, 2012 6:01 pm

Can anyone point me to a set of co-ordinates for national boundaries, please.

I don't need a highly detailed set for high resolution mapping, I don't need the hassle of delving into shapefiles or the like, just something low resolution say suitable for displaying a map of the world at 1024 x 768. I don't need administrative boundaries within national borders, or any other detail at all. Just a list of co-ordinates, hopefully less than 100 kB in length, representing all the countries of the world, up to date, all the UN countries including South Sudan, all the standard non UN countries such as Taiwan, Western Sahara, West Bank and Gaza, etc., all the recognised self-governing dependencies, such as Falkland Islands, French Guiana, etc. And a key, so I know which set of co-ords correspond to which region.

I have been breaking my head for days on this one, can't believe that it should be impossible short of a doctorate in geographical information systems.

Help! Please! :D

John McKenna
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Re: Technical Question

Postby John McKenna » Sun May 20, 2012 9:30 pm

Probably not the answer you require, Paul, but the Royal Geographical Soc. could probably point you in the right direction but may require membership.
The US magazine National Geographic may also be a place to visit they have a map-based World Heritage Project in conjunction with UNESCO that also has a set of tool for interactive map making. Good luck.
To find a for(u)m that accommodates the mess, that is the task of the artist now. (Samuel Beckett)

HLang
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Re: Technical Question

Postby HLang » Mon May 21, 2012 7:00 pm

Does this do what you're looking for:

http://www.evl.uic.edu/pape/data/WDB/

(Filesize is a lot larger than you wanted, but then there's a lot of detail...)

Edit: More options here: http://www.earthmodels.org/data-and-tools/coastlines

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Christopher Kreuzer
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Re: Technical Question

Postby Christopher Kreuzer » Mon May 21, 2012 7:33 pm

HLang wrote:Does this do what you're looking for:

http://www.evl.uic.edu/pape/data/WDB/

(Filesize is a lot larger than you wanted, but then there's a lot of detail...)


And on that site, this page has images that could be of use:

http://www.evl.uic.edu/pape/data/Earth/

Scroll down to see the 'borders' and 'coastlines' images.

Simon Ansell
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Re: Technical Question

Postby Simon Ansell » Mon May 21, 2012 9:04 pm

Google Fusion Tables almost certainly has the data you're looking for - a quick search for "country borders" returns a few results that can be downloaded in KML, though I can't vouch for source/accuracy of the data.

I would have thought it was possible to do this via Google Earth, but I just spent 5 minutes messing around and couldn't figure out how to do it - if there is a Google Earth API and you have any programming knowledge it would probably be fairly simple, I would guess.

John McKenna
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Re: Technical Question

Postby John McKenna » Mon May 21, 2012 11:42 pm

Also worth a visit -
http://www.thematicmapping.org
on the menu: World Borders Dataset and there are mapping tools.
The site is run by a dedicated Norwegian (not Slartibartfast).
To find a for(u)m that accommodates the mess, that is the task of the artist now. (Samuel Beckett)

Paul McKeown
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Re: Technical Question

Postby Paul McKeown » Tue May 22, 2012 8:39 am

Thanks for the suggestions, folks. Will reply in detail later.


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