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Editorial Team
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Asked: 2026-05-31T04:50:45+00:00

I am working on a project where it is necessary to display maps of

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I am working on a project where it is necessary to display maps of countries and cities using d3.js.

Actually, D3 supports GeoJson format. Usually, I guess, GeoJson format is converted from some other format.

I found some places with this GeoJson data:

http://mbostock.github.com/protovis/ex/countries.js

But, this is only a list of countries, I am looking for some service or program that gives me the ability to set an ID, get this format, and convert it to GeoJson, or get it in GeoJson better.

Thanks!!

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1 Answer

  1. Editorial Team

    Does this need to be a service? Here’s how I’ve approached this in the past, using free/Open Source tools:

    Now you have hi-res GeoJSON data.

    This is a really big file, though, so you’ll want to split it up. But you don’t need a service for this, just static files for each country, named by ID. This would be easy enough to produce with a script in your utility of choice (Python, Ruby, node.js).

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