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Does India have a .geoJSON file? I want to make data visualization using d3.js for the states, cities and hence need the GEOJSON File representing India. Where should I start from or what should be my approach?
Also Mike's Tutorial doesn't help much for a Windows guy dealing with conversion of geographical data for the first time.
Please help.
Thanks,
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GeoJSON is an open standard geospatial data interchange format that represents simple geographic features and their nonspatial attributes. Based on JavaScript Object Notation (JSON), GeoJSON is a format for encoding a variety of geographic data structures.
Most readily available geoJSON data is for US states and country level boundaries, not regions within the country. This geoJSON will be used to create a geographic visualization using D3. js. www.boundaries-io.com for GeoJson boundaries.
Simply put, GeoJSON gives you an easy format for representing simple geographical features, along with their non-spatial attributes. As described in the RFC, JSON was designed to be a lightweight, text-based and language-independent data interchange format that is easy for both humans and machines to read and write.
http://download.geonames.org/export/dump/
here you can get all the countries geojson files..
check it out..
and there are lots of tutorials available to do the task you requested...
http://www.schneidy.com/Tutorials/MapsTutorial.html
http://techslides.com/d3-world-maps-tooltips-zooming-and-queue/
apart from these you need to search and find tutorial to learn much more concepts...
These two are the basic tutorials to start off with maps in d3.
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