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,
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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