[Talk-in] Indian state boundaries

Arun Ganesh arun.planemad at gmail.com
Wed Sep 14 06:54:21 BST 2011


On Wed, Sep 14, 2011 at 10:41 AM, Sajjad Anwar <me at sajjad.in> wrote:

> Hi everyone,
>
> We are just thinking of creating a choropleth map based on some education
> data in India. The state boundaries rendered out of mapnik doesn't look
> promising. What is the status of the state boundaries? Are they good and
> dependable?
>

The census shapefile import missed many multipolygon districts (disjointed
areas, mostly on the coast), so it does not look like you can create a
complete state boundary shape using the data in osm. You should instead try
the naturalearthdata [1] or the orginal ECI/Census shapefiles [2][3].

The accuracy of all the datasets looks questionable as the borders dont
exactly overlap. I have been hoping that better shapefiles would be released
from the census 2011 dataset, but there's no sign of it till now.

[1] http://www.naturalearthdata.com/downloads/10m-cultural-vectors/
[2] http://eci.gov.in/eci_main/GisLayers/gis_layers.asp
[3] http://geocommons.com/overlays/131045 (also looks like some districts
are missing)


>
> Cheers
> --
> Sajjad Anwar | W: http://sajjad.in | T: @geohacker
>
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>


-- 
j.mp/ArunGanesh <http://j.mp/ArunGanesh>
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