Data extraction from BHUVAN website

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rituparn...@gmail.com

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Jun 29, 2021, 10:34:54 PMJun 29
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Is it possible to extract the Lat long data of the Kolkata city Parks from this BHUVAN webpage? 

https://bhuvan-app1.nrsc.gov.in/parks/rc_bhuvan.php#

Puneeth Chaganti

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Jul 2, 2021, 12:16:11 AMJul 2
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Hi,
Yes, it is possible to extract the data. I tried to scrape the data
using curl and some simple bash + jq.

https://gist.github.com/punchagan/4d4c326f8c70850e1ac2914d7610f0c3

I started with crawling the data by ward, but I found some things about
how that data was organized, a little confusing.

So, I ended up fetching the data for each park, instead. I clubbed the
separate json files into a single file. The wards based crawl had some
additional information that may be useful, like the total population of
the ward.

- P

Anil Dandekar

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Jul 2, 2021, 12:29:18 AMJul 2
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the file in gist.github.com is some kind of coding, i am unable to understand how to use it, could someone tell us how that can be used to extract the data?.from Bhuvan
thanking you
Dr. Anilkumar T Dandekar
Associate Professor of Agricultural Engineering
in Soil and Water Conservation Engineering
Dept Of Agricultural Engineering,
College of Agriculture,
VC Farm, Mandya-571405


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Dilawar Singh

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Jul 2, 2021, 1:47:23 AMJul 2
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Attached is a csv file which you can open in Office application or google-sheets.


-- Dilawar
kolkata_parks.csv

Thejesh GN

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Jul 4, 2021, 1:21:59 PMJul 4
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Puneeth thanks for the script. What one can achieve with cli (specially curl and jq) always surprises me.

Is the ward geography that you got is very different from the one we have here?


Thej
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NARESH AADHI

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Jul 4, 2021, 1:25:09 PMJul 4
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Hi,

Dear All,

Does anyone have same information for Hyderabad..Please let me know..

With Regards
Aadhi 
Osmania University 

Puneeth Chaganti

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Jul 5, 2021, 1:40:53 AMJul 5
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Hi Thej,

On 04/07/21 10:51 pm, Thejesh GN wrote:
> Puneeth thanks for the script. What one can achieve with cli (specially
> curl and jq) always surprises me.

Yes, lately I've been using jq + curl a lot more than Python, which was
my default choice before. :)

> Is the ward geography that you got is very different from the one we
> have here?
> https://github.com/datameet/Municipal_Spatial_Data/tree/master/Kolkata
> <https://github.com/datameet/Municipal_Spatial_Data/tree/master/Kolkata>

The data gives bounding boxes for the wards, from what I understand. I
didn't try to visualize it, but the data has 141 wards - same as the
geojson linked here.

I pushed the ward json data also to the gist, in case you want to take a
look: https://gist.github.com/4d4c326f8c70850e1ac2914d7610f0c3

- Puneeth

rituparna das

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Jul 7, 2021, 11:58:48 PMJul 7
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Thank you so much Sir for helping me out.

Dilawar Singh

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Aug 25, 2021, 3:08:04 AMAug 25
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An Introduction to JQ: https://earthly.dev/blog/jq-select/  (worth bookmarking).

-- Dilawar
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