Re: [datameet] Reverse Geocoding

[Shivangi Desai]

Thank you all for the information and suggestions. Will look into it and
try figuring it out.
I will need reverse geocoding for the whole of India and might need to call
the API atleast 100 times a day!

Thanks,
Shivangi


On Wed, Oct 5, 2022 at 3:24 PM sreeram kandimalla <
kandimalla.sree...@gmail.com> wrote:

> Cloudflare R2 is also an option for storage.. zero egress charges.. and
> yes bulk processing can always be dockerized by the pulling the data and
> running the code locally.
>
> On Wed, 5 Oct, 2022, 3:04 pm sreeram kandimalla, <
> kandimalla.sree...@gmail.com> wrote:
>
>> I think this can be run out of a flatgeobuf file hosted on GitHub
>> releases and fly.io free tier container for api.. or the processing can
>> be moved to the client side as a library.
>>
>> On Wed, 5 Oct, 2022, 8:31 am Nikhil VJ,  wrote:
>>
>>> Hi,
>>>
>>> In my Pmgsy habitations project i had implemented this in an api call,
>>> for the block boundaries data got from pmgsy. Openapi link:
>>>
>>>
>>> https://server.nikhilvj.co.in/pmgsy/docs#/geospatial/blockFromMap_API_blockFromMap__lat___lon__get
>>>
>>> Of course, the boundaries shared by Pmgsy aren't to be taken as official
>>> admin boundaries as told by themselves, so pls don't.
>>>
>>> I'm on course to add in more datasets and expand this api, esp recent
>>> SOI village boundaries and toponyms data.
>>>
>>> We could make a centralised server, but then limitations kick in like
>>> rate limiting that will make it useless for folks who want to do bulk
>>> operations.
>>>
>>> Scaling up can only happen if users are willing to pay, but that makes
>>> it another paid service, and the output quality won't be refined enough to
>>> justify.
>>>
>>> For the folks needing bulk ops, how about we make a dockerised
>>> recipe-program that people can start up on their systems?
>>>
>>> -Nikhil
>>> https://nikhilvj.co.in
>>>
>>>
>>> On Tue, Oct 4, 2022, 21:18 Arun Ganesh  wrote:
>>>
 One quick option using a hosted service is the Mapbox tilequery API
 https://docs.mapbox.com/playground/tilequery/ which offers 100k free
 requests per month. Once you upload the data, you can use the tilequery
 endpoint as an API to request details of the vector feature at any
 coordinate.

 On Tue, Oct 4, 2022 at 5:55 AM sreeram kandimalla <
 kandimalla.sree...@gmail.com> wrote:

> This exists from bhuvan at https://bhuvan-app1.nrsc.gov.in/api/ . Was
> mentioned in a recent OSM telegram conversation. Only works for Andhra
> Pradesh and Karnataka right now.
>
> On Tue, 4 Oct, 2022, 1:22 pm Deepak Sharda, 
> wrote:
>
>> You can directly get it working from a postgres table. Use pincode
>> layer available with datameet GitHub and run a query point in polygon.
>>
>>
>> it will work
>>
>> So steps
>>
>> 1. get pincode layer
>> 2. update in any postgres install postgis
>> 3. run a query ST_intersects(polygon.geom ,
>> ST_SetSrid(ST_Make_point(long,lat),4326)
>>
>> 3. use any language python , javascript to make a connection
>>
>>
>>
>> On Tue, 4 Oct, 2022, 12:07 pm Dammalapati Sai Krishna, <
>> saikrishnadammalap...@gmail.com> wrote:
>>
>>> Hey Shivangi,
>>>
>>> I was thinking on creating an API for this. Let me know if you would
>>> be interested to work together on this! Or share if you get to know this
>>> service already exists :)
>>>
>>> Regards,
>>> Sai
>>>
>>> Sent from my iPhone
>>>
>>> On 04-Oct-2022, at 11:47 AM, Shivangi Desai <
>>> shivangi.de...@gmail.com> wrote:
>>>
>>> 
>>> Hey All,
>>>
>>> Wanted to check with you all what is the general consensus on doing
>>> Reverse Geocoding (for points in mostly rural parts of India)?
>>>
>>> Should we create a self hosted geo server (which exposes REST API)
>>> to do this? or
>>> Is it better to use any already available and reliable online REST
>>> API service?
>>>
>>> We would need boundary hierarchy to be returned, i.e. State,
>>> District, Block, Village/City etc.
>>>
>>> Any recommendations?
>>>
>>> Thanks & Regards,
>>> Shivangi
>>>
>>> --
>>> Datameet is a community of Data Science enthusiasts in India. Know
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>>> 
>>> .
>>>
>>> --
>>> 

Re: [datameet] Indian city boundaries

[Abhishek]

Hi Devdatta,

The platform is still work in progress. It was an initiative under the
smart cities fellowship programme led by me and two others. It is currently
backed by the National Institute of Urban Affairs. We are pitching it to be
a one stop shop for all urban datasets at NIUA. As NIUA has a huge corpus
of datasets (geospatial and others), we will be opening up more of these
datasets in the coming days.

*Reason for using CC0 1.0 in some of the datasets:*
Although all the datasets on the platform belong to one or the other urban
local bodies, the source for some of these datasets might not be a
government body. So the rule we have been following for attaching a license
is that all datasets procured from any govt body is licensed under Govt
Open Data License, datasets aggregated from open sources are given the same
license thats available at the source (mostly CC0 1.0) and non-govt.
sources without any license are left as "License not specified".

It's not a funded project (yet) and is built on an open source stack so
some links are broken. We were initially planning to create an open
licensing platform where cities can drag and drop pre-built clauses to
create custom data sharing licenses according to their needs. Most cities
are not comfortable releasing the data under the open data license and
hence we see poor quality datasets on most govt platforms. The
license.dataspace.mobi was supposed to redirect to that platform but it was
never built.

Not a legal expert so any feedback on licensing or the overall platform is
more than welcome.

Thank you
- Abhishek Upperwal

On Thu, 6 Oct 2022 at 12:06, Devdatta Tengshe  wrote:

> Wow! Thanks for the great source.
>
> There is a lot of interesting data here. Some of them have a CC0 license,
> and others don't have a license mentioned.
>
>
> Since this site is by the Govt of India, I am assuming that this would be
> under the Govt Open data license, but unfortunately, there is no way to
> check, since the link to the license page (
> https://licenses.dataspace.mobi/) is dead.
>
> Regards,
> Devdatta
>
>
> On Thu, 6 Oct 2022 at 10:56, Abhishek  wrote:
>
>> Hi Ravi,
>>
>> Ward boundaries for many cities are available here:
>> https://dataspace.mobi/dataset?q=ward
>>
>> Thank you
>> - Abhishek Upperwal
>>
>> On Mon, 3 Oct 2022 at 17:48, Ravi Chopra  wrote:
>>
>>> Hello All, I am looking for boundaries of Indian cities. Any help will
>>> be appreciated.
>>>
>>> Thanks
>>> Ravi
>>>
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>>> 
>>> .
>>>
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>> 
>> .
>>
> --
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> 
> .
>

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