Re: [Talk-in] So much to do, have so much of time, but lack direction : please help

[Nikhil VJ]

Hi Mayurash, Shibu,

Have a look at :
https://tasks.teachosm.org/contribute?difficulty=ALL=india
This is the same kind of mapping task manager as HOTOSM, but less "hot" :P
Please be logged in with your OSM login to see the maps in the projects
properly.

I've created the "India.MH..." series for mapping rural roads. Beautiful
countryside, just connect the state highways main roads etc to villages and
hamlets. And if you come across a habitation that has no place marker, pls
add a village/hamlet pin (no need of name) to it - really helps in other
projects that look for such pins to guide mappers.

I've created some video walkthroughs of these tasks to understand what all
to do, see: https://www.youtube.com/watch?v=ZlHt4CSqbX4

PS: Want to add a task of your district / area for mapping rural roads? Let
me know.

--
Cheers,
Nikhil VJ
https://nikhilvj.co.in


On Wed, Dec 30, 2020 at 8:39 AM mayur...@kathe.in  wrote:

> Can't get on Telegram since I don't have a smartphone.
>
> On Monday, December 28, 2020 08:13 PM IST, Arun Ganesh <
> arun.plane...@gmail.com> wrote:
>
> > The OSM India and Kerala telegram groups are fairly active and can be a
> > useful place to check up with what others are upto for mapping ideas to
> > take up https://community.osm.be/resources/asia/india
> >
> >
> >
> > On Mon, Dec 28, 2020 at 6:37 AM Mateusz Konieczny via Talk-in <
> > talk-in@openstreetmap.org> wrote:
> >
> > > Do you have an Android smartphone and you are able to walk around?
> > >
> > > Then I recommend StreetComplete, it will generate list of things
> > > that can be surveyed and easily answered.
> > >
> > > See https://wiki.openstreetmap.org/wiki/StreetComplete
> > >
> https://play.google.com/store/apps/details?id=de.westnordost.streetcomplete
> > >
> > > In general - you may map anything that is missing:
> > > roads, rivers, streams, buildings, hiking trails, shops, artworks etc
> etc
> > >
> > > See also https://wiki.openstreetmap.org/wiki/Osmose
> > > and https://wiki.openstreetmap.org/wiki/JOSM/Validator
> > >
> > > Dec 28, 2020, 08:54 by shibu.naraya...@oracle.com:
> > >
> > > Hi all,
> > > I am assuming lot of others are also want to start contributing, but
> are
> > > afraid to ask or not able to start big.
> > > Could you please point out to a (non-urgent)task list which members are
> > > take up and work on their own speed/leisure.
> > >
> > > Shibu Narayanan
> > > Oracle Financial Services | Bangalore | India
> > > Mobile:0091-99800-64282
> > >
> > > -Original Message-
> > > From: mayur...@kathe.in 
> > > Sent: Monday, December 28, 2020 1:07 PM
> > > To: talk-in@openstreetmap.org
> > > Subject: [Talk-in] So much to do, have so much of time, but lack
> direction
> > > : please help
> > >
> > > I used to frequent this list while I was trying to map my native place,
> > > but that was way back, and since then I've been mostly embroiled in a
> lot
> > > of issues regarding disposing off that place and focusing on my
> commercial
> > > engagements and day-to-day activities.
> > > I'm now done with everything, including taking an almost month-long
> break,
> > > and would now like to contribute a whole lot of my time and energy
> towards
> > > furthering work on OSM, especially in Mumbai, India.
> > >
> > > Would someone please suggest work/issues to tackle or at least point
> me to
> > > a page that does?
> > > Would also be nice if I could be guided on the kind of equipment to
> > > purchase for any legwork as I currently only own a x64 laptop (running
> RHEL
> > > Workstation) and a feature phone.
> > >
> > > Thank you.
> > >
> > >
> > > ___
> > > Talk-in mailing list
> > > Talk-in@openstreetmap.org
> > >
> > >
> https://urldefense.com/v3/__https://lists.openstreetmap.org/listinfo/talk-in__;!!GqivPVa7Brio!JtqLJEY_v5KozaKW9lsbnks-WSdj2eEpjJY-fobmgcDpx09KEUcLrEoryuTpS5Ljxug$
> > >
> > > ___
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> > > Talk-in@openstreetmap.org
> > > https://lists.openstreetmap.org/listinfo/talk-in
> > >
> > >
> > > ___
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> > > https://lists.openstreetmap.org/listinfo/talk-in
> > >
>
>
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Re: [OSRM-talk] inject request to OSRM

[Nikhil VJ]

Hi Evangelos,

The actual OSRM is a backend api - you can see its docs here:
http://project-osrm.org/docs/v5.23.0/api/#

The frontend is a separate application made for demo purposes which uses
the same api.
Hit F12 to show browser console, go to Network > XHR. And then do some
routing on the map. You'll get to see the structure of the api calls and
work from there.

--
Cheers,
Nikhil VJ
https://nikhilvj.co.in


On Thu, Dec 10, 2020 at 4:27 PM evangelos spyrou 
wrote:

> Hi all,
>
> We are in the middle of a project where we have to manually inject a
> request to our local OSRM server. Essentially, we want to make a routing
> request via the terminal (using a python script for example) from a
> specific IP and update the frontend at that PC.
>
> The question is how to inject a request to the OSRM server (not from the
> frontend).
>
> Thanks in advance.
>
> Kind Regards
>
> Evangelos
>
>
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Re: [Talk-in] Need guidance in launching a HOT project in Bangalore for mapping the lakes

[Nikhil VJ]

Hi Nagesh,

Sorry for writing in late;
If you get your pdf/image maps geo-referenced on mapwarper.net or
elsewhere, here's a simple tool you can use to compare them with satellite
imagery etc, and also to compare them with each other:
https://answerquest.github.io/overlap-custom-side.html

Click at a spot of interest on the map to get exact lat-long-zoom coords
for your documentation.
The current view there shows two development plan maps of Bangalore that
had been geo-referenced and shared by some folks in datameet mailing list
some years back.

All the best with this project.

--
Cheers,
Nikhil VJ
https://nikhilvj.co.in


On Thu, Nov 19, 2020 at 6:35 PM Yogesh 
wrote:

> On 18/11/20 8:31 pm, Nagesh Aras wrote:
>
> We have multiple maps:
> 1. Old paper maps (British era)
> 2. Digitized maps
> 3. Google map
> 4. OpenStreet Map.
>
> One example is that of the Pattandur lake:
> https://drive.google.com/drive/folders/1sHPjk4NqVjB1Opr7Fv6Sj5AvQiCi9JHg?usp=sharing
>
> The problem is that none of these maps may match with the others.
> So how do we proceed, and eliminate differences/doubts?
>
> Out of copyright British era maps can be geo-referenced over a web map on
> Map Warper: https://mapwarper.net/
>
> This may not be very accurate but with enough reference points, it can be
> matched with others.
>
>
> From the looks of it, it looks like every pair of maps requires a separate
> HOT-style project.
> (Remote mappers compare the two maps and find differences.)
>
>
> As Arun suggested in his second part, existing lakes survey has to be done
> to collect as much data as possible on the ground via paper, gpx traces,
> and geotagged pictures of the lakes. All of this can help remote mappers to
> chip in for the mapping alongside satellite imagery via HOT tasking manager.
>
> To get started, I think we can put all of this together on an OSM wiki
> page. Each lake can have a sub-page with related links to out of copyright
> maps and collected survey data. Have created a wiki page with basic
> information that you shared on mailing list here -
> https://wiki.openstreetmap.org/wiki/Bangalore_lakes_mapping_project
>
> Please feel free to modify the title/content of the page as required.
>
> On Fri, Nov 13, 2020 at 1:01 AM Arun Ganesh 
> wrote:
>
>>
>>
>> On Thu, Nov 12, 2020 at 5:10 AM Nagesh Aras 
>> wrote:
>>
>>> Hi all,
>>>
>>> Several activist groups in Bangalore have come together with the aim of
>>> mapping the water system in the city, which includes the lakes, and
>>> drainage system. The aim is to digitize thold maps to know what was the
>>> original shape and size of the lakes, and then do the local surveys to find
>>> out how much of the lake territory is encroached.
>>>
>>> We would like to set up the online HOT map for this purpose.
>>>
>>> Can anyone guide us about the steps required for this project?
>>>
>>> Also, if there are any permissions to be taken, who should I contact?
>>>
>>> Thanks in advance!
>>> Nagesh
>>>
>>
>> This is great! Looks like there are two parts:
>> - Digitize old maps: this one is tricky because old maps have various
>> quality issues. Vectorizing them might be resource intensive and not too
>> useful. Can you share an example of these old maps?
>> - Survey existing lakes. This is where OSM can be helpful. To scope this
>> out better maybe we should start with one particular lake to test out what
>> is the best strategy of satellite image tracing and field survey that will
>> work for the accuracy needed.
>>
>> The OSM India telegram group is fairly active and can be helpful to
>> coordinate this in further detail: https://t.me/OSMIndia
>> ___
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>> https://lists.openstreetmap.org/listinfo/talk-in
>>
>
> ___
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>
>
> --
> Yogi
> Sent from an Electronic Device
>
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Re: [OSRM-talk] How to break a large geojson file into smaller geojsons

[Nikhil VJ]

Hi Chris,

Use the QGIS software, they have a way to break up shapefiles (goejson is a
shapefiles) based on an attribute.

Else you can always open the file in a text editor (get notepad++ or vscode
or sublimetext or so for advanced text editor) and break it up manually.

Regards
Nikhil


On Tue, Oct 20, 2020, 07:36 Chris Willer  wrote:

> Hi everyone,
>
> I'm trying to reduce a large geojson file into several smaller files for
> processing purposes.  I'm familiar with R, but am open to any suggestions
> on how to do such a task.
>
> Best,
> Chris
>
>
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[Talk-in] Fwd: Road routing using openstreetmap data with OSRM

[Nikhil VJ]

[Re-mailing without the screenshot to meet size restrictions]

Hi folks,

I'd like to share about OSRM - Open Source Routing Machine. It can work
with freely downloadable Openstreetmap data to give a self-hosted
road-routing solution that's a drop-in replacement for many google maps
services (not that one you want the most, but many ;) )

I see a lot of promise in this and similar tools to help businesses and
organisations involved in transport, logistics, GPS, delivery etc to save
expenses. There is a huge amount of money Indian companies are sending out
of the country for geo-services - I'd like to see some of that retained.

Decentralizing is a key enabler here: Bringing down the base area makes
your OSRM program fast and light. So, instead of trying to load the whole
planet's OSM data or all of India's, loading just your region lets you do
road routing fast and cheap.
There's some technical hurdles to cross in learning how to set up and use
OSRM. Towards that, with lots of help in dockerizing from Srihari Thalla,
I've started a project on github  :
https://osrm-decentralized.github.io/ with the
aim of making it easy for anyone to "roll their own" OSRM using some easy
docker recipes.

There's a live demo page here : https://osrm-decentralized.github.io/demo
If you have an OSRM instance serving an area, inviting to add your link to
this live demo.

For grabbing your state/UT's openstreetmap data, I've set up this resource
where you can get the latest data updated daily:
https://server.nikhilvj.co.in/dump/
(it's using older states shapes from a datameet repo, please share the new
JK / Ladakh UTs if you have)
If you want your specific region's osm pbf data to be daily updated and
available for download here, let me know and we might be able to work
something out.

Please share with people who might find this useful.
And (belated) Happy Independence Day :)

--
Cheers,
Nikhil VJ
https://nikhilvj.co.in
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[OSRM-talk] OSRM Decentralized

[Nikhil VJ]

Hi Folks,

Here are easy docker recipes for deploying your own OSRM instance for any
base area. And a live demo page where OSRM for different areas can be
brought together.

https://osrm-decentralized.github.io/


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Re: [OSRM-talk] take only distance from route

[Nikhil VJ]

Hi Luiz,

Pls provide the exact structure of the API call you are making. There may
be some problems in that. One commonly repeating mistake is that people put
latitude first while OSRM needs longitude first.

Documentation : http://project-osrm.org/docs/v5.5.1/api/

And you will get the distance as part of the whole json response. Then you
have to use your code to extract the distance from that json. If you don't
know how to work with json, just lookup online; it's very easy. You can
paste your response into a "json beautifier" like tool to see the structure
in more familiar ways.

--
Cheers,
Nikhil VJ
https://nikhilvj.co.in


On Fri, Jun 19, 2020 at 7:04 AM Luiz Claudio de Paula Costa <
luiz.netw...@gmail.com> wrote:

> Can any help me? I need take only distance from route, I am a newby and
> I'm not getting process the json return to extract the distance.
> thanks any help
> luiz from brasil
>
>
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Re: [OSRM-talk] OSRM Problems

[Nikhil VJ]

Note: The "hint" is not the path between the two points.

Try running their docker image - quick way to get started.

--
Cheers,
Nikhil VJ
https://nikhilvj.co.in


On Sat, Mar 21, 2020 at 6:52 PM Alex Farioletti  wrote:

> Here are a couple online polyline gui tools
>
> https://developers.google.com/maps/documentation/utilities/polylineutility
>
> https://www.keene.edu/campus/maps/tool/
>
> On Sat, Mar 21, 2020, 5:51 AM Mike Flannigan  wrote:
>
>>
>> Item #1.
>>
>> If I go here:
>> http://project-osrm.org/
>> and click on "View Demo", and put in 2 points
>> the route is not calculated and the GPX export
>> button is not active (it is grayed out).  This
>> used to work.  What happened?
>>
>>
>> Item #2.
>>
>> Using the old techniques I am able to
>> get this output from a browser:
>>
>>
>> routes
>> 0
>> legs
>> 0
>> summary ""
>> weight 52725.6
>> duration 52286.9
>> steps []
>> distance 1443457.1
>> weight_name "routability"
>> weight 52725.6
>> duration 52286.9
>> distance 1443457.1
>> waypoints
>> 0
>> hint
>> "HXjihCh44oQAagAAAMh8AAAfDwAAAKv8nkIyMrtGwmU1RQBqyHwAAB8PAACZRgAABOzM-QORxQLcIcz5WILFAlkCbxbnlcEk"
>> distance 3992.7959862545904
>> name "Old 16 Road"
>> location
>> 0 -104.010748
>> 1 46.502147
>> 1
>> hint
>> "pLGsgKixrIAtYwAAjqSVQl4wIEMAAC0AAABjAACZRgAAyMVa-rFxUQLExVr6sXFRAgAAPwvnlcEk"
>> distance 0.34712334988660304
>> name "Nieman Road"
>> location
>> 0 -94.714424
>> 1 38.891953
>> code "Ok"
>> I want to change the "hint" to lat/long pairs.
>> I hear this can be done with @mapbox/polyline.js.
>> But oddly I am having trouble installing that package.
>>
>> I am on Linux Ubuntu.
>>
>>
>> Mike
>>
>>
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>>
> Alex Farioletti
> 415.312.1674
> twinjet.co
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Re: [Talk-in] Virtual Mappy Hours - India

[Nikhil VJ]

I liked the chatroom. Seems to be this open source web conferencing
software: https://github.com/bigbluebutton/bigbluebutton

--
Cheers,
Nikhil VJ
https://nikhilvj.co.in


On Wed, Jan 29, 2020 at 9:15 AM Jinal Foflia  wrote:

> Hi Chetan,
>
> Yes, you can find more details here:
> https://wiki.openstreetmap.org/wiki/India/Virtual_Mappy_Hours
>
> Cheers,
> Jinal Foflia
> (sent from mobile, excuse typos)
>
> On Wed, 29 Jan 2020, 11:41 am Chetan H A,  wrote:
>
>> Hello all,
>>
>> Is this happening?
>>
>> Thanks,
>> Chetan
>>
>> On Mon, Jan 27, 2020 at 7:43 AM Jinal Foflia 
>> wrote:
>>
>>> Hello Naveen,
>>>
>>> This is amazing. Thank you for sharing this.
>>>
>>> Cheers,
>>> Jinal Foflia
>>>
>>> On Mon, 27 Jan 2020, 9:47 am Naveen Francis,  wrote:
>>>
>>>> Hello all,
>>>>
>>>> OSM Foundation Chair @allan_mustard will be talking to OSM India
>>>> community.
>>>> Kicking off OSM India Virtual Mappy Hour on Jan 29th, 2020 - 9-10pm IST.
>>>> Please Join.
>>>> https://wiki.openstreetmap.org/wiki/India/Virtual_Mappy_Hours
>>>>
>>>> Thanks
>>>> naveenpf
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Re: [OSRM-talk] routing without a path

[Nikhil VJ]

Hi Peter,

At small distances we also experience unsuitably long paths drawn due to
various map artefacts that don't represent the on-ground situation fully.
Example: people can cross the road, they don't need to go that far for the
crossing (side question: is there an OSM tag for telling that this road has
"free crossing" all along it and people do not need to go to a specific
point just to cross?). Or, take the nearest entrance to the building - they
don't need to go all around the place from the outside.

We decided to do some post-processing instead of trying to mess with the
router.
Calculate D = Displacement by latitude-longitude pairs (as-the-crow-flies
simple Euclidean geometry calculation)

If D <= 500m, {
If the path given by OSRM is greater than D x 10 (or pick a suitable
multiplier), {
Then junk the path and just plot a dotted line from A to B. Assume
half speed for this portion.
  }
}

In your case you may have to divide the path you have into chunks and
evaluate each chunk.
But I have no clue on how to make this business accurate. All the best!

--
Cheers,
Nikhil VJ
https://nikhilvj.co.in


On Thu, Nov 28, 2019 at 7:09 PM Peter Schneider-Kamp via OSRM-talk <
osrm-talk@openstreetmap.org> wrote:

> Hi everyone,
>
>
>
> We are starting to use OSRM in a research project for autonomous drones.
> The drones should normally fly along existing paths (i.e. ways from
> OpenStreetMap). But there are situations where the drone needs to fly
> without a path between two nodes (as it otherwise would have to make a
> detour of many kilometres).
>
>
>
> We have a custom profile that works well for routing along the kind of
> paths we want to route along. But is there any way that we can tell OSRM to
> just go from one node to another close-by node without a path?
>
>
>
> So far the only idea is a bit of a hack: add a new type of path between
> all close-by nodes and add this type of path to the profile (with a lower
> speed, enabling its use but discouraging it).
>
>
>
> Any other ideas?
>
>
>
> Any inputs/ideas/pointers are appreciated!
>
>
>
> Cheers,
>
> Peter
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Re: [OSRM-talk] Reasonable use of public server

[Nikhil VJ]

Hi Taylor,

I can set you up with your own OSRM deployment on cloud server or your
local machine, or can set you up to use my cloud server.
It would take a few days to process all the trips.

There are some strategies like cutting down region size that we could use
to optimize. Contact privately to get in touch.

Regards
Nikhil VJ
https://nikhilvj.co.in

On Mon, Nov 4, 2019, 08:29 Daniel Patterson via OSRM-talk <
osrm-talk@openstreetmap.org> wrote:

> The public server is rate limited to 5000 requests/minute.  If you flood
> it with requests, likely many of yours won't work, and you'll block other
> people from using it.
>
> For this volume of work, you should investigate running a local server.
> We provide Docker images to run OSRM locally - these should be usable on
> Windows (although I have not personally tested it).
>
> daniel
>
> On Sun, Nov 3, 2019 at 6:19 PM Taylor Moseley 
> wrote:
>
>> HI My name is Taylor, and I'm exploring orsmr. I was wondering how many
>> viaroute requests would be considered too many, as I have quite a lot of
>> data to process, on the order of 15-17 million trips. Not all at once,
>> maybe a million at a time. I imagine that's too much for the public server,
>> but my options as far as non-windows machines are likely to be very limited
>> as I work for the state on a small grant.
>> I may be able to cut this down my limiting the maximum distance via
>> geosphere or other packages
>>
>> A windows backend would be ideal but that's apparently not supported
>> anymore.
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Re: [OSRM-talk] Exclude bridge from OSRM calculation

[Nikhil VJ]

Hi Andres,

Instead of trying to actually remove the bridge data, why not instruct
(your own instance of) OSRM to avoid bridges when reading the OSM data?

Take a look at
https://github.com/Project-OSRM/osrm-backend/blob/master/profiles/foot.lua

I don't know right now about bridges, but I was able to enable pedestrian
routing over trunk roads by tinkering around in this file and then building
and running OSRM.

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Nikhil VJ
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On Tue, Oct 29, 2019 at 4:03 PM ANDRES ABARCA 
wrote:

> Thank you for your response!
>
> I'm still inclining to use OSRM directly. Do you know if it would be
> possible to exclude bridges from the analysis if I use one of the
> Docker images?
>
> Also, in general, how would I proceed about removing a bridge? Should I
> (temporarily) remove it from the road data? Or could I query it out?
>
> Thanks for the help!!
>
> Best regards,
>
> Andres
>
> Il giorno ven 25 ott 2019 alle ore 14:16 Steven M. Ottens <
> ste...@minst.net> ha scritto:
>
>> Hi Andres,
>>
>> The public web service doesn't allow for exclusion of roads/bridges. If
>> you setup your own copy of OSRM you obviously do have the freedom to
>> exclude anything.
>>
>> Alternatively you could look into Rural Accessibility Map. An application
>> on top of OSRM developed for the Worldbank which is used to calculate the
>> impact of road improvements on the accessibility of a region. You can use
>> it to other way around as well: Calculate the impact of a bridge collapse.
>>
>> http://rah.surge.sh/about+
>>
>> https://github.com/WorldBank-Transport/ram-backend
>>
>> Cheers
>>
>> Steven
>> On 25-10-2019 12:31, ANDRES ABARCA wrote:
>>
>> Hi! I'm a PhD student at IUSS Pavia doing research on the impact of
>> bridge collapse.
>>
>> I want to use the OSRM public web server to calculate a duration matrix
>> using the Table Service. How can I exclude a specific bridge (or several)
>> from the query?
>>
>> We use OSM information, so we do have the OSM id numbers for the bridges
>> we would be excluding.
>>
>> Thanks for any assistance you can provide.
>>
>> Best regards,
>>
>> Andres Abarca
>> PhD Student
>> IUSS Pavia
>>
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[OSRM-talk] Pedestrian Routing giving longer results due to gap calculation

[Nikhil VJ]

Hello,


I am implementing osrm-backend for pedestrian (foot) routing. I have
successfully built with foot.lua profile (modified to include trunk roads
<https://gis.stackexchange.com/questions/334189/osrm-foot-walking-profile-avoiding-trunk-roads/334190#334190>)


..and am having a working osrm-frontend instance up to get results for
various inputs.


I'm running into a problem regarding buildings / premises.

In osrm-frontend, if the destination point is not on a known path, then
there is a translucent gap line drawn between the end of the blue route
line and the marked destination location.

I'd like to know if there is a technical term for this gap, and where in
the osrm code / config can we tinker with it.


*Example scenario:*

Destination location is inside a building / premises.

*Result 1:* Road distance = 300m, gap = about 20m


If I move the destination marker by just a few meters in, then osrm is
drawing a completely different route going all the way around. Now the
result given is:

*Result 2:* Road distance = 1000m, gap = about 10m


Please see this screenshot with both the results shown:
http://nikhilvj.co.in/files/osm/osrm-pedestrian-gap-1.png




So here we have a problem.

I have weighted my .lua profile by distance.

(changed `weight_name='duration'` to `weight_name='distance'` in foot.lua)

Giving result with minimum on-road walking distance is top priority for my
use case - entering in at the right point in the premises is not.

I would rather have the pedestrian walk a few extra meters inside the
premises, than having them walk an extra 700m of road (more than double the
actual).


It would have also been fine if the alternative paths (light blue on
frontend) had the shorter route with a longer gap, but even that goes away
here and the alternatives given are only worse.


I can't find any documentation for what to call this gap or how to affect
it via the .lua profile etc.


I'm guessing that the router is prioritizing this gap over all else ; hence
it is not considering the fact that the route distance is changing by a
whopping amount.


So what I want to do with my osrm-backend build:

- Make the router ignore the gap and simply prioritize by route distance
over all else.

OR:

- Add the gap length to the route length when doing prioritization.


I can understand that doing this would make the router not work for other
applications, hence I only want to customize my own instance to fit my use
case scenario.


Looking for some help on this matter. I can share the url's of my osrm
instances privately if someone needs for testing.


If it's not part of the standard options (I'm guessing not), even then if
someone can point me to where the relevant code is, or what is the
variable/function name of this gap, then I can take a crack at it myself.


Thanks, and kudos to the programmers that made this amazing tool possible.
The speed and performance is fantastic I'll add.

--
Cheers,
Nikhil VJ, Pune, India
https://nikhilvj.co.in
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[Talk-in] Seeking help / resource persons for bulk data imports

[Nikhil VJ]

Hi Friends,

Craig <https://tasks.teachosm.org/user/Craig%20Dsouza>, Chiranjan (who
works at Pune Municipal Corporation under 100 Resilient Cities program) and
I <https://tasks.teachosm.org/user/Answerquest> have conducted some
sessions on OpenStreetMap in Pune, MH over the past month. One of them was
at Gokhale Institute of Politics and Economics, and another was at College
of Engineering Pune > Town Planning Department.

We have come across queries from people having great data, well curated and
institution-backed, that they want to contribute to OpenStreetMap. But they
do not have the resources and knowledge required to do so on their own.

We do not have experience in this, and the time we have on our side to put
into this will be limited. Looking for some resource person(s) who can
either instruct precisely (very precisely!), or take charge of and drive
the process.

After seeing through one import end-to-end we may develop more capacity to
do this on our own.

I will be attending SOTM Asia this weekend, let's meet up if you're there.
(Name: Nikhil VJ. OSM id: Answerquest. For phone num, see email signature).
Also inviting other people who want to do bulk data import, let's connect.



Some links I have read through regarding this topic:

https://wiki.openstreetmap.org/wiki/Import

Main OSM Wiki page on bulk imports


http://www.weeklyosm.eu/archives/10846

Has a section on imports


https://lists.openstreetmap.org/listinfo/imports

the imports mailing list of OSM


https://wiki.openstreetmap.org/wiki/Import/Catalogue

Table of OSM bulk imports so far.


https://wiki.openstreetmap.org/wiki/Kerala_Road_Import

Kerala roads import page


https://wiki.openstreetmap.org/wiki/Import/Catalogue/AlberiMonumentali-RAFVG-opendata

another wiki page of a bulk import process


--
Cheers,
Nikhil VJ
+91-966-583-1250
Pune, India
http://nikhilvj.co.in
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[Talk-in] Pune Mapping Parties 26,27 Oct #SoTMAsia18

[Nikhil VJ]

Hello mapping people,

We (DataMeet Pune chapter) are organising two events (Mapping parties) in
Pune, MH for talking about OSM and mapping some things, as a run-up to the
State of the Map Asia event next month.

1. Friday 26 October 2018, 4-6pm at Gokhale Institute, BMCC road
2. Saturday 27 October 2018, 2-5pm at GeoSpoc, Baner

The 26th one will have some urban and rural planning students from COEP and
Gokhale attending as major chunk of audience.
The 27th one will be non-specific.
Both events are open for all to join (and you're cordially invited!), we
will put up event links on meetup.com/DataMeet-Pune/ soon to catch RSVPs.
The sessions will be hands-on and participants will be asked to bring their
laptops.

I wanted to reach out to folks on this mailing list who are in Pune,
inviting your inputs and your involvement in conducting these events. The
main ways you can help is by:
1. Being a behind-the-shoulder guide and troubleshooter for the hands-on
mapping activities.
2. Being a validator on the mapping tasks we will do via tasking manager.
(this one's online so open to experienced mappers anywhere and will happen
post 27th, but let's interact once before you start validating)

We are collecting resources for sharing with participants here:
https://tiny.cc/punemapping (short link to this google doc
<https://docs.google.com/document/d/1FnwpPlas8j26O_YHPnxtoOpGgi0880k88fKWNUUyOGI/edit>
)
For mapping activities I am setting up tasks on tasks.teachosm.org. You can see
them here
<https://tasks.teachosm.org/contribute?difficulty=BEGINNER=%23SotMAsia18>.
Focus : tree mapping in Pune, rural roads mapping, settlements marking. We
will have limited time on hand so will aim to keep it simple.

>From my end, I'm just getting started with contributing on OSM (my profile
<https://www.openstreetmap.org/user/Answerquest/>) and have mostly been
involved in it through the tasking manager. Done some work in leaflet,
downstream from OSM, and have benefited a lot from it. We did a small pilot
<http://tasks.openstreetmap.in/project/89> last year.

It would be great to have an experienced mapper at the 26th event come and
share about their experience with the audience for 2-3 mins (We've got one
for 27th). If you are one, please write back with your OSM profile link.

*Some specific queries:*
1. Can you share your story of using data extracted from OSM in a major way?
2. Can you share some location in India that is "pristine" for road
mapping? (ie, clear visible roads and not mapped yet) (share privately so
its still pristine on event day :P)
3. Is there some specific use case for an urban planner or rural planner
that you can share? (preferably an Overpass Turbo query link?)
4. Can you share any timelapse to show OSM India coverage over the years,
or similar resources? I have a 3D globe one but it only glances by India
briefly.


PS: tasks.openstreetmap.in would have been ideal, but there's a blocking
issue <https://github.com/osm-in/osm-tasking-manager2/issues/14> there
right now so using another platform for now.

--
Cheers,
Nikhil VJ
+91-966-583-1250
Pune, India
http://nikhilvj.co.in
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[Talk-in] tasks.openstreetmap.in is down

[Nikhil VJ]

Hello,

Apologies if this is a repeat post.. I'm not seeing these mailing lists
often.

The India HOT Tasking Manager site http://tasks.openstreetmap.in is not
working when we try to login. Getting a generic error message

> "The server encountered an internal error or misconfiguration and was
unable to complete your request."

And at some places, advertisement popups are spawning, there might be some
malware scripts at play.

A fellow mapper who had been participating in our project
<http://tasks.openstreetmap.in/project/89> there just wrote to me about it.

Other tasking manager sites I checked are up and running properly.


--
Cheers,
Nikhil VJ
+91-966-583-1250
Pune, India
Website <http://nikhilvj.co.in>
DataMeet Pune chapter <https://datameet-pune.github.io/>
Self-designed learner at Swaraj University <http://www.swarajuniversity.org>
Payment / Contribute <https://nikhilvj.benow.in/pay>
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[Talk-in] How does OSM store its data

[Nikhil VJ]

Hi,

I want to learn how OpenStreetmap stores and manages its data, plus how
Overpass Turbo extracts it.

I find the key-value pair system fascinating (variable fields, organic
building up of data) and want to replicate that elsewhere. Just the data
storing part.. don't want to generate map tiles etc.

Any pointers? Any place I should ask?

For those interested, here's a link to the project I have in mind:
Crowdsourcing-Map-based-data
<https://github.com/datameet-pune/datameet-pune.github.io/wiki/Crowdsourcing-Map-based-data>

--
Cheers,
Nikhil VJ
Pune, India
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Re: [Talk-in] Mapathon as a part of OSMGeoweek (Nov 12-18)

[Nikhil VJ]

Hi Chetan,

That's great! All the best for the event!

We're organizing one in Pune the weekend after, on Sat 25th Nov.
Event link: https://www.meetup.com/DataMeet-Pune/events/245114878/

We'll be focusing on mapping roads in rural Pune District.
We have loaded the village shapes to HOT Tasking Manager,
http://tasks.openstreetmap.in/project/89
So mappers can go village by village.
The activity is open for joining in now itself.


--
Cheers,
Nikhil VJ
+91-966-583-1250
Pune, India
Website <http://nikhilvj.cu.cc>
DataMeet Pune chapter <https://datameet-pune.github.io/>
Self-designed learner at Swaraj University <http://www.swarajuniversity.org>
Contribute <https://www.instamojo.com/@nikhilvj/>

On Wed, Nov 15, 2017 at 11:49 AM, Chetan H A <chetanh...@gmail.com> wrote:

> Hello all,
>
> We are running a mapathon at Mapbox Bengaluru office on this Friday 5:00pm
> as a part of #osmgeoweek which celebrates maps. The theme is of the
> mapathon is to map using street level photos like Mapillary in Bengaluru.
> RSVP to join us and explore the coverage of street level photos in India.
>
> Link to RSVP: https://www.mapbox.com/events/osm-geoweek-blr/
>
> Best,
> Chetan
>
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[Talk-in] Seeking advice for tree mapping using OSM

[Nikhil VJ]

Hi Friends,

I want to find out how to bring integration into OSM or similar in tree
mapping / tree census exercises.

Some non-negotiable requirements are:

   1. The data we pool in remains extractable for all, the way we can
   granularly extract OSM data using overpass-turbo; doesn't get locked up
   anywhere *even if the survey/census is incomplete*.
   2. It's possible to build up over time. So the trees we map this summer,
   a few months later a team could curate that data with more fine-tuned info;
   the mapping exercise will not need to be done all over again. Or, growth /
   decline of a tree's height/canopy can be tracked yearly.


I'm using Overpass Turbo  to extract OSM data,
and running this query in the wizard:
*natural=tree | natural=tree_row*

As of now, in my city's central area, I can find a decent job of basic tree
mapping done for one of the main public gardens in my city (like this
). But these only have the
most basic key-value pair in them, so far.

I want to know what are other key-value pairs etc I can use to put relevant
data in.
Some parameters I expect we would need:

   - local name of the tree species
   - scientific name of the tree species
   - height of the tree
   - canopy area
   - date or month of observation of above two properties
   - A URL to a photo of the tree that one might upload on imgur.com or so.
   - year of planting if known
   - was it transplanted (after sapling stage) from an earlier location
   (yes/no)
   - custom code / serial number assigned by the surveying group so they
   can keep track.

Following on from requirement#2, there will be a wide variance in what data
is recorded first and what will have to be left blank to add in later. Our
solution needs to make room for this variability.

Next, I want to learn how to upload a set of data at a go rather than one
by one points. For example, we would have a table/spreadsheet with all the
above parameters as columns and a latitude and longitude column. How do I
upload that table to OSM, mapping the columns to the relevant fields?

>> So can anyone help with figuring out the above?

As of now, the groups I want to do this with (reforestation, local tree
care-taking, environmental education, school projects) aren't aware about
OSM or the fact that data can be granularly extracted using it, so they
probably haven't tried it out yet. But I think this would be a perfect fit.
I want to figure everything out on the computers-end and give them a neat
and tidy process that they can adopt and integrate without needing a degree
in IT or a diploma in GIS etc.

PS: http://trees.metastudio.org is also a very promising platform, but
still I want to explore how one might go about this in OSM all the same;
and besides, the export feature isn't working on my end as of now, and bulk
upload isn't directly doable either.

--
Cheers,
Nikhil
+91-966-583-1250
Pune, India
Self-designed learner at Swaraj University 
http://nikhilsheth.blogspot.in
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[Talk-in] Telangana state boundary missing imp metadata

[Nikhil VJ]

Hello,

I came across this key-value pair while checking out state boundaries:
is_in:country_code=IN

..but it's missing for Telangana.

So in overpass, if I'm looking at Telangana and I run this query:
boundary=administrative and admin_level=4 and is_in:country_code=IN
... then all states except Telangana get highlighted.

I'm new to this all and presently can't understand how one can edit a
large element like this (browser editor asks to zoom in to small area
before we can edit.. I could add in some roads but whole state
boundary I can't see any way to edit). So can someone who knows pls
bring all the Indian states in sync?

Telangana: http://www.openstreetmap.org/relation/3250963

for refrence, please see the metadata of some other states:

Maharashtra:  http://www.openstreetmap.org/relation/1950884
Madhya Pradesh: http://www.openstreetmap.org/relation/1950071
Sikkim: http://www.openstreetmap.org/relation/1791324

-- 
--
Cheers,
Nikhil
+91-966-583-1250
Pune, India
Self-designed learner at Swaraj University 
http://nikhilsheth.blogspot.in

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