Re: [Talk-in] OSM India Telegram -> Matrix Bridge

[Aruna S]

Have some leads on server space, will follow up with them, and keep the
community posted about any developments. Meanwhile, if you have any
additional resources please do share them here!
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Re: [Talk-in] OSM India Telegram -> Matrix Bridge

[Aruna S]

This is working both ways now. Thanks to Kevin(@Muzirian) for poking me
about this. We now have a proper Element/Matrix/Riot channel:
#osm-in-general:matrix.org.

Join the party!
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Re: [Talk-in] OSM India Telegram -> Matrix Bridge

[Aruna S]

Update: I did create this, but turns out Matrix Telegram bridges have an
issue now. (As seen on the banner at the top on https://t2bot.io/telegram/).

So messages from Matrix flow into Telegram but not the other way around. We
could try using other Riot servers, but Matrix is the one that has bridges
to a large number of platforms. Thoughts here?
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[Talk-in] Crowdsourcing COVID related info on a map

[Aruna S]

Hi folks,

ReapBenefit is an organisation that focusses on decentralising solutions to
social issues, and empowering individuals at the local level.

They are currently working on mapping Corona related info on a map in
collaboration with the government: http://testnd.solveninja.org/.


They need help w fixing the following issues, most of which are map and map
interface related.

Caveat: The current base map is not OSM, and is Google maps. Their API
stack is also dependent on the Google maps API stack. Their map data is
currently stored on an SQL database.

Any thoughts/help on improving this app for public good, would be super
appreciated:

*UI-*

   1.

   Icons which are explanatory of the type of information it represents -
   we are unable to identify the best icons to suitably indicate the data. We
   will have new use cases coming, like verified donees etc.


*UX*

   1.

   Proper segregation of data on the tool
   2.

   Pop-up boxes which contain relevant and usable information
   3.

   Sense that there is some progress/development happening as a result of
   this tool


*Data Query and performance*

   1.

   Increase speed of query of data. The data is pulled on the basis of a
   bounding box around the lat long of the user’s screen. This bounding box is
   quite large as of now. The query time varies. It needs to be optimised, the
   query indexed and tuned to make it responsive.
   2.

   The tool is at times slow to respond - can we debug this to make it
   overall responsive?
   3.

   The map marker popups trigger a query to retrieve the details relevant
   to it. This takes a small amount of time (2-3 seconds). Can we speed this
   up?


*Tech Stack:*

Angular JS 7 for front end

PHP for the apis

MySQL for the DB

Kuldeep and team, please add any other info I may have missed.

Stay safe, folks!

Thanks,
Aruna
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Re: [Talk-in] OSM India Telegram -> Matrix Bridge

[Aruna S]

This is super easy to do, and I am happy to set it up. What did you have in
mind exactly? Do we want to set up a Riot workspace, and bridges to
WhatsApp, Telegram, Slack, Messaging? Or just a Riot workspace with a
bridge to Telegram.
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Re: [Talk-in] Chikpete Mapping party!

[Aruna S]

I created an Eventbrite link as well, to make the RSVP process an easier
one: https://www.eventbrite.com/e/chikpete-mapping-party-tickets-60370542919
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[Talk-in] Chikpete Mapping party!

[Aruna S]

Hey everyone,

I am planning to organise a mapping party in and around Chikpete on the
21st of April. The original plan received a lot of interest on Twitter, so
I am excited for how this could extend the OSM community in bangalore.

I have created this wikipage as an initial draft to consolidate the plan:
https://wiki.openstreetmap.org/wiki/Chikpete_Mapping_Party. I also plan to
create an event on another event-information platform to make the process
of RSVP-ing more accessible than what it is on the Wiki.

I would love your suggestions on something that can be changed in the plan
or the tools. Further, I would love to see some of you at the mapping
party, so we can have more folks with prior mapping experience at the event.

Thanks,
Aruna
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[Talk-in] Extracting a polygon from an mbtiles file

[Aruna S]

Similar to tilelive-copy, are there other tools that can be used to extract
data within a polygon boundary from an mbtiles file?

mbtiles-extracts comes close, but it extracts tiles intersecting with the
polygon, and not tile data bounded by the polygon[1]

[1]: https://github.com/mapbox/mbtiles-extracts/issues/15
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Re: [Talk-in] Understanding "unprojection"

[Aruna S]

Sorry, to come to your other questions:

> I haven't published this script online because I'm afraid it'll get used
recklessly and cause excess load on the target tile server.It generates a
Z/X/Y URL list of tiles at multiple zoom levels. Then I used a download
manager to download the tiles with some time gap (so I don't trigger a
server lockout), with z/x/ folder paths maintained.

A python library does this, where it takes a bounding box and a zoom, and
generates z/x/y at zooms for the bounding box. Is your script doing
something different from this?

Warmly,
Aruna
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Re: [Talk-in] Understanding "unprojection"

[Aruna S]

Hey Nikhil!

Thanks a lot for taking the time to answer this. I did not know about these
verifiers and validators at all, so I learnt a little bit more about GIS
weirdness. : )

I ran the geojson through the verifier, and tried running my script with
the updated geojson. Unfortunately, it seems to be something else - I am
not sure if tile boundaries or other complications with the mbtiles files
is causing this issue, since these polygons aren't able to be cut up from
any mbtiles file that I ran them on.

The question is now present on the GIS StackExchange at
https://gis.stackexchange.com/questions/301975/mbtiles-extracts-does-not-work-with-my-geojson
.

Thanks again, Nikhil! : )

Warmly,
Aruna
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[Talk-in] Understanding "unprojection"

[Aruna S]

Hi everyone!

I am working with the mbtiles-extracts library:
https://github.com/mapbox/mbtiles-extracts. Given an mbtiles file and a
geojson, the library extracts mbtiles cutouts of the polygons in the
geojson.

Except, it does not work for some geojsons.

As documented in https://github.com/mapbox/mbtiles-extracts/issues/10, it
does not work for any polygon present in the following geojson for the
mbtiles listed below:

   - MBTILES: Pretty much every tileset on
   https://osmlab.github.io/osm-qa-tiles/historic.html. Can definitely
   replicate it using for
   
https://s3.amazonaws.com/mapbox/osm-qa-tiles/historic/2008-Q1-qa-tiles.mbtiles
   - GEOJSON:
   https://gist.github.com/arunasank/c98ef28abd51b54579c7609f8ebc1de1

When I debug, I see that:
* This function:
https://github.com/mapbox/mbtiles-extracts/blob/master/index.js#L175
returns a falsy value for all the features in the above geojson, resulting
in a falsy value here:
https://github.com/mapbox/mbtiles-extracts/blob/master/index.js#L58-L62

Any help in understanding why these polygons are different from other
polygons, or if there's a pattern I am missing, would be really helpful!

If there are other mailing lists where this could be answered, please point
me to them.

Warmly,
Aruna
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Re: [Talk-in] Rendering Tamilnadu map in Tamil

[Aruna S]

Sounds great!
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Re: [Talk-in] Rendering Tamilnadu map in Tamil

[Aruna S]

Hey Kamal,

This is so exciting to me. Thank you for sharing this with the community!

Warmly,
Aruna
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Re: [Talk-in] Extracting rivers as multipolygons

[Aruna S]

> I'm looking at a few options for your use case. It'd be more useful if you
> could let know the scale of the project - that is the geography you're
> covering. Depending on the extent, options could be narrowed down.
>

The use-case is to extract tiles on the banks of rivers. Any river in
India, for example.
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Re: [Talk-in] Extracting rivers as multipolygons

[Aruna S]

Hey Arun,

> Find all water polygon/relations that intersect with the buffered
centerlines
This is the part I was missing. What tags would I be looking for here? I
see that for https://www.openstreetmap.org/edit#map=16/24.4812/79.8781, the
tags are
natural=water
type=multipolygon
water=river

Should this suffice for all river-cases?
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Re: [Talk-in] Extracting rivers as multipolygons

[Aruna S]

Ramya!

Hi, ok. So, do you have ideas around extracting the relations I've sent as
an example (https://www.openstreetmap.org/edit#map=16/24.4812/79.8781) -
for example, if I wanted to extract all relations that make up the Sutlej
river, would I have to manually find each each relation ID and use the
above query, or is there a simpler way to extract all the relations and
multipolygons that compose this river?
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Re: [Talk-in] OpenStreet india map for commercial use.

[Aruna S]

Hey Akshay,

I am not fully sure of your question, but if you are interested in
modifying the disputed boundaries of India, there's a plugin that can do
this for you: https://github.com/mapbox/mapbox-gl-boundaries
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[Talk-in] Metro Pillars

[Aruna S]

It would be nice to map and create data for the metro pillar numbers. They
are often used to describe location, both informally and in addresses.

What tag would be appropriate for this?
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Re: [Talk-in] Change of merged bank names in OpenStreetMap

[Aruna S]

Chethan, one way may be to automate this by extending
https://github.com/srividyacb/osm-name-translation with Srividya's help and
using her script/workflow to extract the names/IDs of the SBI objects from
OSM. Once you have a CSV, you can use the quick drag functionality that
CSVs offer, to quickly copy paste SBI under the name tag, and subsequently
use her python script to automate the changeset!

I know the community has several hesitations over automated scripts, so may
be a good idea to work on:
1. Testing the workflow with a single object first
2. Adding all the edits to the map, and monitoring the changeset.

Will let others express their shock/friendly-nods on this suggestion. : D
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Re: [Talk-in] How to get all missing street names for chennai?

[Aruna S]

On Mon, Apr 3, 2017 at 3:25 AM, Srikanth Lakshmanan 
wrote:

> Hi Shrini,
>
>
> On 2 April 2017 at 21:41, Shrinivasan T  wrote:
>
>> How can get them all?
>>
>
> Mapzen provides metro extracts[0] and I used xpath here to get list of
> nodes without name:ta. Parsing extracted Chennai osm file (400 MB) consumes
> lot of memory. Python experts, please feel free to optimize this code[1] in
> better ways.  The list of nodes (I will come to ways, relations soon) is
> available here[2].
>

Firstly, sorry I think I misunderstood your question - you want to make
Tamil maps! That's awesome - my music teacher will be very happy. : )

You can use https://github.com/mapbox/osm-tag-stats with the country
mb-tiles from http://osmlab.github.io/osm-qa-tiles/country.html, with a
filter like `["==", "name:ta", ""]`.

You can then convert the geojson to csv using a converter available online.

Shrini, and Srikanth, if you require a CSV similar to what Srikanth has
generated, I am happy to generate it for you with a link to the node on
OpenStreetMap. But, first I am curious if Arun, or other Mapboxers on the
list, can explain how to make a To-Fix task if we have a CSV - not sure
what attributes the CSV should have. This will make the process of using
the csv to edit the map really easy, instead of adding edits one by one
from a CSV.

Let's make the map better!
Aruna
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Re: [Talk-in] GSoC Idea -- Openstreetmap Indic Localization helper tool

[Aruna S]

This thread is so great!

> [1] https://gitlab.com/indicproject/gsoc-2017/edit/master/ideas-list.md
> [2] http://varnamproject.org

The varnam link doesn't work for me. Can someone help?

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Re: [Talk-in] Automating OSM translation into Indic languages

[Aruna S]

Wow, this is really cool, and pretty fool proof for nodes at higher
admin levels. Excited to see what follows!

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[Talk-in] Tree Mapping

[Aruna S]

Hello list,

I really enjoy tree mapping, and I want to be able to do it accurately and
extensively. A few months ago, I mapped a few trees in Lalbagh, but I did
this using GPS on my phone and the results are quite inaccurate.

I know that Karthik, Noopur and Arun mapped trees in a park in Indiranagar
during one mapping party using field papers and I think the results of
their mapping party were very accurate. If I remember correctly, Arun's
field paper had a lot of information recorded with footstep count as a
measurement unit.
I tried using field papers today, but the satellite imagery is quite
outdated and has more trees than my real-life street and I ended up GPS
tracing again.

Karthik, Noopur and Arun, would you be so good as to document your tree
mapping techniques somewhere and provide some expert insights into the best
ways to accurately map trees? :)

Much warmth,
Aruna
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Re: [Talk-in] Tirumala Printed Map

[Aruna S]

Hey Chethan,

This is such a lovely idea. The map looks very informative.

Great job! :)

More power to the people,
Aruna
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Re: [Talk-in] Automating OSM translation into Indic languages

[Aruna S]

Just wanted to put a word in for Nomino http://nomino.openstreetmap.fr/( Wiki
http://wiki.openstreetmap.org/wiki/Nomino) today, which seems like a well
thought out effort to crowd source translations.
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Re: [Talk-in] Automating OSM translation into Indic languages

[Aruna S]

Planemad,
I'm hoping that solving the transliteration problem is easier than solving
the translation problem. Just auto-transliteration would be a nice initial
goal to have.

I'm looking for more libraries that can transliterate from English to at
least one Indic language. The developer of SILPA had a valid point about
English having a very weak pronounciation-typing link. So words like Queue
etc would be hard to transliterate using a generic transliterator. There's
a lot more reading-up that I need to do, before re-working the python
script. I'll try to get the csv extraction out soon.

Google's transliteration APIs have deprecated
https://developers.google.com/transliterate/v1/getting_started and Yahoo
is going to stop maintaining it's transliteration application
http://transliteration.yahoo.com/ from April 9th. I am looking for other
Indic transliterator softwares that come with APIs.(I have written to the
developer of Pramukh-IME http://service.vishalon.net/pramukhtypepad.aspx,
but it's not free/open source and may not have APIs).
Suggestions/alternatives very welcome. :)

Indigomc,
Yes. :) I thought about that too.

For Indic-Indic transliterations, Tamil would generally be a bad choice
for the first instance of transliteration, since it lacks so many alphabets
that other Indic languages do.

What language do you think would be a good choice while transliterating for
the very first time? I have a feeling that Hindi/Kannada would be friendly
and harmless. If you look at the current transliteration on the node
https://www.openstreetmap.org/edit?node=1118255762#map=19/12.99451/77.55430,
the Kannada to Tamil transliteration changes the Kananda T(h)a to the
confused Tamil Ta/Da equivalent automatically.

Sajjad,

Transliteration definitely should stay out of OSM. Since much of the
 tracing itself is manual effort, it's okay to ask for translating manually.
 Automatic translation is not going to take us far, it's complicated. We
 were thinking of a tool that could list all name tags in like a spreadsheet
 based on a bounding box, and the user can fill in the language specific
 tag, hit save.

 Want to take a stab at this? I can help.

 That would be so wonderful! Would this mean that we

   1. Extract all the name tags within a bounding box to a
   spreadsheet/document
   2. Host the document somewhere for people to edit.
   3. Update the map with the new tags

If we have an additional field to crowd source an English-The Indic
Language we decide to pick for the first instance of transliteration
transliteration for proper nouns in the name tag, it could be useful
if/when we want to transliterate into other Indic languages later.
Separating proper nouns is very important I think, since the SILPA
transliterator seems to transliterate English dictionary words quite well.
I will try to converse a little more with SILPA soon, and post updates.
Warmly,
Aruna
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Re: [Talk-in] Automating OSM translation into Indic languages

[Aruna S]

 There's a lot of interesting material in your post. But first, can you
 clarify, are you seeking to add the transliterations to the OSM database,
 or adding them when rendering?. It would be worth keeping in mind this
 'guideline' - [
 http://wiki.openstreetmap.org/wiki/Names#Avoid_transliteration], which I
 take to mean as 'don't add a transliteration if a machine can transliterate
 on the fly for you'. (I've been adding transliterations myself in ISO15199,
 despite this).

  Regards, indigomc (I. M. Chengappa)


Hello!

Thank you for your mail.

I am actually trying to translate(not transliterate), but doing it in two
steps:
1) Transliteration of proper nouns like Rajajinagar/Jayanagar/Bengalooru
2) Use translations of words like police station etc from a dictionary I'm
hoping to crowd source. I was thinking that the words that need to be
stored for translation in such a dictionary can be obtained from
translations of OSM tags. Common translations would be of words like
police station or road or building or company and all these are
words in the OSM tags.

I am not very sure of what the wiki is trying to say actually. Would it be
a bad idea to have multiple translation tags for nodes and ways -- for
example, Kannada, Tamil, Hindi, Bengali tags for a node in Bangalore? Would
this be against We want to avoid adding in tags into our database for
every named object via automated or semi-automated Import
http://wiki.openstreetmap.org/wiki/Import.(from the wiki)?

What is ISO15199? Sorry, very new to OSM.

I did it only for one node:
 https://www.openstreetmap.org/edit?node=1118255762#map=19/12.99451/77.55430


The [name:ta] tag added  is to just show a proof of concept. Currently it
is only transliterated, not translated. The next version of the script
should also translate. Ideally, it should be ராஜாஜிநகர காவல் நிலையம் and
not ராஜாஜிநகர ஆரக்ஷக டாணெ
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Re: [Talk-in] About having a mapping party in Koorachundu Village Panchayat - Kozhikode district - Kerala - Reg.

[Aruna S]

Hi Jaisen,

As someone who's a newcomer to mapping, I've just been introduced to some
wonderful possibilities. Thanks so much for documenting the process so
extensively, makes for very good reading and learning material. Koorachundu
is a beautiful village.



On Mon, Mar 23, 2015 at 9:49 AM, Yogesh योगि 
yog...@karnatakaeducation.org.in wrote:

  Hi Jaisen,

 On Saturday 21 March 2015 07:38 PM, Jaisen Nedumpala wrote:
  Hai,
 
  I have written a blog post, about the background, and the need of the
 mapping experiments held at Koorachundu Village Panchayat.
 
  Here is the link:
 
 
 http://blog.smc.org.in/mapping-efforts-in-an-unsurveyed-land-koorachundu/

 One of the fine examples of using OSM at the grassroots level.
 Well documented with nice pictures, will certainly help other local
 governments engaged in similar efforts. :) Loved the Malayalam map and
 GNOME being used in Malayalam. :) :)




 --
 Yogesh K S
 Sent from an Electronic Device



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