A quick how-to on getting offline maps for Unav.

Recently i needed to update my offline map and everytime it's quit a mess to setup an OpenstreetMap local server, lost of hours lost on that. I recently found a docker instance perfect for our needs.

What we need in this how-to

• A linux computer (of-course) with disk space
• Snap of Jtiledownloader installed
• docker.io installed

Optional

• A nextcloud instance
• desktop nextcloud sync software
• Ubsync.

First of all : setting up tile server.

Not much to say, except follow the work of this great Github repository :
https://github.com/Overv/openstreetmap-tile-server

docker volume create openstreetmap-data

git clone https://github.com/Overv/openstreetmap-tile-server.git

cd openstreetmap-tile-server/

What i've done :
docker volume create openstreetmap-data
download the appropriate pbf there : http://download.geofabrik.de/

docker run -v /absolute/path/to/luxembourg.osm.pbf:/data.osm.pbf -v openstreetmap-data:/var/lib/postgresql/10/main overv/openstreetmap-tile-server import

If lucky enough then

docker run -p 80:80 -v openstreetmap-data:/var/lib/postgresql/10/main -d overv/openstreetmap-tile-server run

Std output :

root@T450s:/home/ernest# docker run -v /home/ernest/Documents/texas-latest.osm.pbf:/data.osm.pbf -v openstreetmap-data:/var/lib/postgresql/10/main overv/openstreetmap-tile-server import
Unable to find image 'overv/openstreetmap-tile-server:latest' locally
latest: Pulling from overv/openstreetmap-tile-server
898c46f3b1a1: Pull complete 
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Digest: sha256:f8c58ef99819eb73adfaee91401b7f23a878f29122fae285734912657f5082da
Status: Downloaded newer image for overv/openstreetmap-tile-server:latest
+ '[' 1 -ne 1 ']'
+ '[' import = import ']'
+ CreatePostgressqlConfig
+ cp /etc/postgresql/10/main/postgresql.custom.conf.tmpl /etc/postgresql/10/main/postgresql.custom.conf
+ sudo -u postgres echo 'autovacuum = on'
+ cat /etc/postgresql/10/main/postgresql.custom.conf
# Suggested minimal settings from
# https://ircama.github.io/osm-carto-tutorials/tile-server-ubuntu/

shared_buffers = 128MB
min_wal_size = 1GB
max_wal_size = 2GB
maintenance_work_mem = 256MB

# Suggested settings from
# https://github.com/openstreetmap/chef/blob/master/roles/tile.rb#L38-L45

max_connections = 250
temp_buffers = 32MB
work_mem = 128MB
wal_buffers = 1024kB
wal_writer_delay = 500ms
commit_delay = 10000
# checkpoint_segments = 60 # unrecognized in psql 10.7.1
max_wal_size = 2880MB
random_page_cost = 1.1
track_activity_query_size = 16384
autovacuum_vacuum_scale_factor = 0.05
autovacuum_analyze_scale_factor = 0.02
autovacuum = on
+ service postgresql start
 * Starting PostgreSQL 10 database server
   ...done.
+ sudo -u postgres createuser renderer
+ sudo -u postgres createdb -E UTF8 -O renderer gis
+ sudo -u postgres psql -d gis -c 'CREATE EXTENSION postgis;'
CREATE EXTENSION
+ sudo -u postgres psql -d gis -c 'CREATE EXTENSION hstore;'
CREATE EXTENSION
+ sudo -u postgres psql -d gis -c 'ALTER TABLE geometry_columns OWNER TO renderer;'
ALTER TABLE
+ sudo -u postgres psql -d gis -c 'ALTER TABLE spatial_ref_sys OWNER TO renderer;'
ALTER TABLE
+ '[' '!' -f /data.osm.pbf ']'
+ sudo -u renderer osm2pgsql -d gis --create --slim -G --hstore --tag-transform-script /home/renderer/src/openstreetmap-carto/openstreetmap-carto.lua -C 2048 --number-processes 4 -S /home/renderer/src/openstreetmap-carto/openstreetmap-carto.style /data.osm.pbf
osm2pgsql version 0.96.0 (64 bit id space)

Allocating memory for dense node cache
Allocating dense node cache in one big chunk
Allocating memory for sparse node cache
Sharing dense sparse
Node-cache: cache=2048MB, maxblocks=32768*65536, allocation method=11
Mid: pgsql, cache=2048
Setting up table: planet_osm_nodes
Setting up table: planet_osm_ways
Setting up table: planet_osm_rels
Using lua based tag processing pipeline with script /home/renderer/src/openstreetmap-carto/openstreetmap-carto.lua
Using projection SRS 3857 (Spherical Mercator)
Setting up table: planet_osm_point
Setting up table: planet_osm_line
Setting up table: planet_osm_polygon
Setting up table: planet_osm_roads

Reading in file: /data.osm.pbf
Using PBF parser.
Processing: Node(44188k 237.6k/s) Way(4610k 12.36k/s) Relation(26670 952.50/s)  parse time: 587s
Node stats: total(44188377), max(6434488285) in 186s
Way stats: total(4610012), max(686484151) in 373s
Relation stats: total(26922), max(9523915) in 28s
Sorting data and creating indexes for planet_osm_point
Sorting data and creating indexes for planet_osm_line
Sorting data and creating indexes for planet_osm_polygon
Sorting data and creating indexes for planet_osm_roads
Copying planet_osm_roads to cluster by geometry finished
Creating geometry index on planet_osm_roads
Copying planet_osm_point to cluster by geometry finished
Creating geometry index on planet_osm_point
Creating osm_id index on planet_osm_roads
Creating indexes on planet_osm_roads finished
All indexes on planet_osm_roads created in 20s
Completed planet_osm_roads
Stopping table: planet_osm_nodes
Stopped table: planet_osm_nodes in 0s
Stopping table: planet_osm_ways
Building index on table: planet_osm_ways
Creating osm_id index on planet_osm_point
Creating indexes on planet_osm_point finished
All indexes on planet_osm_point created in 75s
Completed planet_osm_point
Stopping table: planet_osm_rels
Building index on table: planet_osm_rels
Stopped table: planet_osm_rels in 4s
Copying planet_osm_line to cluster by geometry finished
Creating geometry index on planet_osm_line
Creating osm_id index on planet_osm_line
Creating indexes on planet_osm_line finished
All indexes on planet_osm_line created in 218s
Completed planet_osm_line
Copying planet_osm_polygon to cluster by geometry finished
Creating geometry index on planet_osm_polygon
Creating osm_id index on planet_osm_polygon
Creating indexes on planet_osm_polygon finished
All indexes on planet_osm_polygon created in 344s
Completed planet_osm_polygon
Stopped table: planet_osm_ways in 385s

Osm2pgsql took 993s overall
node cache: stored: 44188377(100.00%), storage efficiency: 57.43% (dense blocks: 3386, sparse nodes: 24604874), hit rate: 100.00%
+ service postgresql stop
 * Stopping PostgreSQL 10 database server
   ...done.
+ exit 0
root@T450s:/home/ernest# sudo docker run -p 80:80 -v openstreetmap-data:/var/lib/postgresql/10/main -d overv/openstreetmap-tile-server run

and open in your browser : http://localhost/ done you have a tile server running.

I'm not sure how long the docker instance last and may need to be regenerated each time, fine for me I'm using it every 6 month. Please see the github info, if you want to have an docker instance lasting.

Second step : downloading the tile, for that you need Jtiledownloader

See : http://unav.me/offline/ and the snap store


The configuration is pretty simple : as server enter http://localhost:80/tile. then open "slippy map chooser" you should see the map.
Then select the area of interest (defined with left click), set tile zoom level to 10,11,12,13,14,15,16,17 and click download and wait.

Third step :

transfert to the phone... this is up to you, define as the step 6 there : http://unav.me/offline/
I'm suggesting to zip the folder and extract it in the phone.
Personnally, i'm synchronizing my Jtiledownload folder archive to my nextcloud instance and then this instance to my utouch folder, it's longer but "automatic" update.

I hope it will help to reduce your data consumption

Restart from scratch

Following thise link to cleanup docker image, container and volume
https://www.digitalocean.com/community/tutorials/how-to-remove-docker-images-containers-and-volumes

Marius,

I would see it
Stable devices & software,
Fully integrated with standards like : Mail, Caldav, Webdav, Carddav etc...
Strong base software : Mail, GPS, Communication, Browser,
Overall being secured and hackable.

Then Convergence + Anbox for some proprietary stuff like banking, bus ticket etc..

Hello,

As you know to track your activity there is the application Activity Tracker : https://open-store.io/app/activitytracker.cwayne18
Unfortunately due to the Utouch security policy, GPS signal is not accessible when the screen is off or app is in background, that why the original developer force the screen to stay on, reducing significantly the battery life with no benefit.
Issue is tracked there : https://github.com/ubports/ubuntu-touch/issues/1067

In order to extend life of the phone for some long activities, i've made a wrapper of the test_gps command.
It requires to be launched from a terminal with it "Prevent app suspension" activated in Tweak app.

The GPS Utouch tracker is available there : https://framagit.org/ernesst/gps-utouch-tracker, still not polished yet.
Just download the folder, place it somewhere in your homefolder.
To start it, go to the folder and launch it with sudo ./GPS_tracking.py

It will start to track your activity, to stop it just go back to the terminal and hit the virtual key "Ctrl+c" and it will create a gpx file.

To visualize this file, you can import it in Activity Tracker.

Enjoy.

Most of the guest wifi network request to catch an non https request to bring you to their non secure login page.
So to get the login page try to load a page in http only like http://www.no-ssl.com/ then you should normally get the login page.
Then it's the moment to start your VPN connection.

• PyOtherSide has been integrated to the system since 16.04

• To keep display on : there is an example in Activity Tracker app, not sure if it's the most pretty.
  https://github.com/ernesst/ActivityTracker/blob/master/Main.qml line 45.

@jujubala1997 said in Help the community:

Where do I start? What are barriers that impede UT from spreading? What should I learn in software to help the community?

Depends your area of interest and confort : community, system, porting, coding, Art etc... and you don't even need to be good or educated in that field, like me just learning by tweaking.

Python wise they are several possibilities :

• full applications : https://github.com/ernesst/ActivityTracker
• Wrapper : https://framagit.org/ernesst/MLS-for-Utouch / https://framagit.org/ernesst/gps-utouch-tracker

Python get integrated into QML via : https://github.com/thp/pyotherside

A very nice python lib would be great to integrate into Utouch : https://github.com/owncloud/pyocclient for Nextcloud/Owncloud.

Welcome in the community.

I've published the VPN editor app allowing to tune more setting.
this app + pivpn on the otherside works great

https://open-store.io/app/com.ubuntu.developer.pete-woods.vpn-editor

Thank you for the tutorial,

However there is still a critical bug flying aroung regarding the password which mostlikely will frustate users

https://github.com/ubports/ubuntu-touch/issues/46

The trick is described at the end of the first post.

The issue has been solve in the devel and will be released for the OTA3

You are seeing the Nextcloud online acocunt because you are on Devel or RC channel, so not everything is working ^^

Currently we fixed the Nextcloud online account credential, so an Nextcloud online account can be created. However we discovered that the calendar syncrhonization backend isn't enable yet.

The issue has been raised and being pickup by the maintainer.
https://github.com/ubports/sync-monitor/issues/4

We should be closed to have this running.

Ps : You can try the app Umark, which uses the Nextcloud online account.

Your fastboot seems locked,
look here to unlock it : https://forum.xda-developers.com/nexus-4/general/nexus-4-guide-unlock-bootloader-root-t2266654

1. What's the update related to Halium-Utouch ?
2. Do we have a copy of the official ubuntu touch documentation ? Design, develop. etc...
3. Update on the fundation ?
4. What about the latest mir release, what the plan related to it ?
5. What do you think about, allowing blog communication less official like ubuntu planet ? to talk about devel feature landings, tips on using touch etc.. ?

@AppLee
I think pure maps allows you to load a GPX for direction. Never tested it.

@normandc said in GPS tracking in Background - Trick:

@ernest
I only tested the script once during my trip. It seems that if the phone needs to be unlocked with a number, it prevents updating of FPS points when the screen is off.

To have the recording screen off, you have to enable with Tweak tool the option "Prevent suspend" for the terminal app.

To be honest I didn't spend much time on this, I had destinations to get to. Absolutely not your fault, but I still have an insanely hard time dealing with the terminal UI. Trying to scroll through it and use the side scrollbar is a near impossible task.

Check the new version, uploaded today, no more long list the screen is refreshed after each datapoint.
I've also add a sum-up calculation at the end :

GPX file Created : 1566872659557.gpx

    Length 2D: 0.004km
    Length 3D: 0.016km
    Moving time: 00:00:11
    Stopped time: 00:14:34
    Max speed: None
    Avg speed: 0m/s = 1km/h
    Total uphill: 3.3m
    Total downhill: 4.3m

Hello,

look at the bug list on mako,
https://github.com/ubports/ubports-touch/issues?q=is%3Aopen+is%3Aissue+label%3A"device%3A+mako"
If you juge it acceptable you can flash, but currently it's still considered experimental

All, in order to help, I've create a wrapper in python which scan wifi and gps position.

It's not the most userfriendly, but quite simple to use and can run in background too if the terminal is set for it.

Please test and let me know.
https://framagit.org/ernesst/MLS-for-Utouch/tree/master

Note :

• Upload to MLS is done automatically when the app is closed by a Ctrl+C and phone connected to internet.
• No parallel use with Unav or Activity Tracker test has been properly done yet
• Only tested with Nexus 5, if fail with other device, please create a bug.

If anybody know how to list cells tower around the device, please let me know. So far all the ofono script doesn't allow that

Further implementation : If this script is able to run in background without disturbing user apps, would be interesting to add a on/off button in the GPS menu.

@UniSuperBox

I'm amazed to be able to switch between edge and devel channel in 5 minutes... hop hop a small trial and bug reporting for 30 minutes then prior to sleep i switch back to devel for the next day.
I've the same feeling than when clickable got launched

Is there any though to ask Cannonical to send a message to all app publishers in order to inform them about openstore ?

FYI : https://bugs.launchpad.net/ubuntu/+source/ecryptfs-utils/+bug/1756840

Great,

I would add this link on the server side : https://ownyourbits.com/nextcloudpi/

And client side :
The app for bookmark : https://open-store.io/app/umarks.ernesst
and mention that the client mail, video call and music app are working smoothly with the phone.