Thank you for the process.
Cheerio John
James wrote on 2020-12-21 19:15:
wget https://josm.openstreetmap.de/josm-latest.jar
java -jar josm-latest.jar
in a terminal
On Mon., Dec. 21, 2020, 7:13 p.m. John Whelan, <jwhelan0...@gmail.com
<mailto:jwhelan0...@gmail.com>> wrote:
I don't know enough about the pi to know where to copy it to.
Getting the latest .jar isn't a problem.
Thanks John
James wrote on 2020-12-21 19:11:
https://josm.openstreetmap.de/josm-latest.jar
java -jar josm-latest.jar
On Mon., Dec. 21, 2020, 7:10 p.m. John Whelan,
<jwhelan0...@gmail.com <mailto:jwhelan0...@gmail.com>> wrote:
It seems to load from "sudo apt-get install josm" but it is
version 14760. thank you Martin Bone you tube. I'm not too
sure where to download the new .jar file to get it to a more
recent version. So technically it will work. The big question
then becomes is it useful? Low power but needs a screen. Can
we leverage it in anyway? I'm thinking if it gets into
schools it might be useful but if it needs a more powerful
machine than the school might purchase can we nudge up the
specs in someway? I know you can use a smartphone but JOSM is
a bit more powerful and you can grab a bit of osm compress it
then load it up on the pi. Not real time but in areas where
there is little activity a 3 or 4 day old file might well be
good enough. I'm thinking Africa here. Solar panel into a
powerbank, run the pi from a powerbank. On a slightly larger
scale solar panel into an instant pot with battery, gives you
enough power to run a pi as well. Instant pots have been run
from solar with battery, the 3 quart pot requires a lower
power level. Can someone come up with a mixture that would
work? Thanks Cheerio John
Oliver Simmons wrote on 2020-12-21 18:48:
You’ll want to turn as much rendering off in JOSM as you can.
Mainly:
1. Disable “Draw boundaries of downloaded area” (This is a
big performance hit for some reason)
2. OSM Data -> Options that affect drawing performance -
disable both antialiasing options.
3. OSM Data -> ditto - “Hide labels when dragging the map”
may also help.
AFAIK other options won’t make much difference, those are
just the main three.
You may also want to experiment with styles, some (such as
“Advanced lane & road attributes” will put a lot more load
on rendering due to their complexity and the transparent parts.
With the RAM & speed upgrades on the Pi4, downloading a lot
of data shouldn’t be much of an issue, only if you try to
look at it all at once.
―
- Oliver Simmons [https://goodclover.xyz]
*From: *John Whelan <mailto:jwhelan0...@gmail.com>
*Sent: *21 December 2020 11:30 PM
*To: *OpenStreetMap <mailto:talk@openstreetmap.org>
*Subject: *[OSM-talk] JOSM on Raspberry pi 4
Has anyone tried it? My thoughts run along the lines of the
pi 400 which has 4 gigs of memory might be interesting,
there are pi4s with 8 gigs available.
If so how do you install it and run it.
Thanks John
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