[OSM-talk] JOSM on Raspberry pi 4

[Chuck Sanders]

You can use the latest jar right off of the JOSM home page to test:

https://josm.openstreetmap.de/

Since Java is platform independent, it's the same jar for all platforms.

On Mon, Dec 21, 2020, 19:10 John Whelan <jwhelan0112 at 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 <jwhelan0112 at gmail.com>
> *Sent: *21 December 2020 11:30 PM
> *To: *OpenStreetMap <talk at 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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