[OSM-talk] JOSM on Raspberry pi 4

[John Whelan]

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, <jwhelan0112 at gmail.com 
> <mailto: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 <mailto:jwhelan0112 at gmail.com>
>>     *Sent: *21 December 2020 11:30 PM
>>     *To: *OpenStreetMap <mailto: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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>
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