[OSM-talk] JOSM on Raspberry pi 4

[John Whelan]

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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