[Xastir] POSM (Portable OpenStreetMap) for APRS

[Kurt]

On a Debian 8 "Jessie" on a single CPU ARM "pi like" Pocket CHIP device (https://getchip.com/pages/chip) takes 2 minutes 20 seconds to call up an old Cloudmade map of my state Illinois.  Has a 279mb footprint in the 3gb available storage.I wish a solution along those lines could be pursued in the future.  A simple drop-in mapset along the lines of APRS droid with the 2.3gb offline mapset that's available.If one doesn't have the skills to reduce map data, it at least gives them a starting point.  The Tiger and Cloudmade sets got me started 9 years ago.
I had help from the group to reduce geo.pdfs and even though startup is cpu intense, an old quad core laptop is pretty decent.  I display the Cloudmade or Tiger along withthe geo.tiffs and it's a pretty decent display.  Kurt KC9LDH

      From: Jason KG4WSV <kg4wsv at gmail.com>
 To: Xastir - APRS client software discussion <xastir at lists.xastir.org> 
 Sent: Wednesday, August 3, 2016 9:13 AM
 Subject: Re: [Xastir] POSM (Portable OpenStreetMap) for APRS
   
Cool project.

This looks great for disaster/emergency situations.  A bit of overkill for
standalone APRS operator, maybe.

I suspect the whole Pi question will come down to IO performance, which it
doesn't have. A NUC is already decently low power and it has very
respectable performance, CPU and IO.  If you want to go lower power than
that, look at something like an Nvidia Jetson TK1 - 4+1 ARM cores, GPU,
SATA, mini-PCIe, gig ethernet.

-Jason
kg4wsv
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