[Xastir] Script to cache some maps

[Jason KG4WSV]

On Mon, Nov 16, 2015 at 1:58 PM, David Ranch <xastir at trinnet.net> wrote:

> Ok.. so this is was part of the detail that I'm not familiar with and why
> I asked what that 11GB of data really consists of.
>

IIRC it is OSM vector data for some or all of the united states.

My stash of vector data is 100k and/or 24k topo data, National Atlas data,
and about 10 states worth of the old TIGER shapefiles, and it totals about
12Gb.



> I agree it's not practical to store, maintain, and update TBs of data but
> is that what we're really looking at here?  For me, I would think I'd like
> to have:
>


Well, if we're talking about a hypothetical online tile cache for xastir
users, yes.  _you_ want Silicon Valley.  _I_ want Alabama, north Georgia,
middle and eastern Tennessee, and the Florida panhandle.  Basically
everyone wants their home turf in full detail so we're effectively talking
about the whole US.

I don't recall details on how big the tiles are, but when tile servers
first came online I set up a 50Gb VM and started caching at all zoom
levels.  It became clear it was impractical.

-Jason
kg4wsv