[Xastir] Maps

[Tim Billingsley]

Now that life has settled a bit.

tim at box2:~$ ls -al ~/.xastir/OSMtiles
ls: cannot access /home/tim/.xastir/OSMtiles: No such file or directory

Still no maps here, but all else is working great to the best of my
knowledge.

I tried doing a locate on OSMtiles
No success. I don't know what I missed or what I threw the wrench into, but
any advice/suggestions are appreciated.

73

On Fri, Jun 24, 2011 at 5:57 AM, Curt, WE7U <curt.we7u at gmail.com> wrote:

> On Fri, 24 Jun 2011, WE0Z wrote:
>
>  I have not gotten experienced enough to develop my own map library so I
>> rely of the Internet download from Osmerander. While I see it downloads the
>> tiles and paints the map and I realize it takes time to download and then it
>> caches maps every time it downloads new tiles.
>>
>> The question I have is those tiles that have been cached where do they go
>> as I cannot seem to find them and also if they are stored on the disk why
>> does it take so long to repaint the map from the disk? Is there something I
>> can do. I am running dual-core 32-bit with 2GB RAM.
>>
>
> I'm usually running 4GB dual-core 64-bit systems and the drawing takes
> about as long as I would expect it to for raster tiles.  I run very
> small-memory 32-bit systems on laptops for events and am generally still
> pleased with the map rendering time.  Often I'm running Shapefile maps
> instead on those machines 'cuz I don't always have internet access during an
> event.
>
> OSM tiles are saved in the "~/.xastir/OSMtiles/" directory.
>
> I don't know if any profiling has been done since the OSM code was written.
>  The codebase was profiled prior to that a couple of times, first the
> non-map code, then each individual map type.  It's possible that another
> round of profiling for the OSM code would benefit us.
>
> Anyone interesting in trying it:  There are notes near the end of the
> "INSTALL" file that detail how to profile the code.  The last time I
> profiled the map code I added a loop to the the map code so that it loaded
> each selected map 1000 times, then ran the profiler once per map type to
> determine which map code needed work.  Without that tweak it was difficult
> to see the map code in the profiling stats at all.
>
> BTW:  Regarding the note in my signature below:  The WE7U-WX server is down
> at the moment due to a problem on the server.  I'll try to get that back up
> after Field Day is over.
>
> --
> Curt, WE7U.        http://www.eskimo.com/~archer
> U.S. Weather Alerts:  Firenet.us, port 14580, filter "t/n e/WE7U-WX"
>
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