Tom Russo wrote:
On Sat, Feb 16, 2008 at 11:50:21AM -0600, we recorded a bogon-computron collision of
the <[EMAIL PROTECTED]> flavor, containing:
I have a laptop with a few state shp files that I downloaded from
xastir.tamu.edu a while back... Everthing works fine except when I have
weather radar enabed and it downloads every 300 to 500 seconds... When I
have the map zoom out to a large zoom level (e.g. 1300+) my laptop just
cycles through geting weather radar and then reloading the maps off the
DVDROM... Then almost immediately, starts again... It spend so much time
worrying about the maps, APRS just gets lost in the process... Is there a
configuration that can just download the weather radar data and not have to
update the map every time?
Not with shapefiles. This is the downside to having Xastir render your maps
from dvdrom each time.
As I see it you have a couple options:
1) Decrease the refresh rate of the weather maps by editing the .geo file
2) Decrease the number of maps you have rendered at high zooms
3) Split your shapefiles up by attributes (i.e. major roads in one file,
street-level detail in another) and tell xastir to skip those in the
more detailed files when at high zooms
4) If you're not zooming and panning around a lot, you might consider
pre-rendering a static map by turning off all of the station display stuff
and taking a snapshot --- it'll save a .png and a .geo that you can move
to your maps directory and use as a static raster image. Use that as
your base layer at high zooms (telling xastir not to render shapefiles at
that zoom), and overlay the weather on that instead. It will be very fast,
because it won't be doing any calculation at all. It will be ugly at
any zoom level other than the one you created it at, though.
Thanks Tom,
I think a static map may be the best option... Should have thought of
that on my own... Thanks for the advise...
-Joe
KA3NAM
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