Hello,

I'm just starting with python, and I'm trying develop a widget that
shows my position on a map, and updates it as new position information
comes in.
I found some examples with tk (pyGPS), but I want to use wxPython.
Furthermore, this is to use in a racecar (track the car position as it
goes around the circuit), so I don't need to use some big database of
the world (like basemap in the matlibplot module); I can draw the map
form aerial pictures (from Google earth) as a vector graphic, or I
could also do a few laps and use that data to draw the map.

Can someone give me some pointers on how to do this?
Specifically, I don't know:
- How I should build the window that draws the map: is it a picture
display? (I've gone through the simple text editor example, and looked
at demos)

- How do I update the position on the track? Do I draw a dot, delete
it, and then redraw it? (I get GPS position data every second)

- I found some examples (in the pyGPS/basemap examples) on how to
convert the lat/long to x,y coords, but how do I draw a dot on the map
with this (hopefully an example is out there..)


Thanks!
Alex
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