something isn't working
In my main routine I have
xpt,ypt= m(lons[0:500],lats[0:500])
outlines=m.plot(xpt,ypt,'r-') #m is my basemap, outlines is a list of
size 1. Huh?
then in my update routine I have
counter=0
def update():
global counter
xpt,ypt=
m(lons[counter*500:(counter+1)*500],lats[counter*500:(counter+1)*500])
counter += 1
outlines[0].set_data(xpt,ypt)
canvas.draw_idle()
return True
but this produces strange results. After a few iterations the line
disappears completely. Is it wrong to use lists when I get xpt and ypt?
Mathew
Jeff Whitaker wrote:
> Mathew Yeates wrote:
>> Hi
>>
>> I see the example of updating a plot in
>> examples/animation/gtk_timeout.py where the 2 lines
>> ----
>> line.set_ydata(np.random.rand(10))
>> fig.canvas.draw_idle()
>> ----
>>
>>
>> What is the equivalent when I want to update a Basemap with new
>> latitudes and longitudes and I have done
>> m=Basemap(......)
>> m.plot(longitude_list,latitude_list)
>>
>> Thanks
>> Mathew
>>
>
> Mathew: The Basemap plot method returns a list of matplotlib Line2d
> objects which you can use just as in the example.
>
> -Jeff
>
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