Mathew Yeates wrote: > 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?
Mathew: It's one line, so the list has one Line2D object. > > 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 Don't really understand what you're trying to do here, so I can't comment. -Jeff > > > > > > 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 >> > > -- Jeffrey S. Whitaker Phone : (303)497-6313 NOAA/OAR/CDC R/PSD1 FAX : (303)497-6449 325 Broadway Boulder, CO, USA 80305-3328 ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
