I had a bug in my code, when I fixed it I can now see the lines.
If there is a better way to do what I'm doing, and love to hear it.




Mathew Yeates wrote:
> Any help appreciated
>
> I am displaying a line on a map ala
> --------------
> m=Basemap(  .... )
> xpt,ypt= m([],[])
> outlines=m.plot(xpt,ypt,'r-')
> -----------------
> and then in an update routine I do
>
> ----------------
> def update(newxpts,newypts):
>     outlines[0].set_data(newxpst,newypts)
> -----------------------
>
> This works fine but now I want to add additional lines. I tried
>
> --------------------
> m=Basemap(  .... )
> xpt,ypt= m([],[])
> outlines=m.plot(xpt,ypt,'r-')
> slitlines=[]
> for i in range(0,500):
>     slitlines.append(m.plot([],[],'b-'))
> ------------------------
>
> and
>
> ------------------------
> def update(newxpts,newypts,newslitx,newlity):
>     outlines[0].set_data(newxpst,newypts)
>      for i in 
> range(0,500):slitlines[i][0].set_data([startx[i],endx[i]],[starty[i],endy[i]])
> -------------------------
>
> but this doesn't work. Clearly I'm doing something wrong.
> Whats the best way to do this?
>
> Thanks
> Mathew
>          
>
>
>    
>    
>    
>
>
>
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