matplotlib-users Mailing List for matplotlib

On Tue, Feb 12, 2013 at 5:09 AM, mameghani <ra...@ma...> wrote:
> Does anyone know if the following error message is a matplotlib bug or is
> it
> me making a mistake?
> Is there an correct/alternative way to remove (or replace) text? Thank you,
> Raphael
>
> from matplotlib.figure import Figure
> fig = Figure()
> caption = fig.suptitle("test")
> caption.remove()
>
> Traceback (most recent call last):
> File "<pyshell#6>", line 1, in <module>
> caption.remove()
> File "C:\Programme\Python27\lib\site-packages\matplotlib\artist.py",
> line 134, in remove
> raise NotImplementedError('cannot remove artist')
> NotImplementedError: cannot remove artist
>
>
>
Heh, strange... it looks like most artist objects don't actually define a
remove function. I suppose you could do "fig._suptitle = None" in the
meantime, though.
Ben Root

Thank you for your ideas, I leave the correct code to plot trajectories of any object, in my case I have drawn the trajectories of convective storms.
 1. # --- Construimos el mapa ---
 2.
 3. import numpy as np
 4. from mpl_toolkits.basemap import Basemap
 5. import matplotlib.pyplot as plt
 6. from PIL import *
 7. fig = plt.figure(figsize=(12,12))
 8.
 9. ax = fig.add_axes([0.1,0.1,0.8,0.8])
 10.
 11. m = Basemap(projection='cyl', llcrnrlat=12, urcrnrlat=35,llcrnrlon=-120, urcrnrlon=-80, resolution='c', area_thresh=1000.)
 12.
 13. m.bluemarble()
 14. m.drawcoastlines(linewidth=0.5)
 15. m.drawcountries(linewidth=0.5)
 16. m.drawstates(linewidth=0.5)
 17.
 18. # --- Dibujamos paralelos y meridianos ---
 19.
 20. m.drawparallels(np.arange(10.,35.,5.),labels=[1,0,0,1])
 21. m.drawmeridians(np.arange(-120.,-80.,5.),labels=[1,0,0,1])
 22. m.drawmapboundary(fill_color='aqua')
 23.
 24. # --- Abrimos el archivo que contiene los datos ---
 25.
 26. import pandas as pd
 27.
 28. df = pd.read_csv('scm-2004.csv')
 29. for evento, group in df.groupby(['evento']):
 30. latitude = group.lat.values
 31. longitude = group.lon.values
 32. x,y = m(longitude, latitude)
 33. plt.plot(x,y,'y-',linewidth=2 )
 34. plt.xlabel('Longitud')
 35. plt.ylabel('Latitud')
 36. plt.title('Trayectorias de Sistemas Convectivos 2004')
 37.
 38.
 39.
 40. plt.savefig('track-2004.jpg', dpi=100)
With the above code, I get the desired figure. 60 paths drawn on the map of México.
I have only one last question: how could indicate the start of each of the storms, someone has an idea how I can do this?

Hi List,
I wonder whether anybody has tried to draw the following idea with a sankey
diagram (but if you are aware of another way to draw the following, I am
open to suggestions):
I have several systems which are all linked so that part of the outputs of
each of the systems becomes part of the inputs of each of the others. So,
each system exchanges 2 flows with each of the other systems (an output
which becomes the other's input and vice-verse). This implies that some of
the flows will have to cross.
I tried many combinations to connect the flows to each other but I did not
manage to connect them all. In a 3 systems diagram, I managed at best to
connect 2 single flows: one from the 2nd diagram to the 1st and one from
the third to the second. The problem is that, no matter which order I gave
to the flows, I had never been able to connect both input and output
between any sub-diagram (maybe because matplotlib.sankey does not
automatically connect the flows when they have to cross?)
you can find the diagrams that I managed to draw here:
https://dl.dropbox.com/u/45960790/World/sankeys.7z
I would appreciate any help to connect all the remaining flows.
I think that this could be solved if it was allowed to explicitly state
more than one flow to connect but I have no clue whether it is possible to
implement:
Currently (as I have understood it), one can only specify a single "prior"
diagram and a single flow to be connected. So it would be nice to:
-- declare several flows to "connect" to the "prior" diagram; and also
-- declare several "prior" diagrams for which several flows could be
connected.
I guess this would be the easiest way to connect all flows from the
sub-diagrams.
Of course, this presupposes that crossing the flows is allowed. In case it
is not, can matplotlib.sankey be hacked to allow that?
Thanks a lot,
Aleix

My temporary solution is to clear the figure via clf() and to recreate the
plot without the elements I do not want any more.
--
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Does anyone know if the following error message is a matplotlib bug or is it
me making a mistake? 
Is there an correct/alternative way to remove (or replace) text? Thank you,
Raphael 
from matplotlib.figure import Figure 
fig = Figure() 
caption = fig.suptitle("test") 
caption.remove() 
Traceback (most recent call last): 
 File "<pyshell#6>", line 1, in <module> 
 caption.remove() 
 File "C:\Programme\Python27\lib\site-packages\matplotlib\artist.py", 
line 134, in remove 
 raise NotImplementedError('cannot remove artist') 
NotImplementedError: cannot remove artist 
--
View this message in context: http://matplotlib.1069221.n5.nabble.com/Removing-text-from-a-figure-tp40424.html
Sent from the matplotlib - users mailing list archive at Nabble.com.