[Matplotlib-users] Problem with text bounding box

[Jakob G. <ga...@il...>]

Recently, I switched from matplotlib 0.99 to 1.0.1 and unfortunately discovered
that my text scaling script stopped working properly. The script scales the given text
to fit into the current figure.

A quick example of what I'm doing (works in 0.99, but not in 1.0.1 and 1.1.1rc):
import matplotlib.pyplot as plt
plt.ion()
fig = plt.figure(1, (6,8), dpi=72)
fig.add_axes([0,0,1,1])
txt1 = plt.text(0.5,0.5,'foobar',horizontalalignment='center',verticalalignment='center')
plt.draw()
# compute width of figure in points and divide by txt1 bounding box width
sf1 = 6*72./txt1.cached.items()[0][1][1][0][1][0]
txt1.set_size(txt1.get_size()*sf1)
plt.draw()

The problem is related to the fact that starting from mpl 1.0.1, the txt1.cached dictionary contains 
information of all text objects present rather than only of the specific object.
I guess this behavior is intended, however this way it is rather complicated to derive the bounding
box of the specific text object without cycling over the whole dictionary.

Is there a different way to achieve a fitted text object?

Thanks,
br Jakob