Re: [Matplotlib-users] Broken clabel manual=True in 1.3.0

2013-09-29 Thread Eric Firing 
On 2013/09/28 11:15 AM, Felix Patzelt wrote:
> Dear all,
>
> manually placing labels when using clabel seems to be broken in Matplotlib 
> 1.3.0.
>
> I'm on OS X 10.8.5 and have Matplotlib installed via macports. Today I 
> updated all installed ports and thereby got the new version of Matplotlib. 
> Now manually placing cline labels creates weird artefacts. I attached a demo 
> script at the bottom and uploaded a screenshot at 
> http://i.imgur.com/u6BLcRB.png . As you can see there is also a depreciation 
> warning. Now I downgraded to Matoplotlib 1.2.1 again (keeping all other 
> updates in place) and the problem is gone. I currently have very little time 
> for bug hunting and therefore will just stay away from updates for a while. 
> Maybe someone can figure out what's going wrong.
>
> Best,
> Felix
>

Felix,

Thanks for the report.  I have turned it into a Github issue: 
https://github.com/matplotlib/matplotlib/issues/2475.

Eric


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Re: [Matplotlib-users] Broken clabel manual=True in 1.3.0

2013-09-29 Thread Goyo 
2013/9/28 Felix Patzelt :
> Dear all,
>
> manually placing labels when using clabel seems to be broken in Matplotlib 
> 1.3.0.
>
> I'm on OS X 10.8.5 and have Matplotlib installed via macports. Today I 
> updated all installed ports and thereby got the new version of Matplotlib. 
> Now manually placing cline labels creates weird artefacts. I attached a demo 
> script at the bottom and uploaded a screenshot at 
> http://i.imgur.com/u6BLcRB.png . As you can see there is also a depreciation 
> warning. Now I downgraded to Matoplotlib 1.2.1 again (keeping all other 
> updates in place) and the problem is gone. I currently have very little time 
> for bug hunting and therefore will just stay away from updates for a while. 
> Maybe someone can figure out what's going wrong.
>

FWIW, I can confirm this issue in Ubuntu Raring with the development
version of matplotlib packaged in ppa:takluyver/matplotlib-daily.

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[Matplotlib-users] Broken clabel manual=True in 1.3.0

2013-09-28 Thread Felix Patzelt 
Dear all,

manually placing labels when using clabel seems to be broken in Matplotlib 
1.3.0.

I'm on OS X 10.8.5 and have Matplotlib installed via macports. Today I updated 
all installed ports and thereby got the new version of Matplotlib. Now manually 
placing cline labels creates weird artefacts. I attached a demo script at the 
bottom and uploaded a screenshot at http://i.imgur.com/u6BLcRB.png . As you can 
see there is also a depreciation warning. Now I downgraded to Matoplotlib 1.2.1 
again (keeping all other updates in place) and the problem is gone. I currently 
have very little time for bug hunting and therefore will just stay away from 
updates for a while. Maybe someone can figure out what's going wrong.

Best,
Felix


##
# demo.py
##

import numpy as np
from matplotlib import mlab
import pylab as plt

# Broken manual labelling demo
# Adapted from pylab_examples example code: contour_demo.py
delta = 0.025
x = np.arange(-3.0, 3.0, delta)
y = np.arange(-2.0, 2.0, delta)
X, Y = np.meshgrid(x, y)
Z1 = mlab.bivariate_normal(X, Y, 1.0, 1.0, 0.0, 0.0)
Z2 = mlab.bivariate_normal(X, Y, 1.5, 0.5, 1, 1)
# difference of Gaussians
Z = 10.0 * (Z2 - Z1)

plt.figure()
CS = plt.contour(X, Y, Z)
plt.clabel(CS, inline=1, fontsize=10)
plt.title('Simplest default with labels')
plt.show()

plt.figure()
CS = plt.contour(X, Y, Z)
plt.clabel(CS, inline=1, fontsize=10, manual=True)
plt.title('Position labels manually')
plt.show()


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