Re: [Matplotlib-users] contour's clabels overlap each other in an ImageGrid
Hi,
I think this is partly because the current clabel implementation of
matpltolib does not correctly account the dpi setting. I opened a pull
request I think fix this problem. Please try that fix if you can.
https://github.com/matplotlib/matplotlib/pull/453
Otherwise, I think you can workaround this by using the default dpi
(72 or similar).
Regards,
-JJ
On Fri, Sep 2, 2011 at 11:28 PM, R. O'Gara ronog...@yahoo.com wrote:
Jae-Joon, thanks for your reply.
There is a combination of effects that make my contour labels placed in
unfortunate positions. Here is a self-contained example (somewhat different
from issue I originally explained, but illustrates the fact clabels are not
where I'd like them to be)
import numpy as np
import matplotlib as mpl
ff = 10
params = {
'text.usetex': True,
'axes.labelsize': ff,
'axes.fontsize': ff,
'legend.fontsize' : ff,
'xtick.labelsize' : ff,
'ytick.labelsize' : ff,
'figure.dpi': 150,
'figure.figsize' : [5,2],
}
mpl.rcParams.update(params)
import matplotlib.pyplot as plt
import matplotlib.gridspec as gridspec
gs = gridspec.GridSpec(1,2)
ax = plt.subplot(gs[0])
xi = np.linspace(0,0.4,100)
yi = np.linspace(0,0.4,100)
xx,yy = np.meshgrid(xi,yi)
zi = np.sin(5*xx*yy)
v = np.arange(0.0, 0.5, 0.1)
cplot = ax.contour(xi, yi, zi, v, linewidths=0.5, colors='k')
ax.clabel(cplot, v,
fontsize = 8,
inline=True,
fmt = %0.2f,
)
ax.axis([np.min(xi),np.max(xi),np.min(yi),np.max(yi)])
plt.show()
The end result is that contour labels are placed almost outside of the grid,
with most of the area in the center being blank. I am pretty sure it has to
do with the way rcParams are set, but I have no idea why. Params I do need to
set are text.usetex, figure.dpi, and figure.figsize. I am using matplotlib
1.0.1.
Thanks for your help,
- Original Message -
From: Jae-Joon Lee lee.j.j...@gmail.com
To: R. O'Gara ronog...@yahoo.com
Cc: matplotlib-users@lists.sourceforge.net
matplotlib-users@lists.sourceforge.net
Sent: Monday, August 22, 2011 11:56 PM
Subject: Re: [Matplotlib-users] contour's clabels overlap each other in an
ImageGrid
Can you post an simple self-contained script that reproduces your problem?
I just tried something similar but could not reproduces your problem.
Here is what I did,
Also, what version of matplotlb are you using?
Regards,
-JJ
import matplotlib.pyplot as plt
import numpy as np
from mpl_toolkits.axes_grid1 import ImageGrid
fig = plt.figure(1)
arr = np.arange(100).reshape((10, 10))
grid = ImageGrid(fig, 111, (2, 2))
cntr0 = grid[0].contour(arr)
cntr1 = grid[1].contour(arr)
cntr2 = grid[2].contour(arr)
cntr3 = grid[3].contour(arr)
plt.clabel(cntr0, manual=True)
plt.clabel(cntr1, manual=True)
plt.clabel(cntr2, manual=True)
plt.clabel(cntr3, manual=True)
On Thu, Aug 18, 2011 at 1:10 PM, R. O'Gara ronog...@yahoo.com wrote:
Hey guys,
I was hoping someone could provide a hint for how I should go about
correcting this. As you can see, locations for the inline labels for
contours in this image are unfortunately chosen, and they overlap with one
another. If I set manual to 'True' then I get this weird behavior
where I can only choose labels in the top left grid and nothing is shownin
any of the other grids.
I am using a 2x2 Image Grid (I get the same problem when using gridspec
instead of image grid), and loadingcontour data (2x2 array) from a file.
Thanks for your help,
Ron
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Re: [Matplotlib-users] contour's clabels overlap each other in an ImageGrid
Jae-Joon, thanks for your reply.
There is a combination of effects that make my contour labels placed in
unfortunate positions. Here is a self-contained example (somewhat different
from issue I originally explained, but illustrates the fact clabels are not
where I'd like them to be)
import numpy as np
import matplotlib as mpl
ff = 10
params = {
'text.usetex': True,
'axes.labelsize': ff,
'axes.fontsize': ff,
'legend.fontsize' : ff,
'xtick.labelsize' : ff,
'ytick.labelsize' : ff,
'figure.dpi': 150,
'figure.figsize' : [5,2],
}
mpl.rcParams.update(params)
import matplotlib.pyplot as plt
import matplotlib.gridspec as gridspec
gs = gridspec.GridSpec(1,2)
ax = plt.subplot(gs[0])
xi = np.linspace(0,0.4,100)
yi = np.linspace(0,0.4,100)
xx,yy = np.meshgrid(xi,yi)
zi = np.sin(5*xx*yy)
v = np.arange(0.0, 0.5, 0.1)
cplot = ax.contour(xi, yi, zi, v, linewidths=0.5, colors='k')
ax.clabel(cplot, v,
fontsize = 8,
inline=True,
fmt = %0.2f,
)
ax.axis([np.min(xi),np.max(xi),np.min(yi),np.max(yi)])
plt.show()
The end result is that contour labels are placed almost outside of the grid,
with most of the area in the center being blank. I am pretty sure it has to do
with the way rcParams are set, but I have no idea why. Params I do need to set
are text.usetex, figure.dpi, and figure.figsize. I am using matplotlib 1.0.1.
Thanks for your help,
- Original Message -
From: Jae-Joon Lee lee.j.j...@gmail.com
To: R. O'Gara ronog...@yahoo.com
Cc: matplotlib-users@lists.sourceforge.net
matplotlib-users@lists.sourceforge.net
Sent: Monday, August 22, 2011 11:56 PM
Subject: Re: [Matplotlib-users] contour's clabels overlap each other in an
ImageGrid
Can you post an simple self-contained script that reproduces your problem?
I just tried something similar but could not reproduces your problem.
Here is what I did,
Also, what version of matplotlb are you using?
Regards,
-JJ
import matplotlib.pyplot as plt
import numpy as np
from mpl_toolkits.axes_grid1 import ImageGrid
fig = plt.figure(1)
arr = np.arange(100).reshape((10, 10))
grid = ImageGrid(fig, 111, (2, 2))
cntr0 = grid[0].contour(arr)
cntr1 = grid[1].contour(arr)
cntr2 = grid[2].contour(arr)
cntr3 = grid[3].contour(arr)
plt.clabel(cntr0, manual=True)
plt.clabel(cntr1, manual=True)
plt.clabel(cntr2, manual=True)
plt.clabel(cntr3, manual=True)
On Thu, Aug 18, 2011 at 1:10 PM, R. O'Gara ronog...@yahoo.com wrote:
Hey guys,
I was hoping someone could provide a hint for how I should go about
correcting this. As you can see, locations for the inline labels for
contours in this image are unfortunately chosen, and they overlap with one
another. If I set manual to 'True' then I get this weird behavior
where I can only choose labels in the top left grid and nothing is shownin
any of the other grids.
I am using a 2x2 Image Grid (I get the same problem when using gridspec
instead of image grid), and loadingcontour data (2x2 array) from a file.
Thanks for your help,
Ron
--
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attachment: clabels.png--
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Re: [Matplotlib-users] contour's clabels overlap each other in an ImageGrid
Can you post an simple self-contained script that reproduces your problem? I just tried something similar but could not reproduces your problem. Here is what I did, Also, what version of matplotlb are you using? Regards, -JJ import matplotlib.pyplot as plt import numpy as np from mpl_toolkits.axes_grid1 import ImageGrid fig = plt.figure(1) arr = np.arange(100).reshape((10, 10)) grid = ImageGrid(fig, 111, (2, 2)) cntr0 = grid[0].contour(arr) cntr1 = grid[1].contour(arr) cntr2 = grid[2].contour(arr) cntr3 = grid[3].contour(arr) plt.clabel(cntr0, manual=True) plt.clabel(cntr1, manual=True) plt.clabel(cntr2, manual=True) plt.clabel(cntr3, manual=True) On Thu, Aug 18, 2011 at 1:10 PM, R. O'Gara ronog...@yahoo.com wrote: Hey guys, I was hoping someone could provide a hint for how I should go about correcting this. As you can see, locations for the inline labels for contours in this image are unfortunately chosen, and they overlap with one another. If I set manual to 'True' then I get this weird behavior where I can only choose labels in the top left grid and nothing is shownin any of the other grids. I am using a 2x2 Image Grid (I get the same problem when using gridspec instead of image grid), and loadingcontour data (2x2 array) from a file. Thanks for your help, Ron -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
