Re: [Matplotlib-users] a quick way to plot 3D surface with point coordination?
On 3/31/2010 10:40 PM, ericyosho wrote: > send x and y ranges to meshgrid > Does this mean you have the entire grid of points? In any case, you can get an array of your points as np.array([(x,y,z) for (x,y),z in d.iteritems()]) fwiw, Alan Isaac -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] bus error on os x 10.6
I'm using the prebuilt OS X dmg distribution of matplotlib with the mac python 2.6.4 installation on os x 10.6.3. I find that if I try to use savefig to pdf format, my program terminates with a bus error. There is no such error if I save to eps format. -gideon -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] a quick way to plot 3D surface with point coordination?
Hi, All,
I have a bunch of 3D points with coordinations in a dict
pointset = {
(x1,y1):z1,
(x2,y2):z2,
...
}
It seems I have to
1. fire a loop to change each item and convert the whole dictionary into arrays;
x = []
y = []
for i in pointset.items():
x.append(i[0][0])
y.append(i[0][1])
2. send x and y ranges to meshgrid
3. loop again to put z values into proper positions
4. use plot_surface()
Is there any quicker ways to do that?
And we know that for points with coordination, scatter must be the
simplest way to visualize them.
Is there any trick to convert a scatter graph into a surface picture directly?
Appreciation for any ideas.
Zhe Yao
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McGill University
Montreal, QC, Canada
H3A 2A7
zhe@mail.mcgill.ca
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Re: [Matplotlib-users] How to show separate legend for each subplot
On Wed, Mar 31, 2010 at 10:21 AM, Omer Khalid wrote:
> Hi Paul,
> Thanks for your prompt response. It did help :)
> But it seems that axis don't seems to accept title, xlable and ylable values
> any more. Any ideas on that?
If you're trying to use the functions plt.title() and plt.xlabel(),
they only work on the current axes object (basically, the most
recently created one). You'll want to try to use methods on the axes
themselves:
ax1.set_title('ax1 title')
ax1.set_xlabel('xlabel')
ax2.set_title('ax2 title')
ax2.set_xlabel('xlabel')
Ryan
> On Wed, Mar 31, 2010 at 17:43, wrote:
>>
>> From: Omer Khalid [mailto:omer.kha...@cern.ch]
>> Sent: Wednesday, March 31, 2010 6:20 AM
>> To: Matplotlib Users
>> Subject: [Matplotlib-users] How to show separate legend for each subplot
>>
>> Hi,
>>
>> I am wondering is there a way one could show a separate legend for each
>> subplot in a figure? I would really really appreciate any ideas on this.
>> `~'
>>
>> Omer,
>>
>> Give this a shot:
>> # code ->
>> import matplotlib.pyplot as pl
>> fig = pl.figure()
>> ax1 = fig.add_subplot(1,2,1)
>> ax2 = fig.add_subplot(1,2,2)
>>
>> ax1.plot([1,2], [3,4], 'ko', label='First Axes')
>> ax2.plot([2,3], [4,5[, 'bs', label='Second Axes')
>>
>> ax1.legend()
>> ax2.legend()
>> # <- code
>>
>> There's also an example in the Examples section of the MPL website:
>>
>> http://matplotlib.sourceforge.net/examples/pylab_examples/legend_demo3.html
>>
>> Hope that helps,
>> -paul
>
>
> --
> Download Intel® Parallel Studio Eval
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Re: [Matplotlib-users] How to show separate legend for each subplot
Hi Paul, Thanks for your prompt response. It did help :) But it seems that axis don't seems to accept title, xlable and ylable values any more. Any ideas on that? Cheers Omer On Wed, Mar 31, 2010 at 17:43, wrote: > From: Omer Khalid [mailto:omer.kha...@cern.ch] > Sent: Wednesday, March 31, 2010 6:20 AM > To: Matplotlib Users > Subject: [Matplotlib-users] How to show separate legend for each subplot > > Hi, > > I am wondering is there a way one could show a separate legend for each > subplot in a figure? I would really really appreciate any ideas on this. > `~' > > Omer, > > Give this a shot: > # code -> > import matplotlib.pyplot as pl > fig = pl.figure() > ax1 = fig.add_subplot(1,2,1) > ax2 = fig.add_subplot(1,2,2) > > ax1.plot([1,2], [3,4], 'ko', label='First Axes') > ax2.plot([2,3], [4,5[, 'bs', label='Second Axes') > > ax1.legend() > ax2.legend() > # <- code > > There's also an example in the Examples section of the MPL website: > http://matplotlib.sourceforge.net/examples/pylab_examples/legend_demo3.html > > Hope that helps, > -paul > -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] How to show last value on the line
From: Omer Khalid [mailto:omer.kha...@cern.ch] Sent: Wednesday, March 31, 2010 6:14 AM To: Matplotlib Users Subject: [Matplotlib-users] How to show last value on the line Hi, I have produced number of charts in my research thesis. On any given chart, there are number of lines. I would like to display the last value on each line to show at which precise value it's ending. Thanks, Omer Omer, Give something like this a shot: http://matplotlib.sourceforge.net/examples/pylab_examples/annotation_demo.html Remember that in python you can easily access the last element of an array (x) with x[-1]. -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] How to show separate legend for each subplot
From: Omer Khalid [mailto:omer.kha...@cern.ch] Sent: Wednesday, March 31, 2010 6:20 AM To: Matplotlib Users Subject: [Matplotlib-users] How to show separate legend for each subplot Hi, I am wondering is there a way one could show a separate legend for each subplot in a figure? I would really really appreciate any ideas on this. `~' Omer, Give this a shot: # code -> import matplotlib.pyplot as pl fig = pl.figure() ax1 = fig.add_subplot(1,2,1) ax2 = fig.add_subplot(1,2,2) ax1.plot([1,2], [3,4], 'ko', label='First Axes') ax2.plot([2,3], [4,5[, 'bs', label='Second Axes') ax1.legend() ax2.legend() # <- code There's also an example in the Examples section of the MPL website: http://matplotlib.sourceforge.net/examples/pylab_examples/legend_demo3.html Hope that helps, -paul -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] How to show separate legend for each subplot
Hi, I am wondering is there a way one could show a separate legend for each subplot in a figure? I would really really appreciate any ideas on this. Thanks, Omer -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] How to show last value on the line
Hi, I have produced number of charts in my research thesis. On any given chart, there are number of lines. I would like to display the last value on each line to show at which precise value it's ending. Thanks, Omer -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] permille sign in labels
On Wed, 24 Mar 2010 10:14:29 -0400 Michael Droettboom wrote: > You can use Unicode. > > ylabel(u'\u2030') > > http://www.unicode.org/charts/charindex.html > > Mike Degree Celsius u'\u2103' doesn't work. /usr/local/lib64/python2.4/site.packages/matplotlib/mathtext.py:722: MathTextWarning: Unrecognized symbol '\u2103'. Substituting with a dummy symbol. How can I resolve the problem ? Nils -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] How to save file in to image in desired resolution in matplotlib?
On Wednesday 31 March 2010 09:24:10 yogesh karpate wrote:
> Dear All,
>I am using one image of 235X130 and plotting the curve on
> it, now when i save it it goes in the resoltuion of 800X600,
> I want to keep the resolution intact.What can be done for that to keep the
> resolution same?
> I am using
> savefig('/home/jaguar/Softwares/Development/Python/bunty.png')
> Thanks in advance!
> Regards
> Yogesh
Hi Yogesh,
You can adjust the resolution by changing the figure size and the dpi in
savefig.
Keyword of figure:
*figsize* width x height in inches; defaults to rc figure.figsize
Keyword of savefig:
*dpi*: [ None | scalar > 0 ]
The resolution in dots per inch. If *None* it will default to
the value ``savefig.dpi`` in the matplotlibrc file.
e.g.
import matplotlib
matplotlib.use('Agg')
from matplotlib import pyplot as plt
# aim: 235X130
fig = plt.figure(figsize=(23.5, 13.0))
ax = plt.axes([0.0, 0.0, 1.0, 1.0])
ax.plot([1, 2, 4], lw=5)
ax.set_xticks([])
ax.set_yticks([])
fig.savefig('test.png', dpi=10)
Kind regards,
Matthias
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[Matplotlib-users] How to save file in to image in desired resolution in matplotlib?
Dear All,
I am using one image of 235X130 and plotting the curve on it,
now when i save it it goes in the resoltuion of 800X600,
I want to keep the resolution intact.What can be done for that to keep the
resolution same?
I am using
savefig('/home/jaguar/Softwares/Development/Python/bunty.png')
Thanks in advance!
Regards
Yogesh
--
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