[Matplotlib-users] zorder seems to cause problems when embed python in latex files
LaTeX can accept embedded Python code with a python.sty file. This is handy to dynamically generate plots with Matplotlib for a LaTeX slide presentation. I successfully embedded lots of matplotlib plot code into my slides and then had problems with zorder. For some reason zorder seems to mess up the footer of my Beamer/LaTeX slides. (For some reason zorder setting make the footer shrink in size.) Is there any weirdness or side effects about zorder I should be aware of that would explain this? Chris - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] displaying lat/lon in toolbar for Baemap
Hi Is there a way to display the latitude and longitude of the cursor when displaying a Basemap? Mathew - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] how do I get my axis
Okay, I've gotten this far. I have a Figure and I think I can change the formatting of the values displayed in the toolbar by setting taking the X axis and setting the function format_xdata to something of my own (something that computes lat/lon). Similar idea for the Y axis. So, given my figure, how do I get the X and Y axis? All I see is gca(). But how can I get both? Using fig.get_axes() I only got 1 axis. Anybody know? Mathew - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] how do I get my axis
Hi Mathew, 2008/10/13 Mathew Yeates [EMAIL PROTECTED] Okay, I've gotten this far. I have a Figure and I think I can change the formatting of the values displayed in the toolbar by setting taking the X axis and setting the function format_xdata to something of my own (something that computes lat/lon). Similar idea for the Y axis. So, given my figure, how do I get the X and Y axis? All I see is gca(). But how can I get both? Using fig.get_axes() I only got 1 axis. I think this is a terminology issue: the axis objects returned by gca() or in the list returned by get_axes() incorporate both the 'axes' in the sense of x and y axes. With the single result of gca() you can get at both the x and y axes. For example: import matplotlib.pyplot as plt ax = plt.gca() ax.set_xlims(xmin=-1) ax.set_ylims(ymax=0) ax.format_xdata = ... # if this is how you use this bit - haven't needed to change these myself ax.format_ydata = ... I hope that helps, Angus. -- AJC McMorland Post-doctoral research fellow Neurobiology, University of Pittsburgh - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] how do I get my axis
Thanks Angus. I tried this out ... it works once and only once! BTW, The correct thing to do is res=fig.gca() res.fmt_xdata=foo() #instead of format_xdata res.fmt_ydata=foo() although, like I said, it only first for the first event. Somehow res.fmt_xdata is getting set back to None Mathew Angus McMorland wrote: Hi Mathew, 2008/10/13 Mathew Yeates [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Okay, I've gotten this far. I have a Figure and I think I can change the formatting of the values displayed in the toolbar by setting taking the X axis and setting the function format_xdata to something of my own (something that computes lat/lon). Similar idea for the Y axis. So, given my figure, how do I get the X and Y axis? All I see is gca(). But how can I get both? Using fig.get_axes() I only got 1 axis. I think this is a terminology issue: the axis objects returned by gca() or in the list returned by get_axes() incorporate both the 'axes' in the sense of x and y axes. With the single result of gca() you can get at both the x and y axes. For example: import matplotlib.pyplot as plt ax = plt.gca() ax.set_xlims(xmin=-1) ax.set_ylims(ymax=0) ax.format_xdata = ... # if this is how you use this bit - haven't needed to change these myself ax.format_ydata = ... I hope that helps, Angus. -- AJC McMorland Post-doctoral research fellow Neurobiology, University of Pittsburgh - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Fwd: how do I get my axis
And forwarded to the list... forgot to hit reply to all. -- Forwarded message -- From: Angus McMorland [EMAIL PROTECTED] Date: 2008/10/13 Subject: Re: [Matplotlib-users] how do I get my axis To: Mathew Yeates [EMAIL PROTECTED] 2008/10/13 Mathew Yeates [EMAIL PROTECTED] Thanks Angus. I tried this out ... it works once and only once! BTW, The correct thing to do is res=fig.gca() res.fmt_xdata=foo() #instead of format_xdata res.fmt_ydata=foo() I've just dug around in some old code, now that you've shown me this example to jog my memory. Perhaps you want to try res.fmt_xdata=foo (i.e. no brackets, so you pass the function, not the result of the function). Angus. although, like I said, it only first for the first event. Somehow res.fmt_xdata is getting set back to None Mathew Angus McMorland wrote: Hi Mathew, 2008/10/13 Mathew Yeates [EMAIL PROTECTED] mailto: [EMAIL PROTECTED] Okay, I've gotten this far. I have a Figure and I think I can change the formatting of the values displayed in the toolbar by setting taking the X axis and setting the function format_xdata to something of my own (something that computes lat/lon). Similar idea for the Y axis. So, given my figure, how do I get the X and Y axis? All I see is gca(). But how can I get both? Using fig.get_axes() I only got 1 axis. I think this is a terminology issue: the axis objects returned by gca() or in the list returned by get_axes() incorporate both the 'axes' in the sense of x and y axes. With the single result of gca() you can get at both the x and y axes. For example: import matplotlib.pyplot as plt ax = plt.gca() ax.set_xlims(xmin=-1) ax.set_ylims(ymax=0) ax.format_xdata = ... # if this is how you use this bit - haven't needed to change these myself ax.format_ydata = ... I hope that helps, Angus. -- AJC McMorland Post-doctoral research fellow Neurobiology, University of Pittsburgh -- AJC McMorland Post-doctoral research fellow Neurobiology, University of Pittsburgh -- AJC McMorland Post-doctoral research fellow Neurobiology, University of Pittsburgh - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] how do I get my axis
Angus pointed out that I need to do res.fmt_xdata=foo Duh. I was evaluating foo. But this still doesn't work! The default formatting operation is still called. Mathew Mathew Yeates wrote: Thanks Angus. I tried this out ... it works once and only once! BTW, The correct thing to do is res=fig.gca() res.fmt_xdata=foo() #instead of format_xdata res.fmt_ydata=foo() although, like I said, it only first for the first event. Somehow res.fmt_xdata is getting set back to None Mathew Angus McMorland wrote: Hi Mathew, 2008/10/13 Mathew Yeates [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Okay, I've gotten this far. I have a Figure and I think I can change the formatting of the values displayed in the toolbar by setting taking the X axis and setting the function format_xdata to something of my own (something that computes lat/lon). Similar idea for the Y axis. So, given my figure, how do I get the X and Y axis? All I see is gca(). But how can I get both? Using fig.get_axes() I only got 1 axis. I think this is a terminology issue: the axis objects returned by gca() or in the list returned by get_axes() incorporate both the 'axes' in the sense of x and y axes. With the single result of gca() you can get at both the x and y axes. For example: import matplotlib.pyplot as plt ax = plt.gca() ax.set_xlims(xmin=-1) ax.set_ylims(ymax=0) ax.format_xdata = ... # if this is how you use this bit - haven't needed to change these myself ax.format_ydata = ... I hope that helps, Angus. -- AJC McMorland Post-doctoral research fellow Neurobiology, University of Pittsburgh - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] how do I get my axis
On Mon, Oct 13, 2008 at 2:27 PM, Mathew Yeates [EMAIL PROTECTED] wrote: Angus pointed out that I need to do res.fmt_xdata=foo Duh. I was evaluating foo. But this still doesn't work! The default formatting operation is still called. This is the correct usage -- so if it is not working you need to post a complete example. Perhaps you are not setting the correct Axes instance? JDH - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Does anyone have an updated version of SentinelMap?
Hi, I'm trying to plot some data where certain values are marked by a sentinel, as per the Cookbook example: http://www.scipy.org/Cookbook/Matplotlib/Plotting_Images_with_Special_Values However, that code is fairly old, and doesn't work. A version that worked as of ~18 months ago was posted to the list: http://www.nabble.com/Re:-Trying-p8831162.html but it fails when I try to use it with matplotlib 0.98.3 and imshow. Does anyone have an updated version? Thanks, -michael -- Michael Lerner, Ph.D. IRTA Postdoctoral Fellow Laboratory of Computational Biology NIH/NHLBI 5635 Fishers Lane, Room T909, MSC 9314 Rockville, MD 20852 (UPS/FedEx/Reality) Bethesda MD 20892-9314 (USPS) http://www.umich.edu/~mlerner - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Does anyone have an updated version of SentinelMap?
Michael Lerner wrote: Hi, I'm trying to plot some data where certain values are marked by a sentinel, as per the Cookbook example: http://www.scipy.org/Cookbook/Matplotlib/Plotting_Images_with_Special_Values However, that code is fairly old, and doesn't work. A version that worked as of ~18 months ago was posted to the list: http://www.nabble.com/Re:-Trying-p8831162.html but it fails when I try to use it with matplotlib 0.98.3 and imshow. Does anyone have an updated version? Thanks, -michael Michael, In the mpl examples directory there is a script that might be directly relevant: examples/pylab_examples/image_masked.py Eric - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] how do I get my axis
The reason it wasn't working is that my function foo didn't have the right signature.fmt_xdata takes 1 argument. I have no idea why I didn't see an exception displayed. It's working now that I have def foo(x) pass Mathew John Hunter wrote: On Mon, Oct 13, 2008 at 2:27 PM, Mathew Yeates [EMAIL PROTECTED] wrote: Angus pointed out that I need to do res.fmt_xdata=foo Duh. I was evaluating foo. But this still doesn't work! The default formatting operation is still called. This is the correct usage -- so if it is not working you need to post a complete example. Perhaps you are not setting the correct Axes instance? JDH - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Calling xlim makes x tick labels format get lost
El dom, 12-10-2008 a las 13:22 -1000, Eric Firing escribió:
Goyo wrote:
Hi all,
I'm plotting time series and using a custom format for x tick labels
because I want to see both date and time. But calling xlim makes the
default format return -- only dates or only times, it depends on the
displayed interval.
I can get my preferred format back by calling set_major_formatter again,
but this is inconvenient for interactive use.
I wonder if there is a better way for changing x limits while keeping
tick labels format unchanged.
I'm using matplotlib 0.98.3
Thanks
Goyo
Sample code -- you need a combination of python shell and matplotlib GUI
which allows for interactive use in order to get this working as
expected:
from matplotlib import pyplot
from matplotlib import dates
from datetime import datetime, timedelta
from numpy import random
pyplot.ion()
# create data
dstart = datetime(2008, 1, 1, 0, 0)
dend = datetime(2008, 1, 5, 23, 50)
delta = timedelta(minutes=10)
x = dates.drange(dstart, dend, delta)
y = random.random_sample(len(x))
# plot data
pyplot.plot(x, y)
# format x tick labels
axis = pyplot.gca()
fig = pyplot.gcf()
axis.xaxis.set_major_formatter(dates.DateFormatter('%Y-%b-%d %H:%M'))
fig.autofmt_xdate()
# draw the figure
pyplot.draw()
--
Look at the tick labels, they show both date and time even if you zoom
and pan using the GUI.
Now if I want to look at the second day:
dstart = datetime(2008, 1, 1, 0, 0)
dend = datetime(2008, 1, 1, 23, 50)
pyplot.xlim(dstart, dend)
And the format has changed.
I don't see this problem using ipython -pylab with mpl from svn on
linux, gtkagg backend. What version, backend, and platform are you using?
matplotlib 0.98.3-3ubuntu1~ppa1 from Benjamin Drung's ppa
(http://ppa.launchpad.net/bdrung/ubuntu) on Ubuntu Hardy.
It was the standard python shell and TKAgg, but I get the same result
with ipython -pylab and GTKAgg. Indeed the format change can be
documented:
print axis.xaxis.get_major_formatter()
pyplot.xlim(dstart, dend)
print axis.xaxis.get_major_formatter()
The first print:
matplotlib.dates.DateFormatter instance at 0xb6e2462c
and the second:
matplotlib.dates.AutoDateFormatter instance at 0x884dc4c
I did some debugging and realized that xaxis.units is None after
plotting, so xlim triggers a call to xaxis.set_units which sets the
default formatter (and units, whatever it means).
If I set my formatter again, xaxis.units is not None anymore but still
xaxis._update_axisinfo sets the default formatter.
Anyway I worked around this by writing my own version of xlim which
first saves the formatter, then sets xlim and sets the saved formatter
again.
Goyo
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Re: [Matplotlib-users] Figures missing from matplotlib documentation?
On Oct 9, 2008, at 12:55 PM, John Hunter wrote: On Thu, Oct 9, 2008 at 2:40 PM, Zane Selvans [EMAIL PROTECTED] wrote: I too often feel like I'm just hacking my way around in Matplotlib, without understanding how it is actually supposed to be used (i.e. how it was designed to work). Is there an architectural overview floating around somewhere that I'm not aware of? Check out http://matplotlib.sourceforge.net/doc/html/users/ artists.html That's just what I was looking for. However, unfortunately there appears to be some problem with the generation of the figures which are supposed to be embedded within that documentation - they're all appearing as nothing but blank white spaces, both in Firefox 3.0.3 on OS X 10.5.5, and when I download the files and view them with other programs. Do other people see this problem? Thanks again, Zane -- Zane Selvans Amateur Earthling [EMAIL PROTECTED] 303/815-6866 http://zaneselvans.org PGP Key: 55E0815F - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Calling xlim makes x tick labels format get lost
Goyo wrote:
El dom, 12-10-2008 a las 13:22 -1000, Eric Firing escribió:
Goyo wrote:
Hi all,
I'm plotting time series and using a custom format for x tick labels
because I want to see both date and time. But calling xlim makes the
default format return -- only dates or only times, it depends on the
displayed interval.
I can get my preferred format back by calling set_major_formatter again,
but this is inconvenient for interactive use.
I wonder if there is a better way for changing x limits while keeping
tick labels format unchanged.
I'm using matplotlib 0.98.3
Thanks
Goyo
Sample code -- you need a combination of python shell and matplotlib GUI
which allows for interactive use in order to get this working as
expected:
from matplotlib import pyplot
from matplotlib import dates
from datetime import datetime, timedelta
from numpy import random
pyplot.ion()
# create data
dstart = datetime(2008, 1, 1, 0, 0)
dend = datetime(2008, 1, 5, 23, 50)
delta = timedelta(minutes=10)
x = dates.drange(dstart, dend, delta)
y = random.random_sample(len(x))
# plot data
pyplot.plot(x, y)
# format x tick labels
axis = pyplot.gca()
fig = pyplot.gcf()
axis.xaxis.set_major_formatter(dates.DateFormatter('%Y-%b-%d %H:%M'))
fig.autofmt_xdate()
# draw the figure
pyplot.draw()
--
Look at the tick labels, they show both date and time even if you zoom
and pan using the GUI.
Now if I want to look at the second day:
dstart = datetime(2008, 1, 1, 0, 0)
dend = datetime(2008, 1, 1, 23, 50)
pyplot.xlim(dstart, dend)
And the format has changed.
I don't see this problem using ipython -pylab with mpl from svn on
linux, gtkagg backend. What version, backend, and platform are you using?
matplotlib 0.98.3-3ubuntu1~ppa1 from Benjamin Drung's ppa
(http://ppa.launchpad.net/bdrung/ubuntu) on Ubuntu Hardy.
It was the standard python shell and TKAgg, but I get the same result
with ipython -pylab and GTKAgg. Indeed the format change can be
documented:
print axis.xaxis.get_major_formatter()
pyplot.xlim(dstart, dend)
print axis.xaxis.get_major_formatter()
The first print:
matplotlib.dates.DateFormatter instance at 0xb6e2462c
and the second:
matplotlib.dates.AutoDateFormatter instance at 0x884dc4c
I did some debugging and realized that xaxis.units is None after
plotting, so xlim triggers a call to xaxis.set_units which sets the
default formatter (and units, whatever it means).
If I set my formatter again, xaxis.units is not None anymore but still
xaxis._update_axisinfo sets the default formatter.
Anyway I worked around this by writing my own version of xlim which
first saves the formatter, then sets xlim and sets the saved formatter
again.
Goyo
I know some work was done on units support since 0.98.3; given that I am
not seeing the problem when I try your original example with svn mpl, I
hope and suspect that this problem has in fact already been solved.
Eric
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Re: [Matplotlib-users] Figures missing from matplotlib documentation?
Zane Selvans wrote: On Oct 9, 2008, at 12:55 PM, John Hunter wrote: On Thu, Oct 9, 2008 at 2:40 PM, Zane Selvans [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: I too often feel like I'm just hacking my way around in Matplotlib, without understanding how it is actually supposed to be used (i.e. how it was designed to work). Is there an architectural overview floating around somewhere that I'm not aware of? Check out http://matplotlib.sourceforge.net/doc/html/users/artists.html That's just what I was looking for. However, unfortunately there appears to be some problem with the generation of the figures which are supposed to be embedded within that documentation - they're all appearing as nothing but blank white spaces, both in Firefox 3.0.3 on OS X 10.5.5, and when I download the files and view them with other programs. Do other people see this problem? Yes, something is broken. I don't know how to fix it, though. Eric Thanks again, Zane -- Zane Selvans Amateur Earthling [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] 303/815-6866 http://zaneselvans.org PGP Key: 55E0815F - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
