Re: [Matplotlib-users] Savefig('file.pdf') error with latex custom font
On Thu, Oct 23, 2008 at 7:04 AM, Jouni K. Seppänen [EMAIL PROTECTED] wrote:
David Krapohl [EMAIL PROTECTED]
writes:
I am getting an error with savefig and pdf when I try to used matplotlib
with latex font rendering (attached below). In etc/matplotlibrc, I set
text.latex.preamble : \usepackage{MinionPro},
\renewcommand{\sfdefault}{Myriad-LF}
It seems that the dviread backend does not find a specific *.vf,
MinionPro-It--lcdfj.vf to be specific,
file that is not needed in my opinion. Any ideas how to solve that?
Is that a commercial font? What exact files are installed when you
install that font in your texmf tree? Can dvipdfm/dvipdfmx/dvipdft
create a pdf file from a dvi file that uses this font?
It is an adobe font that is bundled with the Acrobat Reader. It is an otf
font that was converted with cfftot1 to *.pfb postscript font. Font
metrics and scripts can be downloaded at
http://developer.berlios.de/projects/minionpro/
I use it very often and so far I didn't have problems.
From your backtrace, it looks like dviread fails to parse a tfm file:
File /usr/lib/python2.5/site-packages/matplotlib/dviread.py, line
398,
in __init__
for char in range(0, max(tfm.width)) ]
ValueError: max() arg is an empty sequence
Yes, with --verbose-debug-annoying I can see that it stops at:
find_tex_file: MinionPro-It--lcdfj.vf -
Followed by the same error message as in the first post. Unfortunately the
vf-file is not there but the tfm file. As far as I know does this file
describe the dotless-j for whatever reasons. So I think this particular file
is not very important for math output.
--
Jouni K. Seppänen
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[Matplotlib-users] imread() and binary PNGs
Howdy, I noticed that MPL's imread() command, when applied to binary (1-bit grayscale) PNGs does some serious mangling. Anyone know what's going on, or is it just that only RGBA PNG's are supported? Thanks, David - 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] ANN: matplotlib website 1.0
ok. It is way better now but still: http://validator.w3.org/check?uri=http%3A%2F%2Fmatplotlib.sourceforge.net%2Fcharset=(detect+automatically)doctype=Inlinegroup=0 hum I should spend some time on this because: http://validator.w3.org/check?uri=http%3A%2F%2Fmatplotlib.sourceforge.net%2Fgallery.htmlcharset=(detect+automatically)doctype=Inlinegroup=0user-agent=W3C_Validator%2F1.591 but this gallery is so nice... Xavier This has now been fixed in SVN. index.html is the only page that includes hand-written HTML. If you see any errors of this nature on other pages, please file bugs with Sphinx and/or docutils. Cheers, Mike Xavier Gnata wrote: Looks great but there are too many errors: http://validator.w3.org/check?uri=http%3A%2F%2Fmatplotlib.sourceforge.net%2Fcharset=(detect+automatically)doctype=Inlinegroup=0 I'm not a geek and I do not care about w3c small warnings but it would be so nice to have a xhtml compliant website (as close as possible) From an artistic point of view, I would put more emphasis on the screenshot (pylab purpose is to produce *very* nice images...) xavier We've been working behind the scenes on a new documentation system for matplotlib, which integrates the web site, API documentation and PDF guide into a single source of sphinx/rest documents which are easier to maintain and extend, hopefully leading to better and more up-to-date docs. We went live with the new site yesterday: http://matplotlib.sf.net so check it out and let us know if something is broken or missing. We don't have everything that was on the old site (some stuff from the FAQ, what's new and user's guide has not been ported over) but we do have should be current, searchable, indexed and cross-linked. Thanks to Darren Dale who spear-headed the effort to use the sphinx documentation, and to the developers who have contributed, especially Michael Droettboom, who has developed several nice sphinx extensions to do inheritance diagrams, syntax highlighting of ipython sessions, and inline plotting. As an example we can include plots in our API documentation, see http://matplotlib.sourceforge.net/api/axes_api.html#matplotlib.axes.Axes.acorr We embed these plots with a plot directive that generates the figures from external code at documentation build time, which guarantees that the example code you see in the docs generate the figures you see in the docs. For example, in the acorr docstring, all we have to do is:: **Example:** .. plot:: ../mpl_examples/pylab_examples/xcorr_demo.py and the figure and source code links automagically appear in the docs. Because some of these extensions are generally useful, Michael, Fernando and I have been working on a sphinx_template which contains the template of a sphinx documentation project with these extensions in place, so people who want to get started using sphinx (the official documentation system for python, numpy, ipython and matplotlib) can do so more easily. Right now it is available in svn svn co https://matplotlib.svn.sourceforge.net/svnroot/matplotlib/trunk/py4science/examples/sphinx_template2 and see the README in the checkout directory. Michael also did a talk on matplotlib's use of sphinx and the sphinx template at the last scipy conference. We're still waiting for the videos of the talks to be posted (can someone poke someone?) but you can see the talk PDF from the proceedings here: http://conference.scipy.org/proceedings/SciPy2008/paper_6/ 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 - 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
Re: [Matplotlib-users] dynamic basemap
John [H2O] wrote:
Hello,
I'm creating a web application that will take user input from a javascript
map to give me bounding coordinates (i.e. urcrnrlat, urcrnrlon, llcrnrlat,
llcrnrlon) and possibly a switch for polar projection. Other than that I
have no further information. Which projection is the most suitable to handle
anything from a 'global' plot to a zoom say over a state? I don't see the
zoom being too tight, but global projections are likely. I personally prefer
Equal Area, hence right now I'm working with 'aeqd', but I seem to have
problems if the plot is global with that projection.
Just looking for advice, opinions, and ideally examples if anyone has
created a similar function / module to use in a web environment.
Thanks!
-john
John: Sounds like you need one of the global cylindrical projections,
such as cylindrical equidistant ('cyl'), miller ('mill') or mercator
('merc'). In the svn version, you also have Gall Stereographic
('gall'). See
http://matplotlib.sourceforge.net/basemap/doc/html/users/mapsetup.html
for examples. Unfortunately, none of them are equal-area. Mollweide
('moll') is a global equal-area projection, but it's only global (you
can't specify a domain that isn't global). For the polar option, I
suggest polar lambert azimuthal equal-area
(http://matplotlib.sourceforge.net/basemap/doc/html/users/plaea.html).
The user can specify whether he/she wants the south or north polar
aspect, and the latitude of the outer edge.
-Jeff
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Re: [Matplotlib-users] imread() and binary PNGs
I'm not aware of that problem. It should convert any PNG implicitly to our native RGBA format. Can you provide a PNG file that illustrates the breakage? Mike David Warde-Farley wrote: Howdy, I noticed that MPL's imread() command, when applied to binary (1-bit grayscale) PNGs does some serious mangling. Anyone know what's going on, or is it just that only RGBA PNG's are supported? Thanks, David - 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 -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA - 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] list of tuples vs tuple of lists
Hi, I use the API of matplotlib and have a basic problem: Up to now I am used to gather my data into a list of tuples. But matplotlib uses serveral lists instead. Example: me: [(date1, count1), (date2, count2), ...] matplotlib: ax.plot_date(dates, counts) Finally I use something like this quite often: method([item[0] for item in items], [item[1] for item in items]) But I think thats to much looping. That's my personal problem, but I think a more pythonic API would be nice... Thomas -- Thomas Guettler, http://www.thomas-guettler.de/ E-Mail: guettli (*) thomas-guettler + de - 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] ANN: matplotlib website 1.0
Fixed. These errors were all in new content. Any comments on the content? ... :) Xavier Gnata wrote: ok. It is way better now but still: http://validator.w3.org/check?uri=http%3A%2F%2Fmatplotlib.sourceforge.net%2Fcharset=(detect+automatically)doctype=Inlinegroup=0 hum I should spend some time on this because: http://validator.w3.org/check?uri=http%3A%2F%2Fmatplotlib.sourceforge.net%2Fgallery.htmlcharset=(detect+automatically)doctype=Inlinegroup=0user-agent=W3C_Validator%2F1.591 but this gallery is so nice... Xavier This has now been fixed in SVN. index.html is the only page that includes hand-written HTML. If you see any errors of this nature on other pages, please file bugs with Sphinx and/or docutils. Cheers, Mike Xavier Gnata wrote: Looks great but there are too many errors: http://validator.w3.org/check?uri=http%3A%2F%2Fmatplotlib.sourceforge.net%2Fcharset=(detect+automatically)doctype=Inlinegroup=0 I'm not a geek and I do not care about w3c small warnings but it would be so nice to have a xhtml compliant website (as close as possible) From an artistic point of view, I would put more emphasis on the screenshot (pylab purpose is to produce *very* nice images...) xavier We've been working behind the scenes on a new documentation system for matplotlib, which integrates the web site, API documentation and PDF guide into a single source of sphinx/rest documents which are easier to maintain and extend, hopefully leading to better and more up-to-date docs. We went live with the new site yesterday: http://matplotlib.sf.net so check it out and let us know if something is broken or missing. We don't have everything that was on the old site (some stuff from the FAQ, what's new and user's guide has not been ported over) but we do have should be current, searchable, indexed and cross-linked. Thanks to Darren Dale who spear-headed the effort to use the sphinx documentation, and to the developers who have contributed, especially Michael Droettboom, who has developed several nice sphinx extensions to do inheritance diagrams, syntax highlighting of ipython sessions, and inline plotting. As an example we can include plots in our API documentation, see http://matplotlib.sourceforge.net/api/axes_api.html#matplotlib.axes.Axes.acorr We embed these plots with a plot directive that generates the figures from external code at documentation build time, which guarantees that the example code you see in the docs generate the figures you see in the docs. For example, in the acorr docstring, all we have to do is:: **Example:** .. plot:: ../mpl_examples/pylab_examples/xcorr_demo.py and the figure and source code links automagically appear in the docs. Because some of these extensions are generally useful, Michael, Fernando and I have been working on a sphinx_template which contains the template of a sphinx documentation project with these extensions in place, so people who want to get started using sphinx (the official documentation system for python, numpy, ipython and matplotlib) can do so more easily. Right now it is available in svn svn co https://matplotlib.svn.sourceforge.net/svnroot/matplotlib/trunk/py4science/examples/sphinx_template2 and see the README in the checkout directory. Michael also did a talk on matplotlib's use of sphinx and the sphinx template at the last scipy conference. We're still waiting for the videos of the talks to be posted (can someone poke someone?) but you can see the talk PDF from the proceedings here: http://conference.scipy.org/proceedings/SciPy2008/paper_6/ 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 - 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 -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA
Re: [Matplotlib-users] list of tuples vs tuple of lists
You could use the (admittedly inscrutable) unzip technique: ax.plot_date(*zip(*items)) See this blog post for explanation: http://paddy3118.blogspot.com/2007/02/unzip-un-needed-in-python.html If you use Numpy arrays, of course, you could use slicing, which, IMHO, is clearer: items = numpy.asarray(items) ax.plot_date(items[:,0], items[:,1]) Mike Thomas Guettler wrote: Hi, I use the API of matplotlib and have a basic problem: Up to now I am used to gather my data into a list of tuples. But matplotlib uses serveral lists instead. Example: me: [(date1, count1), (date2, count2), ...] matplotlib: ax.plot_date(dates, counts) Finally I use something like this quite often: method([item[0] for item in items], [item[1] for item in items]) But I think thats to much looping. That's my personal problem, but I think a more pythonic API would be nice... Thomas -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA - 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] interactive use?
Hi, I don't think this is possible - but I wanted to check in case I'm missing something. Is there a way of changing the appearance of the plot interactively? I'm thinking of things like dragging the position of a legend, right clicking to be able to insert a text box or access properties of the axes etc like with Matlab. The programmatic interface is great - but, as just happened, I often find myself trying to drag the legend out of the way by force of habit! Thanks, Robin - 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 to use the set_clip_path with the imshow function
This has now been fixed in SVN. See the example/pylab_examples/image_clip_path.py for usage. Mike Federico Milano wrote: Dear Mike, thanks a lot for the information. Best wishes, Federico Michael Droettboom wrote: Unfortunately, clip paths are not implemented for the Agg backend. Other backends (Ps, Pdf, Svg) may work, but I haven't tried that in a while. I've spent a few tries trying to come up with the magic Agg incantation to make this work. It's not really documented in Agg, but it should theoretically be possible. It would take someone probably to dig through the Agg source code and figure it out. Any volunteers? ;) Cheers, Mike Federico Milano wrote: Dear All, I am a new user of python and of matplotlib, so, please excuse me if I am asking a trivial question. I am trying to use the funciton imshow to plot a temperature map of the voltage levels of an electrical grid. After creating the grid data using meshgrid and griddata functions, imshow works nicely and fills up the whoe axes box. Since, I also have the border line of the electrical grid (in the form of a closed polygon coordinates), my next step is to clip the temperature map using this polygon as a patch. Thus, I have created a Path instance with the polygon coordinates, subsequently, a PathPatch instance, say patch. Finally, I call the imshow function using the Artist options clip_on=True and clip_path=patch. I was expecting that imshow would have filed up only the region inside the polygon, but imshow is still mapping the full figure axis box, i.e., the plots with and without the clip_path option are identical. What am I missing or doing wrong? Thank you very much in advance for any help, Best wishes, Federico - 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 -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA - 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] ANN: matplotlib website 1.0
I'll comment that the new site looks absolutely awesome. I've turned quite a few heads around here when I show people the new site and docs, especially the gallery. Great work guys! One question, how is the list of plotting commands on the main page generated? Is it just the pyplot API? Right now I know at the very least it does not list barbs as a plotting command. Ryan Michael Droettboom wrote: Fixed. These errors were all in new content. Any comments on the content? ... :) Xavier Gnata wrote: ok. It is way better now but still: http://validator.w3.org/check?uri=http%3A%2F%2Fmatplotlib.sourceforge.net%2Fcharset=(detect+automatically)doctype=Inlinegroup=0 hum I should spend some time on this because: http://validator.w3.org/check?uri=http%3A%2F%2Fmatplotlib.sourceforge.net%2Fgallery.htmlcharset=(detect+automatically)doctype=Inlinegroup=0user-agent=W3C_Validator%2F1.591 but this gallery is so nice... Xavier This has now been fixed in SVN. index.html is the only page that includes hand-written HTML. If you see any errors of this nature on other pages, please file bugs with Sphinx and/or docutils. Cheers, Mike Xavier Gnata wrote: Looks great but there are too many errors: http://validator.w3.org/check?uri=http%3A%2F%2Fmatplotlib.sourceforge.net%2Fcharset=(detect+automatically)doctype=Inlinegroup=0 I'm not a geek and I do not care about w3c small warnings but it would be so nice to have a xhtml compliant website (as close as possible) From an artistic point of view, I would put more emphasis on the screenshot (pylab purpose is to produce *very* nice images...) xavier We've been working behind the scenes on a new documentation system for matplotlib, which integrates the web site, API documentation and PDF guide into a single source of sphinx/rest documents which are easier to maintain and extend, hopefully leading to better and more up-to-date docs. We went live with the new site yesterday: http://matplotlib.sf.net so check it out and let us know if something is broken or missing. We don't have everything that was on the old site (some stuff from the FAQ, what's new and user's guide has not been ported over) but we do have should be current, searchable, indexed and cross-linked. Thanks to Darren Dale who spear-headed the effort to use the sphinx documentation, and to the developers who have contributed, especially Michael Droettboom, who has developed several nice sphinx extensions to do inheritance diagrams, syntax highlighting of ipython sessions, and inline plotting. As an example we can include plots in our API documentation, see http://matplotlib.sourceforge.net/api/axes_api.html#matplotlib.axes.Axes.acorr We embed these plots with a plot directive that generates the figures from external code at documentation build time, which guarantees that the example code you see in the docs generate the figures you see in the docs. For example, in the acorr docstring, all we have to do is:: **Example:** .. plot:: ../mpl_examples/pylab_examples/xcorr_demo.py and the figure and source code links automagically appear in the docs. Because some of these extensions are generally useful, Michael, Fernando and I have been working on a sphinx_template which contains the template of a sphinx documentation project with these extensions in place, so people who want to get started using sphinx (the official documentation system for python, numpy, ipython and matplotlib) can do so more easily. Right now it is available in svn svn co https://matplotlib.svn.sourceforge.net/svnroot/matplotlib/trunk/py4science/examples/sphinx_template2 and see the README in the checkout directory. Michael also did a talk on matplotlib's use of sphinx and the sphinx template at the last scipy conference. We're still waiting for the videos of the talks to be posted (can someone poke someone?) but you can see the talk PDF from the proceedings here: http://conference.scipy.org/proceedings/SciPy2008/paper_6/ 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 - 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
Re: [Matplotlib-users] ANN: matplotlib website 1.0
On Thu, Oct 23, 2008 at 9:53 AM, Ryan May [EMAIL PROTECTED] wrote: I'll comment that the new site looks absolutely awesome. I've turned quite a few heads around here when I show people the new site and docs, especially the gallery. Great work guys! One question, how is the list of plotting commands on the main page generated? Is it just the pyplot API? Right now I know at the very least it does not list barbs as a plotting command. Right now it is just manually generated and should cover the pyplot module and may be out of date. I started working on a set of tables, of all the commands in pylab, organized by the module they come from, with links to the docs (eg to the numpy docs for numpy commands) but haven't finished. If you would like to update anything missing from the table (doc/_templates/index.html) that would be great. 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] list of tuples vs tuple of lists
On Thu, Oct 23, 2008 at 6:35 AM, Michael Droettboom [EMAIL PROTECTED] wrote: You could use the (admittedly inscrutable) unzip technique: ax.plot_date(*zip(*items)) See this blog post for explanation: http://paddy3118.blogspot.com/2007/02/unzip-un-needed-in-python.html If you use Numpy arrays, of course, you could use slicing, which, IMHO, is clearer: items = numpy.asarray(items) ax.plot_date(items[:,0], items[:,1]) if items is a numpy array you can even do: pylab.plot(*items.T) Mike Thomas Guettler wrote: Hi, I use the API of matplotlib and have a basic problem: Up to now I am used to gather my data into a list of tuples. But matplotlib uses serveral lists instead. Example: me: [(date1, count1), (date2, count2), ...] matplotlib: ax.plot_date(dates, counts) Finally I use something like this quite often: method([item[0] for item in items], [item[1] for item in items]) But I think thats to much looping. That's my personal problem, but I think a more pythonic API would be nice... Thomas -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA - 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
[Matplotlib-users] GUI neutral animation example doesn't work with WxAgg/Wx
The GUI neutral animation example from the SciPy cookbook doesn't seem
to work for Wx or WxAgg backends. A plot window opens but nothing
happens. It appears to be some weird problem with ion on wx.
For example, the following code will run and immediately close:
plt.ion()
plt.plot(x, y)
plt.show()
After removing plt.ion(), a plot window is opened and the program
doesn't end until the window is closed (as expected).
If I use TkAgg or Qt4Agg (the only other GUI backends I have
installed) the examples (above and below) work as expected.
-Tony
Full Example:
#
import matplotlib
matplotlib.use('WxAgg')
import matplotlib.pyplot as plt
import numpy as np
plt.ion()
x = np.arange(0, 2*np.pi, 0.01)
line, = plt.plot(x, np.sin(x))
for i in np.arange(1, 20):
line.set_ydata(np.sin(x + i/10.0))
plt.draw()
#
PS. This seems to work the same on both trunk and 0.98.3.
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[Matplotlib-users] basemap with Python26
Hi I'm getting the traceback from mpl_toolkits.basemap import Basemap /home/myeates/lib/python2.6/site-packages/httplib2/__init__.py:44: DeprecationWarning: the sha module is deprecated; use the hashlib module instead import sha Traceback (most recent call last): File stdin, line 1, in module File /home/myeates/lib/python2.6/site-packages/mpl_toolkits/basemap/__init__.py, line 39, in module import _geoslib, pupynere, netcdftime File /home/myeates/lib/python2.6/site-packages/mpl_toolkits/basemap/pupynere.py, line 37, in module from dap.client import open as open_remote File /home/myeates/lib/python2.6/site-packages/dap/client.py, line 4, in module from dap.util.http import openurl File /home/myeates/lib/python2.6/site-packages/dap/util/http.py, line 3, in module import httplib2 File /home/myeates/lib/python2.6/site-packages/httplib2/__init__.py, line 717, in module class HTTPSConnectionWithTimeout(httplib.HTTPSConnection): AttributeError: 'module' object has no attribute 'HTTPSConnection' anyone know what this is about? 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] Matplotlib-users Digest, Vol 29, Issue 48
On Thu, 2008-10-23 at 13:34 +, Thomas Guettler wrote: Hi, I use the API of matplotlib and have a basic problem: Up to now I am used to gather my data into a list of tuples. But matplotlib uses serveral lists instead. Example: me: [(date1, count1), (date2, count2), ...] matplotlib: ax.plot_date(dates, counts) Finally I use something like this quite often: method([item[0] for item in items], [item[1] for item in items]) But I think thats to much looping. x=[(date1, count1), (date2, count2), ...] dates,counts=zip(*x) ax.plot_date(dates, counts) That's my personal problem, but I think a more pythonic API would be nice... afaik its nothing to do with the matplotlib api: better to ask this on the python channel where it features regularly Thomas -- Thomas Guettler, http://www.thomas-guettler.de/ E-Mail: guettli (*) thomas-guettler + de -- When you think of the long and gloomy history of man, you will find far more hideous crimes have been committed in the name of obedience than have been committed in the name of rebellion. C.P.Snow, Either-Or (1961) signature.asc Description: This is a digitally signed message part - 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] GUI neutral animation example doesn't work with WxAgg/Wx
On Thu, Oct 23, 2008 at 10:30 AM, Tony S Yu [EMAIL PROTECTED] wrote: The GUI neutral animation example from the SciPy cookbook doesn't seem to work for Wx or WxAgg backends. A plot window opens but nothing happens. It appears to be some weird problem with ion on wx. GUI neutral animation is not supported or recommended. I need to update the cookbook, but if you want to do it that would be great as I am short on time until next week. The examples in examples/animation are the recommended way: http://matplotlib.sourceforge.net/examples/user_interfaces/index.html I have spent some time working on abstracting the necessary parts, eg the idle handler, but have not completed this across interfaces. 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] ANN: matplotlib website 1.0
On Thu, Oct 23, 2008 at 10:51 AM, Ryan May [EMAIL PROTECTED] wrote: I've done it for barbs and I'll see if I notice anything else as time allows. Obviously I'm biased towards certain functionality. :) I'm guessing you guys have to do regenerate the docs and push them somewhere before any of this becomes live. Yes, but it's pretty easy. To build and update from the docs dir, I just do python make.py html sf I've pushed your changes out -- thanks! 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] re freshing plot in loop
My program runs through a loop and is supposed to re-plot the graph after each step (which includes a pause of 1 second). I can't get the plot to refresh. I wrote the following simple program which has the same problem. I tried both draw() nor f.canvas.draw() works. I'm running it from ipython -pylab A similar problem was encountered here: http://www.nabble.com/Plotting-loop-refuses-to-update-display-on-OS-X-td19818020.html but I still don't know what to do. ### teststuff.py import pylab import time def testRef(): f = pylab.figure() ax = pylab.gca() pylab.show() for x in range(10): ax.axhline(x) time.sleep(1) #pylab.draw() f.canvas.draw() testRef() -- View this message in context: http://www.nabble.com/refreshing-plot-in-loop-tp20122473p20122473.html Sent from the matplotlib - users mailing list archive at Nabble.com. - 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] interactive use?
On Thursday 23 October 2008 15:51:53 Robin wrote: Hi, I don't think this is possible - but I wanted to check in case I'm missing something. Is there a way of changing the appearance of the plot interactively? I'm thinking of things like dragging the position of a legend, right clicking to be able to insert a text box or access properties of the axes etc like with Matlab. The programmatic interface is great - but, as just happened, I often find myself trying to drag the legend out of the way by force of habit! Thanks, Robin Indeed this would be a terrific addition and enhancement to matplotlib Francois -- Ce message a été vérifié par MailScanner pour des virus ou des polluriels et rien de suspect n'a été trouvé. - 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] ANN: matplotlib website 1.0
John Hunter wrote: On Thu, Oct 23, 2008 at 10:51 AM, Ryan May [EMAIL PROTECTED] wrote: I've done it for barbs and I'll see if I notice anything else as time allows. Obviously I'm biased towards certain functionality. :) I'm guessing you guys have to do regenerate the docs and push them somewhere before any of this becomes live. Yes, but it's pretty easy. To build and update from the docs dir, I just do python make.py html sf I've pushed your changes out -- thanks! Thanks. Now, did I do something wrong, because the pyplot api page doesn't show the example I added to the barbs docstring. Ryan -- Ryan May Graduate Research Assistant School of Meteorology University of Oklahoma - 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] ANN: matplotlib website 1.0
Ryan May wrote: John Hunter wrote: On Thu, Oct 23, 2008 at 10:51 AM, Ryan May [EMAIL PROTECTED] wrote: I've done it for barbs and I'll see if I notice anything else as time allows. Obviously I'm biased towards certain functionality. :) I'm guessing you guys have to do regenerate the docs and push them somewhere before any of this becomes live. Yes, but it's pretty easy. To build and update from the docs dir, I just do python make.py html sf I've pushed your changes out -- thanks! Thanks. Now, did I do something wrong, because the pyplot api page doesn't show the example I added to the barbs docstring. It's probably just that John didn't rebuild matplotlib itself and then clean before republishing the docs. Your change works for me locally. Cheers, Mike -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA - 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] Savefig('file.pdf') error with latex custom font
David Krapohl [EMAIL PROTECTED] writes: From your backtrace, it looks like dviread fails to parse a tfm file: File /usr/lib/python2.5/site-packages/matplotlib/dviread.py, line 398, in __init__ for char in range(0, max(tfm.width)) ] ValueError: max() arg is an empty sequence Yes, with --verbose-debug-annoying I can see that it stops at: find_tex_file: MinionPro-It--lcdfj.vf - I was able to reproduce the problem, and have fixed the immediate problem, so you should no longer get an exception with the latest trunk version of matplotlib. However, the output seems to have some encoding problems. I will look into the encoding issue, but cannot promise any particular time frame for a solution. If using the Postscript backend and then converting to pdf is an option for you, it may be a workaround. -- Jouni K. Seppänen http://www.iki.fi/jks - 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] basemap with Python26?
yes, thats the problem. I need ssl Thx Mathew From: Jeff Whitaker [EMAIL PROTECTED] Sent: Thursday, October 23, 2008 10:01 AM To: Yeates, Mathew C Cc: matplotlib-users@lists.sourceforge.net Subject: Re: [Matplotlib-users] basemap with Python26? Yeates, Mathew C wrote: Hi I'm getting the traceback from mpl_toolkits.basemap import Basemap /home/myeates/lib/python2.6/site-packages/httplib2/__init__.py:44: DeprecationWarning: the sha module is deprecated; use the hashlib module instead import sha Traceback (most recent call last): File stdin, line 1, in module File /home/myeates/lib/python2.6/site-packages/mpl_toolkits/basemap/__init__.py, line 39, in module import _geoslib, pupynere, netcdftime File /home/myeates/lib/python2.6/site-packages/mpl_toolkits/basemap/pupynere.py, line 37, in module from dap.client import open as open_remote File /home/myeates/lib/python2.6/site-packages/dap/client.py, line 4, in module from dap.util.http import openurl File /home/myeates/lib/python2.6/site-packages/dap/util/http.py, line 3, in module import httplib2 File /home/myeates/lib/python2.6/site-packages/httplib2/__init__.py, line 717, in module class HTTPSConnectionWithTimeout(httplib.HTTPSConnection): AttributeError: 'module' object has no attribute 'HTTPSConnection' anyone what this is about? Mathew Mathew: I can't reproduce that with python 2.6 - I wonder perhaps if your python 2.6 is missing SSL support? Try this: Python 2.6 (trunk:66714:66715M, Oct 1 2008, 18:36:04) [GCC 4.0.1 (Apple Computer, Inc. build 5370)] on darwin Type help, copyright, credits or license for more information. import ssl import httplib dir(httplib) ['ACCEPTED', 'BAD_GATEWAY', 'BAD_REQUEST', 'BadStatusLine', 'CONFLICT', 'CONTINUE', 'CREATED', 'CannotSendHeader', 'CannotSendRequest', 'EXPECTATION_FAILED', 'FAILED_DEPENDENCY', 'FORBIDDEN', 'FOUND', 'FakeSocket', 'GATEWAY_TIMEOUT', 'GONE', 'HTTP', 'HTTPConnection', 'HTTPException', 'HTTPMessage', 'HTTPResponse', 'HTTPS', 'HTTPSConnection', 'HTTPS_PORT', 'HTTP_PORT', 'HTTP_VERSION_NOT_SUPPORTED', 'IM_USED', 'INSUFFICIENT_STORAGE', 'INTERNAL_SERVER_ERROR', 'ImproperConnectionState', 'IncompleteRead', 'InvalidURL', 'LENGTH_REQUIRED', 'LOCKED', 'LineAndFileWrapper', 'MAXAMOUNT', 'METHOD_NOT_ALLOWED', 'MOVED_PERMANENTLY', 'MULTIPLE_CHOICES', 'MULTI_STATUS', 'NON_AUTHORITATIVE_INFORMATION', 'NOT_ACCEPTABLE', 'NOT_EXTENDED', 'NOT_FOUND', 'NOT_IMPLEMENTED', 'NOT_MODIFIED', 'NO_CONTENT', 'NotConnected', 'OK', 'PARTIAL_CONTENT', 'PAYMENT_REQUIRED', 'PRECONDITION_FAILED', 'PROCESSING', 'PROXY_AUTHENTICATION_REQUIRED', 'REQUESTED_RANGE_NOT_SATISFIABLE', 'REQUEST_ENTITY_TOO_LARGE', 'REQUEST_TIMEOUT', 'REQUEST_URI_TOO_LONG', 'RESET_CONTENT', 'ResponseNotReady', 'SEE_OTHER', 'SERVICE_UNAVAILABLE', 'SWITCHING_PROTOCOLS', 'StringIO', 'TEMPORARY_REDIRECT', 'UNAUTHORIZED', 'UNPROCESSABLE_ENTITY', 'UNSUPPORTED_MEDIA_TYPE', 'UPGRADE_REQUIRED', 'USE_PROXY', 'UnimplementedFileMode', 'UnknownProtocol', 'UnknownTransferEncoding', '_CS_IDLE', '_CS_REQ_SENT', '_CS_REQ_STARTED', '_UNKNOWN', '__all__', '__builtins__', '__doc__', '__file__', '__name__', '__package__', 'error', 'mimetools', 'py3kwarning', 'responses', 'socket', 'ssl', 'test', 'urlsplit', 'warnings'] If the import ssl fails, you have your answer. In that case, there is probably not https support in httplib. -Jeff -- Jeffrey S. Whitaker Phone : (303)497-6313 Meteorologist FAX: (303)497-6449 NOAA/OAR/PSD R/PSD1Email : [EMAIL PROTECTED] 325 BroadwayOffice : Skaggs Research Cntr 1D-113 Boulder, CO, USA 80303-3328 Web: http://tinyurl.com/5telg - 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] ANN: matplotlib website 1.0
On Thu, Oct 23, 2008 at 11:44 AM, Michael Droettboom [EMAIL PROTECTED] wrote: It's probably just that John didn't rebuild matplotlib itself and then clean before republishing the docs. Your change works for me locally. I think the trick is I also have to touch the pymods_api.rst doc. I did install the latest mpl from src before building but it didn't work. So I am going to see if touching the rst doc helps. Yep -- just confirmed http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.barbs Unfortunately, I have to run catch a plane so I will not be able to followup for a while. 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] GUI neutral animation example doesn't work with WxAgg/Wx
On Oct 23, 2008, at 12:00 PM, John Hunter wrote: On Thu, Oct 23, 2008 at 10:30 AM, Tony S Yu [EMAIL PROTECTED] wrote: The GUI neutral animation example from the SciPy cookbook doesn't seem to work for Wx or WxAgg backends. A plot window opens but nothing happens. It appears to be some weird problem with ion on wx. GUI neutral animation is not supported or recommended. I need to update the cookbook, but if you want to do it that would be great as I am short on time until next week. I'd be happy to help, but I'm not sure what had you in mind. Sorry I'm still a student---I need guidance. ;) -Tony - 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] imread() and binary PNGs
On 23-Oct-08, at 4:43 PM, David Warde-Farley wrote:
Sure; see http://morrislab.med.utoronto.ca/~dwf/bin.png
In [12]: x = imread('bin.png'); imshow(x)
produces a colourful plot that bears no resemblance to the original.
Two other things:
a) PIL can read in these without incident; my work around has been to
open with PIL and manually read each bit into a dtype=bool numpy array.
b) I might add that what appears seems to be cyclic, making me think
that it's trying to read a few bytes for each pixel where in fact
there is only a single bit, and thus reading far less data than it's
expecting, and thus only has a few columns worth of pixels that is
somehow getting repeatedly referenced in the numpy array. This is all
just (mildly educated) guesswork though.
David
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Re: [Matplotlib-users] imread() and binary PNGs
David,
After playing around with this file and the various elements of
image.py, I've determined that the pil_to_array function in
matplotlib.image works just fine, so the place where the problem is
introduced in imread is the read_png function in matplotlib._png. So a
simpler work-around for this file than reading each bit into a bool
array yourself would be to import Image (PIL) and matplotlib.image to
call the pil_to_array function on an Image.open'd object directly:
import Image
import matplotlib.image as image
import pylab as p
x = image.pil_to_array(Image.open('bin.png')); p.imshow(x); p.show()
In the mean time, I'll see if the devel list has some better insight
on the issue.
Josh
On Thu, Oct 23, 2008 at 1:52 PM, David Warde-Farley [EMAIL PROTECTED] wrote:
On 23-Oct-08, at 4:43 PM, David Warde-Farley wrote:
Sure; see http://morrislab.med.utoronto.ca/~dwf/bin.png
In [12]: x = imread('bin.png'); imshow(x)
produces a colourful plot that bears no resemblance to the original.
Two other things:
a) PIL can read in these without incident; my work around has been to
open with PIL and manually read each bit into a dtype=bool numpy array.
b) I might add that what appears seems to be cyclic, making me think
that it's trying to read a few bytes for each pixel where in fact
there is only a single bit, and thus reading far less data than it's
expecting, and thus only has a few columns worth of pixels that is
somehow getting repeatedly referenced in the numpy array. This is all
just (mildly educated) guesswork though.
David
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