[Matplotlib-users] Contour/Contourf misunderstanding?
Hi All, I am trying to create a contour map with matplotlib. I have modified the source code for the contour sample which comes with the matplotlib 0.98.3 online documentation: I am using the "contour(X, Y, Z, V)" API call and, as the docs say: """ contour(X,Y,Z,V) draw contour lines at the values specified in sequence V """ I have specified a 20-elements vector in V, buit I still only see 6 contours being drawn, namely the ones at the values: [-1.0, -0.5, 0.0, 0.5, 1.0, 1.5] I attach my small sample to the message. Am I doing something worng in my call to contour? Why I am unable to see the 20 contour I specified in my vector V? Another related problem is with contourf: if I modify the attached sample to use contourf and clabel, I get this error: Traceback (most recent call last): File "E:\MyProjects\prova143.py", line 24, in plt.clabel(CS, fontsize=9, inline=1) File "C:\Python25\lib\site-packages\matplotlib\pyplot.py", line 1736, in clabel ret = gca().clabel(*args, **kwargs) File "C:\Python25\lib\site-packages\matplotlib\axes.py", line 6027, in clabel return CS.clabel(*args, **kwargs) File "C:\Python25\lib\site-packages\matplotlib\contour.py", line 161, in clabel self.labelCValueList = np.take(self.cvalues, self.labelIndiceList) File "C:\Python25\lib\site-packages\numpy\core\fromnumeric.py", line 85, in take return take(indices, axis, out, mode) IndexError: index out of range for array This is in Windows XP, Python 2.5.2, matplotlib 0.98.3, numpy 1.2.0. Thank you for your suggestions. Andrea. "Imagination Is The Only Weapon In The War Against Reality." http://xoomer.alice.it/infinity77/ # CODE START #!/usr/bin/env python import matplotlib import numpy as np import matplotlib.mlab as mlab import matplotlib.pyplot as plt delta = 0.025 x = np.arange(-3.0, 3.0, delta) y = np.arange(-2.0, 2.0, delta) X, Y = np.meshgrid(x, y) Z1 = mlab.bivariate_normal(X, Y, 1.0, 1.0, 0.0, 0.0) Z2 = mlab.bivariate_normal(X, Y, 1.5, 0.5, 1, 1) # difference of Gaussians Z = 10.0 * (Z2 - Z1) V = np.linspace(np.min(np.min(Z)), np.max(np.max(Z)), 20) print V # And you can manually specify the colors of the contour plt.figure() CS = plt.contourf(X, Y, Z, V=V) plt.clabel(CS, fontsize=9, inline=1) plt.show() # CODE END -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Contour/Contourf misunderstanding?
Hi Mauro & All, On Wed, Dec 10, 2008 at 10:32 AM, Mauro Cavalcanti wrote: > Dear Andrea, > > Greetings. I have tried your script here. > > 2008/12/10 Andrea Gavana <[EMAIL PROTECTED]>: >> I attach my small sample to the message. Am I doing something worng in >> my call to contour? Why I am unable to see the 20 contour I specified >> in my vector V? > > But you can. Simply change the line below to: >> CS = plt.contourf(X, Y, Z, V=V) > >> CS = plt.contourf(X, Y, Z, V) > (I did not understand the reason behind the "V=V" in the argument list?) Ah! I thought "V" was a keyword argument. Shame on me. Thank you for the hint. >> Another related problem is with contourf: if I modify the attached >> sample to use contourf and clabel, I get this error: > > Well, this one I do not understand myself. Uhm, I will wait for further suggestions. Maybe I am doing something stupid, again ;-) Thank you! Andrea. "Imagination Is The Only Weapon In The War Against Reality." http://xoomer.alice.it/infinity77/ -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Any news on wxMPL ?
Ken, Thanks a lot for your answer. I am very happy to know that you are alive and (mostly) healthy and that you didn't forget us! :) I'm sorry I didn't reply to your email. It fell through the cracks, so to speak. WxMpl development has been stalled for quite some time now because I developed bilateral carpal tunnel syndrome this past spring. It was not my intention to leave it abandoned and incompatible with matplotlib, but I've been finding everything to be a bit of an uphill battle these days. Woah, how bad. I'm sorry about that, I hope you're somehow recovering. My current plan is to spend some time later this month bringing WxMpl up to date with the API changes. I'd be very pleased to see it hosted as a matplotlib toolkit, so I'll move it over once it's working properly. If someone wants to move the source over and start hacking on it in the interim, please be my guest. Thanks a lot for your interest. I didn't have time to go into the wxmpl source, but another guy (Paulo Meira , [EMAIL PROTECTED] ) did a terrific work in bringing wxmpl up to date. I think you could start by contacting him. I attach his patched wxmpl.py in this mail. What I can say is that it is mostly working, at least for basic plotting, but it has some funny bug here and there (i.e. one of my collegues found on his system that the axes direction flips when zooming). It could be an interesting startpoint. Thanks a lot for your feedback again. I develop a data analysis application that uses wx and MPL and your little library made things much easier. Thanks for your wonderful work. Massimo -- Massimo Sandal , Ph.D. University of Bologna Department of Biochemistry "G.Moruzzi" snail mail: Via Irnerio 48, 40126 Bologna, Italy email: [EMAIL PROTECTED] web: http://www.biocfarm.unibo.it/samori/people/sandal.html tel: +39-051-2094388 fax: +39-051-2094387 wxmpl.py.gz Description: application/gzip begin:vcard fn:Massimo Sandal n:Sandal;Massimo org:University of Bologna;Department of Biochemistry adr:;;Via Irnerio 48;Bologna;;40126;Italy email;internet:[EMAIL PROTECTED] tel;work:+39-051-2094388 tel;fax:+39-051-2094387 x-mozilla-html:FALSE version:2.1 end:vcard -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] [SciPy-user] reading and writing data in Excel files
On Wed, 10 Dec 2008 04:24:24 -0800 "Joshua Lippai" <[EMAIL PROTECTED]> wrote: > With PyExcelerator installed, you can use the Excel >tools in the > matplotlib toolkits > > http://matplotlib.sourceforge.net/users/toolkits.html > > Using them, you can read in Excel files as recarrays and >write > recarrays to Excel files. It's fairly well-documented >through > docstrings. > > Josh > Hi Josh, Thank you for your prompt response ! I found an example in matplotlib/examples/pylab_examples loadrec.py Is it possible to color cells depending on the entry ? Nils -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Fwd: [SciPy-user] reading and writing data inExcel files
--- the forwarded message follows --- --- Begin Message --- >From the looks of the mail archive, it seems PyExcelerator is no longer >maintained http://sourceforge.net/mailarchive/forum.php?forum_name=pyexcelerator-devel You are advised to rather use xlwt to write Excel: http://pypi.python.org/pypi/xlwt and xlrd to read Excel: http://pypi.python.org/pypi/xlrd/ Both maintained by John Machin. >>> On 2008/12/10 at 03:11, in message <[EMAIL PROTECTED]>, "Nils Wagner" >>> <[EMAIL PROTECTED]> wrote: On Wed, 10 Dec 2008 04:24:24 -0800 "Joshua Lippai" <[EMAIL PROTECTED]> wrote: > With PyExcelerator installed, you can use the Excel >tools in the > matplotlib toolkits > > http://matplotlib.sourceforge.net/users/toolkits.html > > Using them, you can read in Excel files as recarrays and >write > recarrays to Excel files. It's fairly well-documented >through > docstrings. > > Josh > Hi Josh, Thank you for your prompt response ! I found an example in matplotlib/examples/pylab_examples loadrec.py Is it possible to color cells depending on the entry ? Nils -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. --- End Message --- -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] MPL linestyles and plot markers
Dear ALL,
Searching the MPL online documentation, I just found out that plot
linestyles can also be represented as a string (legal string values
are 'solid'|'dashed'|'dashdot'|'dotted'). So, I would like to ask you
gentlemen if such string representation is also available for plot
markers (I could not find this in the docs and so I am afraid it is
not) ?
Also, using linestyles in the conventional way (as single characters),
the docs are not very clear as what is what, so in linestyles = ['_',
'-', '--', ':'] is the underline character ('_') representing a solid
line? But in this case, what is the '-' character representing? An so
on... In my application, either "-", "--" (dotted?) and "-." (dash
dotted?) show solid lines and only ":" (dotted) works as expected,
showing a dotted line.
I am aware that this might, perhaps, be answered by trial-and-error in
the interactive prompt, but in my opinion if one can find the needed
information in the docs, this saves a lot of time with these tests
that sometimes are too much.
Thanks in advance for any hints and tips.
Best regards,
--
Dr. Mauro J. Cavalcanti
Ecoinformatics Studio
P.O. Box 46521, CEP 20551-970
Rio de Janeiro, RJ, BRASIL
E-mail: [EMAIL PROTECTED]
Web: http://studio.infobio.net
Linux Registered User #473524 * Ubuntu User #22717
"Life is complex. It consists of real and imaginary parts."
--
SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada.
The future of the web can't happen without you. Join us at MIX09 to help
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[Matplotlib-users] ANN: matplotlib-0.98.4
We have just released a new version of matplotlib, available for download at https://sourceforge.net/project/showfiles.php?group_id=80706&package_id=278194&release_id=646146 These "what's new" release notes, with graphs and links, are available in html at http://matplotlib.sourceforge.net/users/whats_new.html Thanks to Charlie Moad for testing and preparing the source release, including binaries for OS X and Windows for python 2.4 and 2.5 (2.6 and 3.0 will not be available until numpy is available on those releases). Thanks to the many developers who contributed to this release, with contributions from Jae-Joon Lee, Michael Droettboom, Ryan May, Eric Firing, Manuel Metz, Jouni K. Seppaenen, Jeff Whitaker, Darren Dale, David Kaplan, Michiel de Hoon and many others who submitted patches What new in 0.98.4 == It's been four months since the last matplotlib release, and there are a lot of new features and bug-fixes Legend enhancements Jae-Joon has rewritten the legend class, and added support for multiple columns and rows, as well as fancy box drawing. See http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.legend http://matplotlib.sourceforge.net/api/artist_api.html#matplotlib.legend.Legend http://matplotlib.sourceforge.net/examples/pylab_examples/legend_demo3.html Fancy annotations and arrows - Jae-Joon has added lot's of support to annotations for drawing fancy boxes and connectors in annotations. See http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.annotate http://matplotlib.sourceforge.net/api/artist_api.html#matplotlib.patches.BoxStyle http://matplotlib.sourceforge.net/api/artist_api.html#matplotlib.patches.ArrowStyle http://matplotlib.sourceforge.net/api/artist_api.html#matplotlib.patches.ConnectionStyle http://matplotlib.sourceforge.net/examples/pylab_examples/annotation_demo2.html Native OS X backend Michiel de Hoon has provided a native Mac OSX backend that is almost completely implemented in C. The backend can therefore use Quartz directly and, depending on the application, can be orders of magnitude faster than the existing backends. In addition, no third-party libraries are needed other than Python and NumPy. The backend is interactive from the usual terminal application on Mac using regular Python. It hasn't been tested with ipython yet, but in principle it should to work there as well. Set 'backend : macosx' in your matplotlibrc file, or run your script with:: > python myfile.py -dmacosx psd amplitude scaling - Ryan May did a lot of work to rationalize the amplitude scaling of :func:`~matplotlib.pyplot.psd` and friends. The changes should increase MATLAB (TM) compatabililty and increase scaling options. http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.psd http://matplotlib.sourceforge.net/examples/pylab_examples/psd_demo2.html#pylab-examples-psd-demo2 http://matplotlib.sourceforge.net/examples/pylab_examples/psd_demo3.html#pylab-examples-psd-demo3 Fill between -- Added a fill_between function to make it easier to do shaded region plots in the presence of masked data. You can pass an *x* array and a *ylower* and *yupper* array to fill betweem, and an optional *where* argument which is a logical mask where you want to do the filling. See http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.fill_between http://matplotlib.sourceforge.net/examples/pylab_examples/fill_between.html Lots more --- Here are the 0.98.4 notes from the CHANGELOG:: Added mdehoon's native macosx backend from sf patch 2179017 - JDH Removed the prints in the set_*style commands. Return the list of pprinted strings instead - JDH Some of the changes Michael made to improve the output of the property tables in the rest docs broke of made difficult to use some of the interactive doc helpers, eg setp and getp. Having all the rest markup in the ipython shell also confused the docstrings. I added a new rc param docstring.harcopy, to format the docstrings differently for hardcopy and other use. Ther ArtistInspector could use a little refactoring now since there is duplication of effort between the rest out put and the non-rest output - JDH Updated spectral methods (psd, csd, etc.) to scale one-sided densities by a factor of 2 and, optionally, scale all densities by the sampling frequency. This gives better MatLab compatibility. -RM Fixed alignment of ticks in colorbars. -MGD drop the deprecated "new" keyword of np.histogram() for numpy 1.2 or later. -JJL Fixed a bug in svg backend that new_figure_manager() ignores keywords arguments such as figsize, etc. -JJL Fixed a bug that the handlelength of the new legend class set too short when numpoints=1 -JJL A
Re: [Matplotlib-users] Any news on wxMPL ?
On Dec 10, 2008, at 6:35 AM, massimo sandal wrote: > Thanks a lot for your answer. I am very happy to know that you are > alive and (mostly) healthy and that you didn't forget us! :) Oh no, I certainly haven't forgotten about you all! >> I'm sorry I didn't reply to your email. It fell through the >> cracks, so to speak. >> WxMpl development has been stalled for quite some time now because >> I developed bilateral carpal tunnel syndrome this past spring. It >> was not my intention to leave it abandoned and incompatible with >> matplotlib, but I've been finding everything to be a bit of an >> uphill battle these days. > > Woah, how bad. I'm sorry about that, I hope you're somehow recovering. Thanks. I'm going to have some surgery early next year, which will hopefully fix things. I intend to have WxMpl working again and safely in matplotlib's repository before then, as I'll be effectively offline for six months or so, at least in terms of writing code. > Thanks a lot for your interest. I didn't have time to go into the > wxmpl source, but another guy (Paulo Meira , [EMAIL PROTECTED] ) did > a terrific work in bringing wxmpl up to date. I think you could > start by contacting him. Yes, I've had his email with the patch flagged in Mail.app for approximately forever. Thanks for sending me a patched copy of wxmpl.py, too. It'll be very helpful in figuring out the sort of changes I need to make. > Thanks a lot for your feedback again. I develop a data analysis > application that uses wx and MPL and your little library made things > much easier. Thanks for your wonderful work. Thank you very much for your kind words. :-) Ken -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Contour/Contourf misunderstanding?
Andrea Gavana wrote: > Hi Mauro & All, > > On Wed, Dec 10, 2008 at 10:32 AM, Mauro Cavalcanti wrote: >> Dear Andrea, >> >> Greetings. I have tried your script here. >> >> 2008/12/10 Andrea Gavana <[EMAIL PROTECTED]>: >>> I attach my small sample to the message. Am I doing something worng in >>> my call to contour? Why I am unable to see the 20 contour I specified >>> in my vector V? >> But you can. Simply change the line below to: >>> CS = plt.contourf(X, Y, Z, V=V) >>> CS = plt.contourf(X, Y, Z, V) >> (I did not understand the reason behind the "V=V" in the argument list?) > > Ah! I thought "V" was a keyword argument. Shame on me. Thank you for the hint. > >>> Another related problem is with contourf: if I modify the attached >>> sample to use contourf and clabel, I get this error: >> Well, this one I do not understand myself. > > Uhm, I will wait for further suggestions. Maybe I am doing something > stupid, again ;-) Not stupid at all; it just happens that clabel works only with contour, not with contourf. Clabel operates on the LineCollection generated by contour, but contourf generates a PolyCollection. It should be possible to call contourf, then contour, then clabel, and then make the LineCollection from contour invisible, but I don't have time now to come up with an example. Eric > > Thank you! > > Andrea. > > "Imagination Is The Only Weapon In The War Against Reality." > http://xoomer.alice.it/infinity77/ > > -- > SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. > The future of the web can't happen without you. Join us at MIX09 to help > pave the way to the Next Web now. Learn more and register at > http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ > ___ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Font problem
Hi, congratulations on releasing 0.98.4. I especially like the new improved possibilities for legends. I'm trying to understand how to change fonts. But I'm not very successful. I use python 2.5 on windows xp with the latest 0.98.4 of matplotlib. I want to create plots that work well with a manuscript in LaTeX using the IEEE template. Using that template the regular text comes out in Nimbus Roman No 9L, but I can't get matplotlib to use that font. Using the attached script (with default matplotlibrc) I end up with BitstreamVeraSerif-Roman in the resulting pdf. So it seems only Vera is recognized. In the attached file 'log.txt' is the output from running the script with verbose.level=debug. From the log it seems the pdfcorefonts are not on the fontpath. But still Times New Roman and palatino both are available in the system font directory as ttf fonts. Any ideas on how to fix this /Jörgen fonts_problem.py Description: application/python matplotlib data path C:\Python25\lib\site-packages\matplotlib-0.98.4-py2.5-win32.egg\matplotlib\mpl-data loaded rc file C:\python\bugreports\matplotlib\matplotlibrc matplotlib version 0.98.4 verbose.level debug interactive is False units is False platform is win32 loaded modules: ['xml.sax.urlparse', 'distutils', 'matplotlib.errno', 'pylab', 'subprocess', 'gc', 'matplotlib.tempfile', 'distutils.sysconfig', 'ctypes._endian', 'encodings.encodings', 'matplotlib.colors', 'msvcrt', 'numpy.testing.sys', 'numpy.core.info', 'xml', 'numpy.fft.types', 'numpy.ma.operator', 'numpy.ma.cPickle', 'struct', 'numpy.random.info', 'tempfile', 'xml.sax.urllib', 'numpy.linalg', 'matplotlib.threading', 'numpy.testing.operator', 'imp', 'numpy.testing', 'collections', 'numpy.core.umath', 'numpy.lib.pkgutil', 'distutils.types', 'numpy.lib.numpy', 'numpy.core.scalarmath', 'matplotlib.matplotlib', 'string', 'matplotlib.subprocess', 'numpy.testing.os', 'matplotlib.locale', 'numpy.lib.arraysetops', 'numpy.testing.unittest', 'numpy.lib.math', 'matplotlib.__future__', 'numpy.testing.re', 'itertools', 'numpy.version', 'numpy.lib.re', 'distutils.re', 'ctypes.os', 'numpy.core.os', 'numpy.lib.type_check', 'signal', 'numpy.lib.types', 'numpy.lib._datasource', 'random', 'threading', 'numpy.fft.fftpack_lite', 'matplotlib.cbook', 'ctypes.ctypes', 'xml.sax.xmlreader', 'numpy.__builtin__', 'distutils.version', 'cStringIO', 'numpy.ma.core', 'numpy.numpy', 'matplotlib.StringIO', 'locale', 'numpy.add_newdocs', 'numpy.lib.getlimits', 'xml.sax.saxutils', 'numpy.testing.types', 'numpy.lib.sys', 'encodings', 'numpy.ma.itertools', 'numpy.lib.io', 'numpy.imp', 'numpy.ma.extras', 'numpy.testing.decorators', 'matplotlib.warnings', 'matplotlib.string', '_subprocess', 'urllib', 'matplotlib.sys', 're', 'numpy.lib._compiled_base', 'ntpath', 'numpy.random.mtrand', 'math', 'numpy.fft.helper', 'numpy.ma.warnings', 'matplotlib.numpy', 'UserDict', 'numpy.lib.function_base', 'distutils.os', 'matplotlib', 'numpy.fft.numpy', 'numpy.lib.ufunclike', 'numpy.lib.info', 'numpy.core.numerictypes', 'ctypes', 'numpy.lib.warnings', 'ctypes.struct', 'codecs', 'numpy.core._sort', 'numpy.os', '_locale', 'matplotlib.sre_constants', 'matplotlib.os', 'thread', 'StringIO', 'numpy.core.memmap', 'traceback', '_struct', 'numpy.testing.warnings', 'weakref', 'numpy.core._internal', 'numpy.fft.fftpack', 'numpy.testing.imp', 'numpy.linalg.lapack_lite', 'distutils.sys', 'os', 'numpy.lib.itertools', '__future__', 'matplotlib.copy', 'xml.sax.types', 'matplotlib.traceback', '_sre', 'unittest', 'numpy.core.sys', 'numpy.random', 'numpy.linalg.numpy', '__builtin__', 'numpy.lib.twodim_base', 'matplotlib.re', 'numpy.core.cPickle', 'operator', 'numpy.testing.parametric', 'numpy.core.arrayprint', 'distutils.string', 'numpy.lib.arrayterator', 'ctypes._ctypes', 'ctypes.sys', 'matplotlib.datetime', 'numpy.testing.nosetester', 'pkgutil', 'numpy.lib.financial', 'numpy.core.multiarray', 'errno', '_socket', 'binascii', 'sre_constants', 'datetime', 'numpy.ma', 'xml.sax.handler', 'types', 'numpy.lib.stride_tricks', 'numpy.core.numpy', 'numpy', 'matplotlib.types', 'numpy.core.defmatrix', 'xml.sax.os', 'cPickle', 'matplotlib.xml', '_codecs', 'numpy.lib.operator', 'encodings.cp1252', 'matplotlib.pyparsing', 'nturl2path', 'numpy.ma.numpy', 'copy', 'numpy.core.re', 'socket', '_types', 'numpy.core.fromnumeric', 'numpy.ctypeslib', 'numpy.lib.scimath', 'numpy.fft', 'numpy.lib', 'numpy.random.numpy', 'encodings.aliases', 'matplotlib.distutils', 'exceptions', 'sre_parse', 'numpy.core.cStringIO', 'numpy.core.ctypes', 'distutils.distutils', 'copy_reg', 'sre_compile', 'xml.sax', '_random', 'numpy.lib.__future__', 'site', 'numpy.lib.polynomial', 'numpy._import_tools', 'numpy.core.copy_reg', 'zipimport', '__main__', 'numpy.fft.info', 'numpy.core.records', 'shutil', 'numpy.lib.cPickle', 'numpy.sys', 'matplotlib.weakref', 'numpy.core._dotblas', 'numpy.testing.traceback', 'strop', 'numpy.testing.numpytest', 'numpy.core.nu
[Matplotlib-users] Status of Axes3d
Hi Everyone, Does anyone know the long term plans of fixing Axes3d / Mplot3D in MPL? Is this ever going to be re-incorporated in this library in the future? Just wondering... -Ryan Wagner -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Font problem
Unfortunately, I think this is a bug. The ordering of fonts in the family list is being ignored, and Bitstream Vera Sans is winning over Nimbus Roman for reasons other than its name. I'll have to get this patch in for the bugfix release we're already planning. As a workaround, try putting only "Nimbus Roman No9 L" as the only font in the list. Does that help? Also, I don't see the Nimbus Roman font file (n021003l.ttf) anywhere in the debugging output. Are you sure it's in C:\Windows\Fonts ? Mike Jörgen Stenarson wrote: > Hi, > > congratulations on releasing 0.98.4. I especially like the new > improved possibilities for legends. > > I'm trying to understand how to change fonts. But I'm not very > successful. I use python 2.5 on windows xp with the latest 0.98.4 of > matplotlib. > > I want to create plots that work well with a manuscript in LaTeX using > the IEEE template. Using that template the regular text comes out in > Nimbus Roman No 9L, but I can't get matplotlib to use that font. > > Using the attached script (with default matplotlibrc) I end up with > BitstreamVeraSerif-Roman in the resulting pdf. So it seems only Vera > is recognized. In the attached file 'log.txt' is the output from > running the script with verbose.level=debug. > > From the log it seems the pdfcorefonts are not on the fontpath. But > still Times New Roman and palatino both are available in the system > font directory as ttf fonts. > > Any ideas on how to fix this > > /Jörgen > > > -- > SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. > The future of the web can't happen without you. Join us at MIX09 to help > pave the way to the Next Web now. Learn more and register at > http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ > > > ___ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] axvspan/axhspan doesn't understand keyword arguments
I ran into a little problem when adding an axis span (both vertical and horizontal) to my plot. When I use the optional keyword arguments, I get an error message: import pylab pylab.axhspan(0.25, 0.75, facecolor='0.5', alpha=0.5) Traceback (most recent call last): File "", line 1, in File "/lib/python2.5/site-packages/matplotlib/pyplot.py", line 1572, in axhspan ret = gca().axhspan(*args, **kwargs) File "/lib/python2.5/site-packages/matplotlib/axes.py", line 2883, in axhspan self._process_unit_info( [xmin, xmax], [ymin, ymax], **kwargs ) TypeError: _process_unit_info() got an unexpected keyword argument 'alpha' Granted, I can get the results I want using the .set_xxx() methods, but my first method should have worked, right? I've never filed a bug for matplotlib before, so I figured I'd send out an email to the users-group first. Thanks, Sara -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Legends for multi-histograms
It seems like there ought to be an easy way to associate labels with the various groups of patches generated by a call to hist() that uses a list of arrays, setting label=["a", "list", "of", "strings"] for instance, instead of having to go in and label one patch from each returned list of patches afterward. Would make legend creation easier anyway. Just a suggestion, Zane -- Zane Selvans Amateur Earthling [EMAIL PROTECTED] 303/815-6866 http://zaneselvans.org PGP Key: 55E0815F -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Font problem
Michael Droettboom skrev: > Unfortunately, I think this is a bug. The ordering of fonts in the > family list is being ignored, and Bitstream Vera Sans is winning over > Nimbus Roman for reasons other than its name. I'll have to get this > patch in for the bugfix release we're already planning. > > As a workaround, try putting only "Nimbus Roman No9 L" as the only font > in the list. Does that help? > > Also, I don't see the Nimbus Roman font file (n021003l.ttf) anywhere in > the debugging output. Are you sure it's in C:\Windows\Fonts ? > > Mike > As you say it seems only one font at a time can be specified. These are the ones I have managed to use by only specifying a single font: Times New Roman, Georgia, Euclid, Arial, Vera. It seems the Nimbus Roman my LaTeX installation uses is from utmr8a.pfm and utmr8a.pfb some kind of Type 1 font. I can install the pfm file in the system font directory but not the pfb files, anyway matplotlib won't use it. Is there a free ttf version available somewhere or is it possible to put the pfm/pfb files it somewhere else and have matplotlib use it? Thanks for looking in to this, Jörgen -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] axvspan/axhspan doesn't understand keyword arguments
Sara Hatch wrote: > I ran into a little problem when adding an axis span (both vertical and > horizontal) to my plot. When I use the optional keyword arguments, I get > an error message: > > import pylab > pylab.axhspan(0.25, 0.75, facecolor='0.5', alpha=0.5) > Traceback (most recent call last): > File "", line 1, in > File "/lib/python2.5/site-packages/matplotlib/pyplot.py", line 1572, > in axhspan > ret = gca().axhspan(*args, **kwargs) > File "/lib/python2.5/site-packages/matplotlib/axes.py", line 2883, in > axhspan > self._process_unit_info( [xmin, xmax], [ymin, ymax], **kwargs ) > TypeError: _process_unit_info() got an unexpected keyword argument 'alpha' > > Granted, I can get the results I want using the .set_xxx() methods, but > my first method should have worked, right? > > I've never filed a bug for matplotlib before, so I figured I'd send out > an email to the users-group first. Sara, Thank you, that is indeed the right thing to do. In addition, please state what matplotlib version you are using. Often, although not in this case, it is also critical to know what operating system you are using, and the numpy version. You have definitely hit a bug, but it has been fixed--I don't see it in svn. I don't know how long ago it was fixed. A new release of mpl has just come out. Can you upgrade? Eric > > Thanks, > Sara > > > > > -- > SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. > The future of the web can't happen without you. Join us at MIX09 to help > pave the way to the Next Web now. Learn more and register at > http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ > > > > > ___ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Anyone see this after upgrading?
Just upgraded to 98.4. Can reproduce this on two XP32 boxes. Any thoughts?
C:\Documents and Settings\rwagner\Desktop>python
Python 2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from pylab import *
Traceback (most recent call last):
File "", line 1, in
File "C:\Python25\Lib\site-packages\pylab.py", line 1, in
from matplotlib.pylab import *
File "C:\Python25\Lib\site-packages\matplotlib\pylab.py", line 253, in
from matplotlib.pyplot import *
File "C:\Python25\Lib\site-packages\matplotlib\pyplot.py", line 75, in
new_figure_manager, draw_if_interactive, show = pylab_setup()
File "C:\Python25\Lib\site-packages\matplotlib\backends\__init__.py", line 25,
in pylab_setup
globals(),locals(),[backend_name])
File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_gtkagg.py", li
ne 10, in
from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK, FigureCan
vasGTK,\
File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_gtk.py", line
11, in
raise ImportError("Gtk* backend requires pygtk to be installed.")
ImportError: Gtk* backend requires pygtk to be installed.
>>>
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[Matplotlib-users] blit example on MacOS with ipython
Hi, I have taken the blit example and modified it such that it runs on my mac. The function is called blit_ex.py. It works well when I paste the code in ipython, but it doesn't when I do "run blit_ex.py" from ipython. I am using EPD Py25 4.1.30001_beta1 and Mac OS 10.5. The error message is: In [1]: run blit_ex.py --- AssertionErrorTraceback (most recent call last) /Users/pierre/Desktop/blit_ex.py in () 24 canvas.restore_region(background) 25 line.set_ydata(np.sin(x+i/10.)) ---> 26 ax.draw_artist(line) 27 canvas.blit(ax.bbox) 28 /Library/Frameworks/Python.framework/Versions/4.1.30001/lib/python2.5/site-packages/matplotlib-0.98.3.0001-py2.5-macosx-10.3-fat.egg/matplotlib/axes.pyc in draw_artist(self, a) 1532 data (axis ticks, labels, etc are not updated) 1533 """ -> 1534 assert self._cachedRenderer is not None 1535 a.draw(self._cachedRenderer) 1536 AssertionError: WARNING: Failure executing file: And the code is import matplotlib.pyplot as plt import numpy as np import time plt.figure(1) plt.clf() ax = plt.subplot(111) canvas = ax.figure.canvas # for profiling tstart = time.time() # create the initial line x = np.linspace(-3, 3, 1000) line, = plt.plot(x, np.sin(x), animated=True) # save the clean slate background -- everything but the animated line # is drawn and saved in the pixel buffer background background = canvas.copy_from_bbox(ax.bbox) for i in range(100): canvas.restore_region(background) line.set_ydata(np.sin(x+i/10.)) ax.draw_artist(line) canvas.blit(ax.bbox) Thanks! Pierre -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Font problem
Jörgen Stenarson wrote: > Michael Droettboom skrev: >> Unfortunately, I think this is a bug. The ordering of fonts in the >> family list is being ignored, and Bitstream Vera Sans is winning over >> Nimbus Roman for reasons other than its name. I'll have to get this >> patch in for the bugfix release we're already planning. >> >> As a workaround, try putting only "Nimbus Roman No9 L" as the only >> font in the list. Does that help? >> >> Also, I don't see the Nimbus Roman font file (n021003l.ttf) anywhere >> in the debugging output. Are you sure it's in C:\Windows\Fonts ? >> >> Mike >> > > As you say it seems only one font at a time can be specified. These > are the ones I have managed to use by only specifying a single font: > Times New Roman, Georgia, Euclid, Arial, Vera. > > It seems the Nimbus Roman my LaTeX installation uses is from > utmr8a.pfm and utmr8a.pfb some kind of Type 1 font. I can install the > pfm file in the system font directory but not the pfb files, anyway > matplotlib won't use it. That is correct. matplotlib can only use ttf files (or the standard 14 Postscript files when outputting Postscript). > Is there a free ttf version available somewhere or is it possible to > put the pfm/pfb files it somewhere else and have matplotlib use it? I believe Nimbus Roman is just a clone of Times that is included with Ghostscript. http://www.tug.dk/FontCatalogue/nimbus/ If you have Times or Times New Roman installed, that's probably a reasonable substitute. Cheers, Mike -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Anyone see this after upgrading?
On Wed, Dec 10, 2008 at 5:01 PM, Ryan Wagner <[EMAIL PROTECTED]> wrote: > Just upgraded to 98.4. Can reproduce this on two XP32 boxes. Any > thoughts? > This is a bug in the win32 installer, which has gtkagg set as the default backend. You can fix this by setting TkAgg in the backend, which is what we *should* have done in the installer. You need to change the line backend : GTKAgg to backend : TkAgg in your matplotlibrc config file. Instructions for editing the rc file can be found at http://matplotlib.sourceforge.net/users/customizing.html. You can also read about "what is a backend?" here - http://matplotlib.sourceforge.net/faq/installing_faq.html#id1 We will be putting out new installers that fix this problem ASAP, so those of you who on windows who have not yet installed 98.4 may prefer to wait until we announce the fixed installers are up. This problem does not affect the src tarball or the os x installers. Sorry for the trouble! JDH -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] blit example on MacOS with ipython
On Wed, Dec 10, 2008 at 5:20 PM, pierre garrigues < [EMAIL PROTECTED]> wrote: > > # create the initial line > x = np.linspace(-3, 3, 1000) > line, = plt.plot(x, np.sin(x), animated=True) > > # save the clean slate background -- everything but the animated line > # is drawn and saved in the pixel buffer background > background = canvas.copy_from_bbox(ax.bbox) > It looks to me that you need to force a figure draw *before* doing copy_from_bbox. Eg:: fig.canvas.draw() background = canvas.copy_from_bbox(ax.bbox) The reason you are seeing a difference between ipython "run" and ipython copy-and-paste is that in "run" mode ipython turns interactive drawing off (for details see http://matplotlib.sourceforge.net/users/shell.html) so the draw event is never called, and the cached renderer, which is triggering your exception, is never set. This is speculation, as I haven't tested, so please answer back if this fixes your problem and if so I will update the matplotlib animation recipe which also suffers from this problem (which is not exposed unless you are running in interactive mode, which you are). It is on my list of things to do to write a proper animation chapter for the user's guide JDH -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Website buglet
Hi, I noticed that there is a problem rendering the plot here: http://matplotlib.sourceforge.net/users/screenshots.html#basemap-demo It might be something to do with the location of the data required by the plotmap.py demo script (line 14). Cheers, Scott -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
