Re: [Matplotlib-users] Problem in svn install
Thanks, I thougth that this could be the problem. Actually i fixed it by myself. Thanks anyway. Cheers Davide -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Problem in svn install
Hi everybody, I have a problem in building matplotlib from svn sources. Here is the output of the build process. ### smif1...@ubuntu [14:11:05] ~/cvs/matplotlib :sudo python setupegg.py develop BUILDING MATPLOTLIB matplotlib: 1.0.svn python: 2.6.2 (release26-maint, Apr 19 2009, 01:56:41) [GCC 4.3.3] platform: linux2 REQUIRED DEPENDENCIES numpy: 1.2.1 freetype2: 9.20.3 OPTIONAL BACKEND DEPENDENCIES libpng: 1.2.27 Tkinter: no * TKAgg requires Tkinter wxPython: 2.8.9.1 * WxAgg extension not required for wxPython >= 2.8 pkg-config: looking for pygtk-2.0 gtk+-2.0 * Package pygtk-2.0 was not found in the pkg-config * search path. Perhaps you should add the directory * containing `pygtk-2.0.pc' to the PKG_CONFIG_PATH * environment variable No package 'pygtk-2.0' found * You may need to install 'dev' package(s) to * provide header files. Gtk+: no * Could not find Gtk+ headers in any of * '/usr/local/include', '/usr/include', '.' Mac OS X native: no Qt: no Qt4: no Cairo: 1.4.12 OPTIONAL DATE/TIMEZONE DEPENDENCIES datetime: present, version unknown dateutil: matplotlib will provide pytz: 2008c OPTIONAL USETEX DEPENDENCIES dvipng: 1.11 ghostscript: 8.64 latex: 3.141592 pdftops: 0.10.5 [Edit setup.cfg to suppress the above messages] pymods ['pylab'] packages ['matplotlib', 'matplotlib.backends', 'matplotlib.projections', 'matplotlib.testing', 'matplotlib.testing.jpl_units', 'matplotlib.tests', 'mpl_toolkits', 'mpl_toolkits.mplot3d', 'mpl_toolkits.axes_grid', 'matplotlib.sphinxext', 'matplotlib.numerix', 'matplotlib.numerix.mlab', ' matplotlib.numerix.ma', 'matplotlib.numerix.linear_algebra', 'matplotlib.numerix.random_array', 'matplotlib.numerix.fft', 'matplotlib.delaunay', 'dateutil', 'dateutil/zoneinfo'] running develop running egg_info writing lib/matplotlib.egg-info/PKG-INFO writing namespace_packages to lib/matplotlib.egg-info/namespace_packages.txt writing top-level names to lib/matplotlib.egg-info/top_level.txt writing dependency_links to lib/matplotlib.egg-info/dependency_links.txt writing entry points to lib/matplotlib.egg-info/entry_points.txt reading manifest template 'MANIFEST.in' warning: no files found matching 'MANIFEST' warning: no files found matching 'examples/data/*' warning: no files found matching 'lib/mpl_toolkits' writing manifest file 'lib/matplotlib.egg-info/SOURCES.txt' running build_ext building 'matplotlib.ft2font' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -DPY_ARRAYAUNIQUE_SYMBOL=MPL_ARRAY_API -I/usr/lib/python2.6/dist-packages/numpy/core/include -I/usr/include/freetype2 -I/usr/local/include -I/usr/include -I. -I/usr/include/python2.6 -c src/ft2font.cpp -o build/temp.linux-i686-2.6/src/ft2font.o gcc: error trying to exec 'cc1plus': execvp: No such file or directory error: command 'gcc' failed with exit status 1 # Any help is appreciated. Cheers Davide -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] problem with svn install
Yes, That did it. The partition had to be mounted with option execin /etc/fstab!! Thanks. Cheers Davide -- ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] problem with svn install (Davide Lasagna)
Well, actually i'm using Ubuntu at work on a virtual machine, and the svn copy is in a partition mounted at boot by a line in /etc/fstab. If i remember correctly this filesystem is mounted with options users. I'm at home now, i'll try with the exec option tomorrow. -- ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] problem with svn install
Hi all, I have a problem with an svn install. I've followed the instruciont on mpl website, that is: $ svn co https://matplotlib.svn.sourceforge.net/svnroot/matplotlib/trunk/matplotlib matplotlib $ cd matplotlib $ python setupegg.py develop Please note that i've run the last command with sudo as i'm explicitly asked to do so. Then if i run this simple test script: from pylab import * plot([1,2,3]) show() from the command line as python test.py --verbose-helpful i get thise output: dav...@davide-desktop:~$ python test.py --verbose-helpful $HOME=/home/davide CONFIGDIR=/home/davide/.matplotlib matplotlib data path /home/davide/partizione/matplotlib/lib/matplotlib/mpl-data loaded rc file /home/davide/partizione/matplotlib/lib/matplotlib/mpl-data/matplotlibrc matplotlib version 0.98.6svn verbose.level helpful interactive is False units is False platform is linux2 Traceback (most recent call last): File "mio", line 1, in from pylab import * File "/home/davide/partizione/matplotlib/lib/pylab.py", line 1, in from matplotlib.pylab import * File "/home/davide/partizione/matplotlib/lib/matplotlib/pylab.py", line 206, in from matplotlib import mpl # pulls in most modules File "/home/davide/partizione/matplotlib/lib/matplotlib/mpl.py", line 1, in from matplotlib import artist File "/home/davide/partizione/matplotlib/lib/matplotlib/artist.py", line 5, in from transforms import Bbox, IdentityTransform, TransformedBbox, TransformedPath File "/home/davide/partizione/matplotlib/lib/matplotlib/transforms.py", line 34, in from matplotlib._path import affine_transform ImportError: /home/davide/partizione/matplotlib/lib/matplotlib/_path.so: failed to map segment from shared object: Operation not permitted Could it be that i've installed in the wrong directory? If yes how can i cope with this? Thanks in advance for any help. Davide -- ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Colorbar not working with specgram
Thanks Eric for pointing out this. However i've found that psd and specgram plot 10*log10*(Pxx/max(Pxx)), so i'll have a range from 0 db down. Anyway, what do you mean by "should not be axes method"? Do you mean using the array output of specgram and psd and plotting that result by myself? Cheers Davide On Tue, 2009-07-21 at 09:12 -1000, Eric Firing wrote: > davide lasagna wrote: > > Hello everybody, > > this is my first post in this list. > > > > I'm plotting a spectrogram with > > > > Pxx, freqs, bins, im = specgram(y, nfft=256, f_sampling=12000) > > > > and i want to add a colorbar with > > > > colorbar() > > > > > > The problem is that the color scale seems to be wrong with respect to > > the data in Pxx, i.e. Pxx is of the order of 1e-2 while in the colorbar > > i have tick values spanning from -20 to -180. What is the problem?? > > specgram and psd plot power in decibels: 10*log10(Pxx). > > Because they involve heavy computation and application-specific choices, > like the decibel scale, they really should not be axes methods. > > You can make a function plot the spectrogram however you like by looking > at the source code in the Axes.specgram method (the pyplot specgram > function is just a thin wrapper for this method), which is using > mlab.specgram to do the calculation and is then just scaling and plotting. > > Eric > > > > > > Thanks in advance! > > > > > > Davide > > > > > > -- > > Enter the BlackBerry Developer Challenge > > This is your chance to win up to $100,000 in prizes! For a limited time, > > vendors submitting new applications to BlackBerry App World(TM) will have > > the opportunity to enter the BlackBerry Developer Challenge. See full prize > > > > details at: http://p.sf.net/sfu/Challenge > > ___ > > Matplotlib-users mailing list > > Matplotlib-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Error with colorbar in specgram plot.
Hello everybody, this is my first post in this list. I'm plotting a spectrogram with Pxx, freqs, bins, im = specgram(y, nfft=256, f_sampling=12000) and i want to add a colorbar with colorbar() The problem is that the color scale seems to be wrong with respect to the data in Pxx, i.e. Pxx is of the order of 1e-2 while in the colorbar i have tick values spanning from -20 to -180. What is the problem?? Thanks in advance! Davide -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Colorbar not working with specgram
Hello everybody, this is my first post in this list. I'm plotting a spectrogram with Pxx, freqs, bins, im = specgram(y, nfft=256, f_sampling=12000) and i want to add a colorbar with colorbar() The problem is that the color scale seems to be wrong with respect to the data in Pxx, i.e. Pxx is of the order of 1e-2 while in the colorbar i have tick values spanning from -20 to -180. What is the problem?? Thanks in advance! Davide -- Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
