[Matplotlib-users] Can't seem to plot 2 horizontal lines on same plot
I don't know what dumb thing I'm going but I can't seem to plot 2 horizontal lines on the same plot!!! Why does this snippet give a *BLANK* plot when I run it? (Either line separately seems to be ok!?!?) import pylab x1 = pylab.arange(-10, 10, 0.01) x2 = pylab.arange( 0, 10, 0.01) f1 = [0 for e in x1] f2 = [1 for e in x2] pylab.show(pylab.plot(x1, f1, x2, f2)) Chris - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Can't seem to plot 2 horizontal lines on same plot
On Tuesday, 7 October 2008, [EMAIL PROTECTED] wrote: Why does this snippet give a *BLANK* plot when I run it? (Either line separately seems to be ok!?!?) import pylab x1 = pylab.arange(-10, 10, 0.01) x2 = pylab.arange( 0, 10, 0.01) f1 = [0 for e in x1] f2 = [1 for e in x2] pylab.show(pylab.plot(x1, f1, x2, f2)) The autoscaling feature sets the y limits to [0,1] which means that your lines are falling on the bottom and top x-axis which hides them. Rescaling the y-axis will make the lines visible, e.g. pylab.ylim(-1,2) Johann - 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] Animation and imshow
I'm trying to figure out how to do animated graphics in pylab using imshow, so I made this little 'hello world' equivalent showing a moving square over two frames. Problem is I have to call draw twice to refresh the image. Anyone can explain why this is so (and how to do this more elegantly)? This is the code: from pylab import * from numpy import * ion() hold(False) frame1 = zeros((200, 200)) frame1[20:40, 20:40] = 255 frame2 = zeros((200, 200)) frame2[20:40, 30:50] = 255 m = imshow(frame1) draw() # shows frame1 m.set_data(frame2) draw() # still shows frame1!!! draw() # and now it shows frame2!?? -- Alex Borghgraef - 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] compiling problems w/ py2.6 on OS 10.4
matplotlib 0.98.3 predates the release of Python 2.6, so it is
unsupported in that combination. There were recent changes made to
matplotlib in SVN to make it (more) Python 2.6 compatible. You may run
into further trouble trying to get it to work with Python 2.6
That, however, doesn't seem to be the root of your compilation problem.
src/backend_agg.cpp:3:17: error: png.h: No such file or directory
...indicates that it can not find the headers for libpng. Did you
follow the instructions here:
http://ipython.scipy.org/moin/Py4Science/InstallationOSX
...particularly regarding installing pkgconfig?
If not, let us know where your libpng is installed. You can try, as a
hack, adding that directory to the list of the darwin directories at the
top of setupext.py.
Cheers,
Mike
Nat Wilson wrote:
(message was too long before, and bounced. trying again, having
abridged the terminal output)
I've just installed python 2.6, and I'm having trouble compiling
matplotlib.
The problem is generally the same whether I try to build it myself or
use easy_install.
Here are my specs:
Python 2.6
matplotlib 0.98.3
numpy 1.2.0
on a Apple iBook G4, running OS 10.4.11.
In the past, I've had no problems getting it working with Python 2.5,
although since then I've changed from tcl/tk 8.4 to tcl/tk 8.5.
Here is the output in the terminal:
##:~/Desktop/matplotlib-0.98.3 natwilson$ python setup.py build
/Users/natwilson/Desktop/matplotlib-0.98.3/setupext.py:67:
DeprecationWarning: the sets module is deprecated
from sets import Set
BUILDING MATPLOTLIB
matplotlib: 0.98.3
python: 2.6 (r26:66714, Oct 6 2008, 18:19:26) [GCC 4.0.1
(Apple Computer, Inc. build 5370)]
platform: darwin
REQUIRED DEPENDENCIES
numpy: 1.2.0
freetype2: found, but unknown version (no pkg-config)
OPTIONAL BACKEND DEPENDENCIES
libpng: found, but unknown version (no pkg-config)
* Could not find 'libpng' headers in any of
* '/usr/include', '/usr/X11R6/include', '.'
Tkinter: Tkinter: 65971, Tk: 8.5, Tcl: 8.5
wxPython: no
* wxPython not found
Gtk+: no
* Building for Gtk+ requires pygtk; you must
be able
* to import gtk in your build/install
environment
Qt: no
Qt4: no
Cairo: no
OPTIONAL DATE/TIMEZONE DEPENDENCIES
datetime: present, version unknown
dateutil: matplotlib will provide
pytz: matplotlib will provide
OPTIONAL USETEX DEPENDENCIES
/Users/natwilson/Desktop/matplotlib-0.98.3/setupext.py:502:
DeprecationWarning: os.popen4 is deprecated. Use the subprocess module.
stdin, stdout = os.popen4('dvipng -version')
dvipng: no
/Users/natwilson/Desktop/matplotlib-0.98.3/setupext.py:515:
DeprecationWarning: os.popen4 is deprecated. Use the subprocess module.
stdin, stdout = os.popen4(command)
ghostscript: 8.62
/Users/natwilson/Desktop/matplotlib-0.98.3/setupext.py:524:
DeprecationWarning: os.popen4 is deprecated. Use the subprocess module.
stdin, stdout = os.popen4('latex -version')
latex: 3.1415926
/Users/natwilson/Desktop/matplotlib-0.98.3/setupext.py:536:
DeprecationWarning: os.popen4 is deprecated. Use the subprocess module.
stdin, stdout = os.popen4('pdftops -v')
EXPERIMENTAL CONFIG PACKAGE DEPENDENCIES
configobj: matplotlib will provide
enthought.traits: no
[Edit setup.cfg to suppress the above messages]
running build
running build_py
creating build
creating build/lib.macosx-10.3-ppc-2.6
copying lib/pylab.py - build/lib.macosx-10.3-ppc-2.6
copying lib/configobj.py - build/lib.macosx-10.3-ppc-2.6
creating build/lib.macosx-10.3-ppc-2.6/matplotlib
copying lib/matplotlib/__init__.py -
build/lib.macosx-10.3-ppc-2.6/matplotlib
copying lib/matplotlib/_cm.py - build/lib.macosx-10.3-ppc-2.6/matplotlib
copying lib/matplotlib/_mathtext_data.py -
build/lib.macosx-10.3-ppc-2.6/matplotlib
copying lib/matplotlib/_pylab_helpers.py -
build/lib.macosx-10.3-ppc-2.6/matplotlib
copying lib/matplotlib/afm.py - build/lib.macosx-10.3-ppc-2.6/matplotlib
copying lib/matplotlib/artist.py -
build/lib.macosx-10.3-ppc-2.6/matplotlib
copying lib/matplotlib/axes.py - build/lib.macosx-10.3-ppc-2.6/matplotlib
copying lib/matplotlib/axes3d.py -
build/lib.macosx-10.3-ppc-2.6/matplotlib
copying lib/matplotlib/axis.py - build/lib.macosx-10.3-ppc-2.6/matplotlib
copying lib/matplotlib/backend_bases.py -
build/lib.macosx-10.3-ppc-2.6/matplotlib
copying
Re: [Matplotlib-users] Can't seem to plot 2 horizontal lines on same plot
pylab.show() takes no arguments. The pylab interface is stateful, meaning you run a series of commands in order and it usually does the right thing, rather than passing the results of one function into another (in general). Did you not get an exception when you ran your example? The following works for me: import pylab x1 = pylab.arange(-10, 10, 0.01) x2 = pylab.arange( 0, 10, 0.01) f1 = [0 for e in x1] f2 = [1 for e in x2] pylab.plot(x1, f1, x2, f2) pylab.show() [EMAIL PROTECTED] wrote: I don't know what dumb thing I'm going but I can't seem to plot 2 horizontal lines on the same plot!!! Why does this snippet give a *BLANK* plot when I run it? (Either line separately seems to be ok!?!?) import pylab x1 = pylab.arange(-10, 10, 0.01) x2 = pylab.arange( 0, 10, 0.01) f1 = [0 for e in x1] f2 = [1 for e in x2] pylab.show(pylab.plot(x1, f1, x2, f2)) Chris - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- 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] colorbar tick labeling
I was wondering if it is possible to change the colorbar tick labeling in matplotlib from numeric to text. Essentially, I want the colorbar to be a qualitative indicator; in the jet scheme, I'd like blue to be labeled as 'unstable', green as 'neutral', and red as 'stable'. I can change it so I just show the underlying values - colorbar(ticks = (-1, 0, 1)), but I cannot change the the tick labels to text. Is there any way to accomplish this? Thanks in advance for any help. - 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] Compilation problems on Fedora Core2.
Hi all, Both the latest matplotlib (0.98.3) and the maintenance release (0.91.4) fail to compile for me with identical error msg. I'm using Fedora Core 2, which I can't upgrade unfortunately. I've installed python2.5.2, numpy-1.1.1, pygtk-2.4 and they seem work ok. The relevant line is, gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/include/libpng12 -I/usr/local/include -I/usr/include -I. -Isrc -Iswig -Iagg23/include -I. -I/usr/include/freetype2 -I/usr/local/include -I/usr/include -I. -I/usr/local/include -I/usr/include -I. -I/usr/include/pygtk-2.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2/config -I/data/opt/include/python2.5 -c src/_gtkagg.cpp -o build/temp.linux-i686-2.5/src/_gtkagg.o In file included from /data/opt/include/python2.5/Python.h:8, from /usr/include/pygtk-2.0/pygobject.h:5, from src/_gtkagg.cpp:10: /data/opt/include/python2.5/pyconfig.h:942:1: warning: _POSIX_C_SOURCE redefined In file included from /usr/include/string.h:26, from /usr/include/c++/3.3.3/cstring:51, from src/_gtkagg.cpp:1: /usr/include/features.h:132:1: warning: this is the location of the previous definition In file included from src/_gtkagg.cpp:10: /usr/include/pygtk-2.0/pygobject.h:140: error: syntax error before `typename' /usr/include/pygtk-2.0/pygobject.h:147: error: syntax error before `typename' error: command 'gcc' failed with exit status 1 Thanks for any help, Venkat. - 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] Compilation problems on Fedora Core2.
This is a known problem with old versions of pygtk. See here: http://osdir.com/ml/python.matplotlib.general/2004-11/msg00101.html Cheers, Mike Venkat Ramanan wrote: Hi all, Both the latest matplotlib (0.98.3) and the maintenance release (0.91.4) fail to compile for me with identical error msg. I'm using Fedora Core 2, which I can't upgrade unfortunately. I've installed python2.5.2, numpy-1.1.1, pygtk-2.4 and they seem work ok. The relevant line is, gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/include/libpng12 -I/usr/local/include -I/usr/include -I. -Isrc -Iswig -Iagg23/include -I. -I/usr/include/freetype2 -I/usr/local/include -I/usr/include -I. -I/usr/local/include -I/usr/include -I. -I/usr/include/pygtk-2.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2/config -I/data/opt/include/python2.5 -c src/_gtkagg.cpp -o build/temp.linux-i686-2.5/src/_gtkagg.o In file included from /data/opt/include/python2.5/Python.h:8, from /usr/include/pygtk-2.0/pygobject.h:5, from src/_gtkagg.cpp:10: /data/opt/include/python2.5/pyconfig.h:942:1: warning: _POSIX_C_SOURCE redefined In file included from /usr/include/string.h:26, from /usr/include/c++/3.3.3/cstring:51, from src/_gtkagg.cpp:1: /usr/include/features.h:132:1: warning: this is the location of the previous definition In file included from src/_gtkagg.cpp:10: /usr/include/pygtk-2.0/pygobject.h:140: error: syntax error before `typename' /usr/include/pygtk-2.0/pygobject.h:147: error: syntax error before `typename' error: command 'gcc' failed with exit status 1 Thanks for any help, Venkat. - 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] Compilation problems on Fedora Core2.
Thanks for the quick and helpful pointer. I have a related question not specifically matplotlib related. I installed pygtk-2.4 using python setup.py install. Is there an easy way to remove it from the python install? Thanks, Venkat. Michael Droettboom wrote: This is a known problem with old versions of pygtk. See here: http://osdir.com/ml/python.matplotlib.general/2004-11/msg00101.html Cheers, Mike Venkat Ramanan wrote: Hi all, Both the latest matplotlib (0.98.3) and the maintenance release (0.91.4) fail to compile for me with identical error msg. I'm using Fedora Core 2, which I can't upgrade unfortunately. I've installed python2.5.2, numpy-1.1.1, pygtk-2.4 and they seem work ok. The relevant line is, gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/include/libpng12 -I/usr/local/include -I/usr/include -I. -Isrc -Iswig -Iagg23/include -I. -I/usr/include/freetype2 -I/usr/local/include -I/usr/include -I. -I/usr/local/include -I/usr/include -I. -I/usr/include/pygtk-2.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2/config -I/data/opt/include/python2.5 -c src/_gtkagg.cpp -o build/temp.linux-i686-2.5/src/_gtkagg.o In file included from /data/opt/include/python2.5/Python.h:8, from /usr/include/pygtk-2.0/pygobject.h:5, from src/_gtkagg.cpp:10: /data/opt/include/python2.5/pyconfig.h:942:1: warning: _POSIX_C_SOURCE redefined In file included from /usr/include/string.h:26, from /usr/include/c++/3.3.3/cstring:51, from src/_gtkagg.cpp:1: /usr/include/features.h:132:1: warning: this is the location of the previous definition In file included from src/_gtkagg.cpp:10: /usr/include/pygtk-2.0/pygobject.h:140: error: syntax error before `typename' /usr/include/pygtk-2.0/pygobject.h:147: error: syntax error before `typename' error: command 'gcc' failed with exit status 1 Thanks for any help, Venkat. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Compilation problems on Fedora Core2.
Sorry, I seem to have installed pygtk by configure --prefix=/data/opt make make install Bye, Venkat. Venkat Ramanan wrote: Thanks for the quick and helpful pointer. I have a related question not specifically matplotlib related. I installed pygtk-2.4 using python setup.py install. Is there an easy way to remove it from the python install? Thanks, Venkat. Michael Droettboom wrote: This is a known problem with old versions of pygtk. See here: http://osdir.com/ml/python.matplotlib.general/2004-11/msg00101.html Cheers, Mike Venkat Ramanan wrote: Hi all, Both the latest matplotlib (0.98.3) and the maintenance release (0.91.4) fail to compile for me with identical error msg. I'm using Fedora Core 2, which I can't upgrade unfortunately. I've installed python2.5.2, numpy-1.1.1, pygtk-2.4 and they seem work ok. The relevant line is, gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/include/libpng12 -I/usr/local/include -I/usr/include -I. -Isrc -Iswig -Iagg23/include -I. -I/usr/include/freetype2 -I/usr/local/include -I/usr/include -I. -I/usr/local/include -I/usr/include -I. -I/usr/include/pygtk-2.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2/config -I/data/opt/include/python2.5 -c src/_gtkagg.cpp -o build/temp.linux-i686-2.5/src/_gtkagg.o In file included from /data/opt/include/python2.5/Python.h:8, from /usr/include/pygtk-2.0/pygobject.h:5, from src/_gtkagg.cpp:10: /data/opt/include/python2.5/pyconfig.h:942:1: warning: _POSIX_C_SOURCE redefined In file included from /usr/include/string.h:26, from /usr/include/c++/3.3.3/cstring:51, from src/_gtkagg.cpp:1: /usr/include/features.h:132:1: warning: this is the location of the previous definition In file included from src/_gtkagg.cpp:10: /usr/include/pygtk-2.0/pygobject.h:140: error: syntax error before `typename' /usr/include/pygtk-2.0/pygobject.h:147: error: syntax error before `typename' error: command 'gcc' failed with exit status 1 Thanks for any help, Venkat. - 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 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] Compilation problems on Fedora Core2.
On Tue, Oct 7, 2008 at 11:32 AM, Michael Droettboom [EMAIL PROTECTED] wrote: This is a known problem with old versions of pygtk. See here: http://osdir.com/ml/python.matplotlib.general/2004-11/msg00101.html See also this FAQ: http://matplotlib.sourceforge.net/faq.html#PYGTK24 - 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] compiling problems with py2.6, os 10.4
I don't think so - how would I find out? I haven't explicitly installed anything like that myself, so unless it's sipped with OS X, or was installed with some other package, I shouldn't have it. Nat On Oct 7, 2008, at 3:06 PM, Johann Cohen-Tanugi wrote: I think that the culprit is : src/backend_agg.cpp:3:17: error: png.h: No such file or directory and is in par with : libpng: found, but unknown version (no pkg-config) * Could not find 'libpng' headers in any of * '/usr/include', '/usr/X11R6/include', '.' Do you have the package libpng-devel, whatever the equivalent in Mac? Johann- 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] Can't seem to plot 2 horizontal lines on same plot
On Tue, Oct 07, 2008 at 12:54:49PM +0200, Johann Rohwer wrote: The autoscaling feature sets the y limits to [0,1] which means that your lines are falling on the bottom and top x-axis which hides them. Rescaling the y-axis will make the lines visible, e.g. pylab.ylim(-1,2) Thank you very much. That did it. cs - 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] Can't seem to plot 2 horizontal lines on same plot
On Tue, Oct 07, 2008 at 08:19:39AM -0400, Michael Droettboom wrote: Did you not get an exception when you ran your example? The following works for me: import pylab x1 = pylab.arange(-10, 10, 0.01) x2 = pylab.arange( 0, 10, 0.01) f1 = [0 for e in x1] f2 = [1 for e in x2] pylab.plot(x1, f1, x2, f2) pylab.show() The lines aren't visible when I do it. No exceptions given. cs - 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] Animation and imshow
loop through the data and call clf(): from pylab import * from numpy import * ion() hold(False) frame1 = zeros((200, 200)) frame1[20:40, 20:40] = 255 frame2 = zeros((200, 200)) frame2[20:40, 30:50] = 255 frame3 = zeros((200, 200)) frame3[20:40, 40:60] = 255 frame4 = zeros((200, 200)) frame4[20:40, 50:70] = 255 frame5 = zeros((200, 200)) frame5[20:40, 50:70] = 255 data=[frame1,frame2,frame3,frame4,frame5] for frame in data: m=imshow(frame) m.set_data(frame) clf() show() #close() Message: 2 Date: Tue, 7 Oct 2008 15:10:30 +0200 From: Alexander Borghgraef [EMAIL PROTECTED] Subject: [Matplotlib-users] Animation and imshow To: matplotlib-users@lists.sourceforge.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=ISO-8859-1 I'm trying to figure out how to do animated graphics in pylab using imshow, so I made this little 'hello world' equivalent showing a moving square over two frames. Problem is I have to call draw twice to refresh the image. Anyone can explain why this is so (and how to do this more elegantly)? This is the code: from pylab import * from numpy import * ion() hold(False) frame1 = zeros((200, 200)) frame1[20:40, 20:40] = 255 frame2 = zeros((200, 200)) frame2[20:40, 30:50] = 255 m = imshow(frame1) draw() # shows frame1 m.set_data(frame2) draw() # still shows frame1!!! draw() # and now it shows frame2!?? -- Alex Borghgraef -- 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
[Matplotlib-users] More digits on the plot window coordinate display?
Is there a way to display more digits on the cursor readout in the lower right hand corner of the plot window? Right now my setup is only showing three digits to the right of the decimal point, which isn't enough when I'm zoomed way in. If that description isn't good enough to describe what I mean, take a look at the following screenshot: http://sleepingsquirrel.org/matplotlib/low-resolution-coords.PNG ...or maybe I'm looking for a way to trace the individual displayed waveforms with the cursor, like on a digital oscilloscope, to ease in the taking of measurements. Any thoughts? Thanks, Greg - 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] More digits on the plot window coordinate display?
Buchholz, Greg wrote: Is there a way to display more digits on the cursor readout in the lower right hand corner of the plot window? Right now my setup is only showing three digits to the right of the decimal point, which isn’t enough when I’m zoomed way in. If that description isn’t good enough to describe what I mean, take a look at the following screenshot: Something like this (pylab-style example): def fmt(x): return %10.5f % x ax = gca() ax.fmt_xdata = fmt ax.fmt_ydata = fmt If the fmt_xdata and/or fmt_ydata attributes of the axes object are callable, they are used to format the cursor readout. Eric http://sleepingsquirrel.org/matplotlib/low-resolution-coords.PNG …or maybe I’m looking for a way to trace the individual displayed waveforms with the cursor, like on a digital oscilloscope, to ease in the taking of measurements. Any thoughts? Thanks, Greg - 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
