Le vendredi 17 avril 2015, oyster a écrit :
Two 8bpp(Gimp, xnview say so) graylevel png files can be downloaded
The first (ramp-gray.png) which gives right array shape is
http://bbs.blendercn.org/data/attachment/forum/201504/17/090627ejhixti8vdthdnnn.png
The second one (python-gray.png) which
Le jeudi 16 avril 2015, oyster a écrit :
Firstly, thanks, Fabrice Silva
I have checked my picture files again.
For python-gray.png, now it is attacched here or can be downloaded
from
http://bbs.blendercn.org/data/attachment/forum/201504/16/222351w3952n3o9968m9a5.png.
xnview says
Le vendredi 13 mars 2015 à 13:41 +0100, Fabrice Silva a écrit :
Le vendredi 13 mars 2015 à 10:59 +, Jens Nielsen a écrit :
Which program is that screenshot from? It is likely due to a bug in that
render. Since is displays normally in the browser. The plot lines are
clipped behind
Le vendredi 13 mars 2015 à 10:59 +, Jens Nielsen a écrit :
Which program is that screenshot from? It is likely due to a bug in that
render. Since is displays normally in the browser. The plot lines are
clipped behind the background but that obviously doesn't work correctly in
that case.
Le jeudi 19 février 2015 à 23:10 -0800, Peter Rowat a écrit :
I apologize for asking such a trivial question, but I’ve spent a long time
trying to fix this:
I have a large 2D array that displays as an image, with a colorbar on the
side.
I also display 2 curves on top of the image. i.e. in
Le lundi 20 octobre 2014 à 06:59 -0700, Tommy Carstensen a écrit :
Does anyone know, how they were able to add the legend titles damped
and oscillatory to this plot:
http://matplotlib.org/examples/pylab_examples/legend_demo.html
Hi,
it seems to me that you are looking to some deprecated
Le mardi 07 janvier 2014 à 15:19 +0100, V. Armando Solé a écrit :
Hello,
I am trying to add some vertical lines into a matplotlib figure axes.
The idea is to detect when the mouse passes over those lines in order to
displace them following the mouse if the left button is pressed.
I
Le mardi 07 janvier 2014 à 17:57 +0100, V. Armando Sole a écrit :
What about using axvline with the picker argument?
see http://matplotlib.org/users/event_handling.html
I think axvline is part of the pyplot interface that I am not using.
However your link is going to help me a lot. I
Hi,
Is there a way to save figures as Language Level 2 Encapsulated
PostScript ?
Hard coded header in backends/backend_ps.py (Lines 1109 and 1278)
writes:
%!PS-Adobe-3.0 EPSF-3.0
but in the same module, there is an ambiguous:
backend_version = 'Level II'
Regards,
To avoid (not so) rude answer like Mark's one, please try first to refer
to:
- the documentation of the pyplot's commands you use
http://matplotlib.sourceforge.net/api/pyplot_api.html
It tries (pretty well IMHO) to be comprehensive, at least for 99% of use
cases,
- you can set, once for all, the
Le jeudi 30 août 2012 à 19:48 +0200, Fabien Lafont a écrit :
I just create two vectors from a .txt file and I plot them.
I think I have the latest version of matplotlib. I have at least the
last version of python(x,y)
from pylab import*
import matplotlib
of the example image.
I see this behaviour too, on Chrome, version 20.0.1132.57.
Same on epiphany 3.4.2 (webkit 1.8.1)
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#matplotlib.pyplot.ginput
Pressing [enter] also terminates the points acquisition.
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Le jeudi 31 mai 2012 à 09:31 +0300, Yasin Selçuk Berber a écrit :
im getting that result.
but just wanted to know, could takes first row and put it most
bottomthen take secondetc expression be accepted as harmless or
not.
Seems to, it depends on the interpretation of the expression :)
On Sat, Feb 4, 2012 at 9:44 AM, Fabrice Silva si...@lma.cnrs-mrs.fr wrote:
Le vendredi 03 février 2012 à 17:39 +, David Craig a écrit :
sure how to get it to plot the outputs from specgram. I use
specgram as follows,
Pxx, freqs, bins, im = plt.specgram
Le vendredi 03 février 2012 à 17:39 +, David Craig a écrit :
sure how to get it to plot the outputs from specgram. I use
specgram as follows,
Pxx, freqs, bins, im = plt.specgram(..)
what am I trying imshow??
plt.specgram computes the spectrogram and when calls imshow to display
the
Le vendredi 03 février 2012 à 12:11 +, David Craig a écrit :
Hi, I am using matplotlib to produce some spectrograms for seismic
data. I am looking at a 10 day period with a sample rate of 20sps. I
would like to have my spectrogram to be composed of 10 minute windows
with an overlap of 90%.
data length, and you would rather use a
power of 2 for efficience. Do not use it to increase the frequency
resolution (use pad_to instead).
Fs = 100
NFFT = Fs*60*10
Pxx, f = plt.psd(data, NFFT, Fs, window=np.hanning(NFFT), NFFT/2)
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, detrend_mean, and detrend_linear) or use keyword
arguments as I did in the example.
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What about masked arrays ?
http://docs.scipy.org/doc/numpy/reference/maskedarray.html
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=fname)
ani.ffmpeg_cmd = gst_cmd
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= numpy.sign(x) * numpy.cos(x)
axes = pyplot.gca()
axes.set_ylim(-1.1, 1.1)
pyplot.plot(x, y)
idx = (x0)
pyplot(x[idx],y[idx])
idx = numpy.logical_not(idx)
pyplot(x[idx],y[idx])
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All of the data
Le lundi 19 septembre 2011 à 19:54 +0200, Klonuo Umom a écrit :
I want to use kaiser window that's part of numpy for drawing spectrogram
specgram(x, NFFT=256, Fs=2, Fc=0, detrend=mlab.detrend_none,
window=mlab.window_hanning, noverlap=128,
cmap=None, xextent=None,
, im = specgram(x, NFFT=1024, Fs=fs, window=wrapper, noverlap=2)
a wrapper is needed as specgram expects a function with a single argument (as
documented).
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--
All the data continuously generated in your
/pyplot_api.html#matplotlib.pyplot.specgram
and
http://matplotlib.sourceforge.net/api/axes_api.html#matplotlib.axes.Axes.imshow
Pxx, freqs, bins, im = specgram(x, NFFT=1024, Fs=fs, window=win,
noverlap=2, vmin=-120)
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Le mercredi 03 août 2011 à 14:45 +0200, Michael Klitgaard a écrit :
Hello,
I really like Python and Matplotlib, and recommend it to all my colleagues.
I have found this plot:
http://en.wikipedia.org/wiki/File:Operating_system_usage_share.svg
I think it looks good, it is made in R. The
',i,t,psi_Na, fig, image)
print i
plt.close()
# EOF
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removes the children of the figure so
that it has to delete the axes and its children (amongst which is the
AxesImage) and create new ones when you invoke imshow again.
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Le vendredi 17 juin 2011 à 12:00 +0200, Fabrice Silva a écrit :
Le vendredi 17 juin 2011 à 02:38 -0700, Alain Francés a écrit :
Hi,
This way the code creates empty images, it needs indeed some update where
you inserted the comment. However I'm not sure that the benefit in
term
) and create new ones when you invoke imshow again.
I simply removed the clf command!
It works now with this code (I just implemented fig.canvas.draw() as you
indicated)
So? what about timings and memory consumption?
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Fabrice Silva
Le mercredi 30 mars 2011 à 09:45 +0200, David Kremer a écrit :
Hello,
I'm using archlinux, with all up-to-date packages, and matplotlib
within a python2 environment.
When I use the zoom function, it seems the zoom is decreasing instead
of increasing. Actually, the exact behaviour is to
Le mercredi 30 mars 2011 à 13:49 +0200, Joachim Saul a écrit :
Fabrice Silva [03/30/2011 01:13 PM]:
Are you aware of the «zoom out to rectangle» feature (with right
click-n-drag, opposed to «zoom to rectangle» with left click-n-drag) ?
http://matplotlib.sourceforge.net/users
Le mardi 15 mars 2011 à 11:30 +0100, Giovanni Luca Ciampaglia a écrit :
Hi all,
I call savefig by passing to it a file-like object but it appears to not
get the graphics format right:
f = open('not_a_pdf.pdf', 'w')
plot([1,2,3])
savefig(f)
but it produces a PNG image. Can anybody
of the figure. Try:
Fig = F.matplotlib()
ax = Fig.get_axes()[0] # to get the first (and maybe only) subplot
line = ax.get_axes()[0]
xdata = line.get_xdata()
ydata = line.get_ydata()
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Le vendredi 04 juin 2010 à 15:25 +0200, Thøger Emil Juul Thorsen a
écrit :
Hello list;
I'm new to python/matplotlib, migrating from IDL. I need to do some
interactive point selection with mouse, and the pyplot.ginput() routine
seemed to be just the right thing here. I do however need to be
Le mardi 25 mai 2010 à 21:47 -0300, Carlos Grohmann a écrit :
Dears, I want to interpolate some irregular data using radial basis.
Can I interpolate only the data that falls inside a circle (or a
polygon)?
May these pages help you?
http://www.scipy.org/Cookbook/RadialBasisFunctions
FIY, with the help of Sylvestre Ledru (debian atlas maintainer), the
problem was solved installing libatlas3g-sse*.
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I notice that the illegal instruction does not occur when the figure
does not contain any axes.
Fabrice
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Some additional details
$ python
Python 2.5.5 (r255:77872, Apr 21 2010, 08:44:16) [GCC 4.4.3] on linux2
import numpy, matplotlib
numpy.__version__, matplotlib.__version__
('1.3.0', '0.99.1.1')
and the output of lsof just before the pointer enters the canvas
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$ lsof |grep 6352
daily update my
debian and, on wednesday, the package libatlas3gf-base has been updated
from 3.8.3-21 to 3.8.3-22. It seems that it had some side-effect on
matplotlib behaviour...
But why does the interpreter crash only when the pointer enters the
figure canvas??
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package). Since then the crash occurs automatically. Even a complete
remove/purge/install of the package does not solve the problem.
Any idea? Matplotlib's developers? Sandro (Debian maintainer) ?
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Le mardi 11 mai 2010 à 12:39 -0400, Jae-Joon Lee a écrit :
2) Do you plan on checking this into mpl trunk (still as a
mpl_toolkit module)?
Not at this moment. But, will consider if there is enough interest.
+1
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a particular backend other than GTK*...
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timeout, the selected points
are output.
Is it a bug related to the changes in 7591 ?
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Strangely, the green button points to
http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-0.99/matplotlib-0.99.0-py2.5-macosx-10.3-i386.egg/download
when I browse on a linux (debian) machine with epiphany (which uses
gecko, the firefox engine). Why macosx ?
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self.gex.remove()
in delex function.
An alternative is
self.axes.get_lines()[-1].remove()
so that you don't need self.gex for this.
Now, you need a function to interactively select the line. I don't have
a solution for that, but I'm interested too!
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is worth to be included as an mpl example.
I'll push this into the svn if you don't mind.
Great ! I assume a BSD license...
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only and not in 0.98.x
I tried to download the mpl.toolkits.axes_grid module files, but I had
errors raising when importing that...
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Hello everybody,
I wonder whether it is possible to produce something like the zooming
plot example from http://code.enthought.com/projects/chaco/gallery.php
using only matplotlib. I've done some tests, I think transforms may be
helpful but I do not know ho to use them...
to find something looking like the 'zoom
effect' Chaco provides...
I merely wanted to add a Polygon patch between the upper and the lower
subplots, but using data coordinates from these axes.
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Le lundi 29 juin 2009 à 14:39 +0200, Fabrice Silva a écrit :
I merely wanted to add a Polygon patch between the upper and the lower
subplots, but using data coordinates from these axes.
One more precision : my intent is to draw a figure 'statically', I do
not need event handling, ie handling
subplots, you may pay attention with the figure size, that you
can define with the 'figsize' and 'dpi' keyword arguments of the figure
function :
http://matplotlib.sourceforge.net/api/pyplot_api.html?#matplotlib.pyplot.figure
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LMA UPR CNRS 7051
.
As a solution, you may correct to
valine, = plt.plot(valist)
which unpack the list and extract the first item (the Line2D instance
you want) to valine.
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, sharex=S1)
S1, S2 and S3 will share the same x-range.
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Le lundi 10 novembre 2008, wbrevis a écrit :
I'm trying to plot one of my experimental data using scipy. Until now,
all the work I did was using Matlab. For one of my normal data-
visualization, I read ASCII or Binary files containing 4 columns: The
first contains the x coordinate, the second
.
Is it possible do proceed as using axvline, i.e. specifying the axes
coordinates? In this case, it would require a mix of data coordinate
(the value to display) and of axes coordinate (the bottom of the curve).
When would values to render be converted ?
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Le mardi 10 juin 2008 à 09:27 -0400, Tony S Yu a écrit :
Wow, a question I can actually answer:
ax1 = subplot(211)
ax2 = subplot(212)
ax1.plot([1,2,3])
ax2.plot([4,3,2])
ax1.plot([3,2,1])
I do prefer Tony's solution, but in a more pylab'ic (matlab'ic) way,
there is also:
Correction :
In the matplotlibrc, I have :
maskedarray : False
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Le lundi 12 mai 2008 à 11:08 +0200, Johann Cohen-Tanugi a écrit :
hello,
I have a function, which I am plotting. I want to add a line positioned
at, say, the mean of the function, so I want to do plot([x,x],[y0,y1]).
In order to get y0, and y1, my brute force trial and error browsing of
the
is perfectly ok.
(1) Has anyone experienced the same problem/bug in matplotlib?
(2) Any idea of a possible fix?
Since you turn hold to False, every new line that is added to axes (with
plot() or axvline()) deletes the existing lines. Removing p.hold(False)
may result in what you want.
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Le vendredi 24 août 2007 à 11:30 +0200, David Tremouilles a écrit :
OK I see... nothing straightforward...
Best way for me is maybe to implement such a system myself:
The system would collect the information to be saved by kind of
introspection of the figure.
I'm planning to save data and
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