Hi
I have been looking for an elegant/simple (working!) solution to create
new complex markers for matplotlib.
For example, I would like to design a new marker which is the union of a
set of vertices, for example (just an example), two petals which are
symmetric (see verts1 and verts2) and t
Dear all,
I have a set of Voronoi bins, defined by nodes (x,y) and an underlying
mesh of squared bins.
See an example here of such Voronoi bins.
http://www.google.fr/imgres?q=voronoi+binning&hl=fr&sa=X&biw=1280&bih=665&tbm=isch&prmd=imvnsb&tbnid=zp0RRIktKlF9pM:&imgrefurl=http://www.aanda.org/art
Ok problem(s) solved, thanks a lot for the efficient help (this also taught me
how to go through the code more thoroughly)
* for the record: I had a pylab.py in the site-packages directory, probably a
left-over from some other installation, which was interfering with the pylab.py
which should b
Dear Ben
thanks a lot for this thoughful answer.
When I use only "ipython" and not "ipython -pylab" IT WORKS!!!
So this is a problem with "ipython -pylab" call...
Any thought of why this is?
I provide more info below
thanks for any help there.
Eric
P.S.: Here is the output of my setup:
In [
yes, it looks like this is the right file (when I look at matplotlib.__file__)
Now tracing which routines are run when doing this, it looks like it looks for
projection in projections/__init__.py
after going through line 675 of figure.py
It looks like add_subplot of plt.figure() is not compatible
Dear Ben
thanks a lot for the quick reply.
I did that (and read some posts on the web) but no luck, as it says:
1.0.0
I in fact just went back to my openSuse 11.3 (Science repo) version because it
went really wrong with scipy etc and I didn't want to mess up my setup. But
still the same messa
Hi,
I have just installed the svn version of matplotlib and basemap + numpy from
the
svn repository of
http://download.opensuse.org/repositories/home:/ocefpaf/openSUSE_11.3/x86_64/
When I do:
===
ipython -pylab
(matplotlib 1.0.0, backend GTKAg
Hi
I just upgraded to opensuse 11.3.
And I get now:
ipython -pylab:
matplotlib version 1.0.0
verbose.level helpful
platform is linux2
*Segmentation fault*
Any clue?
I am using IPython 0.10, Python 2.6.5
Eric
--
S
Hi
thanks a lot for the feedback.
Just tested with Qt4Agg and the window is coming up in the right location (just
below my xterm where there is still space for a new window) now, and sometimes
on TOP, but also sometimes at the BOTTOM I was using WxAgg before.
So it seems it is backend depe
Hi
I have one very nagging issue which I would like to solve with matplotlib once
and for all: this may have to do with my desktop windown manager but I couldn't
find much there, so any input is welcome.
When I open a new figure, the figure ALWAYS comes BELOW my current xterm (using
KDE 4.3) a
Hi
I just downloaded numpy 2.0 and there is a test in the setupext.py of
matplotlib
which says:
nn = numpy.__version__.split('.')
if not (int(nn[0]) >= 1 and int(nn[1]) >= 1):
This clearly does NOT work for numpy 2.0.0 since nn[1] is 0
Please change this.
Eric
-
Hi
I am using "verts" in the matplotlib scatter function and managed to
create many new symbols for scatter plots. One I cannot make is a
spiral-like symbol (logarithmic spiral) because it does connect the
first and last point of the verts series of x,y points I am defining. Is
there a way to avoi
Thinking about it: when matplotlib transfer the plot to ghostscript, is
there a parameter in the call for "gs" which limits the memory usage???
It seems that this is discussed in some posts about gs
Eric
On 09/01/10 04:25, Jae-Joon Lee wrote:
> I can reproduce this error with the current svn.
>
; ax3.set_rasterization_zorder(0.6)
>
> This code needs to be inside the for-loop so that all the pcolormesh
> plots get rasterized.
> Also, note that, in your current script, the third pcolormesh plot is
> assigned to "map2", instead of "map3"
Hi
I finally managed to write a simplified version of my python script
which crashes when trying to save the figure as a postscript file. (this
is related to a previous post). See below. The script is provided, as
well as the full error message.
Sorry for the long script, but basically I am plott
Hi
I am having reccurrent problem generating postscript files using savefig.
I am basically generating a figure with lots of small thumbnail images
(loaded with mpl pcolormesh and contour) and some overimposed text.
When I do:
savefig("myfig.eps")
it takes quite a while, and makes rather big fi
great. Thanks! I had a look at the thumbnails but didn't find the one
you point out. (And the doc is confusing)
Thanks!
and yes, very weird behaviour when the two arrays have the same length...
Eric
On 30/12/09 19:53, Jae-Joon Lee wrote:
> x1 = random(1000)
> x2 = random(1000)
>
> n, bins, pat
'm not sure if it is
> related.
>
> http://old.nabble.com/Segmentation-fault-with-EPS-output-on-matplotlib->%3D0.98.5.2-to25257581.html#a25334270
>
> So, see if using "xpdf" as a distiller works.
>>
--
==
Hi
how do I specify the colour of the bars in an histogram done with more than one
set of data?
Example:
x1 = random(1000)
x2 = random(1000)
hist([x1,x2], c=['r','b'])
does not work...
I have tried with rgba sequences but no luck there. The help of hist
<< color: matplotlib color arg or sequ
Hi again
regarding my last post, I still have pb generating simple eps files.
Now I turned on "usetex" to True and I get the message given below. If
anyone can help me with this, it would be great since I am now stuck
with this.
Reminder: the pb occurs when I save a figure (savefig) in postscript
sorry, I just found the simple way out and so I am answering my own post: use
Agg instead of GtkAgg...
sorry for the dummy question and the inconvenience,
and have a nice end of 2008
cheers
> I am trying to run a relatively large code, which includes some calls to and
> import from pylab/matpl
Hi,
I am trying to run a relatively large code, which includes some calls to and
import from pylab/matplotlib, on a remote machine: the part of the code I am
running is NOT performing any plot so there is no direct access to a display.
Unfortunately it still crashes with something like:
---> 40
running the last ipython version now (0.9.1), and it does not help (got stuck
the same way).
The difference now is that ipython provides a message:
Warning: Timeout for mainloop thread exceeded
switching to nonthreaded mode (until mainloop wakes up again)
It seems that ipython developers did cat
:08:00 +0100
>> From: Eric Emsellem <[EMAIL PROTECTED]>
>> Subject: [Matplotlib-users] pylab or not... crashes or not
>>
>> - when I start a session with "ipython -pylab" I often get crashes
>> with my
>> session. When I mean "often", it me
Hi
this may be a known problem (didn't find anything on this issue) but here it is:
- when I start a session with "ipython -pylab" I often get crashes with my
session. When I mean "often", it means really often like once everything 1/2h or
so. A crash means that the command I just sent gets stuck
Hi,
thanks for the input.
In fact this happens on a dual core machine. As for the Ipython version etc it
is written at the end of my original email.
I'll try to see with the Ipython forum maybe. Not sure where it comes from,
which is the difficult part (mpl, ipython, or...?)
I'll also try to iso
Hi,
I am having a recurrent (and very annoying) problem with plotting.
Basically: I enter my Ipython session (with -pylab), execute a few commands from
locally developed modules, and then try to make one plot. The plot does not
appear (I don't get back the command line), and my session is then c
Hi
a quick note abut a "super package":
to let people know that now OpenSuse 10.3 has a set of RPMs for all scipy,
numpy, mpl, ipython, and others some of these being on the "science" repository,
e.g.:
http://download.opensuse.org/repositories/science/openSUSE_10.3/x86_64/
for the 64b distrib (ip
Hi,
is there a plan (or an existing command) to have set_extent working for
contours, as was recently done for imshow? I know that "contour" has
different inputs since you can specify X,Y, the data coordinates.
However, I would like to do something like:
...
co = contour(data, extent=(0.,2.,0.,2.
Hi
thanks a lot for this feedback!
Your example is quite nice indeed. However there is something I may not
have fully understand.
If I use the example you sketch, I of course need to call the displayer
class (right?), by doing something like:
test = displayer()
However, then I hit the same prob
Hi
sorry to post this again but all my attempts to solve the matplotlib
problem below failed and I desperately need this to progress.
I would like to use mpl_connect and disconnect to examine a series of 2d
arrays in turn (with a "for" loop), one after the other:
==> at each iteration I'd like t
Hi,
I have a "simple" problem with mpl, but didn't find a way to solve it so
far.
Let's say I have a set of three 2Darrays I would like to :
- load using imshow
- then connect to the mouse click event and add all X and Y coordinates
obtained when clicking
(so each time I click, I'll get xc += ev
Hi,
a problem that I have since some time now using mpl: everytime I start
plotting, I get something like:
(python:6374): GnomePrintCupsPlugin-WARNING **: iconv does not support
ppd character encoding: ISOLatin1, trying CSISOLatin1
I know this is not really a mpl problem, but if anybody has a cl
Thanks a lot for adding it in svn (I indeed did the change myself in my
pylab.py).
cheers and thanks again for the quick and positive response!
Eric
John Hunter wrote:
> On 2/13/07, Eric Emsellem <[EMAIL PROTECTED]> wrote:
>
> At the time noone wanted it, but it's easy e
Hi,
I would need the equivalent of twinx, but for other axis, so a "twiny"
function. Shouldn't it be in mpl already?
thanks for your help,
Eric
-
Using Tomcat but need to do more? Need to support web services, security?
Get
Dear all,
I am coming back to an issue for which I didn't get a direct answer
(except for a very nice module from Angus McMorland!):
- at the moment different backends in mpl automatically provides, when
an image (or a plot) is displayed with e.g. imshow (plot), the
coordinates x and y directly i
** my text does not appear fully (some part is blanked, and changing
the bbox does not seem to do much)
Eric
John Hunter wrote:
"Eric" == Eric Emsellem <[EMAIL PROTECTED]> writes:
great! but one question though: I need to put the text with figtext and
thus use figure coordinates (instead of pixel coord).
So how would I replace the :
matplotlib.transforms.lbwh_to_bbox
?
thanks
Eric
John Hunter wrote
> def ondraw(event):
> l,b,w,h = t.get_window_extent(event.renderer).
Hi again,
thinking about the module I am writing which will include a "move mouse
event" to get the intensity of the pixel in an imshow provided in the
figure I am wondering:
- would it make any sense to DIRECTLY include such a facility (intensity
of pixel provided for an imshow, figimage...) NEXT
Hi,
thanks for this useful and quick answer. I am (always) using GTKAgg
(hope it is a good choice). I understand the 40 Mb part then, but not
the 150-200 Mb... (this happens when I move the cursor within the figure
window only and things get worse when I reload the data with a new imshow).
Two th
Hi,
I am writing a small module to easily load images and interact with
them. I now face a memory usage +CPU problem, which may in fact be the
result of a normal behaviour of matplotlib (but more certainly something
I am not doing right), but I really like to be sure here because if
confirmed, it
machine (linux) with svn, but I don't see anything
> about this in CHANGELOG.
>
> Eric
>
> Eric Emsellem wrote:
>> hi,
>>
>> I am trying to have text written on 2 lines, but everything is written
>> on a single line. Is that normal?
>>
>&g
hi,
I am trying to have text written on 2 lines, but everything is written
on a single line. Is that normal?
here is an example:
plot(arange(10))
ylabel('this is vertical \n test')
text(0.5,0.5,"this is a test \n but does not work")
thanks
Eric
===
Suse 10.1
matplotlib versi
!!
Eric
--
====
Eric Emsellem [EMAIL PROTECTED]
Centre de Recherche Astrophysique de Lyon
9 av. Charles-Andretel: +33 (0)4 78 86 83 84
69561 Saint-Genis Laval Cedex fax: +33
')
## ==> the symbols overlap but the transparency is gone
--
====
Eric Emsellem [EMAIL PROTECTED]
Centre de Recherche Astrophysique de Lyon
9 av. Charles-Andretel: +33 (0)4 78 86 83 84
69561 Sai
ere is the full report generated by ghostscript: \
1335 \n\n'% dvifile + fh.read())
NameError: global name 'dvifile' is not defined
--
Eric Emsellem [EMAIL PROTECTED]
Hi,
I have a problem when importing numpy from matplotlib.numerix:
When I do:
import matplotlib
import matplotlib.numerix as num # numpy
from num import median, std
I get:
exceptions.ImportError Traceback (most
recent call last)
ImportErr
Hi,
I just produced a plot with a curve dashed line:
when saving it into a png file it works fine.
But when saving it in a postscript the dashed line looks solid on most
of the plot.
This happens if there are too many points in the line:
x = arange(0,1.,0.0001)
y = sqrt(x)
plot(x,y,'k--')
## Png
sically, I
just copied the guts out of the axes.image.AxesImage.make_image code
to experiment with adding a rotation
from matplotlib.image import AxesImage
from pylab import subplot, show, nx
...
--
====
Eric Emsellem
Hi,
this is a question I have posted earlier, but unfortunately I didn't get
any answer.
if anybody has any hint on how to do this, I would be most graceful!!
Thanks in advance!
I would like to visualize an image after a rotation:
==> this means to view each squared pixels as "rotated" (seen as a
Hi,
I would like to visualize an image after some rotation: this means that
I would like to have to view each squared pixels as "rotated" (hence an
inclined square). I have in fact several images which I need to plot on
the same figure (with subplot), each of these having different "rotation
angle
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