[Matplotlib-users] Links in pdf
Hi folks I know it is possible to handle events in the figure canvas to interact with plots and components of the figure, to even run shell commands, etc... I wish I could save include links in exported pdf file. Tell me whether it is possible to have a pdf file containing matplotlib plots on which I could click to run actions, in the same manner that pdf files can include clickable URL... More specifically, I have a figure with a bunch of nicely-formatted subplots and I embed this figure in a beamer presentation. I wish I could play the associated sound when I click on one of the subplots in Beamer (running a shell command). -- Fabrice Silva Laboratory of Mechanics and Acoustics (CNRS, UPR 7051) -- 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] imagsc comparison
Hello all, several of my colleagues and I are 99% sure we are making the change from IDL to python-matplotlib. I have just one issue that I am trying to work out that I need to solve. We are so far really impressed and looking forward to the change. I have seen discussion on this list about imagesc and imshow but none of them have quite answered the questions. In IDL we spent way too much time writing an clone that is still not full featured: http://people.bu.edu/balarsen/IDLdoc/imagesc.html I have data of probability distributions which have an X and Y array associated with the axes of the 2-d distribution (image). What I don't see how to do in any easy fashion is plot this data in a imshow() manner with the axes correct (which are unevenly distributed and need to be plotted on a log axes). This can be done with contourf(X,Y,Z) but this has a few issues: - I dont see how to do a log axes on a contour - contour is the wrong plot as the inherent smoothing that a contour does is highly undesirable. Using matlab imagesc one can easily make plots similar to: http://img269.yfrog.com/i/2dprob.png/ Imagine taking the above plot and make the pixels different sizes so that each pixel has identical counting statistics. Now assume that one wanted the Y-axis to be plotted in log. Anyone have any thoughts or toy examples? Thanks much, Brian -- --- Brian A Larsen RBSP-ECT Instrument Suite Scientist Boston University Center for Space Physics 725 Commonwealth Ave, Rm 506 Boston, MA 02215-1401 T: 617-358-4945 F: 617-353-6463 balarsen --at -- bu.edu -- 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] Links in pdf
Fabricio Silva si...@lma.cnrs-mrs.fr writes: I wish I could save include links in exported pdf file. Tell me whether it is possible to have a pdf file containing matplotlib plots on which I could click to run actions, in the same manner that pdf files can include clickable URL... This is not possible with the current pdf backend. I imagine it would not be too difficult to implement, but I am way too busy at work to do it any time soon. More specifically, I have a figure with a bunch of nicely-formatted subplots and I embed this figure in a beamer presentation. I wish I could play the associated sound when I click on one of the subplots in Beamer (running a shell command). Beamer comes with a package called multimedia, and I think it allows you to achieve something much like this -- see the \sound and \hyperlinksound macros. It might be difficult to make the hyperlink be exactly some subplot, but perhaps you could use e.g. speaker icons as link anchors and place them in suitable locations. -- Jouni K. Seppänen http://www.iki.fi/jks -- 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] axis on top for barh plot
28/11/09 @ 00:17 (+0100), thus spake Mike Anderson: Hi, How can I put the bottom axis on top (or on top AND on bottom) for a barh plot? I'm trying to mimic this, made with gnuplot: http://www.hep.wisc.edu/cms/comp/cmsprod/dCacheUserUsage.png within matplotlib, and I've come close, http://www.hep.wisc.edu/cms/comp/cmsprod/diskUserUsage.png Also, is it possible to just have grid lines in one direction (say, vertical), I don't think the horizontal grid is necessary. It's somewhat counter-intuitive, but it can be done. You have to create some twin axes with the twiny option, then make the plot on the twin axes so it will use the top axis. The bottom axis still have to be adjusted manually to make it match the top one and remove the labels. See this example: import matplotlib.pyplot as plt import matplotlib.ticker as ticker data = [21, 17, 18, 15, 14, 11, 9, 8, 4, 6, 7, 4, 5, 1, 3, 2, 0, 0] names = ['%s%s' % (a, b) for a in 'abcdefg' for b in 'abcdefg'][:len(data)] xlim = (0, max(data)+2) fig = plt.figure() ax1 = fig.add_subplot(1,1,1) ax2 = ax1.twiny() # actual plot ax2.barh(range(len(data)), data[::-1], 1, align='center', color='red') # x-axis ax2.set_xlim(xlim) ax1.set_xlim(xlim) ax1.xaxis.set_major_formatter(ticker.NullFormatter()) # y-axis ax2.set_ylim(-0.5, len(data)-1+0.5) ax2.yaxis.set_major_locator(ticker.FixedLocator(range(len(data ax2.yaxis.set_major_formatter(ticker.FixedFormatter(names[::-1])) # grid ax2.set_axisbelow(True) ax1.set_axisbelow(True) ax1.grid(True) plt.show() If you want only a vertical grid, use ax1.xaxis.grid(True) instead of ax1.grid(True). Bye. -- 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] Links in pdf
Le samedi 28 novembre 2009 à 17:04 +0200, Jouni K. Seppänen a écrit : More specifically, I have a figure with a bunch of nicely-formatted subplots and I embed this figure in a beamer presentation. I wish I could play the associated sound when I click on one of the subplots in Beamer (running a shell command). Beamer comes with a package called multimedia, and I think it allows you to achieve something much like this -- see the \sound and \hyperlinksound macros. It might be difficult to make the hyperlink be exactly some subplot, but perhaps you could use e.g. speaker icons as link anchors and place them in suitable locations. I have the second solution by now. But I hope I will succeed to make a clickable area match to each subplot, probably using tikz to set the size of the area. -- Fabrice Silva Laboratory of Mechanics and Acoustics (CNRS, UPR 7051) -- 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] [Newbie] question concerning color mapping
Hello, the np.random.randn() functions returns a list (or an array if given appropriate arguments) of normal distributed numbers. If x and y are also of length 100, each couple (x[i],y[i]) will be assigned a size size[i] and a color colours[i]. This happens not at all because of magic, but because the 's' and 'c' keyword arguments to scatter accept an array of number as the setting to give to each individual point. The routine scatter automatically finds the maximun and minimum in colours and give to each point a color value according to the default colormap. Details can be found in the docs: http://matplotlib.sourceforge.net/api/ pyplot_api.html#matplotlib.pyplot.scatter I could not find any newbie specific information on scatter. If you need help regarding a function, it is available at the command line. help(scatter) Pierre Le 26 nov. 09 à 11:06, David a écrit : Dear list, I recently came across the following code: In [7]: size = 50*np.random.randn(100) In [8]: colours = np.random.rand(100) In [9]: scatter(x, y, s=size, c=colours); In [10]: show() which works beautifully. My question though is this: why? I came to understand, with Google's help, that the randomly generated values (ranging between 0.0 and 1.0) for the variable colours are mapped to a color table, so that the generated value of, say, 0.21985792 is linked to a given color. This color is then used to paint one scatter point. I was unable to find helpful (i.e. newbie friendly) information on how this color mapping exactly works. Where is the table? The matplotlib documentation caused me confusion. Thanks for your kind help, David -- 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 -- 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] imagsc comparison
Brian Larsen wrote:
Hello all,
several of my colleagues and I are 99% sure we are making the change from IDL
to python-matplotlib. I have just one issue that I am trying to work out
that I need to solve. We are so far really impressed and looking forward to
the change.
I have seen discussion on this list about imagesc and imshow but none of them
have quite answered the questions. In IDL we spent way too much time writing
an clone that is still not full featured:
http://people.bu.edu/balarsen/IDLdoc/imagesc.html
I have data of probability distributions which have an X and Y array
associated with the axes of the 2-d distribution (image). What I don't see
how to do in any easy fashion is plot this data in a imshow() manner with the
axes correct (which are unevenly distributed and need to be plotted on a log
axes).
This can be done with contourf(X,Y,Z) but this has a few issues:
- I dont see how to do a log axes on a contour
- contour is the wrong plot as the inherent smoothing that a contour does is
highly undesirable.
Using matlab imagesc one can easily make plots similar to:
http://img269.yfrog.com/i/2dprob.png/
Imagine taking the above plot and make the pixels different sizes so that
each pixel has identical counting statistics. Now assume that one wanted
the Y-axis to be plotted in log.
Anyone have any thoughts or toy examples?
I am not sure I understand exactly what you want to do, but it sounds
like pcolormesh would do it. e.g. with ipython -pylab:
ax = gca()
ax.set_yscale('log')
x = np.arange(10)**1.5
y = np.arange(20)**1.8
z = x[1:] * y[1:, np.newaxis]
pcolormesh(x, y, z)
axis('tight')
Note that with x and y, which can be 1-D or 2-D, you are specifying the
grid boundaries, not the pixel centers.
Eric
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[Matplotlib-users] showing xlabel and ylabel with 1eX notation
Hello,
I am doing a plot and the x axis shows a small 1e7 indicating that the
numbers should be multiplied by that quantity, but the y axis does not
and is showing labels like 0.07
Why is that? I would like it to also use the 1eX notation
Any comment will be appreciated
Thanks,
Pau
This is my script
#!/usr/bin/env python
from pylab import *
# Create arrays
H01 = load ('./h01_skipi.txt')
H99 = load ('./h99_skipi.txt')
# Define elements
t_01 = H01[:, 0] # 1st column
hplus_01 = H01[:, 1] # 2nd
hcross_01 = H01[:, 2] # 3rd
t_99 = H99[:, 0] # 1st column
hplus_99 = H99[:, 1] # 2nd
hcross_99 = H99[:, 2] # 3rd
# Create upper plot
subplot (211) # 2 rows 1 column 1st plot
grid(True)
# For settings see page 22 users_guide
ylabel (r'$h_+\,(r/M)$', size=18)
plot(t_01, hplus_01 , \
linestyle='--', color='grey',
linewidth=3)
plot(t_99, hplus_99 , \
linestyle='-',color='red',
linewidth=1)
# Create lower plot
subplot (212)
grid(True)
ylabel (r'$h_x\,(r/M)$', size=18)
plot(t_01, hcross_01 , \
linestyle='--', color='grey',
linewidth=3)
plot(t_99, hcross_99 , \
linestyle='-', color='red',
linewidth=1)
xlabel ('t (sec)', size=18) # At the end, so that it's common to all
# Draw the thing
show()
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[Matplotlib-users] Bug in matplotlib.patches' contains() method?
Hi, I was trying to find out when a button_press_event happened inside a patch (tried Circle and Rectangle) using the contains(mouseevent) method, but it always seem to return True. I got the inspiration from the looking_glass.py example, which also doesn't work as (Ithink) it should. I know Ican do this the hard way, i.e. checking with event.xdata event.ydata, but I was really happy there was already a pre-defined method for doing so. Cheers, Jorge -- 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] A Simple Example of histogram Using Range?
See Subject. I don't seem able to produce a simple example of using histogram that uses range. I tried a variety of ranges, range=(0,22), range=(0, 50.2), ... and I see no difference between any of the x values scale. Can someone provide an example that shows how it works? -- Wayne Watson (Watson Adventures, Prop., Nevada City, CA) (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) Obz Site: 39° 15' 7 N, 121° 2' 32 W, 2700 feet 350 350 350 350 350 350 350 350 350 350 Make the number famous. See 350.org The major event has passed, but keep the number alive. Web Page: www.speckledwithstars.net/ -- 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] question about explicit tick labels
Hi All, I'm trying to create a set of strip charts so that I can see the relationships between a large number of time series. I'd like to label the y-axis with a name on the left side and a value/percentile on the right hand side. I can get the names on the left axis, and it looks very nice (yay Matplotlib!). When I try to the code below I don't get the output I'd like. None of the explicit tick labels that I'm setting make it to the display, and also the 3 charts on the page aren't kept separate (left tick labels from chart 132 hit the right tick labels from chart 131). Any suggestions very appreciated. import numpy as np import matplotlib.pyplot as plt nameN = 25 obsN = 50 names = [foo%d % x for x in range(nameN)] vols = np.random.uniform(0.2, 0.45, nameN) labels = ['ValA', 'ValB', 'ValC'] d1 = np.random.normal(0,1, obsN*nameN).reshape(obsN, -1)*vols d2 = np.random.normal(0,1, obsN*nameN).reshape(obsN, -1)*vols d3 = np.random.normal(0,1, obsN*nameN).reshape(obsN, -1)*vols f = 0.45 fig = plt.figure() for label, dset, ax_id in zip(labels, (d1, d2, d3), (131, 132, 133)): ax = fig.add_subplot(ax_id) for i in range(len(names)): mx = np.max(dset[:,i]) mn = np.min(dset[:,i]) y = i + dset[:,i]*2*f/(mx - mn) - f*(mx + mn)/(mx - mn) + 1 y_last = y[-1]*np.ones_like(y) x = np.arange(obsN) ax.fill_between(x, y_last, y) ax.set_ylim((0, nameN + 1)) ax.set_yticks(range(1, nameN + 1)) ax.set_title(label, fontsize=10) for tk, nm in zip(ax.yaxis.get_major_ticks(), list(reversed(names))): tk.tick1On = False tk.tick2On = False tk.label1On = True tk.label2On = True tk.set_label1(nm) tk.set_label2(%.1f\n(%.1f tile) % (36.2, 98.6)) #ytickNames = ax.set_yticklabels(list(reversed(names)), rotation = 45, fontsize = 8) plt.show() -- 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] Arrows between points in a plot?
Hi all, I have a plot that has say 6 black X's, each separate, and 6 blue X's, also separate, denoting where x's 1-6 have moved to (from black to blue). Currently each point is plotted with a separate plot function. I would like to generate a plot where each black x and blue x pair has an arrow pointing from one to the other. Currently I plot them like this: x1black = value y1black = value plot([x1black],[y1black],'kx',markersize=10,markeredgewidth=2) x1blue = value y1blue = value plot([x1blue],[y1blue],'bx',markersize=10,markeredgewidth=2) If I plotted, plot([x1black,x1blue],[y1black,y1blue]) I could make the line between them into an arrow, but I wouldn't be able to make one blue and the other black. Also, I'd like to be able to curve my arrows to make them less confusing in case they intersect too much. Can anyone point me to the right functions? Cheers Michael -- 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
