[Matplotlib-users] Multiple plots
Hi, I'm quite new to Matplot. When issuing show() from Python 2.5 under OS X I get a nice menu bar at the bottom with home, left, right etc. How can I use these? I tried the different examples, and there are plenty of examples that open multiple windows (such as legend_auto.py) and that put multiple subplots in a plot, but none that actually use the arrows. How can I put multiple plots into a window that can be navigated using these arrows? Cheers Niklas - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Multiple plots
On 3/16/07, Niklas Saers <[EMAIL PROTECTED]> wrote: > Hi, > I'm quite new to Matplot. When issuing show() from Python 2.5 under > OS X I get a nice menu bar at the bottom with home, left, right etc. > How can I use these? I tried the different examples, and there are > plenty of examples that open multiple windows (such as > legend_auto.py) and that put multiple subplots in a plot, but none > that actually use the arrows. How can I put multiple plots into a > window that can be navigated using these arrows? Those arrows are meant to navigate through the various zoom level you have chosen with the zoom tool (click on the zoom button the select a rectangle with the left mouse button to zoom in, with the right mouse button to zoom out). Home returns to the first zoom level. > Cheers > > Niklas Cheers, ~ Antonio - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] GTK backend problem
Hi, all. I have a problem when using matpltlib and pygtk. When I draw a very
very long line in a figure, the line cannot be drawn as it should be. For
example, consider the codes below:
-Beginning of codes--
#!/usr/bin/env python
import gtk
from matplotlib.figure import Figure
from matplotlib.lines import Line2D
from matplotlib.backends.backend_gtkagg import FigureCanvasGTK as
FigureCanvas
from matplotlib.backends.backend_gtkagg import NavigationToolbar2GTK as
NavigationToolbar
# Uncomment the two lines below to use GTKAgg as a different backend
#from matplotlib.backends.backend_gtkagg import FigureCanvasGTKAgg as
FigureCanvas
#from matplotlib.backends.backend_gtkagg import NavigationToolbar2GTKAgg \
# as
NavigationToolbar
win = gtk.Window()
win.connect("destroy", lambda x: gtk.main_quit())
win.set_default_size(400,300)
win.set_title("Embedding in GTK")
vbox = gtk.VBox()
win.add(vbox)
fig = Figure()
ax = fig.add_subplot(111)
ax.grid(True)
ax.set_autoscale_on(False)
ax.set_xlim(0, 2)
ax.set_ylim(-2, 2)
ax.plot([1, 1, 2,2], [-1, 1, 1, 0])
canvas = FigureCanvas(fig)
vbox.pack_start(canvas)
toolbar = NavigationToolbar(canvas, win)
vbox.pack_start(toolbar, False, False)
win.show_all()
gtk.main()
-End of codes--
You might think that it will show a line like this:
+...
|
A
very very long line
|
|
|
|
But the result is like this:
...--+
Also a very very long line ... |
|
|
|
You can view the picture here:
http://ljiaping.googlepages.com/embedding_in_gtk1.jpg
And if you use the zoom button in the navigation toolbar to zoom out this
image, the horizontal line will change its direction to right. You can view
the picture here:
http://ljiaping.googlepages.com/embedding_in_gtk2.jpg
But if you use GTKAgg as matplotlib's backend the figure shows properly.
Here is the source code file
embedding_in_gtk.py,
you can try it yourself.
I have tried to read the source codes of the library to know the reason, but
I have not enough knowledge of image processing and I failed.
Any help is appreciated. Thank you.
-
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[Matplotlib-users] troubles with plot_date
Hello - I am trying to plot two sets of data on one graph, using plot_date. But I get an error. It is easy to replicate, by calling the plot_date function twice. Is this supposed to work? from pylab import * plot_date(linspace(726468,726668,4),linspace(0,1,4)) plot_date(linspace(726468,726668,4),linspace(0,1,4)) And I get the error: Traceback (most recent call last): File "", line 1, in ? plot_date(linspace(726468,726668,4),linspace(0,1,4)) File "C:\Python24\Lib\site-packages\matplotlib\pylab.py", line 2064, in plot_date ret = gca().plot_date(*args, **kwargs) File "C:\Python24\lib\site-packages\matplotlib\axes.py", line 2395, in plot_date self.xaxis_date(tz) File "C:\Python24\lib\site-packages\matplotlib\axes.py", line 1564, in xaxis_date formatter = AutoDateFormatter(locator) UnboundLocalError: local variable 'locator' referenced before assignment Any ideas? Thanks, Mark - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] troubles with plot_date
On 3/16/07, Mark Bakker <[EMAIL PROTECTED]> wrote: > Hello - > > I am trying to plot two sets of data on one graph, using plot_date. > But I get an error. > It is easy to replicate, by calling the plot_date function twice. > Is this supposed to work? Fixed in svn - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] multiple plots for the color blind
Dear Experts, When plotting multiple lines, is there a way to have matplotlib automatically make the lines look different using something other than color to distinguish the lines? For example, it would be nice if I could issue multiple plot commands (with hold=True) and have the lines automatically select different markers or line styles. While matplotlib does make the colors different, this doesn't help much for people who are color blind. I checked the FAQ, cookbook, mailing lists, google, etc., but couldn't find a way to do this besides explicitly specifying the style for each line. Thanks, -Emin - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Problem to embed figure in Tk
Hi everybody, Would you have any idea how to embed a matshow (or imshow) object in a Tk application but with a given dimension ? Using FigureCanvasTkAgg embed a matshow object in my application but it takes the dimension of the matshow object not the dimension of the place where I would like to embed it. Thank you very much Best regards Eric Pellegrini - Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses.- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] source install question: WXAgg's accelerator requires the wxPython headers.
I am getting a message during a source install that WXAgg's accelerator requires the wxPython headers. What do I need to do to get them for Ubuntu? I think I have all wx packages installed? Do I need to download the source tarball from wxPython.org? If so, where should I put the headers? Ryan - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] source install question: WXAgg's accelerator requires the wxPython headers.
Dear Ryan, I think you want libwxgtk2.6-dev Ryan Krauss wrote: > I am getting a message during a source install that WXAgg's > accelerator requires the wxPython headers. What do I need to do to > get them for Ubuntu? I think I have all wx packages installed? Do I > need to download the source tarball from wxPython.org? If so, where > should I put the headers? > > Ryan > > - > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > ___ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Square/Circle markers with transparent, faces?
Hi, John T Whelan <[EMAIL PROTECTED]> wrote: > set markerfacecolor (a.k.a. mfc) = 'None' (make sure you include the > quotes). This works with plot: plot(randn(5),randn(5), 'bo', mfc="None", mec='b') but not with scatter: scatter(randn(5),randn(5), edgecolor='b', facecolor='None') returns: --> 141 self._facecolors = colorConverter.to_rgba_list(c) TypeError: c must be a matplotlib color arg or a sequence of them Is there a way to make 'transparent' markers with scatter? (this relates to an old thread, http://thread.gmane.org/gmane.comp.python.matplotlib.general/7842, but I'd like to know if there was any news about that?) Cheers. -- .~. Yannick COPIN (o:>* Doctus cum libro /V\ Institut de physique nucleaire de Lyon (IN2P3 - France) // \\ Tel: (33/0) 472 431 968 AIM: YnCopin ICQ: 236931013 /( )\ http://snovae.in2p3.fr/ycopin/ ^`~'^ - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] new release of basemap
All:
I just put a new release (0.9.5) of basemap on the sf download site.
Not much in the way of new features, mostly minor bugfixes, python 2.5
compatibility fixes and under-the-hood changes to facilitate building
eggs.
MacOS X and windows binary installers are available for python 2.4 and 2.5.
The examples are in a separate tarfile, since they are not included with
the binary installers.
The 'crude', 'low' and 'intermediate' boundary datasets are now
installed by default. If you need the 'high' resolution data, you can
download a separate 18 mb tar.gz and drop the files manually into
basemap_datadir ("from matplotlib.toolkits.basemap import
basemap_datadir" to find out what that is).
Windows users - please let me know if the binary installers work OK.
-Jeff
--
Jeffrey S. Whitaker Phone : (303)497-6313
Meteorologist FAX: (303)497-6449
NOAA/OAR/PSD R/PSD1Email : [EMAIL PROTECTED]
325 BroadwayOffice : Skaggs Research Cntr 1D-124
Boulder, CO, USA 80303-3328 Web: http://tinyurl.com/5telg
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[Matplotlib-users] Need quicker text drawing
Hi! I'm using matplotlib and I'm writing a viewer for multiple sequence alignments (read: large matrices of uppercase characters). It's coming along nicely and matplotlib is a real charm to work with. Unfortunately, I may have run into a showstopper. I've tried all tricks I can think of, I've searched bugs and mail archives and googled, but to no avail. The text labels just don't render quickly enough for comfortable browsing. The attached script test.py illustrates my problem. Run it, and then resize the plot window to trigger a redraw and you'll see what I mean. The rendering is really slow. I've also attached the output from "python test.py --verbose-helpful". Is there any way I can make this draw quicker? Am I doing this in a bad way? If so, what would be a good way? Cheers! /Joel matplotlib data path /usr/lib/python2.4/site-packages/matplotlib/mpl-data $HOME=/home/bioinfo/yohell CONFIGDIR=/home/bioinfo/yohell/.matplotlib loaded rc file /home/bioinfo/yohell/.matplotlib/matplotlibrc matplotlib version 0.87.7 verbose.level helpful interactive is False platform is linux2 numerix numpy 1.0 font search path ['/usr/lib/python2.4/site-packages/matplotlib/mpl-data'] loaded ttfcache file /home/bioinfo/yohell/.matplotlib/ttffont.cache backend GTKAgg version 2.8.6 import random import pylab aas = "ACDEFGHIKLMNPQRSTVWXY-" fig = pylab.figure() xmax = 100 ymax = 50 for iX in range(xmax): for iY in range(ymax): pylab.text(iX + 0.5, iY + 0.5, random.choice(aas), family = 'sans-serif', size = 6, horizontalalignment = 'center', verticalalignment = 'center') pylab.xlim(0, xmax) pylab.ylim(0, ymax) pylab.show() - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] source install question: WXAgg's accelerator requires the wxPython headers.
Thanks Andrew. I have that one already installed and it seems that either it isn't enough or it doesn't put the headers where the install script is looking for them. Should I be searching to see if a certain file is on my path? On 3/16/07, Andrew Straw <[EMAIL PROTECTED]> wrote: > Dear Ryan, I think you want libwxgtk2.6-dev > > Ryan Krauss wrote: > > I am getting a message during a source install that WXAgg's > > accelerator requires the wxPython headers. What do I need to do to > > get them for Ubuntu? I think I have all wx packages installed? Do I > > need to download the source tarball from wxPython.org? If so, where > > should I put the headers? > > > > Ryan > > > > - > > Take Surveys. Earn Cash. Influence the Future of IT > > Join SourceForge.net's Techsay panel and you'll get the chance to share your > > opinions on IT & business topics through brief surveys-and earn cash > > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > > ___ > > Matplotlib-users mailing list > > Matplotlib-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > > > - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] source install question: WXAgg's accelerator requires the wxPython headers.
On Mar 16, 2007, at 10:57 AM, Andrew Straw wrote: > > Dear Ryan, I think you want libwxgtk2.6-dev Unfortunately, the wxPython Debian package and its Ubuntu cousin do not include the wxPython headers. This is an issue that I looked into a while ago, but was unable to get resolved. That being said, you have three options for moving forward: 1. Just ignore the message. Unless you're doing animation you probably won't be hurting for speed. 2. Grab the wxPython headers from source and install them in `/usr/ include/wx/wxPython'. I believe that John Hunter has been doing this for some time now, so he might be able to help you if there are any caveats that I've forgotten. 3. Upgrade to wxPython 2.8 and the svn version of matplotlib. I've written a version of the accelerator in pure Python that moves at a pretty good clip but requires functionality that is only present in wxPython 2.8. Ken - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] source install question: WXAgg's accelerator requires the wxPython headers.
Thanks Ken. I think I did this before a year or so ago, I was just thinking there was an easier way. I guess I am a little stuck. I am hesitant to upgrade to wxPython 2.8 because wxGlade isn't compatible with it yet. I just went to wxPython.org and their sourceforge page doesn't have 2.6 source anymore. Unless someone has the wxpython 2.6 source tarball lying around, I guess I will ignore the message and wait until I am ready to upgrade to 2.8. Ryan On 3/16/07, Ken McIvor <[EMAIL PROTECTED]> wrote: > On Mar 16, 2007, at 10:57 AM, Andrew Straw wrote: > > > > Dear Ryan, I think you want libwxgtk2.6-dev > > Unfortunately, the wxPython Debian package and its Ubuntu cousin do > not include the wxPython headers. This is an issue that I looked > into a while ago, but was unable to get resolved. > > That being said, you have three options for moving forward: > > 1. Just ignore the message. Unless you're doing animation you > probably won't be hurting for speed. > > 2. Grab the wxPython headers from source and install them in `/usr/ > include/wx/wxPython'. I believe that John Hunter has been doing this > for some time now, so he might be able to help you if there are any > caveats that I've forgotten. > > 3. Upgrade to wxPython 2.8 and the svn version of matplotlib. I've > written a version of the accelerator in pure Python that moves at a > pretty good clip but requires functionality that is only present in > wxPython 2.8. > > Ken > - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] source install question: WXAgg's accelerator requires the wxPython headers.
On Mar 16, 2007, at 1:01 PM, Ryan Krauss wrote: > > Unless someone has the wxpython 2.6 source tarball lying > around, I guess I will ignore the message and wait until I am ready to > upgrade to 2.8. If you're got APT's "sources.list" setup correctly, you should be able to just "apt-get source libwxgtk2.6-dev". Ken - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] source install question: WXAgg's accelerator requires the wxPython headers.
Ryan, I found the 2.6 sources: http://wxpython.sourceforge.net/download-2.6.3.3.php Ken - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] source install question: WXAgg's accelerator requires the wxPython headers.
Thanks for the help Ken. I think I got it. The source install of libwkgtk2.6 doesn't seem to be enough (I still get the message about accelerator needing the headers). I have downloaded the 2.6 source tarball (thanks for finding it). I copied *.h from the wxPython-src-2.6.3.3/wxPython/include/wx/wxPython directory of the tarball to /usr/include/wx/wxPython. The message went away. I think that was all I needed to do. Ryan On 3/16/07, Ken McIvor <[EMAIL PROTECTED]> wrote: > Ryan, > > I found the 2.6 sources: > > http://wxpython.sourceforge.net/download-2.6.3.3.php > > Ken > - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] matshow?
Why does pylab.matshow() create a new figure by default when no other standard pylab function I know of does that? It seems very inconsistent for no particular gain, since as always figure();matshow(m) will achieve that result if that is what is desired. --bb - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matshow?
On 3/16/07, Bill Baxter <[EMAIL PROTECTED]> wrote: > Why does pylab.matshow() create a new figure by default when no other > standard pylab function I know of does that? It seems very > inconsistent for no particular gain, since as always > figure();matshow(m) will achieve that result if that is what is > desired. No: matshow has to create a figure with a non-standard size so that the final figure has the same aspect ratio as the array being displayed. If you call figure() first, the figure has already been created. The code: # Extract actual aspect ratio of array and make appropriately sized figure w,h = figaspect(arr) fig = figure(fignum,figsize=(w,h)) Cheers, f - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matshow?
On 3/17/07, Bill Baxter <[EMAIL PROTECTED]> wrote:
A pox on matplotlib's default reply-to-sender!
Resending my reply that went to Fernando alone below.
> On 3/17/07, Fernando Perez <[EMAIL PROTECTED]> wrote:
> > On 3/16/07, Bill Baxter <[EMAIL PROTECTED]> wrote:
> > > Why does pylab.matshow() create a new figure by default when no other
> > > standard pylab function I know of does that? It seems very
> > > inconsistent for no particular gain, since as always
> > > figure();matshow(m) will achieve that result if that is what is
> > > desired.
> >
> > No: matshow has to create a figure with a non-standard size so that
> > the final figure has the same aspect ratio as the array being
> > displayed. If you call figure() first, the figure has already been
> > created.
> >
> > The code:
> >
> > # Extract actual aspect ratio of array and make appropriately sized
> > figure
> > w,h = figaspect(arr)
> > fig = figure(fignum,figsize=(w,h))
>
I guess that makes sense.
Personally I'd rather have consistency. I'm not sure why matshow() in
particular needs to have the window shape match the image shape.
Why not just do axis('scaled') within the confines of the window you have?
Tried it out, it seems to work pretty well, and seems more consistent
with the way other things work in pylab.
def mymatshow(*args,**kw):
"""Display an array as a matrix in a new figure window.
The origin is set at the upper left hand corner and rows (first dimension
of the array) are displayed horizontally. The aspect ratio of the figure
window is that of the array, as long as it is possible to fit it within
your screen with no stretching. If the window dimensions can't accomodate
this (extremely tall/wide arrays), some stretching will inevitably occur.
Tick labels for the xaxis are placed on top by default.
matshow() calls imshow() with args and **kwargs, but by default it sets
interpolation='nearest' (unless you override it). All other arguments and
keywords are passed to imshow(), so see its docstring for further details.
Special keyword arguments which are NOT passed to imshow():
- fignum(None): by default, matshow() creates a new figure window with
automatic numbering. If fignum is given as an integer, the created
figure will use this figure number. Because of how matshow() tries to
set the figure aspect ratio to be the one of the array, if you provide
the number of an already existing figure, strange things may happen.
- returnall(False): by default, the return value is a figure instance.
With 'returnall=True', a (figure, axes, image) tuple is returned.
Example usage:
def samplemat(dims):
aa = zeros(dims)
for i in range(min(dims)):
aa[i,i] = i
return aa
dimlist = [(12,12),(128,64),(64,512),(2048,256)]
for d in dimlist:
fig, ax, im = matshow(samplemat(d))
show()
"""
# Preprocess args for our purposes
arr = asarray(args[0])
# Extract unique keywords we can't pass to imshow
kw = kw.copy()
fignum = popd(kw,'fignum',None)
retall = popd(kw,'returnall',False)
# Extract actual aspect ratio of array and make appropriately sized figure
w,h = figaspect(arr)
#fig = figure(fignum,figsize=(w,h))
fig = gcf()
cla()
ax = fig.add_axes([0.15, 0.09, 0.775, 0.775])
axis('scaled')
ax.xaxis.tick_top()
ax.title.set_y(1.05) # raise it up a bit for tick top
kw['aspect'] = 'auto'
# imshow call: use 'lower' origin (we'll flip axes later)
kw['origin'] = 'lower'
# Unless overridden, don't interpolate
kw.setdefault('interpolation','nearest')
# All other keywords go through to imshow.
im = ax.imshow(*args,**kw)
gci._current = im
# set the x and y lim to equal the matrix dims
nr,nc = arr.shape[:2]
ax.set_xlim((0,nc))
ax.set_ylim((nr,0))
draw_if_interactive()
if retall:
return fig, ax, im
else:
return fig
--bb
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Re: [Matplotlib-users] new release of basemap
>>> Jeff Whitaker <[EMAIL PROTECTED]> 3/16/2007 18:30 >>> I just put a new release (0.9.5) of basemap on the sf download site. ... Windows users - please let me know if the binary installers work OK. >>> Hi Jeff, Thanks for the great toolkit. I've just downloaded, installed and tested "basemap-0.9.5.win32-py2.4.exe" using a few quick examples. It seems to work OK :) Regards, Scott P.S. It might be worth knowing that removing basemap-0.9.4 broke my install of your grib2 library, which relied on 'pyproj.pyd' being visible to Python in the 'Lib\site-packages' directory, rather than being renamed '_pyproj.pyd' and moved to 'Lib\site-packages\matplotlib\toolkits\basemap' as it is now. Please find our Email Disclaimer here: http://www.ukzn.ac.za/disclaimer/ - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
