Re: [Matplotlib-users] delete instance of axvspan
On Tuesday 12 February 2008 12:07:21 Michael Frauens wrote: I am using span selector to identify an area and then highlight in in green. I want the user to be able to validate this (or not) and then select another area (or not). However, when the user selects the alternate area I want the previous instance of axvspan to be deleted/removed. How do I remove this instance? of do I have to delete the whole plot and replot? Removing the instance is strongly preferred becauase the user may of altered the display using the canvas widgets. Michael, I have more or less the same issue: I need to be able to highlight one particular curve among many. I have implemented a special subclass of Axes for my particular problem. This subclass has a method highlight Here's a rough draft of what I do: def __init__(self,*args,**kwargs) Subplot.__init__(self,*args,**kwargs) sefl.highlightedfreq = None def highlight(bandwidth, **options): if (self.highlightedfreq is not None) and \ (self.highlightedfreq != bandwidth): del self.lines[self.highlightedline] self.highlightedfreq = bandwidth self.plot(current._dates-shift, current._series, lw=lw, ls=ls, c=c, scalex=False, scaley=False) self.highlightedline = len(self.lines)-1# return self.highlightedline As you see, I have an extra attribute (highlightedfreq) that stores the index of the highlighted line: when I need to deselect the highlighted curve, I just delete the corresponding element of the lines list. HIH P. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] plotting from xemacs always 1 step behind
Phil Austin wrote: John Hunter wrote: Well, the problem is that GTK, WX and Qt require threading support to use them properly interactively. ipython has special modes for these to run the GUI mainloop in the separate thread. tk is special in this regard, in that it runs from a standard python shell w/o threading support. You may be able to configure ipython within xemacs to take advantage of both xemacs and ipython's support for interactive qt plotting in pylab. FWIW, everything's working correctly for me using xemacs + ipython: Xemacs 21.5 current svn snapshot of python-mode.el from http://sourceforge.net/projects/python current ipython svn snapshot Centos 5.1 and python 2.5.1 Works for me if invoked from xemacs shell as ipython -pylab. If invoked from M-x py-shell doesn't work. Now if I could just figure out where to modify the way py-shell invokes ipython to add the -pylab. Doc say C-u M-x py-shell would prompt for args, but the doc lies. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] plotting from xemacs always 1 step behind
On Feb 12, 2008 12:17 PM, Neal Becker [EMAIL PROTECTED] wrote: If invoked from M-x py-shell doesn't work. Now if I could just figure out where to modify the way py-shell invokes ipython to add the -pylab. Doc say C-u M-x py-shell would prompt for args, but the doc lies. You can probably get help with this on the ipython mailing list. JDH - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] plotting from xemacs always 1 step behind
John Hunter wrote: On Feb 12, 2008 12:17 PM, Neal Becker [EMAIL PROTECTED] wrote: If invoked from M-x py-shell doesn't work. Now if I could just figure out where to modify the way py-shell invokes ipython to add the -pylab. Doc say C-u M-x py-shell would prompt for args, but the doc lies. I use: (require `python-mode) ; for python-mode.el from http://sourceforge.net/projects/python ; If you are using the default emacs python-mode, comment out the following ; two lines (setq py-shell-switch-buffers-on-execute nil) (setq py-python-command-args '(-pylab -colors LightBG -p phil)) (require `ipython) - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] basemap and omerc
Hi, I am having some problems using the oblique mercator projection in basemap. I want to define a rectangular orthogonal grid, rotated clockwise by about 13 degrees. I want to define grid cells of size, say, about 20x20 km. The script I have so far is below. The problem is that at some point (the makegrid step) I lose the rotation, as seen in the plot. I'd appreciate any help with this, thanks, Evan from matplotlib.toolkits.basemap import Basemap M = Basemap(projection = 'omerc', \ resolution = None, \ llcrnrlon = -43.7, \ llcrnrlat = 14.7,\ urcrnrlon = -4.0,\ urcrnrlat = 41.9,\ lat_2 = 11.0,\ lat_1 = 45.5,\ lon_2 = -27.8, \ lon_1 = -19.9) dl = 2. nx = int((M.xmax - M.xmin) / dl) + 1 ny = int((M.ymax - M.ymin) / dl) + 1 lonr, latr = M.makegrid(nx, ny) plot(lonr, latr, 'c.') show() - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] delete instance of axvspan
On Feb 12, 2008 12:23 PM, Pierre GM [EMAIL PROTECTED] wrote: self.plot(current._dates-shift, current._series, lw=lw, ls=ls, c=c, scalex=False, scaley=False) self.highlightedline = len(self.lines)-1# return self.highlightedline As you see, I have an extra attribute (highlightedfreq) that stores the index of the highlighted line: when I need to deselect the highlighted curve, I just delete the corresponding element of the lines list. I haven't tested this, but a more direct route may be (plot returns a list of lines and the myline, idiom extracts the first element into the variable myline) myline, = ax.plot(x, y, ...) and then later when you want to remove: ax.lines.remove(myline) Hope this helps, JDH - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] plotting from xemacs always 1 step behind
John Hunter wrote: Well, the problem is that GTK, WX and Qt require threading support to use them properly interactively. ipython has special modes for these to run the GUI mainloop in the separate thread. tk is special in this regard, in that it runs from a standard python shell w/o threading support. You may be able to configure ipython within xemacs to take advantage of both xemacs and ipython's support for interactive qt plotting in pylab. FWIW, everything's working correctly for me using xemacs + ipython: Xemacs 21.5 current svn snapshot of python-mode.el from http://sourceforge.net/projects/python current ipython svn snapshot Centos 5.1 and python 2.5.1 -- Phil - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] pyinstall and matplotlib
Has anybody been able to create an exe of their python applications involving matplotlib using pyinstall (ver 1.3)? I am getting a: RuntimeError: Could not find the matplotlib data files when I attempt to run the exe created. In searching the web, it appears this is an issue when others tried to use py2exe as well. Unfortunately, the few hits I saw doesn't include enough details to inspire me as to what I should be doing in my pyinstall .spec file. Does anybody has an example or information about this? Thanks, -- John Henry - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] delete instance of axvspan
I am using span selector to identify an area and then highlight in in green. I want the user to be able to validate this (or not) and then select another area (or not). However, when the user selects the alternate area I want the previous instance of axvspan to be deleted/removed. How do I remove this instance? of do I have to delete the whole plot and replot? Removing the instance is strongly preferred becauase the user may of altered the display using the canvas widgets. f=Figure(figsize=(12,8), dpi=72) a=f.add_subplot(111) ... a.plot(aTime, aDensity, 'k', aTime, aElec, 'b') ... canvas = FigureCanvasTkAgg(f, master=root) canvas.show() canvas.get_tk_widget().pack(side=Tk.TOP) . def onselect(timemin,timemax): indmin,indmax=npy.searchsorted(glbl.act_time[glbl.newjob],(timemin,timemax)) indmax=min(len(glbl.act_time[glbl.newjob])-1,indmax) thistime=glbl.act_time[glbl.newjob][indmin:indmax] exec(thisDens=glbl.%s_d[%d][indmin:indmax] % (newcolor, glbl.newjob)) exec(thisElect=glbl.%s_d[%d][indmin:indmax] % (newcolor, glbl.newjob)) print thisDens #creates a reference green area to validate area chosen lo=glbl.act_time[glbl.newjob][indmin] hi=glbl.act_time[glbl.newjob][indmax] a.axvspan(lo,hi,facecolor='g',alpha=0.5) canvas.show() ... span=SpanSelector(a,onselect,'horizontal',useblit=True, rectprops=dict(alpha=0.5,facecolor='red')) Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] exceptions from easy_install matplotlib
Should I be worried about these? Installed /usr/lib/python2.5/site-packages/matplotlib-0.91.2-py2.5-linux-x86_64.egg Processing dependencies for matplotlib Finished processing dependencies for matplotlib Exception exceptions.OSError: (2, 'No such file or directory', 'src/image.cpp') in bound method CleanUpFile.__del__ of setupext.CleanUpFile instance at 0xee08c0 ignored Exception exceptions.OSError: (2, 'No such file or directory', 'src/transforms.cpp') in bound method CleanUpFile.__del__ of setupext.CleanUpFile instance at 0xedcc68 ignored Exception exceptions.OSError: (2, 'No such file or directory', 'src/backend_agg.cpp') in bound method CleanUpFile.__del__ of setupext.CleanUpFile instance at 0xee0710 ignored - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Basemap 0.9.9 ImportError
Ryan May wrote: Ryan: Nothing comes immediately to mind - unless something went wrong with your build.Could you rebuild basemap and send me the a log of the build off-list? Attached. Ryan Ryan: Are you installing from source yourself, or building a patched version provided the Gentoo packaging system? I suspect the latter, since I see Unpacking basemap-0.9.9.tar.gz to /var/tmp/portage/dev-python/basemap-0.9.9/work [32;01m*[0m Applying basemap-0.9.9-syslib.patch ... at the beginning of the log. Then later, the system proj4 lib (in /usr/lib64) is linked instead of the proj4 included in basemap. This won't work, since the version of proj4 that I use includes some patches not in the released version. Bottom line - the Gentoo basemap package is broken. If you build it manually, outside the Gentoo packaging system, I'm betting it will work fine. A Gentoo bug report might be in order, if you feel like submitting one. -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 - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] plotting from xemacs always 1 step behind
On Feb 12, 2008 8:50 AM, Neal Becker [EMAIL PROTECTED] wrote: I did set interactive. I was using QtAgg. I hate tk. [reposting in the correct thread] Well, the problem is that GTK, WX and Qt require threading support to use them properly interactively. ipython has special modes for these to run the GUI mainloop in the separate thread. tk is special in this regard, in that it runs from a standard python shell w/o threading support. You may be able to configure ipython within xemacs to take advantage of both xemacs and ipython's support for interactive qt plotting in pylab. JDH - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] healpix and basemap
Has anyone had any luck plotting a Healpix (sky pixelization used in astronomy) map using matplotlib basemap... or any other python plotting package for that matter? Cheers, Jessica - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] plotting from xemacs always 1 step behind
On Feb 12, 2008 6:49 AM, Neal Becker [EMAIL PROTECTED] wrote: This is a bit wierd. If running from xemacs, it seems interactive plotting is always 1 step behind. I assume you have set 'interactive : True' in your rc file? What backend are you using (you should be using tkagg from xemacs) since it does not require GUI threading support. http://matplotlib.sf.net/interactive.html JDH - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] plotting from xemacs always 1 step behind
This is a bit wierd.
If running from xemacs, it seems interactive plotting is always 1 step
behind.
For example, I do:
M-x py-shell
This brings up a *Python* buffer in Comint mode running Ipython.
In [1]: from pylab import *
In [2]: plot ([1,2,3])
Out[2]: [matplotlib.lines.Line2D instance at 0xf563b0]
In [3]: xlabel('time')
Out[3]: matplotlib.text.Text instance at 0xf52758
In [4]: ylabel ('volts')
Out[4]: matplotlib.text.Text instance at 0xf533b0
When I execute step 3, the time is not show, but the line is. When I do
step 4, now time is added.
Any clues?
-
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