Re: [Matplotlib-users] Basemap help, imshow, transform_scaler
John, Attached is a script illustrating how to make contourf plots with a log colorscale. I made some improvements in svn, as noted in the script, but you can still do it with the regular mpl release. All of this should carry through to basemap with no changes in basemap. Eric John wrote: Well, it seems like I'm making progress, but it's stll not the plot I'm hoping to produce. Something seems strange. First, it does create a contourf plot, but I really need to take log(zdata) and use imshow (which seems to handly the INF issue, wheras contourf crashes). On another issue though, once the image is created, when I draw the map components it covers the image entirely.. so I just see coastlines, meridians, etc on a whilte background as if I had never plotted the data. Thanks for helping with this! I'm really trying to make a movement with my colleagues away from matlab, but I need to have things operating more smoothly... lately it hasn't been going so well. This is a great product you've made! - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users ''' Demonstrate use of a log color scale in contourf ''' import pylab as P # or from matplotlib import pyplot as P if you are using svn import numpy from numpy import ma from matplotlib import colors from matplotlib import ticker z = numpy.arange(1, dtype=float) z.shape = 100,100 z = numpy.power(10, 5*z/z.max()) # Put in some negative values to cause trouble with logs: z[:5, :5] = -1 # The svn version will do the following automatically, and # print a warning; but with the released mpl you must do it # yourself. z = ma.masked_where(z= 0, z) lev_exp = numpy.arange(0, numpy.log10(z.max())+1) print z.max(), z.min() print lev_exp levs = numpy.power(10, lev_exp) # With svn, automatic selection of levels works; setting the # locator tells contourf to use a log scale: #cs = P.contourf(z, locator=ticker.LogLocator()) # but with the current mpl release, you must carefully # set the levels yourself, and set the norm like this: cs = P.contourf(z, levs, norm=colors.LogNorm()) # Of course the form above still works in svn also. #The 'extend' kwarg, however, does not work yet with a log #scale either in the release or in svn. cbar = P.colorbar() P.show() - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] IDL Font question
IDL uses the Hershey vector fonts http://www.ifi.uio.no/it/latex-links/STORE/opt/rsi/idl/help/online_help/Hershey_Vector_Font_Samples.html The problem is that these are not trutype fonts, so the easiest solution is probably to find some free sans-serif font that looks close to Hershey on a free font site. HTH, Gary R. Jose Gomez-Dans wrote: Hi, Some colleagues have sent some plots which they generated using IDL (boo!!! hiss!! :D), and they look quite dissimilar to my matplotlib ones. I would like to mimic their layout as much as possible, which so far is a success. The only problem is that I don't know what font to use. In IDL, I believe it is called Roman (there's an smudged example here: http://www.astro.ufl.edu/~warner/IDL5220/HW4w.jpg). Does anyone know a suitable alternative? Thanks! Jose - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] IDL Font question
On 01/11/2007, Jose Gomez-Dans [EMAIL PROTECTED] wrote: Hi, Some colleagues have sent some plots which they generated using IDL (boo!!! hiss!! :D), and they look quite dissimilar to my matplotlib ones. I would like to mimic their layout as much as possible, which so far is a success. The only problem is that I don't know what font to use. In IDL, I believe it is called Roman (there's an smudged example here: http://www.astro.ufl.edu/~warner/IDL5220/HW4w.jpg). Does anyone know a suitable alternative? Not quite the answer you were looking for, but a completely different approach, if you can ask them to resend the data, is to get them to save out a postscript file, which IDL can do. Then you can edit the components with a tool like inkscape and standardise the fonts across all graphs. Angus. -- AJC McMorland, PhD Student Physiology, University of Auckland - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Rose plot example?
URL:http://www.mail-archive.com/matplotlib-users@lists.sourceforge.net/msg01221.html hth, Alan Isaac - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Basemap help, imshow, transform_scaler
Thanks Eric... Just a question, I've noticed that if I put enough resolution in lev_exp (ie. lev_exp=arange(0,log10(z.max()),0.15) #or more is even nicer! Then the file size gets quite large due to all the colors. Any suggestions? I know its a separate issue... -john - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] IDL Font question
It depends exacly what you need, but this might help: Ghostscript comes with the Hershey fonts. You should be able to choose an appropriate font name in Matplotlib, e.g. Hershey-Gothic-English, and produce a Postscript file using an appropriate backend. You should then be able to convert that to one of any number of formats (bitmaps and PDF) using Ghostscript. Note the use of the word should, I haven't tried this myself! - Andrew Gary Ruben wrote: IDL uses the Hershey vector fonts http://www.ifi.uio.no/it/latex-links/STORE/opt/rsi/idl/help/online_help/Hershey_Vector_Font_Samples.html The problem is that these are not trutype fonts, so the easiest solution is probably to find some free sans-serif font that looks close to Hershey on a free font site. HTH, Gary R. Jose Gomez-Dans wrote: Hi, Some colleagues have sent some plots which they generated using IDL (boo!!! hiss!! :D), and they look quite dissimilar to my matplotlib ones. I would like to mimic their layout as much as possible, which so far is a success. The only problem is that I don't know what font to use. In IDL, I believe it is called Roman (there's an smudged example here: http://www.astro.ufl.edu/~warner/IDL5220/HW4w.jpg). Does anyone know a suitable alternative? Thanks! Jose - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Basemap help, imshow, transform_scaler
The default, TkAgg. I've tried the others as I have some strange behavior with TkAgg, but they don't work at all... In fact, I think I'll start another thread, because the problem I have is now predictable... I would be interested to see if there's a solution... - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] TkAgg freezing, problems with backend
I have strange behavior when using TkAgg on a script which produces plots repeatedly. On the first instance of the plotting, the Figure window is not interactive, and needs to be 'killed' by clicking the x in the top right (this is on XP, by the way). On subsequent calls, it seems fine. What's is strange is when I run it in a debugging environment such as Wing or otherwise, after it's 'killed' the first time I can use close() to close it, but not on the first instance. Could this be related to not using the figure() command? I usually just call with functions like plot(x) or imshow(x) or contour(x) etc... - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Rose plot example?
On Thu, 1 Nov 2007 Alan G Isaac [EMAIL PROTECTED] wrote: URL:http://www.mail-archive.com/matplotlib-users@lists.sourceforge.net/msg01221.html hth, Ah, I sould be able to modify that to do what I need but it's to bad there isn't a more elegant way than remaping the data and faking the labels. Thanks for the quick help. -- Jed Frechette jdfrechette.alturl.com - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
