matplotlib-users Mailing List for matplotlib (Page 7)

Thanks, Paul! A bit of tweaking in my actual app but it now works beautifully!

On 18/01/2011, at 4:08 PM, Paul Ivanov wrote:

> Tim Burgess, on 2011-01-18 13:32,  wrote:
>> I'm generating images that I want to use as overlays in Google
>> Earth. Thus, I would like the masked portion of the numpy
>> arrays I am using to appear as transparent.  However, I seem to
>> consistently get white instead of a transparent point.
>> 
>> To clarify the issue, I wrote this short piece of code. I am
>> setting both the figure background to transaprent and the
>> masked value to transparent but I get white.
>> 
>> I have pulled the current svn code and built matplotlib. I get
>> the same issue. 
>> 
>> from numpy import ma
>> import matplotlib.pyplot as plt
>> from pylab import colorbar, imshow, show, cm
>> 
>> 
>> def main():
>>  a = ma.array([[1,2,3],[4,5,6]],mask=[[0,0,1],[0,0,0]])
>>  fig = plt.figure()
>>  fig.patch.set_alpha(0.0)
>>  cmap = cm.jet
>>  cmap.set_bad(alpha=0.0)
>>  imshow(a, interpolation='nearest', cmap=cmap)
>>  colorbar()
>>  show()
> 
> Hi Tim,
> 
> sorry to hear of your troubles - add these two lines to get your
> desired effect:
> 
>  ax = plt.gca()
>  ax.patch.set_alpha(0.0)
> 
> The figure has a patch associated with it, but so does each axes 
> subplot, which is what you were seeing through the transparent
> portion of your masked array image.
> 
> best,
> -- 
> Paul Ivanov
> 314 address only used for lists,  off-list direct email at:
> http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7 
> ------------------------------------------------------------------------------
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Tim Burgess, on 2011-01-18 13:32,  wrote:
> I'm generating images that I want to use as overlays in Google
> Earth. Thus, I would like the masked portion of the numpy
> arrays I am using to appear as transparent.  However, I seem to
> consistently get white instead of a transparent point.
> 
> To clarify the issue, I wrote this short piece of code. I am
> setting both the figure background to transaprent and the
> masked value to transparent but I get white.
> 
> I have pulled the current svn code and built matplotlib. I get
> the same issue. 
> 
> from numpy import ma
> import matplotlib.pyplot as plt
> from pylab import colorbar, imshow, show, cm
> 
> 
> def main():
>   a = ma.array([[1,2,3],[4,5,6]],mask=[[0,0,1],[0,0,0]])
>   fig = plt.figure()
>   fig.patch.set_alpha(0.0)
>   cmap = cm.jet
>   cmap.set_bad(alpha=0.0)
>   imshow(a, interpolation='nearest', cmap=cmap)
>   colorbar()
>   show()

Hi Tim,

sorry to hear of your troubles - add these two lines to get your
desired effect:

  ax = plt.gca()
  ax.patch.set_alpha(0.0)

The figure has a patch associated with it, but so does each axes 
subplot, which is what you were seeing through the transparent
portion of your masked array image.

best,
-- 
Paul Ivanov
314 address only used for lists,  off-list direct email at:
http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7 

I'm generating images that I want to use as overlays in Google Earth. Thus, I would like the masked portion of the numpy arrays I am using to appear as transparent.
However, I seem to consistently get white instead of a transparent point.

To clarify the issue, I wrote this short piece of code. I am setting both the figure background to transaprent and the masked value to transparent but I get white.

I have pulled the current svn code and built matplotlib. I get the same issue. 

from numpy import ma
import matplotlib.pyplot as plt
from pylab import colorbar, imshow, show, cm


def main():
  a = ma.array([[1,2,3],[4,5,6]],mask=[[0,0,1],[0,0,0]])
  fig = plt.figure()
  fig.patch.set_alpha(0.0)
  cmap = cm.jet
  cmap.set_bad(alpha=0.0)
  imshow(a, interpolation='nearest', cmap=cmap)
  colorbar()
  show()

Any thoughts?

Tim B

Scientific Python Tools not only for Scientists and Engineers
=============================================================

This is the title of my three-hour tutorial at PyCon US:
http://us.pycon.org/2011/schedule/sessions/164/

It is a compressed version of my much longer course about:

* NumPy
* SciPy
* matplotlib/IPython
* extensions with C and Fortran

So if your are new to these tools and go to PyCon, you might consider
taking the tutorial. Also, if you know somebody who would likely
be interested in this tutorial, please spread the word.

Thanks.
Mike

--
Mike Müller
mmu...@py...

On Mon, Jan 17, 2011 at 11:35 AM, Eric Firing <ef...@ha...> wrote:
> On 01/17/2011 05:42 AM, Bala subramanian wrote:
>> Friends,
>> I have created a figure (with two rows and two columns) and i drew four
>> contourf plots (A,B,C,D etc). All the four contourf has the same
>> coloring and bounds. I do not want to draw a colorbar() for each of the
>> plots separately but only one colorbar at the bottom of the four
>> plots.Something like the following scheme.
>>
>> plot1                            plot2
>> plot3                            plot4
>>            colorbar
>>
>> I tried using mpl.colorbar.ColorbarBase as given in
>> http://matplotlib.sourceforge.net/examples/api/colorbar_only.html
>> example to draw the colorbar. However i find the colorbar that is
>> created is overlapping over the plots. Kindly let me know what is the
>> correct way of adjuting its location and size or any other way to create
>> this colorbar.
>
> You should not ordinarily need to use ColorbarBase.  For something like
> what you are describing, see
>
> http://matplotlib.sourceforge.net/examples/pylab_examples/multi_image.html

Well, I learned something today. I had always been turning to
ColorbarBase for cases like this.

Ryan

-- 
Ryan May
Graduate Research Assistant
School of Meteorology
University of Oklahoma

On 01/17/2011 05:42 AM, Bala subramanian wrote:
> Friends,
> I have created a figure (with two rows and two columns) and i drew four
> contourf plots (A,B,C,D etc). All the four contourf has the same
> coloring and bounds. I do not want to draw a colorbar() for each of the
> plots separately but only one colorbar at the bottom of the four
> plots.Something like the following scheme.
>
> plot1                            plot2
> plot3                            plot4
>            colorbar
>
> I tried using mpl.colorbar.ColorbarBase as given in
> http://matplotlib.sourceforge.net/examples/api/colorbar_only.html
> example to draw the colorbar. However i find the colorbar that is
> created is overlapping over the plots. Kindly let me know what is the
> correct way of adjuting its location and size or any other way to create
> this colorbar.

You should not ordinarily need to use ColorbarBase.  For something like 
what you are describing, see

http://matplotlib.sourceforge.net/examples/pylab_examples/multi_image.html

Eric

>
> My code is attached with this mail.
>
> Thanks,
> Bala
>
>
>
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Hi Bala,

Bala subramanian, on 2011-01-17 16:42,  wrote:
> I have created a figure (with two rows and two columns) and i drew four
> contourf plots (A,B,C,D etc). All the four contourf has the same coloring
> and bounds. I do not want to draw a colorbar() for each of the plots
> separately but only one colorbar at the bottom of the four plots.Something
> like the following scheme.
> 
> plot1                            plot2
> plot3                            plot4
>           colorbar
 
Here's one way of getting the type of plot you want.
I just incremented NROW by one, and for the colorbar axes
creation, changed it to be:
  ax5=FIG.add_subplot(NROW,1,NROW)

which is a quick way to get the last row to span both columns.

(I had to comment some things out to get the plot to run without
needing the data).

> I tried using mpl.colorbar.ColorbarBase as given in
> http://matplotlib.sourceforge.net/examples/api/colorbar_only.html example to
> draw the colorbar. However i find the colorbar that is created is
> overlapping over the plots. Kindly let me know what is the correct way of
> adjuting its location and size or any other way to create this colorbar.

There, the axes are created to not overlap by hand tuning the
rectangle parameters passed (left, bottom, width, top). You can
get the same using the trick I used above, or get more
sophisticated combinations using GridSpec [1], or if you want to
get even fancier, with the AxesGrid toolkit [2]

1. http://matplotlib.sourceforge.net/users/gridspec.html
2. http://matplotlib.sourceforge.net/mpl_toolkits/axes_grid/index.html#toolkit-axes

best,
-- 
Paul Ivanov
314 address only used for lists,  off-list direct email at:
http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7 

Friends,
I have created a figure (with two rows and two columns) and i drew four
contourf plots (A,B,C,D etc). All the four contourf has the same coloring
and bounds. I do not want to draw a colorbar() for each of the plots
separately but only one colorbar at the bottom of the four plots.Something
like the following scheme.

plot1                            plot2
plot3                            plot4
          colorbar

I tried using mpl.colorbar.ColorbarBase as given in
http://matplotlib.sourceforge.net/examples/api/colorbar_only.html example to
draw the colorbar. However i find the colorbar that is created is
overlapping over the plots. Kindly let me know what is the correct way of
adjuting its location and size or any other way to create this colorbar.

My code is attached with this mail.

Thanks,
Bala

Thank you very much for the help, I'm sorry I didn't reply to you.  I ended
up doing what you recommend against, which is I took my fontlist.cache and
copied it to the other computers C:\Documents and
Settings\username\.matplotlib folder.  This worked, maybe because all the
computers here have the same font that for some reason didn't get included
in the fontlist for everyone else.  I know it's not perfect and that if I
tried to get the program to work for anyone outside of work it would
probably crash horribly, but it works now so I think I'll just leave it.

Thank you very much Mike, you might not remember but you were the one that
taught me how to get it into New Century Schoolbook in the first place.  
http://old.nabble.com/Changing-the-font-td28111472.html#a28118916 Here it is
, for old times sake.




Michael Droettboom-3 wrote:
> 
> On 01/13/2011 11:38 AM, Alex S wrote:
>> Hi there,
>> I've made a program that makes plots using New Century Schoolbook Lt Std
>> font.  I did this by inserting this into the matplotlibrc file:
>>
>> font.family         :  New Century Schoolbook LT Std # serif #sans-serif
>>
>> There's also a "fontlist.cache" file that I think points to it when it
>> says:
>>
>> .
>> .
>> .
>> (dp283
>> g12
>> g45
>> sg14
>> S'New Century Schoolbook LT Std'
>> p284
>> sg16
>> I400
>> sg17
>> g13
>> sg18
>> .
>> .
>> .
>>
>> This all works fine on my computer.  But I'm trying to make it run on
>> other
>> people's computers (off a network drive) but when I do the plots all go
>> back
>> into Ariel font and all the spacing and stuff gets screwed up.  Running
>> the
>> exact same exe from the same place, my computer continues to make them
>> with
>> the correct font.  I have copied the matplotlibrc file and the
>> fontlist.cache file from my hard drive (C:...Matplotlib) to the mpl-data
>> folder in the dist folder (from py2exe) but that didn't work.
>>
>> Does anyone have any ideas for fixing this stuff?  I think it might just
>> be
>> a matter of including the right files in the Py2Exe setup file but I
>> don't
>> know which ones.  Or maybe changing how I select the font, which was a
>> roundabout way of doing it from the start.
> The fontList.cache file maps from the properties (names, weights, 
> slants) etc. of the fonts available on a particular system to their file 
> path.  You should definitely not ship this file with the exe, but rather 
> allow it to be regenerated from scratch on each system, since the 
> selection and locations of fonts is very likely to be different.
> 
> I think "New Century Schoolbook" is one of the fonts that ships with 
> Windows, so you can probably count on it being there.  If not, you need 
> to ship the font as part of the exe by adding it to mpl-data/fonts/ttf 
> and then following the instructions to include the fonts given here:
> 
> http://www.py2exe.org/index.cgi/MatPlotLib
>>    When I run the plots
>> (successfully on my computer) it says this at one point:
>>
>> c:\Python26\lib\site-packages\matplotlib\backends\backend_pdf.py:982:
>> UserWarning: 'newcenturyschlbkltstd-roman.otf' can not be subsetted into
>> a
>> Type 3 font. The entire font will be embedded in the output.
>>
>> Maybe that has somethign to do with what's going on?
>>    
> I don't think that's related.  All this means is that when it embeds the 
> font into the PDF file, it has to embed the entire thing rather than 
> only the characters that are being used.  (Resulting in a larger PDF 
> file, but otherwise fine.)  To avoid this message, you can set the 
> rcParam "pdf.fonttype" to 42.
> 
> Cheers,
> Mike
>>
>>
>> Thanks a lot,
>> Alex
>>    
> 
> 
> -- 
> Michael Droettboom
> Science Software Branch
> Space Telescope Science Institute
> Baltimore, Maryland, USA
> 
> 
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Hello John

As you update legend.py with draggable() function, how can create my 
draggable legend with old version of matplotlib as if use ax.legend(), it 
always gives me None so I cann't use Adam Fraser's code 
Draggable(ax.legend()) class.

Regards,
Renfan

  With Alstom, preserve the environment. Is printing this email really 
necessary ?
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For convenience of use, I implemented three simple scales.  I have not yet
tested it rigorously, but the usage is similar to protovis scales.

https://github.com/laserson/pytools/blob/master/scale.py

Uri

...................................................................................
Uri Laserson
Graduate Student, Biomedical Engineering
Harvard-MIT Division of Health Sciences and Technology
M +1 917 742 8019
las...@mi...


On Sun, Jan 16, 2011 at 21:23, Paul Ivanov <piv...@gm...> wrote:

> Uri Laserson, on 2011-01-16 17:41,  wrote:
> > Hi all,
> >
> > Does there already exist some python implementation (in MPL or other) of
> an
> > easy-to-use 1D scale transformation?  This is something analogous to
> > processing's map function or protovis's scale functionality.  It would
> work
> > something like:
> >
> > s = linear().domain(5,100).range(13000,15000)
> >
> > or
> >
> > s = root(p=5).domain(0.1,0.6).range(0,1)
> >
> > There could be multiple versions, including linear, log, symlog, root
> > (power), discrete, etc.
>
> Hi Uri,
>
> I think that the closest we have matplotlib is
> matplotlib.colors.Normalize[1] and matplotlib.colors.LogNorm[2], but
> both of these have a fixed range of the 0-1 (which is the reason
> they are in colors). Both of these do end up with an inverse
> method that you could leverage to get an arbitrary range, though.
>
> 1.
> http://matplotlib.sourceforge.net/api/colors_api.html#matplotlib.colors.Normalize
> 2.
> http://matplotlib.sourceforge.net/api/colors_api.html#matplotlib.colors.LogNorm
>
> --
> Paul Ivanov
> 314 address only used for lists,  off-list direct email at:
> http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7
>
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>

Hi 

from what I can see if I call fig.autofmt_xdate() with a the twinx command
the xaxis labels do not roatate as you might expect. There seem to be a few
threads on this e.g.

http://old.nabble.com/autofmt_xdate()-broken-for-twinx()-p30248577.html

However does anyone know a workaround until there is a later version
available?

Much appreciated,

Martin
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Uri Laserson, on 2011-01-16 17:41,  wrote:
> Hi all,
> 
> Does there already exist some python implementation (in MPL or other) of an
> easy-to-use 1D scale transformation?  This is something analogous to
> processing's map function or protovis's scale functionality.  It would work
> something like:
> 
> s = linear().domain(5,100).range(13000,15000)
> 
> or
> 
> s = root(p=5).domain(0.1,0.6).range(0,1)
> 
> There could be multiple versions, including linear, log, symlog, root
> (power), discrete, etc.

Hi Uri,

I think that the closest we have matplotlib is
matplotlib.colors.Normalize[1] and matplotlib.colors.LogNorm[2], but
both of these have a fixed range of the 0-1 (which is the reason
they are in colors). Both of these do end up with an inverse
method that you could leverage to get an arbitrary range, though.

1. http://matplotlib.sourceforge.net/api/colors_api.html#matplotlib.colors.Normalize
2. http://matplotlib.sourceforge.net/api/colors_api.html#matplotlib.colors.LogNorm

-- 
Paul Ivanov
314 address only used for lists,  off-list direct email at:
http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7 

Hi all,

Does there already exist some python implementation (in MPL or other) of an
easy-to-use 1D scale transformation?  This is something analogous to
processing's map function or protovis's scale functionality.  It would work
something like:

s = linear().domain(5,100).range(13000,15000)

or

s = root(p=5).domain(0.1,0.6).range(0,1)

There could be multiple versions, including linear, log, symlog, root
(power), discrete, etc.

Thanks!
Uri

...................................................................................
Uri Laserson
Graduate Student, Biomedical Engineering
Harvard-MIT Division of Health Sciences and Technology
M +1 917 742 8019
las...@mi...

Ben,
Sorry to take so long getting back.

I found a solution. Perhaps not the best one but I discovered that using
close() after a show() or save() worked for me. Stumbled across it a day or
two after posting.

Drew



Benjamin Root-2 wrote:
> 
> On Mon, Jan 3, 2011 at 11:36 AM, Drew Stokes <dre...@gm...>
> wrote:
> 
>>
>> Hi,
>> I'm very new to Matplotlib and python but I ma getting excellent results
>> in
>> what I am trying to achieve. That said I have come up against an issue I
>> can't seem to find a resolution to and was wondering if someone here may
>> be
>> able to help out.
>>
>> I have a script that generates a number of plots. The first plot comes
>> out
>> fine but there seems to be a little hang over in regards to format or
>> data
>> into the following plots. I have alternated the script by putting each
>> plot
>> first and the same applies the first plot is fine the rest are ok but
>> there
>> are odd points plotted. I wonder if there is a method of flushing or
>> clearing formats etc that I could use. Sorry if I'm getting terminology
>> wrong this is all still rather new to me.
>>
>> Drew
>>
> 
> Drew,
> 
> Do you have a very simple script that reproduces the issue you are
> experiencing?  From the script, we might be able to spot what is wrong.
> 
> Ben Root
> 
> ------------------------------------------------------------------------------
> Learn how Oracle Real Application Clusters (RAC) One Node allows customers
> to consolidate database storage, standardize their database environment,
> and, 
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> 

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Ben,
Sorry to take so long getting back.

I found a solution. Perhaps not the best one but I discovered that using
close() after a show() or save() worked for me. Stumbled across it a day or
two after posting.

Drew



Benjamin Root-2 wrote:
> 
> On Mon, Jan 3, 2011 at 11:36 AM, Drew Stokes <dre...@gm...>
> wrote:
> 
>>
>> Hi,
>> I'm very new to Matplotlib and python but I ma getting excellent results
>> in
>> what I am trying to achieve. That said I have come up against an issue I
>> can't seem to find a resolution to and was wondering if someone here may
>> be
>> able to help out.
>>
>> I have a script that generates a number of plots. The first plot comes
>> out
>> fine but there seems to be a little hang over in regards to format or
>> data
>> into the following plots. I have alternated the script by putting each
>> plot
>> first and the same applies the first plot is fine the rest are ok but
>> there
>> are odd points plotted. I wonder if there is a method of flushing or
>> clearing formats etc that I could use. Sorry if I'm getting terminology
>> wrong this is all still rather new to me.
>>
>> Drew
>>
> 
> Drew,
> 
> Do you have a very simple script that reproduces the issue you are
> experiencing?  From the script, we might be able to spot what is wrong.
> 
> Ben Root
> 
> ------------------------------------------------------------------------------
> Learn how Oracle Real Application Clusters (RAC) One Node allows customers
> to consolidate database storage, standardize their database environment,
> and, 
> should the need arise, upgrade to a full multi-node Oracle RAC database 
> without downtime or disruption
> http://p.sf.net/sfu/oracle-sfdevnl
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
> 
> 

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Hello everyone,

I frequently use subscripts and superscripts in text on my plots, but 
I've noticed that the line and character spacing (kerning ?) is not 
always as I would expect. For most things, this is not a problem. 
However, I would occasionally like various text objects to line up with 
one another, and at these times, this spacing difference can become a issue.

I guess I have a couple questions at this point... First, is this 
expected? Second, is there any (simple) way I can control the line and 
character spacing? I see there is a 'linespacing' keyword argument; 
however, this seems to be a multiplier relative to the total text height 
for each line not an absolute, fixed height of every line. For character 
spacing, is there a special symbol I could insert to add or removing 
spacing between characters?

I'm using Matploblib 1.0.0 that ships with Python(x,y) for Windows. 
Below is a test script that highlights these differences (at least on my 
system).

Any help or suggestions are most appreciated. (I don't know much TeX, so 
I appologize if these differences are obvious for those in the know.)

Ryan

import matplotlib.pyplot as plt
plt.rc('font', size=25.0)
plt.text(0.25, 0.25,
         'X1Y2\nX1Y2\nX$_1$Y$_2$\nX$_{1}$Y$_{2}$\n$X_1Y_2$\n$X_{1}Y_{2}$')
plt.text(0.75, 0.25,
         'X1Y2\nX1Y2\nX$^1$Y$^2$\nX$^{1}$Y$^{2}$\n$X^1Y^2$\n$X^{1}Y^{2}$')
plt.text(0.5, 0.25, 'X$_{1}$Y$_{2}$\nX$^{1}$Y$^{2}$\n$X_1Y_2$\n$X^1Y^2$')
plt.show()

subplot(numRows, numCols, plotNum)

On my local disk, the file:

file:///usr/share/doc/python-matplotlib-doc/html/api/pyplot_api.html#matplotlib.pyplot.subplot

contains:

  subplot(numRows, numCols, plotNum)

  where plotNum = 1 is the first plot number and increasing plotNums
fill rows first. max(plotNum) == numRows * numCols

and then, a little later:

  New subplots that overlap old will delete the old axes.

However, that doc does not explain what a row or column is or what
overlap means.

Is there some way the figure is partitioned into rows and columns and the
subplots appear in these rows and columns.  If so, then how is this
partition
done?  Does subplot(1,2,1) appear to the left and at same level as
subplot(1,2,2)?
What if there's subplot(1,2,1) and subplot(2,1,1).  Do they overlap and
if so, why?
IOW, what's the definition of overlap?

TIA.

  -regards,
  Larry

**update** matplotlib 1.0.0 setup worked on one but did not work on a second Mac OS X 10.6.6. The second one again failed with a missing dependency. It seems to depend on what previous packages may have been installed.

The following seems to be a complete fix:

1. On Mac OS X 10.6.x (in my case...6)
2. Install Apple Xcode (requires registration as an Apple developer)
3. Install MacPorts http://www.macports.org/
4. Check that all library dependencies for matplotlib in Python 2.6 have been satisfied by first running (with Administrator privileges):
	sudo port install py26-matplotlib
(this will use MacPorts script to install matplotlib 1.0.0)

5. (optional) you can reinstall now matplotlib from http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.0/matplotlib-1.0.0.tar.gz/download

**now** it works :-)

PS note to matplotlib developers. The above may suggest that matplotlib may have a dependency that is not present on a virgin OSX Xcode machine but which is incidentally installed by some other package usually present on a developer's machine and so whose absence is not noticed when preparing the installation script.

On 16/01/2011, at 10:22 AM, Leslie Burnett wrote:

> Thank you. You are correct. The matplotlib version 1.0.0 works for me too!
> 
> I will post this reply so that others can be aware that the problem seems to be only with matplotlib version 1.0.1. 
> The previous version matplotlib 1.0.0 works ok with Mac OS X 10.6.6 Snow Leopard and Apple Python 2.6.1
> 
> On 15/01/2011, at 11:04 PM, Kurt Mueller wrote:
> 
>> 
>> Am 15.01.2011 um 12:07 schrieb Leslie Burnett:
>>> My apologies if this question is a bit simple, but I am new to Python, but I think I've done all the RTFM things and still hit a brick wall. I can see from Google that I am not the first to strike this problem, but no solutions seem to be posted.
>>> I am trying to install matplotlib on a Mac OSX 10.6 (Snow Leopard)(OS fully up to date).
>>> When I try to install, I get the error message: 
>>>> lipo: can't open input file: /var/tmp//cctV2zuc.out (No such file or directory)
>>>> error: Setup script exited with error: command 'gcc-4.2' failed with exit status 1
>> 
>> 
>> On a fully updated Mac OSX 10.6.6 the installation of
>> http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.0/matplotlib-1.0.0.tar.gz/download
>> did work for me.
>> 
>> -- 
>> kur...@gm...
>> 
> 

Thank you. You are correct. The matplotlib version 1.0.0 works for me too!

I will post this reply so that others can be aware that the problem seems to be only with matplotlib version 1.0.1. 
The previous version matplotlib 1.0.0 works ok with Mac OS X 10.6.6 Snow Leopard and Apple Python 2.6.1

On 15/01/2011, at 11:04 PM, Kurt Mueller wrote:

> 
> Am 15.01.2011 um 12:07 schrieb Leslie Burnett:
>> My apologies if this question is a bit simple, but I am new to Python, but I think I've done all the RTFM things and still hit a brick wall. I can see from Google that I am not the first to strike this problem, but no solutions seem to be posted.
>> I am trying to install matplotlib on a Mac OSX 10.6 (Snow Leopard)(OS fully up to date).
>> When I try to install, I get the error message: 
>>> lipo: can't open input file: /var/tmp//cctV2zuc.out (No such file or directory)
>>> error: Setup script exited with error: command 'gcc-4.2' failed with exit status 1
> 
> 
> On a fully updated Mac OSX 10.6.6 the installation of
> http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.0/matplotlib-1.0.0.tar.gz/download
> did work for me.
> 
> -- 
> kur...@gm...
> 

On 01/15/2011 09:35 AM, Daniel Mader wrote:
> Hi,
>
> for my thesis I have a laaaaarge number of plots generated
> by--again--a laaaaaaarge number of Python scripts.
>
> Now I need a moderate font size for all of them for the thesis while
> for a presentation and poster it needs to be much bigger.
>
> In order to keep track of all the plots and files I use a script which
> just calls them and copies the relevant files to a folder:
>
>
> import pylab, shutil, subprocess
>
> cwd = os.getcwd()
> dest = './pyplots/'
>
> p20 = '../20_Glasses+Liquids/'
> p21 = '../21_LensDesign/'
> p22 = '../22_comsol/'
> p23 = '../23_OSLO/'
> p23_glc = '../23_OSLO/OSLO_glc/'
>
> def main():
>    runP20()
>
> def runP20():
>    os.chdir(p20)
>    subprocess.call([sys.executable, 'Generic_OpticalLiquids.py'])
>    os.chdir(cwd)
>    shutil.copy(p20+'Generic_OpticalLiquids_n-V.pdf', dest)
>
> This might be a very clumsy approach but I find it very helpful. The
> problem is that changing any rcParam has no effect on the created
> files, opposed to using execfile instead of subprocess.call().
>
> What can I do to change plot settings globally for that task?

If I understand correctly what you are trying to do, you need to set 
your rcParams in a matplotlibrc file that will be the one found for a 
given run through all your scripts; or modify your scripts so that they 
take rcParams on the command line, and modify your master run-all script 
so that it feeds those rcParams to each script as it is called.

For the first approach, you can either have your master script copy a 
given matplotlibrc file into each subdirectory before doing your chdir() 
to that subdirectory, or you can simply set that matplotlibrc file at 
the beginning of the run, using a single location on the search path for 
matplotlibrc.  That search path includes a path that you may set using 
the environment variable MATPLOTLIBRC, and, relative to your home 
directory, ".matplotlib/".  For either type of path, note that it is a 
directory that is specified; the file is always named "matplotlibrc".

Eric

>
> Thanks in advance,
> Daniel
>
> ------------------------------------------------------------------------------
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On X11 systems, windows generally provide information about themselves
to the system.  These include things like the window title, window
class, window role, and window type.  These allow window managers to
properly handle the windows, and in some window managers (like KDE's
kwin), lets you set rules for windows of certain types.

As best as I can tell, by default matplotlib does not provide most of
this information.  It provides the window title and the window type,
but it doesn't seem to provide the window class or the window role.
These two properties, however, are exactly the properties someone
would want to use when trying to set up rules for particular windows.
This makes it impossible to set window-specific rules for the plots.

Is there something in the matplotlib configuration that would let
someone set these properties, and if not is there any way matplotlib
could set them itself?

I'm sorry if this is a common question.

-Todd

Hi,

for my thesis I have a laaaaarge number of plots generated
by--again--a laaaaaaarge number of Python scripts.

Now I need a moderate font size for all of them for the thesis while
for a presentation and poster it needs to be much bigger.

In order to keep track of all the plots and files I use a script which
just calls them and copies the relevant files to a folder:


import pylab, shutil, subprocess

cwd = os.getcwd()
dest = './pyplots/'

p20 = '../20_Glasses+Liquids/'
p21 = '../21_LensDesign/'
p22 = '../22_comsol/'
p23 = '../23_OSLO/'
p23_glc = '../23_OSLO/OSLO_glc/'

def main():
  runP20()

def runP20():
  os.chdir(p20)
  subprocess.call([sys.executable, 'Generic_OpticalLiquids.py'])
  os.chdir(cwd)
  shutil.copy(p20+'Generic_OpticalLiquids_n-V.pdf', dest)

This might be a very clumsy approach but I find it very helpful. The
problem is that changing any rcParam has no effect on the created
files, opposed to using execfile instead of subprocess.call().

What can I do to change plot settings globally for that task?

Thanks in advance,
Daniel

Am 15.01.2011 um 12:07 schrieb Leslie Burnett:
> My apologies if this question is a bit simple, but I am new to Python, but I think I've done all the RTFM things and still hit a brick wall. I can see from Google that I am not the first to strike this problem, but no solutions seem to be posted.
> I am trying to install matplotlib on a Mac OSX 10.6 (Snow Leopard)(OS fully up to date).
> When I try to install, I get the error message: 
>> lipo: can't open input file: /var/tmp//cctV2zuc.out (No such file or directory)
>> error: Setup script exited with error: command 'gcc-4.2' failed with exit status 1


On a fully updated Mac OSX 10.6.6 the installation of
http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.0/matplotlib-1.0.0.tar.gz/download
did work for me.

-- 
kur...@gm...

Dear Matplotlib users
My apologies if this question is a bit simple, but I am new to Python, but I think I've done all the RTFM things and still hit a brick wall. I can see from Google that I am not the first to strike this problem, but no solutions seem to be posted.

I am trying to install matplotlib on a Mac OSX 10.6 (Snow Leopard)(OS fully up to date).
When I try to install, I get the error message: 
> lipo: can't open input file: /var/tmp//cctV2zuc.out (No such file or directory)
> error: Setup script exited with error: command 'gcc-4.2' failed with exit status 1

(full session messages are pasted at the end of this post)

I reach this same point via a variety of varied different installation strategies, which I have documented and outlined below.
Any assistance or guidance would be gratefully received.

With many thanks

Leslie Burnett
Sydney University

===

System:
Mac OSX 10.6.6
Xcode installed and up to date
Python 2.6.1 (Apple)
> Python 2.6.1 (r261:67515, Jun 24 2010, 21:47:49) 
> [GCC 4.2.1 (Apple Inc. build 5646)] on darwin

NumPy installed OK (so I think I have mastered the process of "python setup.py build" and "... install")

===

Pathways leading to the error message:

I obtained Matplotlib from the matplotlib home page download link to sourceforge

a) mpkg/dmg installation 1.0.1-r0 fails with message "can't be installed on this disk. matplotlib requires System Python 2.6 to install"

b) matplotlib-1.0.1.tar, then cd to tar directory, then "sudo python setup.py build" fails with the missing *.out error message above.

c) easy-install using "sudo sh setuptools-0.6c11-py2.6.egg" fails with same missing *.out error message

===

I have tried this on two different Macs, with same outcome and same error messages.
I have also searched the matplotlib archives ditto Google for this problem. I can see others have encountered it, but noone seems to have posted a solution.

===
Here is the full terminal transcript of the attempted build. Firstly the directory listing, then the build messages:

> matplotlib-1.0.1 user$ ls
> CHANGELOG		MANIFEST.in		__init__.py		lib			setup.py		ttconv
> CXX			Makefile		agg24			license			setupegg.py
> INSTALL			PKG-INFO		build			make.osx		setupext.py
> INTERACTIVE		README.txt		doc			matplotlibrc.template	setupext.pyc
> KNOWN_BUGS		TODO			examples		setup.cfg.template	src

> matplotlib-1.0.1 user$ sudo python setup.py build
> Password:*******
> basedirlist is: []
> ============================================================================
> BUILDING MATPLOTLIB
>             matplotlib: 1.0.1
>                 python: 2.6.1 (r261:67515, Jun 24 2010, 21:47:49)  [GCC
>                         4.2.1 (Apple Inc. build 5646)]
>               platform: darwin
> 
> REQUIRED DEPENDENCIES
>                  numpy: 1.2.1
>              freetype2: found, but unknown version (no pkg-config)
>                         * WARNING: Could not find 'freetype2' headers in any
>                         * of '.', './freetype2'.
> 
> OPTIONAL BACKEND DEPENDENCIES
>                 libpng: found, but unknown version (no pkg-config)
>                         * Could not find 'libpng' headers in any of '.'
>                Tkinter: Tkinter: 67083, Tk: 8.5, Tcl: 8.5
>               wxPython: no
>                         * wxPython not found
>                   Gtk+: no
>                         * Building for Gtk+ requires pygtk; you must be able
>                         * to "import gtk" in your build/install environment
>        Mac OS X native: yes
>                     Qt: no
>                    Qt4: no
>                  Cairo: no
> 
> OPTIONAL DATE/TIMEZONE DEPENDENCIES
>               datetime: present, version unknown
>               dateutil: present, version unknown
>                   pytz: matplotlib will provide
> adding pytz
> 
> OPTIONAL USETEX DEPENDENCIES
>                 dvipng: no
>            ghostscript: /bin/sh: gs: command not found
>                  latex: no
> 
> [Edit setup.cfg to suppress the above messages]
> ============================================================================
> pymods ['pylab']
> packages ['matplotlib', 'matplotlib.backends', 'matplotlib.backends.qt4_editor', 'matplotlib.projections', 'matplotlib.testing', 'matplotlib.testing.jpl_units', 'matplotlib.tests', 'mpl_toolkits', 'mpl_toolkits.mplot3d', 'mpl_toolkits.axes_grid', 'mpl_toolkits.axes_grid1', 'mpl_toolkits.axisartist', 'matplotlib.sphinxext', 'matplotlib.numerix', 'matplotlib.numerix.mlab', 'matplotlib.numerix.ma', 'matplotlib.numerix.linear_algebra', 'matplotlib.numerix.random_array', 'matplotlib.numerix.fft', 'matplotlib.tri', 'matplotlib.delaunay', 'pytz']
> running build
> running build_py
> copying lib/matplotlib/mpl-data/matplotlibrc -> build/lib.macosx-10.6-universal-2.6/matplotlib/mpl-data
> copying lib/matplotlib/mpl-data/matplotlib.conf -> build/lib.macosx-10.6-universal-2.6/matplotlib/mpl-data
> running build_ext
> building 'matplotlib.ft2font' extension
> gcc-4.2 -fno-strict-aliasing -fno-common -dynamic -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch i386 -arch ppc -arch x86_64 -pipe -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -DPYCXX_ISO_CPP_LIB=1 -I/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/numpy/core/include -I. -I/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/numpy/core/include/freetype2 -I./freetype2 -I/System/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -c src/ft2font.cpp -o build/temp.macosx-10.6-universal-2.6/src/ft2font.o
> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for C/ObjC but not for C++
> In file included from src/ft2font.cpp:1:
> src/ft2font.h:14:22: error: ft2build.h: No such file or directory
> src/ft2font.h:15:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:16:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:17:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:18:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:19:10: error: #include expects "FILENAME" or <FILENAME>
> In file included from src/ft2font.cpp:1:
> src/ft2font.h:33: error: ‘FT_Bitmap’ has not been declared
> src/ft2font.h:33: error: ‘FT_Int’ has not been declared
> src/ft2font.h:33: error: ‘FT_Int’ has not been declared
> src/ft2font.h:89: error: expected ‘,’ or ‘...’ before ‘&’ token
> src/ft2font.h:89: error: ISO C++ forbids declaration of ‘FT_Face’ with no type
> src/ft2font.h:95: error: expected ‘,’ or ‘...’ before ‘&’ token
> src/ft2font.h:95: error: ISO C++ forbids declaration of ‘FT_Face’ with no type
> src/ft2font.h:137: error: ‘FT_Face’ does not name a type
> src/ft2font.h:138: error: ‘FT_Matrix’ does not name a type
> src/ft2font.h:139: error: ‘FT_Vector’ does not name a type
> src/ft2font.h:140: error: ‘FT_Error’ does not name a type
> src/ft2font.h:141: error: ‘FT_Glyph’ was not declared in this scope
> src/ft2font.h:141: error: template argument 1 is invalid
> src/ft2font.h:141: error: template argument 2 is invalid
> src/ft2font.h:142: error: ‘FT_Vector’ was not declared in this scope
> src/ft2font.h:142: error: template argument 1 is invalid
> src/ft2font.h:142: error: template argument 2 is invalid
> src/ft2font.h:148: error: ‘FT_BBox’ does not name a type
> src/ft2font.cpp:45: error: ‘FT_Library’ does not name a type
> src/ft2font.cpp:108: error: variable or field ‘draw_bitmap’ declared void
> src/ft2font.cpp:108: error: ‘FT_Bitmap’ was not declared in this scope
> src/ft2font.cpp:108: error: ‘bitmap’ was not declared in this scope
> src/ft2font.cpp:109: error: ‘FT_Int’ was not declared in this scope
> src/ft2font.cpp:110: error: ‘FT_Int’ was not declared in this scope
> /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/numpy/core/include/numpy/__multiarray_api.h:958: warning: ‘int _import_array()’ defined but not used
> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for C/ObjC but not for C++
> In file included from src/ft2font.cpp:1:
> src/ft2font.h:14:22: error: ft2build.h: No such file or directory
> src/ft2font.h:15:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:16:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:17:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:18:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:19:10: error: #include expects "FILENAME" or <FILENAME>
> In file included from src/ft2font.cpp:1:
> src/ft2font.h:33: error: ‘FT_Bitmap’ has not been declared
> src/ft2font.h:33: error: ‘FT_Int’ has not been declared
> src/ft2font.h:33: error: ‘FT_Int’ has not been declared
> src/ft2font.h:89: error: expected ‘,’ or ‘...’ before ‘&’ token
> src/ft2font.h:89: error: ISO C++ forbids declaration of ‘FT_Face’ with no type
> src/ft2font.h:95: error: expected ‘,’ or ‘...’ before ‘&’ token
> src/ft2font.h:95: error: ISO C++ forbids declaration of ‘FT_Face’ with no type
> src/ft2font.h:137: error: ‘FT_Face’ does not name a type
> src/ft2font.h:138: error: ‘FT_Matrix’ does not name a type
> src/ft2font.h:139: error: ‘FT_Vector’ does not name a type
> src/ft2font.h:140: error: ‘FT_Error’ does not name a type
> src/ft2font.h:141: error: ‘FT_Glyph’ was not declared in this scope
> src/ft2font.h:141: error: template argument 1 is invalid
> src/ft2font.h:141: error: template argument 2 is invalid
> src/ft2font.h:142: error: ‘FT_Vector’ was not declared in this scope
> src/ft2font.h:142: error: template argument 1 is invalid
> src/ft2font.h:142: error: template argument 2 is invalid
> src/ft2font.h:148: error: ‘FT_BBox’ does not name a type
> src/ft2font.cpp:45: error: ‘FT_Library’ does not name a type
> src/ft2font.cpp:108: error: variable or field ‘draw_bitmap’ declared void
> src/ft2font.cpp:108: error: ‘FT_Bitmap’ was not declared in this scope
> src/ft2font.cpp:108: error: ‘bitmap’ was not declared in this scope
> src/ft2font.cpp:109: error: ‘FT_Int’ was not declared in this scope
> src/ft2font.cpp:110: error: ‘FT_Int’ was not declared in this scope
> /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/numpy/core/include/numpy/__multiarray_api.h:958: warning: ‘int _import_array()’ defined but not used
> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for C/ObjC but not for C++
> In file included from src/ft2font.cpp:1:
> src/ft2font.h:14:22: error: ft2build.h: No such file or directory
> src/ft2font.h:15:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:16:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:17:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:18:10: error: #include expects "FILENAME" or <FILENAME>
> src/ft2font.h:19:10: error: #include expects "FILENAME" or <FILENAME>
> In file included from src/ft2font.cpp:1:
> src/ft2font.h:33: error: ‘FT_Bitmap’ has not been declared
> src/ft2font.h:33: error: ‘FT_Int’ has not been declared
> src/ft2font.h:33: error: ‘FT_Int’ has not been declared
> src/ft2font.h:89: error: expected ‘,’ or ‘...’ before ‘&’ token
> src/ft2font.h:89: error: ISO C++ forbids declaration of ‘FT_Face’ with no type
> src/ft2font.h:95: error: expected ‘,’ or ‘...’ before ‘&’ token
> src/ft2font.h:95: error: ISO C++ forbids declaration of ‘FT_Face’ with no type
> src/ft2font.h:137: error: ‘FT_Face’ does not name a type
> src/ft2font.h:138: error: ‘FT_Matrix’ does not name a type
> src/ft2font.h:139: error: ‘FT_Vector’ does not name a type
> src/ft2font.h:140: error: ‘FT_Error’ does not name a type
> src/ft2font.h:141: error: ‘FT_Glyph’ was not declared in this scope
> src/ft2font.h:141: error: template argument 1 is invalid
> src/ft2font.h:141: error: template argument 2 is invalid
> src/ft2font.h:142: error: ‘FT_Vector’ was not declared in this scope
> src/ft2font.h:142: error: template argument 1 is invalid
> src/ft2font.h:142: error: template argument 2 is invalid
> src/ft2font.h:148: error: ‘FT_BBox’ does not name a type
> src/ft2font.cpp:45: error: ‘FT_Library’ does not name a type
> src/ft2font.cpp:108: error: variable or field ‘draw_bitmap’ declared void
> src/ft2font.cpp:108: error: ‘FT_Bitmap’ was not declared in this scope
> src/ft2font.cpp:108: error: ‘bitmap’ was not declared in this scope
> src/ft2font.cpp:109: error: ‘FT_Int’ was not declared in this scope
> src/ft2font.cpp:110: error: ‘FT_Int’ was not declared in this scope
> /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/numpy/core/include/numpy/__multiarray_api.h:958: warning: ‘int _import_array()’ defined but not used
> lipo: can't open input file: /var/tmp//ccX1tCpD.out (No such file or directory)
> error: command 'gcc-4.2' failed with exit status 1
>