matplotlib-users Mailing List for matplotlib

I ran the attached python program under Ubuntu and Windows2000 with
different results. I expect the results to be similar.

Running under Ubuntu works great, and as expected.

Running under Windows2000 does not work well. Specifically, it works for
awhile, but then stops working and opens a small window with title:
wxPython: stdout/stderr, with many messages ultimately ending with the
root issue - Cannot_Open_Resource, Could not open facefile, in
_get_agg_font at line 301 of backend_agg.py.

On Windows2000 it runs for about 1 minute, then stops working and starts
delivering this series of error messages.

On Ubuntu, I can run it all day with no problems.

It might be easiest if you simply run the program under Linux and under
Windows and see if you note the same difference.

To run the program, maximize to expose the buttons and slider. Press
Start - you should see the plot flip back-and-forth between sin and cos
every 1 second. Move the slider to adjust the speed of flip.

I know that this program could be laid out better, etc - and that is not
my issue; this program is just a quick check of the capabilities of
matplotlib plot updates. I am interested in supporting real-time
plotting using matplotlib within a wxPython GUI. So, maybe you could
suggest an alternative way to write this program that works well on
Windows.

[More fundamentally, this program should work equivalently on Windows
and Linux. This may be a wxWidgets issue however, i.e. perhaps it
involves how graphical resources are obtained/available/reclaimed from
the underlying graphics subsystem of the OS. Perhaps the reclaim is much
more efficient under Linux and I need to do some explicit resource
reclaim under Windows (?).]

BTW, if you are interested, I can clean this snippet up a little and
maybe you would want to include it in your examples, as it demonstrates
another aspect of matplotlib use that may be of general interest (?). Of
course, it should first also work under Windows :).

Thanks for any replies.

Dear matplotlib colleagues,

I am very new to matplotlib but I have been able to generate the plots I ne=
ed; however, I am having trouble annotating a plot with an arrow. Could you=
 help me with the syntax? Here is the code I am using:

ax.annotate('sol 9',xy=3D(xMinorLocs[9],0.5),xytext=3D(xMinorLocs[9],0.8),a=
rrowprops=3Ddict(width=3D1, frac=3D0.1, headwidth=3D5, facecolor=3D'black')=
) =20

when I do that, I get a 'ZeroDivisionError: float division'

As a test, I tried the command without the arrowprops:
ax.annotate('sol 9',xy=3D(xMinorLocs[9],0.5),xytext=3D(xMinorLocs[9],0.8))

and I didn't get any errors and the label was plotted (no arrow) at the rig=
ht location. How can I get the arrow to show up?

Any help you can provide would be really appreciated.

Thanks and happy Holidays!

Fernando

Evan Mason wrote:
> Thank you Jeff.  Setting LD_LIBRARY_PATH works fine as a quick test, 
> though that leads me to the "ImportError: No module named 
> pkg_resources" problem that the other recent posters had.  I'll either 
> try setuptools or wait for 0.9.9 to come out - will it be long?
>
> -Evan

Evan:  Sometime next week probably,  If you have svn installed, you can 
get the latest version that way.

-Jeff

-- 
Jeffrey S. Whitaker         Phone  : (303)497-6313
Meteorologist               FAX    : (303)497-6449
NOAA/OAR/PSD  R/PSD1        Email  : Jef...@no...
325 Broadway                Office : Skaggs Research Cntr 1D-124
Boulder, CO, USA 80303-3328 Web    : http://tinyurl.com/5telg

Thank you Jeff.  Setting LD_LIBRARY_PATH works fine as a quick test, though
that leads me to the "ImportError: No module named pkg_resources" problem
that the other recent posters had.  I'll either try setuptools or wait for
0.9.9 to come out - will it be long?

-Evan

Evan Mason wrote:
> Hi all,
>
> Just updated basemap from 0.9.4 to 0.9.8 on Mandriva Linux 2008.  I 
> also installed basemap-data-fullres-0.9.7.  I've noticed there's a 
> couple of recent posts about problems (on Macs) with 0.9.8, the 
> solution being to install setuptools until 0.9.9 comes along; the 
> problem I have is similar to the posts but not the same, so I'd like 
> to check here before proceeding with setuptools.
>
> I installed the included geos-2.2.3, then basemap-0.9.8, then 
> basemap-data-fullres-0.9.7 .  However when I now import basemap I get:
>
> In [1]: from matplotlib.toolkits.basemap import Basemap
> ---------------------------------------------------------------------------
> <type 'exceptions.ImportError'>           Traceback (most recent call 
> last)
>
> /home/emason/python/tools/<ipython console> in <module>()
>
> /usr/lib/python2.5/site-packages/matplotlib/toolkits/basemap/__init__.py 
> in <module>()
> ----> 1 from basemap import __doc__, __version__
>       2 from basemap import *
>
> /usr/lib/python2.5/site-packages/matplotlib/toolkits/basemap/basemap.py 
> in <module>()
>      29 from matplotlib.cbook import is_scalar, dedent
>      30 from shapelib import ShapeFile
> ---> 31 import _geos, pupynere
>      32
>      33 # basemap data files now installed in 
> lib/matplotlib/toolkits/basemap/data
>
> <type 'exceptions.ImportError'>: libgeos_c.so.1: cannot open shared 
> object file: No such file or directory
>
> Yet the file, in fact a link, libgeos_c.so.1, does exist at the 
> location (/usr/local/lib) where it is supposed to be:
>
> [root@msasa lib]# ll
> total 44230
> -rw-r--r-- 1 root root 28107924 2007-12-28 16:31 libgeos.a
> -rw-r--r-- 1 root root   581806 2007-12-28 16:31 libgeos_c.a
> -rwxr-xr-x 1 root root      830 2007-12-28 16:31 libgeos_c.la*
> lrwxrwxrwx 1 root root       18 2007-12-28 16:31 libgeos_c.so -> 
> libgeos_c.so.1.1.1*
> lrwxrwxrwx 1 root root       18 2007-12-28 16:31 libgeos_c.so.1 -> 
> libgeos_c.so.1.1.1*
> -rwxr-xr-x 1 root root   452162 2007-12-28 16:31 libgeos_c.so.1.1.1*
> -rwxr-xr-x 1 root root      790 2007-12-28 16:31 libgeos.la*
> lrwxrwxrwx 1 root root       16 2007-12-28 16:31 libgeos.so -> 
> libgeos.so.2.2.3*
> lrwxrwxrwx 1 root root       16 2007-12-28 16:31 libgeos.so.2 -> 
> libgeos.so.2.2.3*
> -rwxr-xr-x 1 root root 13443604 2007-12-28 16:31 libgeos.so.2.2.3*
>
> I'd appreciate any help with this.
>
> Thanks, Evan

Evan:  I think this is a LD_LIBRARY_PATH problem.  There are two 
possible workarounds:

1) set the LD_LIBRARY_PATH environment variable to include 
/usr/local/lib, i.e.

export LD_LIBRARY_PATH="/usr/local/lib:$LD_LIBRARY_PATH"

2) edit setup.py and make the following change

currents_nbp:(basemap_svn)$ svn diff
Index: setup.py
===================================================================
--- setup.py    (revision 4791)
+++ setup.py    (working copy)
@@ -90,7 +90,11 @@

extensions.append(Extension("matplotlib.toolkits.basemap._geod",deps+['src/_geod.c'],include_dirs 
= ['src'],))
 # for some reason, pickling won't work if this extension is installed
 # as "matplotlib.toolkits.basemap._geos"
-extensions.append(Extension("_geos",['src/_geos.c'],library_dirs=geos_library_dirs,include_dirs=geos_include_dirs,libraries=['geos_c','geos'])) 

+extensions.append(Extension("_geos",['src/_geos.c'],
+                            library_dirs=geos_library_dirs,
+                            runtime_library_dirs=geos_library_dirs,
+                            include_dirs=geos_include_dirs,
+                            libraries=['geos_c','geos']))

then rebuild.  As Eric Firing pointed out to me, adding 
runtime_library_dirs negates the need to set LD_LIBRARY_PATH manually.  
This is already done in svn, and so 0.9.9 will not require manually 
setting LD_LIBRARY_PATH.

HTH,

-Jeff

-- 
Jeffrey S. Whitaker         Phone  : (303)497-6313
Meteorologist               FAX    : (303)497-6449
NOAA/OAR/PSD  R/PSD1        Email  : Jef...@no...
325 Broadway                Office : Skaggs Research Cntr 1D-124
Boulder, CO, USA 80303-3328 Web    : http://tinyurl.com/5telg

Hi Johann,

I believe the scipy optimization package gives a variety of  
optimization algorithms but you would have to implement your own  
codes to fix/thaw parameters. That being said, there is a lot there  
and I haven't dug into all of it into detail. I would suggest posting  
a message to the scipy mailing list after the holidays and you may  
get a better response.

Cheers,
Jessica

On Dec 26, 2007, at 3:52 PM, Johann Cohen-Tanugi wrote:

> hi jessica, thanks.... So scipy.optmizer as it stands cannot do  
> that? I gues I should move the issue to the scipy list then. Yes  
> there is mpfit, there is also pyminuit in google.code that is  
> wrapper of the high energy physics standard package MINUIT, etc....  
> but I would think that fitting data, with fixed/thawed parameters,  
> is a basic feature of a scientific package. As there seems to be a  
> snergy between matplotlib and scipy, I would expect the latter to  
> take care of optimization....
> thanks for the replies,
> Johann
>
> Jessica Lu wrote:
>> Hi Johann,
>>
>> I would recommend using the python mpfit module:
>>
>> http://cars9.uchicago.edu/software/python/mpfit.html
>>
>> Cheers,
>> Jessica
>>
>> On Dec 22, 2007, at 8:57 PM, Johann Cohen-Tanugi wrote:
>>
>>> hi jessica,
>>> This FittingData tutorial is very nice. Could you illustrate how to
>>> fix/thaw parameters?
>>> I did not find any such attribute and when I try some kludges  
>>> they fail
>>> with a msg saying
>>> <type 'exceptions.ValueError'>: shape mismatch: objects cannot be
>>> broadcast to a single shape
>>>
>>>
>>> thanks,
>>> Johann
>>>
>>> -------------------------------------------------------------------- 
>>> -----
>>> This SF.net email is sponsored by: Microsoft
>>> Defy all challenges. Microsoft(R) Visual Studio 2005.
>>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
>>> _______________________________________________
>>> Matplotlib-users mailing list
>>> Mat...@li...
>>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>>
>>
>

Hi all,

Just updated basemap from 0.9.4 to 0.9.8 on Mandriva Linux 2008.  I also
installed basemap-data-fullres-0.9.7.  I've noticed there's a couple of
recent posts about problems (on Macs) with 0.9.8, the solution being to
install setuptools until 0.9.9 comes along; the problem I have is similar to
the posts but not the same, so I'd like to check here before proceeding with
setuptools.

I installed the included geos-2.2.3, then basemap-0.9.8, then
basemap-data-fullres-0.9.7.  However when I now import basemap I get:

In [1]: from matplotlib.toolkits.basemap import Basemap
---------------------------------------------------------------------------
<type 'exceptions.ImportError'>           Traceback (most recent call last)

/home/emason/python/tools/<ipython console> in <module>()

/usr/lib/python2.5/site-packages/matplotlib/toolkits/basemap/__init__.py in
<module>()
----> 1 from basemap import __doc__, __version__
      2 from basemap import *

/usr/lib/python2.5/site-packages/matplotlib/toolkits/basemap/basemap.py in
<module>()
     29 from matplotlib.cbook import is_scalar, dedent
     30 from shapelib import ShapeFile
---> 31 import _geos, pupynere
     32
     33 # basemap data files now installed in
lib/matplotlib/toolkits/basemap/data

<type 'exceptions.ImportError'>: libgeos_c.so.1: cannot open shared object
file: No such file or directory

Yet the file, in fact a link, libgeos_c.so.1, does exist at the location
(/usr/local/lib) where it is supposed to be:

[root@msasa lib]# ll
total 44230
-rw-r--r-- 1 root root 28107924 2007-12-28 16:31 libgeos.a
-rw-r--r-- 1 root root   581806 2007-12-28 16:31 libgeos_c.a
-rwxr-xr-x 1 root root      830 2007-12-28 16:31 libgeos_c.la*
lrwxrwxrwx 1 root root       18 2007-12-28 16:31 libgeos_c.so ->
libgeos_c.so.1.1.1*
lrwxrwxrwx 1 root root       18 2007-12-28 16:31 libgeos_c.so.1 ->
libgeos_c.so.1.1.1*
-rwxr-xr-x 1 root root   452162 2007-12-28 16:31 libgeos_c.so.1.1.1*
-rwxr-xr-x 1 root root      790 2007-12-28 16:31 libgeos.la*
lrwxrwxrwx 1 root root       16 2007-12-28 16:31 libgeos.so ->
libgeos.so.2.2.3*
lrwxrwxrwx 1 root root       16 2007-12-28 16:31 libgeos.so.2 ->
libgeos.so.2.2.3*
-rwxr-xr-x 1 root root 13443604 2007-12-28 16:31 libgeos.so.2.2.3*

I'd appreciate any help with this.

Thanks, Evan

I tried your simple example and I have indeed the following crash when I 
tried to print preview :
---------------------------------------------------------------------------
NotImplementedError                       Traceback (most recent call last)

/usr/lib/python2.5/site-packages/matplotlib/backends/backend_wx.py in 
OnPrintPage(self, page)
   2057
   2058         renderer  = RendererWx(self.canvas.bitmap, 
self.canvas.figure.dpi)
-> 2059         self.canvas.figure.draw(renderer)
   2060         self.canvas.bitmap.SetWidth(  
int(self.canvas.bitmap.GetWidth() * vscale))
   2061         self.canvas.bitmap.SetHeight( 
int(self.canvas.bitmap.GetHeight()* vscale))

/usr/lib/python2.5/site-packages/matplotlib/figure.py in draw(self, 
renderer)
    610
    611         # render the axes
--> 612         for a in self.axes: a.draw(renderer)
    613
    614         # render the figure text

/usr/lib/python2.5/site-packages/matplotlib/axes.py in draw(self, 
renderer, inframe)
   1340
   1341         for zorder, i, a in dsu:
-> 1342             a.draw(renderer)
   1343
   1344         self.transData.thaw()  # release the lazy objects

/usr/lib/python2.5/site-packages/matplotlib/axis.py in draw(self, 
renderer, *args, **kwargs)
    591             tick.set_label1(label)
    592             tick.set_label2(label)
--> 593             tick.draw(renderer)
    594             if tick.label1On and tick.label1.get_visible():
    595                 extent = tick.label1.get_window_extent(renderer)

/usr/lib/python2.5/site-packages/matplotlib/axis.py in draw(self, renderer)
    168             if self.tick2On: self.tick2line.draw(renderer)
    169
--> 170         if self.label1On: self.label1.draw(renderer)
    171         if self.label2On: self.label2.draw(renderer)
    172

/usr/lib/python2.5/site-packages/matplotlib/text.py in draw(self, renderer)
    773     def draw(self, renderer):
    774         self.update_coords(renderer)
--> 775         Text.draw(self, renderer)
    776         if self.get_dashlength() > 0.0:
    777             self.dashline.draw(renderer)

/usr/lib/python2.5/site-packages/matplotlib/text.py in draw(self, renderer)
    325
    326                 renderer.draw_tex(gc, x, y, line,
--> 327                                   self._fontproperties, angle)
    328             return
    329

/usr/lib/python2.5/site-packages/matplotlib/backend_bases.py in 
draw_tex(self, gc, x, y, s, prop, angle, ismath)
    381
    382     def draw_tex(self, gc, x, y, s, prop, angle, ismath='TeX!'):
--> 383         raise NotImplementedError
    384
    385     def draw_text(self, gc, x, y, s, prop, angle, ismath=False):

NotImplementedError:


Not familiar enough with all this to be of much help here...
Johann

Hello,

I would like to make a plot showing data points and a line, where the
legend contains a single point for the data points, and a small line
segment for the line. However, with numpoints = 1, the line is not
shown, as can be seen in the attached figure numpoints1.png. The second
attached figure, desired_legend.png, shows how I would like the legend
to look. I have also attached a simple script that demonstrates the
problem with numpoints=1.

Is there any way to create the legend as I would like it?

Thank you,

Paul

I have developed a plotter software using "WXAgg". ( matplotlib 0.90.1)
It works fine on Windows, but I found some problems on Linux about printing.

Printing problems on Red Hat Linux 5  or Fedra Core 6

  1. You cannot set orientation to LANDSCAPE, it seems "SetOrientation" does 
not work.
  2. When you set  LANDSCAPE manually, only lower half part will be printed.
  3. Printing quality  is far much worse than Windows's printing.

Please try my simple sample program as below.

Noriko Minakawa

--------------------------------------------------------------
import wx
import os
import matplotlib
matplotlib.use('WXAgg')
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigCanvas
from matplotlib.figure import Figure
import matplotlib.numerix as numpy

class PlotFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, -1, "Test Printing with WX Backend")
        self.fig   = Figure(None, 100)
        self.canvas= FigCanvas(self, -1, self.fig)
        self.axes  = self.fig.add_axes([0.15,0.15,0.75,0.75])
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.canvas, 1, wx.LEFT|wx.TOP|wx.GROW)
        self.Fit()
        self.Plot_Data()

    def Print_Data(self):
        self.canvas.printerData.SetPaperId(wx.PAPER_A4)
        self.canvas.printerData.SetOrientation(wx.LANDSCAPE)
        dpi = self.canvas.figure.dpi.get()
        self.canvas.figure.dpi.set(200)
        self.canvas.Printer_Print()
        self.canvas.figure.dpi.set(dpi)
        self.canvas.draw()

    def Plot_Data(self):
        t = numpy.arange(0.0,5.0,0.01)
        s = numpy.sin(2.0*numpy.pi*t)
        c = numpy.cos(0.4*numpy.pi*t)
        self.axes.plot(t,s)
        self.axes.plot(t,c)

if __name__ == '__main__':
    app = wx.PySimpleApp()
    fig = PlotFrame()
    fig.Show(True)
    fig.Print_Data()
    app.MainLoop()
---------------------------------------------------------------- 

hi jessica, thanks.... So scipy.optmizer as it stands cannot do that? I 
gues I should move the issue to the scipy list then. Yes there is mpfit, 
there is also pyminuit in google.code that is wrapper of the high energy 
physics standard package MINUIT, etc.... but I would think that fitting 
data, with fixed/thawed parameters, is a basic feature of a scientific 
package. As there seems to be a snergy between matplotlib and scipy, I 
would expect the latter to take care of optimization....
thanks for the replies,
Johann

Jessica Lu wrote:
> Hi Johann,
>
> I would recommend using the python mpfit module:
>
> http://cars9.uchicago.edu/software/python/mpfit.html
>
> Cheers,
> Jessica
>
> On Dec 22, 2007, at 8:57 PM, Johann Cohen-Tanugi wrote:
>
>> hi jessica,
>> This FittingData tutorial is very nice. Could you illustrate how to
>> fix/thaw parameters?
>> I did not find any such attribute and when I try some kludges they fail
>> with a msg saying
>> <type 'exceptions.ValueError'>: shape mismatch: objects cannot be
>> broadcast to a single shape
>>
>>
>> thanks,
>> Johann
>>
>> ------------------------------------------------------------------------- 
>>
>> This SF.net email is sponsored by: Microsoft
>> Defy all challenges. Microsoft(R) Visual Studio 2005.
>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>

At 1:30 PM -0600 12/26/07, John Hunter wrote:
>On Dec 26, 2007 1:15 PM, Tony Mannucci 
><Ant...@jp...> wrote:
>>  I tried to install basemap 0.9.8 on an OS X system (PPC, 10.4.10),
>>  after installing matplotlib from the latest binary package (0.91.1).
>>  I receive the following error:
>>
>>  >ImportError: No module named pkg_resources
>
>It looks like you need to install setuptools:
>
>http://peak.telecommunity.com/DevCenter/EasyInstall

John,

Yes, thank you. That did the trick. I did setuptools. I guess 
EasyInstall is another package build on that.

http://cheeseshop.python.org/pypi/setuptools

-Tony

-- 
Tony Mannucci
Supervisor, Ionospheric and Atmospheric Remote Sensing Group
  Mail-Stop 138-308,                     Tel > (818) 354-1699
  Jet Propulsion Laboratory,              Fax > (818) 393-5115
  California Institute of Technology,     Email > Ton...@jp...
  4800 Oak Grove Drive,                   http://genesis.jpl.nasa.gov
  Pasadena, CA 91109

Tony Mannucci wrote:
> I tried to install basemap 0.9.8 on an OS X system (PPC, 10.4.10), 
> after installing matplotlib from the latest binary package (0.91.1). 
> I receive the following error:
>
>   
>> [matplotlib/basemap-0.9.8]|2> import matplotlib.toolkits.basemap
>> ---------------------------------------------------------------------------
>> ImportError                               Traceback (most recent call last)
>>
>> /Users/mannucci/Documents/python/matplotlib/basemap-0.9.8/<ipython 
>> console> in <module>()
>>
>> /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/toolkits/basemap/__init__.py 
>> in <module>()
>> ----> 1 from basemap import __doc__, __version__
>>       2 from basemap import *
>>
>> /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/toolkits/basemap/basemap.py 
>> in <module>()
>>      29 from matplotlib.cbook import is_scalar, dedent
>>      30 from shapelib import ShapeFile
>> ---> 31 import _geos, pupynere
>>      32
>>      33 # basemap data files now installed in 
>> lib/matplotlib/toolkits/basemap/data
>>
>> /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/toolkits/basemap/pupynere.py 
>> in <module>()
>>      34 from numpy import ndarray, empty, array, ma, squeeze
>>      35
>> ---> 36 from dap.client import open as open_remote
>>      37 from dap.dtypes import ArrayType, GridType, typemap
>>      38
>>
>> /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/dap/__init__.py 
>> in <module>()
>>       8
>>       9 For more information about the protocol, please check 
>> http://opendap.org.
>>      10 """
>>      11
>> ---> 12 __import__('pkg_resources').declare_namespace(__name__)
>>
>> ImportError: No module named pkg_resources
>>     
>
> It seems that the dap package did not completely install. Is there a 
> directory I should add to my sys.path? Thanks for your help!
>
> -Tony
>
>   
Tony:  There is a hidden dependency on the setuptools module in basemap 
0.9.8.  This will be fixed in 0.9.9, but in the meantime you can just 
install setuptools (http://python.org/pypi/setuptools).

-Jeff

-- 
Jeffrey S. Whitaker         Phone : (303)497-6313
NOAA/OAR/CDC  R/PSD1        FAX   : (303)497-6449
325 Broadway                Boulder, CO, USA 80305-3328

On Dec 26, 2007 1:15 PM, Tony Mannucci <Ant...@jp...> wrote:
> I tried to install basemap 0.9.8 on an OS X system (PPC, 10.4.10),
> after installing matplotlib from the latest binary package (0.91.1).
> I receive the following error:
>
> >ImportError: No module named pkg_resources

It looks like you need to install setuptools:

http://peak.telecommunity.com/DevCenter/EasyInstall

Is there a new version of this which uses numpy instead of Numeric?  I found
the old Numeric version to work very well.

cheers,
William

On Dec 26, 2007 12:58 PM, Jessica Lu <jl...@as...> wrote:

> Hi Johann,
>
> I would recommend using the python mpfit module:
>
> http://cars9.uchicago.edu/software/python/mpfit.html
>
> Cheers,
> Jessica
>
> On Dec 22, 2007, at 8:57 PM, Johann Cohen-Tanugi wrote:
>
> > hi jessica,
> > This FittingData tutorial is very nice. Could you illustrate how to
> > fix/thaw parameters?
> > I did not find any such attribute and when I try some kludges they
> > fail
> > with a msg saying
> > <type 'exceptions.ValueError'>: shape mismatch: objects cannot be
> > broadcast to a single shape
> >
> >
> > thanks,
> > Johann
> >
> > ----------------------------------------------------------------------
> > ---
> > This SF.net email is sponsored by: Microsoft
> > Defy all challenges. Microsoft(R) Visual Studio 2005.
> > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
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> > Matplotlib-users mailing list
> > Mat...@li...
> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
> >
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

I tried to install basemap 0.9.8 on an OS X system (PPC, 10.4.10), 
after installing matplotlib from the latest binary package (0.91.1). 
I receive the following error:

>[matplotlib/basemap-0.9.8]|2> import matplotlib.toolkits.basemap
>---------------------------------------------------------------------------
>ImportError                               Traceback (most recent call last)
>
>/Users/mannucci/Documents/python/matplotlib/basemap-0.9.8/<ipython 
>console> in <module>()
>
>/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/toolkits/basemap/__init__.py 
>in <module>()
>----> 1 from basemap import __doc__, __version__
>       2 from basemap import *
>
>/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/toolkits/basemap/basemap.py 
>in <module>()
>      29 from matplotlib.cbook import is_scalar, dedent
>      30 from shapelib import ShapeFile
>---> 31 import _geos, pupynere
>      32
>      33 # basemap data files now installed in 
>lib/matplotlib/toolkits/basemap/data
>
>/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/toolkits/basemap/pupynere.py 
>in <module>()
>      34 from numpy import ndarray, empty, array, ma, squeeze
>      35
>---> 36 from dap.client import open as open_remote
>      37 from dap.dtypes import ArrayType, GridType, typemap
>      38
>
>/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/dap/__init__.py 
>in <module>()
>       8
>       9 For more information about the protocol, please check 
>http://opendap.org.
>      10 """
>      11
>---> 12 __import__('pkg_resources').declare_namespace(__name__)
>
>ImportError: No module named pkg_resources

It seems that the dap package did not completely install. Is there a 
directory I should add to my sys.path? Thanks for your help!

-Tony

-- 
Tony Mannucci
Supervisor, Ionospheric and Atmospheric Remote Sensing Group
  Mail-Stop 138-308,                     Tel > (818) 354-1699
  Jet Propulsion Laboratory,              Fax > (818) 393-5115
  California Institute of Technology,     Email > Ton...@jp...
  4800 Oak Grove Drive,                   http://genesis.jpl.nasa.gov
  Pasadena, CA 91109

Hi Johann,

I would recommend using the python mpfit module:

http://cars9.uchicago.edu/software/python/mpfit.html

Cheers,
Jessica

On Dec 22, 2007, at 8:57 PM, Johann Cohen-Tanugi wrote:

> hi jessica,
> This FittingData tutorial is very nice. Could you illustrate how to
> fix/thaw parameters?
> I did not find any such attribute and when I try some kludges they  
> fail
> with a msg saying
> <type 'exceptions.ValueError'>: shape mismatch: objects cannot be
> broadcast to a single shape
>
>
> thanks,
> Johann
>
> ---------------------------------------------------------------------- 
> ---
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

Thanks for the bug report.  This is now fixed in svn.  I suspect similar
bugs may lurk in a few other axes methods; I have not checked for them.

Eric

minakawa wrote:
> I  found an errorbar with transform option does not work properly.
> When you use transform option, only X-Y trace shifts, but not errorbar.
> See my sample program below.
> The matlotlib version is 0.90.1, though it seems the latest 0.91.1 ends 
> up same.  
>  
> I want to plot some overlay traces with errorbar.
> Can anybody help me?
>  
> Noriko Minakawa
>  
> --------------------------------------------
> import pylab as P
> from matplotlib.transforms import offset_copy
>  
> x =  [0.1, 1,   5,    6,   9,   11,  12,  13,  14,    15,  16, 21,  22,  
> 23,  24,  40]
> y =  [0.1,0.1, 0.1, 1.5, 0.2, 1.2, 100,  250,  180, 90, 0.1, 0.1 ,1.2, 
> 13.5,0.1, 0.1]
> er = [1, 2, -1, 2, -5, 3, 6, -1, 3, 1, -2, 5, 2, -3, 2, 1]
> 
> fig = P.figure(figsize=(6,6))
> ax = P.subplot(1,1,1)
> 
> transOffset = offset_copy(ax.transData, fig=fig, x = 0.2, y=0.2, 
> units='inches')
> ax.errorbar(x,y, yerr=er, transform=transOffset)
>  
> P.show()
> ---------------------------------------------
> 
> 
> ------------------------------------------------------------------------
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users

I  found an errorbar with transform option does not work properly.
When you use transform option, only X-Y trace shifts, but not errorbar.
See my sample program below.
The matlotlib version is 0.90.1, though it seems the latest 0.91.1 ends up 
same.

I want to plot some overlay traces with errorbar.
Can anybody help me?

Noriko Minakawa

--------------------------------------------
import pylab as P
from matplotlib.transforms import offset_copy

x =  [0.1, 1,   5,    6,   9,   11,  12,  13,  14,    15,  16, 21,  22,  23, 
24,  40]
y =  [0.1,0.1, 0.1, 1.5, 0.2, 1.2, 100,  250,  180, 90, 0.1, 0.1 ,1.2, 
13.5,0.1, 0.1]
er = [1, 2, -1, 2, -5, 3, 6, -1, 3, 1, -2, 5, 2, -3, 2, 1]

fig = P.figure(figsize=(6,6))
ax = P.subplot(1,1,1)

transOffset = offset_copy(ax.transData, fig=fig, x = 0.2, y=0.2, 
units='inches')
ax.errorbar(x,y, yerr=er, transform=transOffset)

P.show()
--------------------------------------------- 

I  found an errorbar with transform option does not work properly.
When you use transform option, only X-Y trace shifts, but not errorbar.
See my sample program below.
The matlotlib version is 0.90.1, though it seems the latest 0.91.1 ends up 
same.

I want to plot some overlay traces with errorbar.
Can anybody help me?

Noriko Minakawa

--------------------------------------------
import pylab as P
from matplotlib.transforms import offset_copy

x =  [0.1, 1,   5,    6,   9,   11,  12,  13,  14,    15,  16, 21,  22,  23, 
24,  40]
y =  [0.1,0.1, 0.1, 1.5, 0.2, 1.2, 100,  250,  180, 90, 0.1, 0.1 ,1.2, 
13.5,0.1, 0.1]
er = [1, 2, -1, 2, -5, 3, 6, -1, 3, 1, -2, 5, 2, -3, 2, 1]

fig = P.figure(figsize=(6,6))
ax = P.subplot(1,1,1)

transOffset = offset_copy(ax.transData, fig=fig, x = 0.2, y=0.2, 
units='inches')
ax.errorbar(x,y, yerr=er, transform=transOffset)

P.show()
--------------------------------------------- 

Bryan Fodness wrote:
>  
> I have a pcolormest and a fill that are plotted on the same graph (they 
> have the same scale).  Is there an easy way
> to only plot the values of pcolormesh that lie in the fill?
> 
> pcolormesh(oX, oY, test, shading='flat', cmap=cm.gray_r)
> fill([-x1,x2,x2,-x1], [-y1,-y1,y2,y2], 'b', alpha=0.2, edgecolor='r')

Do you mean something like this?

ii = (oX > -x1) & (oX < x2)
jj = (oY > -y1) & (oY > y2)

pcolormesh(oX[ii], oY[jj], test[jj,][:,ii])

This assumes your oX and oY are 1-D, so you are plotting rectangular 
mesh.  Correct?

Eric

I have a pcolormest and a fill that are plotted on the same graph (they hav=
e
the same scale).  Is there an easy way
to only plot the values of pcolormesh that lie in the fill?

pcolormesh(oX, oY, test, shading=3D'flat', cmap=3Dcm.gray_r)
fill([-x1,x2,x2,-x1], [-y1,-y1,y2,y2], 'b', alpha=3D0.2, edgecolor=3D'r')


--=20
"The game of science can accurately be described as a never-ending insult t=
o
human intelligence." - Jo=E3o Magueijo

On Dec 23, 2007 7:40 PM, Jeff Whitaker <js...@fa...> wrote:

> Adam:  It only works with 2.2.3.  I have not been able to make it work
> with 3.0.0, so I don't know if it ever will.

Thanks for the clarification Jeff

Cheers

Adam

Adam Mercer wrote:
> Hi
>
> Will basemap work with the newly released GEOS-3.0.0, or does it only
> work with 2.2.3 for now?
>
> Cheers
>
> Adam
>   

Adam:  It only works with 2.2.3.  I have not been able to make it work 
with 3.0.0, so I don't know if it ever will.

-Jeff

-- 
Jeffrey S. Whitaker         Phone : (303)497-6313
NOAA/OAR/CDC  R/PSD1        FAX   : (303)497-6449
325 Broadway                Boulder, CO, USA 80305-3328

Hi

Will basemap work with the newly released GEOS-3.0.0, or does it only
work with 2.2.3 for now?

Cheers

Adam