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> Is there a quick fix I could do for now? (besides commenting out the offending
> line?)

It turned out that commenting out the offending six 
lines was a perfect quick fix.

-Jim

Paul Barrett wrote:
> On 11/8/05, *Cory Davis* <cd...@st...
> <mailto:cd...@st...>> wrote:
> 
>     Thanks Robert,
>     Unfortunately I can't easily do this on my work machine. Our sys-admins
>     installed matplotlib release version 0.83.2. If your change is already
>     in 0.84 I can get them to upgrade, but I don't think they are so
>     keen on
>     CVS.  Can you suggest a quick hack in the meantime?
> 
> Have you read this page: http://matplotlib.sourceforge.net/fonts.html ?

It used to be that those settings were not honored when using (La)TeX.

The relevant changes are in texmanager.py (and I don't recall if they
are in 0.84).

    def get_tex_command(self, tex, fname):

        fontcmd = {'sans-serif' : r'{\sffamily %s}',
                   'monospace'  : r'{\ttfamily %s}'}.get(
            rcParams['font.family'], r'{\rmfamily %s}')
        tex = fontcmd % tex

Add that snippet to the method and you should be good to go.

-- 
Robert Kern
rk...@uc...

"In the fields of hell where the grass grows high
 Are the graves of dreams allowed to die."
  -- Richard Harter

On Thu, 2005-11-03 at 11:10 -0500, Paul Kienzle wrote:
> However, the problem is still that pcolor is too slow to use it
> interactively on a plot with a half-dozen 200x608 warped grids, even
> with shading='flat' and no antialiasing.

I posted a CVS patch to the devel list a while ago which implemented an
alternate image class which could plot data on a stretched (rectangular)
grid much faster than pcolor can.  The patch wasn't entirely complete as
I'm unsure what the user-interface should be but it is usable and does
what you seem to want to do without additional dependencies and with
fast zooming and panning once data is loaded.  I've tested with data up
to 2048x2048 in size and it's quite usable on my laptop.

If you are interested I can give you a patch against the current CVS.

Nich

Hi, I'm using matplotlib  0.84 on Windows XP, Python 2.4 WxWidgets 2.6.1 w/
numarray.

I'm embedding in a wxPython app, following the example in embedding_in_wx.py in
the examples directory.  This app shows the same problem.  I can use the + -
keys to zoom into the graph vertically, but when I try the horizontal buttons:

I'm getting the message:
Line2D instance has no attribute 'set_xclip'
(whole log is below.)

The zooming is actually happening, If I force a refresh of the app, the zoom
happened, but because of the exception the screen update doesn't happen
automatically.

Is there a quick fix I could do for now? (besides commenting out the offending
line?)

Thanks,
-Jim Carroll

Traceback (most recent call last):
  File "matplotlib\backends\backend_wx.pyo", line 1858, in _onLeftScroll
  File "matplotlib\backends\backend_wx.pyo", line 1811, in panx
  File "matplotlib\axes.pyo", line 2111, in panx
AttributeError: Line2D instance has no attribute 'set_xclip'
Traceback (most recent call last):
  File "matplotlib\backends\backend_wx.pyo", line 1866, in _onXZoomIn
  File "matplotlib\backends\backend_wx.pyo", line 1825, in zoomx
  File "matplotlib\axes.pyo", line 3598, in zoomx
AttributeError: Line2D instance has no attribute 'set_xclip'
Traceback (most recent call last):
  File "matplotlib\backends\backend_wx.pyo", line 1866, in _onXZoomIn
  File "matplotlib\backends\backend_wx.pyo", line 1825, in zoomx
  File "matplotlib\axes.pyo", line 3598, in zoomx
AttributeError: Line2D instance has no attribute 'set_xclip'

On 11/8/05, Cory Davis <cd...@st...> wrote:
>
> Thanks Robert,
> Unfortunately I can't easily do this on my work machine. Our sys-admins
> installed matplotlib release version 0.83.2. If your change is already
> in 0.84 I can get them to upgrade, but I don't think they are so keen on
> CVS. Can you suggest a quick hack in the meantime?

Have you read this page: http://matplotlib.sourceforge.net/fonts.html ?

If not, then a brief summary is: You should be able set the default font in
your matplotlibrc file. If you want the labels to be different than the res=
t
of the plot, then you'll need to create a FontProperties object and pass it
to the axes.set_xlabel() method before plotting, i.e.

> myaxes =3D plot(...)
> myfont =3D FontProperties(fontfamily=3D'sanserif')
> myaxes.set_label('my text', fontdict=3Dmyfont)
> plot(...)

See also the font_properties_demo.py

-- Paul

Cheers,
> Cory.
>
>
> Robert Kern wrote:
> > Cory Davis wrote:
> >
> >>Hi all,
> >>I prefer san serif ticklabels on my matplotlib plots. Can anyone sugges=
t
> >>an easy of making this happen when using TeX/LateX to handle text?
> >
> >
> > Update to the latest CVS, and I believe everything will Just Work.
> >
>
> --
> ---------------------------------------------------
> Cory Davis
> Institute for Atmospheric and Environmental Science
> Room 307, Crew Building, Kings Buildings,
> University of Edinburgh. Edinburgh EH9 3JN
> phone: +44 131 6505092
> www: http://www.geos.ed.ac.uk/contacts/homes/cdavis
>
>
> -------------------------------------------------------
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>

Thanks Robert,
Unfortunately I can't easily do this on my work machine. Our sys-admins 
installed matplotlib release version 0.83.2. If your change is already 
in 0.84 I can get them to upgrade, but I don't think they are so keen on 
CVS.  Can you suggest a quick hack in the meantime?

Cheers,
Cory.

Robert Kern wrote:
> Cory Davis wrote:
> 
>>Hi all,
>>I prefer san serif ticklabels on my matplotlib plots. Can anyone suggest
>>an easy of making this happen when using TeX/LateX to handle text?
> 
> 
> Update to the latest CVS, and I believe everything will Just Work.
> 

-- 
---------------------------------------------------
Cory Davis
Institute for Atmospheric and Environmental Science
Room 307, Crew Building, Kings Buildings,
University of Edinburgh. Edinburgh EH9 3JN
phone: +44 131 6505092
www: http://www.geos.ed.ac.uk/contacts/homes/cdavis

Cory Davis wrote:
> Hi all,
> I prefer san serif ticklabels on my matplotlib plots. Can anyone suggest
> an easy of making this happen when using TeX/LateX to handle text?

Update to the latest CVS, and I believe everything will Just Work.

-- 
Robert Kern
rk...@uc...

"In the fields of hell where the grass grows high
 Are the graves of dreams allowed to die."
  -- Richard Harter

Hi all,
I prefer san serif ticklabels on my matplotlib plots. Can anyone suggest 
an easy of making this happen when using TeX/LateX to handle text?
Cheers,
Cory.

-- 
---------------------------------------------------
Cory Davis
Institute for Atmospheric and Environmental Science
Room 307, Crew Building, Kings Buildings,
University of Edinburgh. Edinburgh EH9 3JN
phone: +44 131 6505092
www: http://www.geos.ed.ac.uk/contacts/homes/cdavis

OK, reading your discussions about the same problem with Numeric I 
solved, but now I have another problem and I think it is related with 
numarray-only installation...

When I try to run image_demo.py a get this error:

** (image_demo.py:24293): WARNING **: `GtkTextSearchFlags' is not an 
enum type
Traceback (most recent call last):
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtk.py", 
line 318, in expose_event
     self._render_figure(self._pixmap, w, h)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtkagg.py", 
line 70, in _render_figure
     FigureCanvasAgg.draw(self)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_agg.py", 
line 382, in draw
     self.figure.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/figure.py", 
line 520, in draw
     for a in self.axes: a.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/axes.py", line 
1373, in draw
     im.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
205, in draw
     im = self.make_image()
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
127, in make_image
     im = _image.fromarray(x, 0)
ValueError: Array must be rank 2 or 3 of doubles
Traceback (most recent call last):
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtk.py", 
line 318, in expose_event
     self._render_figure(self._pixmap, w, h)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtkagg.py", 
line 70, in _render_figure
     FigureCanvasAgg.draw(self)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_agg.py", 
line 382, in draw
     self.figure.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/figure.py", 
line 520, in draw
     for a in self.axes: a.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/axes.py", line 
1373, in draw
     im.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
205, in draw
     im = self.make_image()
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
127, in make_image
     im = _image.fromarray(x, 0)
ValueError: Array must be rank 2 or 3 of doubles
Traceback (most recent call last):
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtk.py", 
line 318, in expose_event
     self._render_figure(self._pixmap, w, h)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtkagg.py", 
line 70, in _render_figure
     FigureCanvasAgg.draw(self)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_agg.py", 
line 382, in draw
     self.figure.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/figure.py", 
line 520, in draw
     for a in self.axes: a.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/axes.py", line 
1373, in draw
     im.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
205, in draw
     im = self.make_image()
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
127, in make_image
     im = _image.fromarray(x, 0)
ValueError: Array must be rank 2 or 3 of doubles
Traceback (most recent call last):
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtk.py", 
line 318, in expose_event
     self._render_figure(self._pixmap, w, h)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtkagg.py", 
line 70, in _render_figure
     FigureCanvasAgg.draw(self)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_agg.py", 
line 382, in draw
     self.figure.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/figure.py", 
line 520, in draw
     for a in self.axes: a.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/axes.py", line 
1373, in draw
     im.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
205, in draw
     im = self.make_image()
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
127, in make_image
     im = _image.fromarray(x, 0)
ValueError: Array must be rank 2 or 3 of doubles
Traceback (most recent call last):
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtk.py", 
line 318, in expose_event
     self._render_figure(self._pixmap, w, h)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtkagg.py", 
line 70, in _render_figure
     FigureCanvasAgg.draw(self)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_agg.py", 
line 382, in draw
     self.figure.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/figure.py", 
line 520, in draw
     for a in self.axes: a.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/axes.py", line 
1373, in draw
     im.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
205, in draw
     im = self.make_image()
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
127, in make_image
     im = _image.fromarray(x, 0)
ValueError: Array must be rank 2 or 3 of doubles
Traceback (most recent call last):
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtk.py", 
line 318, in expose_event
     self._render_figure(self._pixmap, w, h)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtkagg.py", 
line 70, in _render_figure
     FigureCanvasAgg.draw(self)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_agg.py", 
line 382, in draw
     self.figure.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/figure.py", 
line 520, in draw
     for a in self.axes: a.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/axes.py", line 
1373, in draw
     im.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
205, in draw
     im = self.make_image()
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
127, in make_image
     im = _image.fromarray(x, 0)
ValueError: Array must be rank 2 or 3 of doubles
Traceback (most recent call last):
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtk.py", 
line 318, in expose_event
     self._render_figure(self._pixmap, w, h)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_gtkagg.py", 
line 70, in _render_figure
     FigureCanvasAgg.draw(self)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/backends/backend_agg.py", 
line 382, in draw
     self.figure.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/figure.py", 
line 520, in draw
     for a in self.axes: a.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/axes.py", line 
1373, in draw
     im.draw(renderer)
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
205, in draw
     im = self.make_image()
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/image.py", line 
127, in make_image
     im = _image.fromarray(x, 0)
ValueError: Array must be rank 2 or 3 of doubles

Can you help me?

Thank you!

Luigi

>>>>> "Clovis" == Clovis Goldemberg  writes:

    Clovis> The question is: "why isn't the memory collected after
    Clovis> closing the figure?". The real program I developed builds
    Clovis> 5~15 graphic windows and the required memory is very
    Clovis> large.

What makes you think the memory is not being collected?
Collecting memory is not necessarily the same as freeing memory, and
freeing memory is not necessarily the same as returning the memory
to the operating system. I think you may be assuming two things
which are incorrect.

1) When an application frees memory it is returned to the operating
system. See
http://www.onlamp.com/pub/a/onlamp/2005/10/27/memory-management.html
where it says
"An additional point is that malloc does not normally return the freed
memory to the operating system; it remains owned by the process until
it terminates."

2) When the garbage collector collects an unused object it frees the
unused memory.
I don't know the specific details of the Python garbage collector, but
in general I believe garbage collectors effectively wrap calls to
malloc() and free(), and manage larger blocks or pools of
memory. When an object is collected the memory is marked as unused but
is not necessarily freed, it can be reused for the next object 
allocation - thereby saving one free() and one or more malloc() calls.

Steve

Send instant messages to your online friends http://au.messenger.yahoo.com 

Hi all.

I installed matplotlib using a python distribution with only numarray 
installed (no Numeric). The compilation was fine (but some troubles 
locating the GTK libraries... I solved) but when I started my python 
shell and I imported pylab I got this error:

Traceback (most recent call last):
   File "<stdin>", line 1, in ?
   File "***/installation/lib/python2.3/site-packages/pylab.py", line 1, 
in ?
     from matplotlib.pylab import *
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/pylab.py", line 
194, in ?
     import cm
   File "***/installation/lib/python2.3/site-packages/matplotlib/cm.py", 
line 5, in ?
     import colors
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/colors.py", 
line 33, in ?
     from numerix import array, arange, take, put, Float, Int, where, \
   File 
"***/installation/lib/python2.3/site-packages/matplotlib/numerix/__init__.py", 
line 58, in ?
     from Numeric import *
ImportError: No module named Numeric
 >

(I replaced the installation dir with ***)

OK, so I copied and modified the ~/.matplotlib/matplotlibrc file defining:

numerix      : numarray

but nothing happened, the same error occured.

The only way I found to use matplotlib is modifing the file:

***/installation/lib/python2.3/site-packages/matplotlib/numerix/__init__.py

with a trick.

Is it an installation bug?

Thanks.

Luigi

Hi John,

Do you recieve the 2 scripts i send you concerning this problem?

The mails is dated from 02/11/2005 09:49

Rergards,
Philippe Collet

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