matplotlib-users — Discussion related to using matplotlib

Re: [Matplotlib-users] Problems installing matplotlib-0.84 on solaris 5.8

[Martin K. <mku...@es...>]

OK,

matplotlib-0.85 gives the identical error.

Installing the newest SWIG was also a failure
for whatever reason.

It's a pitty that matplotlib does no longer work.

Perhaps some of the next releases...

Cheers,
Martin

[Matplotlib-users] weird error with py2exe

[<oli...@ma...>]

Hi there,

I experienced some strange errors when I distributed our application to=

some colleagues in Denmark.

The application uses:

Python 2.4
wxPython 2.5.5.1
numeric 23.7
matplotlib 0.83.1

The GUI was designed with Boa Constructor 0.4.4. The exe-file was compi=
led
with py2exe 0.6.3

A student who works for me has made an .exe-file of the application tha=
t
worked fine on our PC's in Norway (I tested it on around 10 PC's, both
Windows XP and 2000). Last week we had a meeting with some colleagues f=
rom
Denmark who brought their laptops and installed the application.
Installation went fine for all of them, but the application would not r=
un
on 3 out of 9 laptops (both Windows XP and 2000).

I understand that the error has something to do with matplotlib and wit=
h
Unicode displaying the letter '=E6', but I can't find out what the reas=
on is
for this. Strange thing is, we use the same letter here in Norway. My g=
uess
i that it has someting to do with language settings on these 3 PC's, bu=
t I
am not sure about this.

Anyone an idea what went wrong here? Thanks a lot in advance!

Oliver

Here is the error report and the setup.py for py2exe


Error report:
Traceback (most recent call last):
  File "PanelCheck.py", line 4, in ?
  File "PanelCheck_GUI.pyc", line 9, in ?
  File "Line_Plot.pyc", line 3, in ?
  File "Plot_Setup.pyc", line 9, in ?
  File "matplotlib\backends\backend_wxagg.pyc", line 18, in ?
  File "matplotlib\backends\backend_agg.pyc", line 82, in ?
  File "matplotlib\figure.pyc", line 3, in ?
  File "matplotlib\axes.pyc", line 14, in ?
  File "matplotlib\axis.pyc", line 25, in ?
  File "matplotlib\font_manager.pyc", line 993, in ?
  File "matplotlib\font_manager.pyc", line 837, in __init__
  File "matplotlib\font_manager.pyc", line 830, in rebuild
  File "matplotlib\font_manager.pyc", line 456, in createFontDict
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe6' in
position 15: ordinal not in range(128)
Traceback (most recent call last):
  File "PanelCheck.py", line 4, in ?
  File "PanelCheck_GUI.pyc", line 9, in ?
  File "Line_Plot.pyc", line 3, in ?
  File "Plot_Setup.pyc", line 9, in ?
  File "matplotlib\backends\backend_wxagg.pyc", line 18, in ?
  File "matplotlib\backends\backend_agg.pyc", line 82, in ?
  File "matplotlib\figure.pyc", line 3, in ?
  File "matplotlib\axes.pyc", line 14, in ?
  File "matplotlib\axis.pyc", line 25, in ?
  File "matplotlib\font_manager.pyc", line 993, in ?
  File "matplotlib\font_manager.pyc", line 837, in __init__
  File "matplotlib\font_manager.pyc", line 830, in rebuild
  File "matplotlib\font_manager.pyc", line 456, in createFontDict
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe6' in
position 15: ordinal not in range(128)




setup.py for py2exe:
# setup.py
from distutils.core import setup
import py2exe
import glob
import sys


class Target:
    def __init__(self, **kw):
        self.__dict__.update(kw)
        # for the versioninfo resources
        self.version =3D "1.22"
        self.company_name =3D "Matforsk "
        self.copyright =3D "no copyright"
        self.name =3D "PanelCheck"


manifest_template =3D '''
<?xml version=3D"1.0" encoding=3D"UTF-8" standalone=3D"yes"?>
<assembly xmlns=3D"urn:schemas-microsoft-com:asm.v1" manifestVersion=3D=
"1.0">
<assemblyIdentity
    version=3D"5.0.0.0"
    processorArchitecture=3D"x86"
    name=3D"%(prog)s"
    type=3D"win32"
/>
<description>%(prog)s Program</description>
<dependency>
    <dependentAssembly>
        <assemblyIdentity
            type=3D"win32"
            name=3D"Microsoft.Windows.Common-Controls"
            version=3D"6.0.0.0"
            processorArchitecture=3D"X86"
            publicKeyToken=3D"6595b64144ccf1df"
            language=3D"*"
        />
    </dependentAssembly>
</dependency>
</assembly>
'''

RT_MANIFEST =3D 24

PanelCheck_files =3D [
"About.py",
"Correlation_Plot.py",
"FileOpen_Summary.py",
"Line_Plot.py",
"LoadData.py",
"PanelCheck.py",
"PanelCheck_GUI.py",
"pca.py",
"Plot_Setup.py",
"fig.ico",
"about.png",
"logo.png",
"help.chm",
"Tucker1_Plot.py",
"Eggshell_Plot.py",
"pmse_Plot.py",
"SplashScreen.py",
"pstat.py",
"stats.py"
]

data =3D glob.glob(r'C:\Program Files\Python24\share\matplotlib\*')
data.append(r'C:\Program Files\Python24\share\matplotlib\matplotlibrc')=




PanelCheck =3D Target(
    script =3D "PanelCheck.py",
    other_resources =3D [(RT_MANIFEST, 1, manifest_template %
dict(prog=3D"PanelCheck"))],
    icon_resources =3D [(1, "fig.ico")],
    #data_files =3D [("matplotlibdata", data)],
    dest_base =3D "PanelCheck")



setup(  data_files =3D [("matplotlibdata", data), ("",["fig.ico", "help=
.chm",
"about.png", "logo.png"]),
                      ("code", PanelCheck_files)],

      options =3D {"py2exe": { "packages": ["encodings", "pytz", "numar=
ray",
"matplotlib.numerix.random_array"],
                              "bundle_files": 3,
                              "ascii": 1}
                     },
       zipfile =3D None,
       name=3D'PanelCheck',
       version=3D'1.22',
       description=3D'Data Analysis Tool',
       author=3D'Henning Risvik and Oliver Tomic',
       url=3D'http://www.matforsk.no/PanelCheck',
       windows =3D [PanelCheck],
      )




=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Oliver Tomic,
Dr. Scient, Research Scientist
MATFORSK - Norwegian Food Research Institute
Osloveien 1
1430 =C5s
Norway

Tel.: 0047 6497 0252
Fax: 0047 6497 0333
Mob.: 0047 9574 6167
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

http://www.matforsk.no
http://www.matforsk.no/panelcheck=

Re: [Matplotlib-users] Error: "cannot import name rcParams, verbose"

[Paul B. <peb...@gm...>]

On 11/21/05, Alexander Mont <ale...@co...> wrote:
>
> Mr. Kienzle,
>   I just updated my matplotlib from the CVS repository. However when I do
> "import pylab", it igves me different errors depending on what directory =
I
> am in. If I do it in the matplotlib directory I get the error "cannot imp=
ort
> name rcParams, verbose" while in any other directory I just get the error
> "cannot import name verbose". Do you know what the problem is? Also, in t=
he
> matplotlib directory the error comes from the file numerix/__init__.py,
> while in the other directories the error comes from the file cm.py.
>  Finally, is there an equivalent of "make clean" for distutils? Meaning,
> if I want to get rid of all the object files and recreate them to see if
> that works, how do I do that? Or is the only way to do that to remove the
> whole matplotlib directory and re-download from CVS?
>

Try deleting the "build" directory and then rebuilding matplotlib. If that
doesn't work then delete the matplotlib directory in python/site-packages.

Hopefully I'll be able to get this working soon.
>  By the way, when I do get it working do you want me to submit the patch
> for axes.py, or did you already do that?
>  -Alex Mont
>



--
Paul Barrett, PhD Johns Hopkins University
Assoc. Research Scientist Dept of Physics and Astronomy
Phone: 410-516-5190 Baltimore, MD 21218

[Matplotlib-users] Error: "cannot import name rcParams, verbose"

[Alexander M. <ale...@co...>]

Mr. Kienzle,

    I just updated my matplotlib from the CVS repository. However when I =
do "import pylab", it igves me different errors depending on what =
directory I am in. If I do it in the matplotlib directory I get the =
error "cannot import name rcParams, verbose" while in any other =
directory I just get the error "cannot import name verbose". Do you know =
what the problem is? Also, in the matplotlib directory the error comes =
from the file numerix/__init__.py, while in the other directories the =
error comes from the file cm.py.

Finally, is there an equivalent of "make clean" for distutils? Meaning, =
if I want to get rid of all the object files and recreate them to see if =
that works, how do I do that? Or is the only way to do that to remove =
the whole matplotlib directory and re-download from CVS?

Hopefully I'll be able to get this working soon.

By the way, when I do get it working do you want me to submit the patch =
for axes.py, or did you already do that?

-Alex Mont

[Matplotlib-users] axes.set_xticklabels bug?

[Charlie M. <cw...@gm...>]

simple pylab script:

a =3D axes()
a.set_xticklabels(['a', 'b', 'c'])
show()

When I move the mouse around the axes I get this error from the callback:

.......
/usr/local/lib/python2.4/site-packages/matplotlib/ticker.py in
__call__(self, x, pos)
    176         'Return the format for tick val x at position pos'
    177         if pos>=3Dlen(self.seq): return ''
--> 178         else: return self.seq[pos]
    179
    180 class FuncFormatter(Formatter):

TypeError: list indices must be integers

"pos" is None

Any ideas?
- Charlie

CVS and at least GTKAgg and TkAgg

Re: [Matplotlib-users] Re: Axes on top of graphs

[John H. <jdh...@ac...>]

>>>>> "Christian" == Christian David Ott <chr...@gm...> writes:

    Christian> Hi, sorry about my previous e-mail. I have now tried
    Christian> the same with 0.85.  The tick marks are now by default

Yep, the axisbelow property was just added in 0.85 and this controls
whether the ticks and grid lines are drawn above or below your data
lines.

    Christian> on top of the data graphs while the axes lines (please
    Christian> correct my vocabulary usage here, axes lines = figure
    Christian> frame?) are still below.

I see the source of our previous confusion -- matplotlib has a figure
patch and an axes patch. The figure patch controls the backgroud of
the entire figure canvas and the frame of this borders your window or
paper.  The axes patch is the thing surrounding the subplot/axes (eg
the white area where your data are).  I think in your previous emails
when you referred to the "figure frame" you meant the axes frame.  In
which case you would use subplot(111, frameon=False)

    Christian> To get the figure frame drawn on top of everything, one
    Christian> has to modify axes.draw. Namely, one adds to


    Christian> these 4 lines:

    Christian>             if self.axison: if self._frameon:
    Christian> self.axesPatch.set_fill(False)
    Christian> self.axesPatch.draw(renderer)

So basically, you want a second draw of the axespatch edge over the
ticks. Could you post a script w/o these changes that shows the
undesirable effect, so I can see better what the problem is.  I worry
that doing two draws of the axes patch, one w/ the fill first and one
w/o the fill later will screw up the alpha channel of the edgecolor of
the axes patch.  Albeit a corner case.

JDH

[Matplotlib-users] Re: Axes on top of graphs

[Christian D. O. <chr...@gm...>]

Hi,

sorry about my previous e-mail. I have now tried the same with 0.85.
The tick marks are now by default on top of the data graphs while the
axes lines (please correct my vocabulary usage here, axes lines =3D
figure frame?) are still below.

To get the figure frame drawn on top of everything, one
has to modify axes.draw. Namely, one adds to

         if not self._axisbelow:
            if self.axison and not inframe:
                self.xaxis.draw(renderer)
                self.yaxis.draw(renderer)

these 4 lines:

            if self.axison:
                if self._frameon:
                    self.axesPatch.set_fill(False)
                    self.axesPatch.draw(renderer)

. Also, one has to set gca.set_axisbelow(False) for the if block
to be executed.

The additional code draws another figure frame, this time without
filling, on top of the previous one and the data graphs.

- Christian


On 11/19/05, Christian David Ott  wrote:
> Hi,
>
> using the PS Backend and matplotlib 0.82 with python 2.3.5 I have the
> problem that my graphs typically show up on top of the axes lines (the
> figure frame) and tick marks. However, for a journal quality figure, I
> need the axes and the tick marks to be on top of the graph(s).
>
> I looked through the archives and found below e-mail. Has there been
> any progress in fixing this? Has Michael Brady submitted a patch?
>
> Thanks.
>
>  - Christian
>
>

Re: [Matplotlib-users] eps without figure frame

[Christian K. <ck...@ho...>]

John Hunter wrote:
>>>>>>"Christian" == Christian Kristukat <ck...@ho...> writes:
> 
> 
>     Christian> I tried that before. It gives a filled white frame
>     Christian> without border line.  I checked that using skencil and
>     Christian> pstoedit to convert into skencil's own format.
>     Christian> Btw. I'm using a smaller figure size than the default
>     Christian> and the eps always contains a small polygon with 4
>     Christian> nodes down at the left bottom of larger page which is
>     Christian> about DIN A4/US Letter which makes the bounding box
>     Christian> unnecessary big.
> 
> You might want to try again.  This is pretty much guaranteed to work.
> The Figure.draw method in figure.py reads:
> 
>   if self.frameon: self.figurePatch.draw(renderer)
> 

I just checked by inserting a print statement, that self.frameon is True 4 times 
during one run of simple_plot.py with figure(frameon=False)

Christian

Re: [Matplotlib-users] eps without figure frame

[Christian K. <ck...@ho...>]

John Hunter wrote:
>>>>>>"Christian" == Christian Kristukat <ck...@ho...> writes:
> 
> 
>     Christian> I tried that before. It gives a filled white frame
>     Christian> without border line.  I checked that using skencil and
>     Christian> pstoedit to convert into skencil's own format.
>     Christian> Btw. I'm using a smaller figure size than the default
>     Christian> and the eps always contains a small polygon with 4
>     Christian> nodes down at the left bottom of larger page which is
>     Christian> about DIN A4/US Letter which makes the bounding box
>     Christian> unnecessary big.
> 
> You might want to try again.  This is pretty much guaranteed to work.
> The Figure.draw method in figure.py reads:
> 
>   if self.frameon: self.figurePatch.draw(renderer)
> 
> I don't see how the patch can be drawn if frameon is false...

Maybe we're not talking about the same frame? I attached a bitmap created with 
skencil after having converted the eps with pstoedit. I coloured the frame green.

Christian

[Matplotlib-users] Axes on top of graphs

[Christian D. O. <chr...@gm...>]

Hi,

using the PS Backend and matplotlib 0.82 with python 2.3.5 I have the
problem that my graphs typically show up on top of the axes lines (the
figure frame) and tick marks. However, for a journal quality figure, I
need the axes and the tick marks to be on top of the graph(s).

I looked through the archives and found below e-mail. Has there been
any progress in fixing this? Has Michael Brady submitted a patch?

Thanks.

 - Christian


*****************************************************************
 >>>>> "Michael" =3D=3D Michael Brady <mbrady@jp...> writes:

     Michael> I tried setting the z-order of the tick objects, but it
     Michael> looks to me like the ticks are hard-coded to always draw
     Michael> before (underneath) any lines or patches.

 That"s right, they are.  This is a bug and not a feature :-(

 The ticks are drawn as part of the Axis.  See
 matplotlib.axes.Axes.draw, eg

         if self.axison:
             self.xaxis.draw(renderer)
             self.yaxis.draw(renderer)

 The Axis instances (XAxis and YAxis) are comprised of Line2D (the
 ticks) and Text (the labels) instances.

     Michael> Is there a way to tell the Axes to draw the ticks on top
     Michael> of any Polygons instead of underneath?

 As noted above, before any of the zorder sorting is done, the xaxis
 and yaxis are drawn.  One possible solution is to move the axis
 drawing commands to the
 end of the Axes.draw function.  Off the top of
 my head, I don"t see any problem with this approach.  Typically, you
 want the ticks visible.  We"ve talked in the past on the dev list
 about the desirability in supporting ticking inside, center or outside
 the axes box, but it hasn"t been implemented yet.

 Vis-a-vis zorder sorting, a more general solution would be to have a
 method which extracts the Artist primitives (Line2D and Text) from the
 XAxis and YAxis and adds them to the sort, but I"m not sure if this is
 actually better.  In real life, I think you always want them on top.
 Right?

     Michael> If not, it doesn"t look like it would be too hard to
     Michael> modify Axes.draw() to respect the z-order of ticks.  I"m
     Michael> happy to do this, although I"m nervous that it might
     Michael> break stuff that assumes that ticks are always drawn
     Michael> before everything else.  John, do you recommend that I
     Michael> create such a mod?

 Yes, if you can find something that works, and behaves sanely over the
 poorman"s unit tests in examples/backend_driver.py.

 JDH

Re: [Matplotlib-users] eps without figure frame

[John H. <jdh...@ac...>]

>>>>> "Christian" == Christian Kristukat <ck...@ho...> writes:

    Christian> I tried that before. It gives a filled white frame
    Christian> without border line.  I checked that using skencil and
    Christian> pstoedit to convert into skencil's own format.
    Christian> Btw. I'm using a smaller figure size than the default
    Christian> and the eps always contains a small polygon with 4
    Christian> nodes down at the left bottom of larger page which is
    Christian> about DIN A4/US Letter which makes the bounding box
    Christian> unnecessary big.

You might want to try again.  This is pretty much guaranteed to work.
The Figure.draw method in figure.py reads:

  if self.frameon: self.figurePatch.draw(renderer)

I don't see how the patch can be drawn if frameon is false...

JDH

Re: [Matplotlib-users] matplotlib 0.85 problems

[John H. <jdh...@ac...>]

>>>>> "Jeff" == Jeff Whitaker <js...@fa...> writes:

    Jeff> Hi: I just updated to 0.85 which appeared on sf today.  I'm
    Jeff> getting this error using the gtk-agg backend on macos x:

    Jeff> Traceback (most recent call last): File
    Jeff> "/sw/lib/python2.4/site-packages/matplotlib/backends/backend_gtk.py",
    Jeff> line 303, in expose_event self._render_figure(self._pixmap,
    Jeff> w, h) File
    Jeff> "/sw/lib/python2.4/site-packages/matplotlib/backends/backend_gtkagg.py",
    Jeff> line 80, in _render_figure pixbuf =
    Jeff> gtk.gdk.pixbuf_new_from_data( AttributeError: 'module'
    Jeff> object has no attribute 'pixbuf_new_from_data'


    Jeff> 0.84 worked fine. Do I need a newer version of pygtk?

This was the start of an attempt to get rid of the gtkagg extension
code and replace it with pure pygtk calls.  There is an equivalent
method for older version of pygtk.  For now, in _backend_gtkagg.py in
the _render_figure method, just uncomment

        #agg_to_gtk_drawable(pixmap, self.renderer._renderer, None)

and comment out


        buf = self.buffer_rgba(0,0)
        ren = self.get_renderer()
        w = int(ren.width)
        h = int(ren.height)
        pixbuf = gtk.gdk.pixbuf_new_from_data(
            buf, gtk.gdk.COLORSPACE_RGB,  True, 8, w, h, w*4)
        pixmap.draw_pixbuf(pixmap.new_gc(), pixbuf, 0, 0, 0, 0, w, h, gtk.gdk.RGB_DITHER_NONE, 0, 0)


Or upgrade your pygtk (2.4 or later, me thinks)

JDH

[Matplotlib-users] Re: [matplotlib-devel] SpanSelector and figure.subplots_adjust

[Charlie M. <cw...@gm...>]

A challenge to the community! ;)

Run the current cursor.py example with the TkAgg backend. (blitting
should be on)
i.e.  python cursor.py -dTkAgg

Why does the blitting not update the entire axis?  Any help on this is
greatly appreciated.

Thanks,
     Charlie

On 11/10/05, Charlie Moad <cw...@gm...> wrote:
> So this happens with TkAgg and blitting.  Here is the sample script:
>
> #!/usr/bin/env python
> import matplotlib; matplotlib.use('TkAgg')
> import pylab
> from matplotlib.widgets import SpanSelector
>
> fig =3D pylab.figure()
> ax =3D fig.add_subplot(111)
>
> ax.plot(pylab.rand(100))
> def onselect(vmin, vmax):
>     print vmin, vmax
>
> span =3D SpanSelector(ax, onselect, 'horizontal', useblit=3DTrue,
>                     rectprops=3Ddict(alpha=3D0.5, facecolor=3D'red') )
>
> pylab.show()
>
> Adjust the subplot params then you will see the distortion.  With 2
> subplots the spanselector never visually appears, but the callback is
> called.
>
> Thanks,
>      Charlie
>
> On 11/9/05, Charlie Moad <cw...@gm...> wrote:
> >      I will have to do more testing, but I am calling
> > figure.subplots_adjust, not adjusting with the widget.  This is also
> > through the oo interface.  I will try to write a sample script and get
> > back to the list.
> >
> > Thanks,
> >
> > On 11/9/05, John Hunter <jdh...@ac...> wrote:
> > > >>>>> "Charlie" =3D=3D Charlie Moad <cw...@gm...> writes:
> > >
> > >     Charlie> I guess I should have mentioned TkAgg CVS.  I didn't
> > >     Charlie> think the problem would be specific to a backend, so I
> > >     Charlie> didn't try any others.  Also, when I have more than one
> > >     Charlie> subplot, nothing is drawn period.
> > >
> > > tkagg works for me, as do multiple subplots.  Weird.  I'm using
> > > examples/span_selector.py.  You too?
> > >
> > > JDH
> > >
> >
>

[Matplotlib-users] matplotlib 0.85 problems

[Jeff W. <js...@fa...>]

Hi:

I just updated to 0.85 which appeared on sf today.  I'm getting this 
error using the gtk-agg backend on macos x:

Traceback (most recent call last):
  File 
"/sw/lib/python2.4/site-packages/matplotlib/backends/backend_gtk.py", 
line 303, in expose_event
    self._render_figure(self._pixmap, w, h)
  File 
"/sw/lib/python2.4/site-packages/matplotlib/backends/backend_gtkagg.py", 
line 80, in _render_figure
    pixbuf = gtk.gdk.pixbuf_new_from_data(
AttributeError: 'module' object has no attribute 'pixbuf_new_from_data'


0.84 worked fine. Do I need a newer version of pygtk?

-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

Re: [Matplotlib-users] eps without figure frame

[Christian K. <ck...@ho...>]

John Hunter wrote:
>>>>>>"Christian" == Christian Kristukat <ck...@ho...> writes:
> 
> 
>     Christian> but now the frame line is back again - in white.
> 
>     Christian> Any other ideas?
> 
> You want 
> 
>   fig = figure(frameon=False)
> 
> or for an existing fig
> 
>   fig.frameon = False

I tried that before. It gives a filled white frame without border line.
I checked that using skencil and pstoedit to convert into skencil's own format.
Btw. I'm using a smaller figure size than the default and the eps always
contains a small polygon with 4 nodes down at the left bottom of larger page
which is about DIN A4/US Letter which makes the bounding box unnecessary big.

Christian

Re: [Matplotlib-users] eps without figure frame

[John H. <jdh...@ac...>]

>>>>> "Christian" == Christian Kristukat <ck...@ho...> writes:

    Christian> but now the frame line is back again - in white.

    Christian> Any other ideas?

You want 

  fig = figure(frameon=False)

or for an existing fig

  fig.frameon = False

JDH

Re: [Matplotlib-users] eps without figure frame

[Christian K. <ck...@ho...>]

John Hunter wrote:
>>>>>>"Christian" == Christian Kristukat <ck...@ho...> writes:
> 
> 
>     Christian> Hi, I'm trying to create an eps file which does not
>     Christian> have a figure frame. I used figurePatch.fill = False to
>     Christian> prevent filling but there's still a white frame drawn
>     Christian> around the figure which is visible when putting it on a
>     Christian> coloured background.
> 
>     Christian> figurePatch.set_lw(0.0) didn't help neither.
> 
>     Christian> figure(frameon=False) seems to have no effect.
> 
> The standard trick is to set the figure facecolor and edgecolor to be
> the same.  For whatever reason, a linewidth of 0 is not handled
> consistently across ps drivers.
> 
> setp(figurePatch, facecolor=somecolor, edgecolor=somecolor, linewidth=0)

Indeed the frame line is not drawn in that case, but it is still beeing filled.
To prevent filling I tried:

f.figurePatch.fill = False
setp(f.figurePatch, facecolor='black', edgecolor='black', linewidth=0)

but now the frame line is back again - in white.

Any other ideas?

Christian

Re: [Matplotlib-users] eps without figure frame

[Robert K. <rob...@gm...>]

John Hunter wrote:

> The standard trick is to set the figure facecolor and edgecolor to be
> the same.  For whatever reason, a linewidth of 0 is not handled
> consistently across ps drivers.

In the PostScript model (and thus also PDF), a linewidth of 0 means "1
pixel at the rendered resolution," not that the line is invisible.

-- 
Robert Kern
rob...@gm...

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

Re: [Matplotlib-users] Problem (and possible fix) with gcc 4.0.2

[John H. <jdh...@ac...>]

>>>>> "E" == E David Huckaby <e.d...@NE...> writes:
 
    E> If the line: std::string stdtext; is changed to std::string
    E> stdtest = "";
 
    E> then it seems to work fine.
 
Hmm, that's surprising.  Does the standard define what the default
initialization value for std::string should be.  Me thinks it would be
""; In any case, I made the change.  Can't hurt.

Thanks,
JDH
 
 
 
 
 

Re: [Matplotlib-users] Problems installing matplotlib-0.84 on solaris 5.8

[John H. <jdh...@ac...>]

>>>>> "Martin" == Martin Kuemmel <mku...@es...> writes:

    Martin> Dear all, an attempt to update from matplotlib-0.71 to
    Martin> matplotlib-0.84 on a solaris 5.8 (GCC-3.3.2, Python 2.4.2)
    Martin> machine failed. The error message is:

    Martin> In file included from src/_na_backend_agg.cpp:24:
    Martin> src/swig_runtime.h: In function `int
    Martin> SWIG_Python_ConvertPtr(PyObject*, void**, swig_type_info*,
    Martin> int)': src/swig_runtime.h:1128: error: `Py_False'
    Martin> undeclared (first use this function)
    Martin> src/swig_runtime.h:1128: error: (Each undeclared
    Martin> identifier is reported only once for each function it
    Martin> appears in.)  src/swig_runtime.h: In function `PyObject*
    Martin> SWIG_Python_NewPointerObj(void*, swig_type_info*, int)':
    Martin> src/swig_runtime.h:1236: error: `Py_True' undeclared
    Martin> (first use this function) error: command 'gcc' failed with
    Martin> exit status 1

Try regenerating the SWIG headers on your local machine by installing
*the most recent* version of SWIG and then running

python makeswig.py

before trying to build.  This will regenerate the SWIG runtime.

Alternatively, you could try with mpl 0.85 which has a new version of
SWIG headers (built on a solaris box, coincidentally)

JDH

Re: [Matplotlib-users] adding a logo image to a plot

[John H. <jdh...@ac...>]

>>>>> "Andrew" == Andrew Straw <str...@as...> writes:

    Andrew> You can use a combination of axes() to define where you
    Andrew> want the image and imshow() to define the image.  Use
    Andrew> frame_on=False with axes(). You can pass a PIL image
    Andrew> directly to imshow(), and that way you won't have to use
    Andrew> imread, (although you'd have to use Image.open()).

If your logo is a fixed size in pixels, you can also use figimage to
place an unscaled image directly onto the canvas.

A wiki entry on matplotlib images + PIL would be useful.

JDH

Re: [Matplotlib-users] eps without figure frame

[John H. <jdh...@ac...>]

>>>>> "Christian" == Christian Kristukat <ck...@ho...> writes:

    Christian> Hi, I'm trying to create an eps file which does not
    Christian> have a figure frame. I used figurePatch.fill = False to
    Christian> prevent filling but there's still a white frame drawn
    Christian> around the figure which is visible when putting it on a
    Christian> coloured background.

    Christian> figurePatch.set_lw(0.0) didn't help neither.

    Christian> figure(frameon=False) seems to have no effect.

The standard trick is to set the figure facecolor and edgecolor to be
the same.  For whatever reason, a linewidth of 0 is not handled
consistently across ps drivers.

setp(figurePatch, facecolor=somecolor, edgecolor=somecolor, linewidth=0)

should work.

JDH



    Christian> Thank you in advance, Christian


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[Matplotlib-users] eps without figure frame

[Christian K. <ck...@ho...>]

Hi,
I'm trying to create an eps file which does not have a figure frame. I used
figurePatch.fill = False
to prevent filling but there's still a white frame drawn around the figure which
is visible when putting it on a coloured background.

figurePatch.set_lw(0.0)
didn't help neither.

figure(frameon=False)
seems to have no effect.

Thank you in advance, Christian

[Matplotlib-users] "Memory Error" with pylab.plot and possible fix

[E D. H. <e.d...@NE...>]

I get a "Memory Error" when
I execute the following:
 
import numarray
import pylab
N = 100000 # or any large number
pylab.plot( numarray.arange(N) )
pylab.show()
 
I built using gcc 4.0.2 with matplotlib 0.85 and numarray 1.4.1
 
I think I tracked down the problem to the routine FT2Font::set_text()
in file "ft2font.cpp"
 
if the line:
std::string stdtext;
is changed to:
std::string stdtext = "";
 
seems to fix the problem.
 
Dave
 
 

[Matplotlib-users] Problem (and possible fix) with gcc 4.0.2

[E D. H. <e.d...@NE...>]

Executing the following:
 
import pylab, numarray
N = 100000
pylab.plot( numarray(N) )
pylab.show()
 
results in a "Memory Error".
I compiled using gcc 4.0.2 with numarray 1.4.1 and matplotlib 0.85.
 
I think I tracked down the error to the routine "FT2Font::set_text()"
in
"ft2font.cpp".
 
If the line:
std::string stdtext;
is changed to
std::string stdtest = "";
 
then it seems to work fine.
 
Dave