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[Matplotlib-users] Type 1 font in figures needed

From: David R. <d.p...@sm...> - 2010年05月25日 20:10:38

The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.

Re: [Matplotlib-users] Mac backend problems for nearly all backends.

From: Jonathan S. <jjs...@vc...> - 2010年05月25日 19:35:28

I've experienced many of the same problems on Mac OS X 10.6.3 (Snow 
Leopard). I have python/scipy/numpy/matplotlib/ipython all installed 
via Macports. I found the MacOSX backend to work OK, but I could not 
save a figure through the GUI. I finally have the WXagg backend 
working, but that required installed WXPython with the gtk/X11 backend.
HTH,
Jonathan
On 5/25/10 13:19 , mat...@li... wrote:
> Date: 2010年5月25日 12:58:49 -0600
> From: Daniel Welling<dan...@gm...>
> Subject: [Matplotlib-users] Mac backend problems for nearly all
> 	backends.
> To:mat...@li...
> Message-ID:
> 	<AAN...@ma...>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Greetings.
>
> I did quite a bit of digging on this and cannot find similar problems, but
> if I did miss an earlier discussion, then I apologize.
>
> In any case, I have been having royal problems with GUI backends and
> matplotlib.
> Some background on where I've been having these problems:
> Machine 1: OSX 10.5.8 G5 PPC
> Machine 2: OSX 10.5.7 Macbook pro/Intel
> Code versions: python 2.5.4, Numpy 1.3.0, Scipy 0.7.0 (all obtained through
> fink.)
> MPL versions: 99.0.1 and 99.1.1 (Older obtained through fink, newer
> installed from source.)
> Compilers: gcc/g++ 4.0.1/Mac.
>
> Here are the issues; behavior is consistent on both machines:
>
> MacOSX backend: Loads plots quickly, but when I try to save, I cannot type
> in the file name area of the save file dialog. Furthermore, with ipython, I
> can continue to use the ipython prompt up until the I shut the plot window.
> ipython then freezes until I control-c it. This occurs in both versions.
>
> TkAgg backend: In 99.0.1, this works fine. However, it is slow, hence my
> want for a different working backend. in 99.1.1, the plot window opens but
> the picture is never drawn. After a moment, segfault back to the x11
> prompt. Blerg.
>
> I've tried nearly all of the GUI tool kits, but ran into some problem:
> GtkAgg: Bad color (e.g. the background is pink rather than gray, color
> tables are way goofed up. Writes to file fine.)
> GtkCairo: looks great, crashes ipython on resize.
> Wx: color issues, not stable.
> Qt: installs from fink, but won't load.
> Fltk: Couldn't get it to install via fink; can't remember why.
>
> In any case, it's not the Gtk/Qt/Wx problems that are important, it's the
> OSX backend issue. Others whom I work with do not have this issue, but
> installed using the EPD.
> Has anyone else experienced such problems? Anyone know possible fixes?
> Given that this occurs on two different machines with two different MPL
> versions (a total of 4 combinations), I'm guessing it's my fault somehow.
>
> Thanks for your help; let me know if there's more info I can provide.

Re: [Matplotlib-users] matplotlib font in cairo

From: Frank A. <cop...@gm...> - 2010年05月25日 19:19:52

I've found a little work-a-round to get my custom font.
Here it is:
from ctypes import windll
gdi32 = windll.gdi32
FR_PRIVATE = 0x10
gdi32.AddFontResourceExA(FILENAME_OF_TTF,FR_PRIVATE,0)
greetz
Frank
Am 18.05.2010 16:09, schrieb Michael Droettboom:
> We went through this a few years ago on the Cairo mailing list.
> The short answer is you need to copy the fonts from mpl-data to
> C:\Windows\Fonts to correctly use Cairo.
> 
> The long answer: Cairo uses fontconfig for font lookup, which by default
> searches the system font directory (C:\Windows\Fonts). There is an
> fontconfig API to add another font directory to search, but it is not
> exposed to Python. The cairo guys don't want to expose it in pycairo
> because that API is not technically part of cairo, but there isn't a
> proper Python wrapper to fontconfig, so until one is created we're sort
> of left with our hands tied.
> 
> This is probably worthy of a FAQ in the docs.
> 
> Mike
> 
> cop...@gm... wrote:
>> Hallo,
>>
>> I'm try to use MathTextParser output for cairo in my wxpython gui.
>> Works well under ubunutu linux (maybe dublicated font) but fails under
>> windows (screenshot:
>> http://www.ubuntu-pics.de/bild/62985/auswahl_017_RC86gk.png ).
>>
>> How to tell cairo to use the font file from mpl-data?
>>
>> Here some code:
>>
>> from matplotlib.mathtext import MathTextParser
>> from matplotlib.font_manager import ttfFontProperty
>> import wx
>> import wx.lib.wxcairo
>> import cairo
>>
>> #...
>> MPC = MathTextParser("Cairo")
>> dc = wx.BufferedPaintDC(self)
>> ctx = wx.lib.wxcairo.ContextFromDC(dc)
>> #...
>> width, height, descent, glyphs, rects =
>> self.mathtext_parser.parse(r"$a_0+a_1\xi+a_2\xi^2+a_3\xi^3$",dpi,prop)
>> #...
>>
>> for font, fontsize, s, ox, oy in glyphs:
>> #...
>> fontProp = ttfFontProperty(font)
>> #...
>> ctx.select_font_face (fontProp.name,
>> self.fontangles [fontProp.style],
>> self.fontweights[fontProp.weight])
>>
>> #...
>> ctx.show_text(s.encode("utf-8"))
>> #...
>> #...
>>
>> greetz
>>
>> Frank
>>
>> ------------------------------------------------------------------------------
>>
>>
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>> 
>

[Matplotlib-users] Mac backend problems for nearly all backends.

From: Daniel W. <dan...@gm...> - 2010年05月25日 18:58:58

Greetings.
I did quite a bit of digging on this and cannot find similar problems, but
if I did miss an earlier discussion, then I apologize.
In any case, I have been having royal problems with GUI backends and
matplotlib.
Some background on where I've been having these problems:
Machine 1: OSX 10.5.8 G5 PPC
Machine 2: OSX 10.5.7 Macbook pro/Intel
Code versions: python 2.5.4, Numpy 1.3.0, Scipy 0.7.0 (all obtained through
fink.)
MPL versions: 99.0.1 and 99.1.1 (Older obtained through fink, newer
installed from source.)
Compilers: gcc/g++ 4.0.1/Mac.
Here are the issues; behavior is consistent on both machines:
MacOSX backend: Loads plots quickly, but when I try to save, I cannot type
in the file name area of the save file dialog. Furthermore, with ipython, I
can continue to use the ipython prompt up until the I shut the plot window.
ipython then freezes until I control-c it. This occurs in both versions.
TkAgg backend: In 99.0.1, this works fine. However, it is slow, hence my
want for a different working backend. in 99.1.1, the plot window opens but
the picture is never drawn. After a moment, segfault back to the x11
prompt. Blerg.
I've tried nearly all of the GUI tool kits, but ran into some problem:
GtkAgg: Bad color (e.g. the background is pink rather than gray, color
tables are way goofed up. Writes to file fine.)
GtkCairo: looks great, crashes ipython on resize.
Wx: color issues, not stable.
Qt: installs from fink, but won't load.
Fltk: Couldn't get it to install via fink; can't remember why.
In any case, it's not the Gtk/Qt/Wx problems that are important, it's the
OSX backend issue. Others whom I work with do not have this issue, but
installed using the EPD.
Has anyone else experienced such problems? Anyone know possible fixes?
Given that this occurs on two different machines with two different MPL
versions (a total of 4 combinations), I'm guessing it's my fault somehow.
Thanks for your help; let me know if there's more info I can provide.

Re: [Matplotlib-users] Mac backend problems for nearly all backends.

From: Daniel W. <dan...@gm...> - 2010年05月25日 18:51:15

$%$^&#!!! My sincere apologies, gmail sent before I was ready. To
continue:
GtkCairo: looks great, crashes ipython on resize.
Wx: color issues, not stable.
Qt: installs from fink, but won't load.
In any case, it's not the Gtk/Qt/Wx problems that are important, it's the
OSX backend issue. Others whom I work with do not have this issue, but
installed using EPD.
Has anyone else experienced such problems?
Thanks for your help; let me know if there's more info I can provide.
-dw
On Tue, May 25, 2010 at 12:47 PM, Daniel Welling <dan...@gm...>wrote:
> Greetings.
>
> I did quite a bit of digging on this and cannot find similar problems, but
> if I did miss an earlier discussion, then I apologize.
>
> In any case, I have been having royal problems with GUI backends and
> matplotlib.
> Some background on where I've been having these problems:
> Machine 1: OSX 10.5.8 G5 PPC
> Machine 2: OSX 10.5.7 Macbook pro/Intel
> Code versions: python 2.5.4, Numpy 1.3.0, Scipy 0.7.0 (all obtained through
> fink.)
> MPL versions: 99.0.1 and 99.1.1 (Older obtained through fink, newer
> installed from source.)
>
> Here are the issues; behavior is consistent on both machines:
>
> MacOSX backend: Loads plots quickly, but when I try to save, I cannot type
> in the file name area of the save file dialog. Furthermore, with ipython, I
> can continue to use the ipython prompt up until the I shut the plot window.
> ipython then freezes until I control-c it. This occurs in both versions.
>
> TkAgg backend: In 99.0.1, this works fine. However, it is slow, hence my
> want for a different working backend. in 99.1.1, the plot window opens but
> the picture is never drawn. After a moment, segfault back to the x11
> prompt. Blerg.
>
> GtkAgg: Bad color (e.g. the background is pink rather than gray, color
> tables are way goofed up. Writes to file fine.)
>
>

Re: [Matplotlib-users] How to have few marks on the lines?

From: Omer K. <Ome...@ce...> - 2010年05月25日 17:52:51

Hi John,
Thanks a lot for the example code; it answered my question.
Best Regards,
Omer
On Tue, May 25, 2010 at 14:25, John Hunter <jd...@gm...> wrote:
> On Tue, May 25, 2010 at 6:46 AM, Omer Khalid <Ome...@ce...> wrote:
> > Hi Jae,
> > Thanks for your reply and letting me know about this. Can you please
> point
> > me to some code example?
>
> In [226]: t = np.arange(0, 2, 0.05)
>
> In [227]: s = np.sin(2*np.pi*t)
>
> In [228]: plot(t, s, '-')
> Out[228]: [<matplotlib.lines.Line2D object at 0x9ef1fcc>]
>
> Approach 1:
>
> In [229]: plot(t, s, 'o', markevery=10)
> Out[229]: [<matplotlib.lines.Line2D object at 0x9eb932c>]
>
> Approach 2:
>
> In [230]: plot(t[::5], s[::5], 's')
> Out[230]: [<matplotlib.lines.Line2D object at 0x1431f30c>]
>