matplotlib-devel Mailing List for matplotlib

Darren Dale <dd...@co...> writes:
> In an earlier post you mentioned that transformations of Type-1 fonts
> probably requires a complete type-1 parser. Do you mean matplotlib's
> ft2font is missing some functionality?
I don't think freetype has any support for modifying and outputting
fonts. Actually the transformations are probably just a matter of
locating and modifying the FontMatrix entry in the cleartext part of the
pfb file, but subsetting (to reduce file sizes) is more involved.
-- 
Jouni K. Seppänen
http://www.iki.fi/jks

On Sunday 30 September 2007 04:16:08 pm Jouni K. Sepp=E4nen wrote:
> It turns out (thanks to Darren for the debug info) that AFM files do not
> exist for all fonts in all current TeX distributions, so I have modified
> the pdf backend to not use them. This loses some information that is
> required by the pdf spec (such as the x-height and stem widths of the
> embedded font) but at least in some tests Preview.app and Adobe Reader
> don't seem to mind.
Jouni, I just ran tex_demo.py, which I modified to yield a pdf. The result=
s=20
are really impressive. In an earlier post you mentioned that transformation=
s=20
of Type-1 fonts probably requires a complete type-1 parser. Do you mean=20
matplotlib's ft2font is missing some functionality?
Darren

Paul Kienzle wrote:
> Technically this should be feasible --- freetype can load fonts
> from memory or directly from the zip file given the proper driver,
> and the various images should be similarly readable.
ttconv will have to be likewise updated (probably to accept a Python 
file-like object). It is currently hardcoded to only accept file paths 
and do its own reading using the C stdlib.
The Cairo backend will also be unable to use fonts this way (but that's 
only a minor change from how it is now -- Cairo can only read fonts from 
normal OS-specific font installation directories anyway.)
Personally, I'd prefer to see the fonts installed in a OS standard place 
-- then matplotlib could use fontconfig effectively on X11 systems and 
Cairo would function like all the other backends. But that probably 
means having a proper installer on Windows/Mac and being a little more 
clever with packaging on Linux.
As for images, you could take the approach suggested by wxPython's img2py:
 http://www.wxpython.org/docs/api/wx.tools.img2py-module.html
There is nothing wx-specific about the concepts there... But I'm not 
sure it's necessary if all of the backends can load images from strings 
anyway.
Cheers,
Mike
-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

As I was building a py2exe distribution of matplotlib, I noticed the
function get_py2exe_datafiles() in __init__.py that is not noted on
the FAQ. Before I update the FAQ, can you all tell me your best
practices recommendations for wrapping matplotlib?
In particular, is there a way I can store the matplotlib data directly
in the exe so that install is simply a matter of copying an exe file
rather than a whole directory?
Technically this should be feasible --- freetype can load fonts
from memory or directly from the zip file given the proper driver,
and the various images should be similarly readable.
	- Paul