Freetype bindings available

Development matplotlib-devel
1

Hi all,

I’ve bound (part of) the high-level API of freetype using ctypes.

I don’t know if it might be useful for matplotib text rendering but just in case:

http://code.google.com/p/freetype-py/

Nicolas

2

Thanks for doing this! There was certainly nothing like this last
time I looked.

I'll look further into whether this is a useful replacement for the

domain-specific freetype wrappers in matplotlib now…

Cheers,
Mike
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3

I’ve made a basic first crack at this.

Thanks to your examples, it was really easy to get basic text

rendering with matplotlib’s Agg backend (the other backends will
need to be updated accordingly, and they may be more involved since
they actually need to extract curves). I’ve made an SVN branch for
this here: (I know, I know, git would make this easier, but afaik
we’re not quite there yet…)

This doesn't use the Agg tricks rendering (finer grained hinting in

the horizontal direction etc.) so it’s a little lower quality than
matplotlib trunk right now. However, your agg-tricks.py example
certainly shows the way forward to making that work. I’ve tried to
localise all of the higher-level stuff in freetype_util.py (in
matplotlib) to make this easier. It may also make sense to put this
kind of higher-level (but extremely common) functionality in
freetype-py itself.
The next stumbling block to removing the existing wrapper is the
FT_Get_Sfnt_Name API which doesn’t seem to be in your ctypes
wrappers. This is used to extract metadata about the fonts and
build the font cache table etc. Hopefully it’s simple to add this?
Mike

···

https://matplotlib.svn.sf.net/svnroot/matplotlib/branches/ctypes_freetype

Hi all,

    I've bound (part of) the high-level API of freetype using

ctypes.

    I don't know if it might be useful for matplotib text

rendering but just in case:

http://code.google.com/p/freetype-py/

Nicolas

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4

I've added this to the list of branches to be converted to the git repo.

···

On Tue, Feb 1, 2011 at 2:36 PM, Michael Droettboom <mdroe@...31...> wrote:

I've made a basic first crack at this.

Thanks to your examples, it was really easy to get basic text rendering with
matplotlib's Agg backend (the other backends will need to be updated
accordingly, and they may be more involved since they actually need to
extract curves). I've made an SVN branch for this here: (I know, I know,
git would make this easier, but afaik we're not quite there yet...)

https://matplotlib.svn.sf.net/svnroot/matplotlib/branches/ctypes_freetype

5

I’m currently trying to add all remaining high level api into freetype-py so FT_Get_Sfnt_Name should be in a few hours hopefully.

If I forgot to add other useful functions, just tell me.

The agg-trick.py is very similar from what I found in ft2font in matploltib: setting a resolution at (10*dpi, dpi) and a transform matri =(.1,0,0,1).

One output is available on: http://www.loria.fr/~rougier/coding/freetype/agg-trick.png

(This is with subpixel antialias)

I will also integrate the ft_utils within freetype-py.

Nicolas

···

https://matplotlib.svn.sf.net/svnroot/matplotlib/branches/ctypes_freetype

Hi all,

    I've bound (part of) the high-level API of freetype using

ctypes.

    I don't know if it might be useful for matplotib text

rendering but just in case:

http://code.google.com/p/freetype-py/

Nicolas

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Finally, a world-class log management solution at an even better price-free!
Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! _______________________________________________
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