1cadd9c47f
I need some font objects to exercise the fonts_to_quadratic function. Defcon is still not an install requirement though, as cu2qu should work with any defcon-like objects (e.g. fontParts?, robofab not so much)
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cu2qu
=====
This library provides functions which take in UFO objects (Defcon Fonts
or Robofab RFonts) and converts any cubic curves to quadratic. The most
useful function is probably ``fonts_to_quadratic``:
.. code:: python
from defcon import Font
from cu2qu.ufo import fonts_to_quadratic
thin_font = Font('MyFont-Thin.ufo')
bold_font = Font('MyFont-Bold.ufo')
fonts_to_quadratic([thin_font, bold_font])
Interpolation compatibility is guaranteed during conversion. If it's not
needed, converting one font at a time may yield more optimized results:
.. code:: python
for font in [thin_font, bold_font]:
fonts_to_quadratic([font])
Some fonts may need a different error threshold than the default (0.001
em). This can also be provided by the caller:
.. code:: python
fonts_to_quadratic([thin_font, bold_font], max_err_em=0.005)
.. code:: python
for font in [thin_font, bold_font]:
fonts_to_quadratic([font], max_err_em=0.001)
``fonts_to_quadratic`` can print a string reporting the number of curves
of each length. For example
``fonts_to_quadratic([font], dump_stats=True)`` may print something
like:
::
3: 1000
4: 2000
5: 100
meaning that the font now contains 1000 curves with three points, 2000
with four points, and 100 with five. Given multiple fonts, the function
will report the total counts across all fonts. You can also accumulate
statistics between calls by providing your own report dictionary:
.. code:: python
stats = {}
for font in [thin_font, bold_font]:
fonts_to_quadratic([font], stats=stats)
# "stats" will report combined statistics for both fonts
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