Command/setupfontexpansion

\setupfontexpansion

Summary

The command \setupfontexpansion is used to define a set of font expansion (hz) parameters

Settings

\setupfontexpansion[...][...=...,...]
[...]	name
vector	name
factor	number
stretch	number
shrink	number
step	number

Option	Explanation
name of an expansion preset
vector	set of affected characters; always "default"="quality", a combination of "alpha" and "punctuation", see font-imp-quality.lua
factor	(default = 1)
stretch	amount of stretching (default = 2)
shrink	amount of shrinking (default = 2)
step	granularity (default = 0.5)

Description

According to the manual, there are two presets, "preset" and "quality".

   name     vector  step factor stretch shrink
   preset           0.50 1.00   2       2
   quality  default 0.50 1.00   2       2

“The smaller the step, the more instances of a font we get, the better it looks, and the larger the files become. It’s best not to use too many stretch and shrink steps. A stretch of 2 and shrink of 2 and step of .25 results in up to 8 instances plus the regular sized one.”

See also

• hand-ini.mkiv
• fonts-mkiv.pdf
• font-imp-quality.lua
• \definefontfeature
• \showfontexpansion for debugging
• \noexpansion disable expansion locally

Help from ConTeXt-Mailinglist/Forum

All issues with:

• \setupfontexpansion on the mailing list (all results)
• \setupfontexpansion on the mailing list (subject only)
• \setupfontexpansion on stack exchange
• \setupfontexpansion in ConTeXt's source