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authorPhilipp Gesang <phg@phi-gamma.net>2017-02-04 13:35:56 +0100
committerPhilipp Gesang <phg@phi-gamma.net>2017-02-04 13:35:56 +0100
commit0842c371132e76fbe67c357b61207e6d5730f553 (patch)
treeefffc2c64162a288aa787734772fc9399be46dca /doc
parent19c26e507f2780ffc428636f7eea817415c18101 (diff)
downloadluaotfload-2.8-fix-1.tar.gz
[doc] clarify design size handlingv2.8-fix-1
Diffstat (limited to 'doc')
-rw-r--r--doc/luaotfload.conf.rst7
1 files changed, 5 insertions, 2 deletions
diff --git a/doc/luaotfload.conf.rst b/doc/luaotfload.conf.rst
index fbef8ec..63472cf 100644
--- a/doc/luaotfload.conf.rst
+++ b/doc/luaotfload.conf.rst
@@ -153,8 +153,11 @@ and has no effect on the runtime behavior of Luaotfload, the flag
should remain set. Most editors come with zlib support anyways.
The setting ``designsize-dimen`` applies when looking up fonts from
-families with design sizes. The default of DTP-style “big points”
-can be changed for ``pt`` or even ``dd``.
+families with design sizes. In Opentype, these are specified as
+“decipoints” where one decipoint equals ten DTP style “big points”.
+When indexing fonts these values are converted to ``sp``. In order to
+treat the values as though they were specified in TeX points or Didot
+points, set ``designsize-dimen`` to ``pt`` or ``dd``.
The list of ``formats`` must be a comma separated sequence of strings
containing one or more of these elements: