[groff] 02/03: [docs]: Further clarify "unit width" concept.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit b35a138c8679b2f5533e6f2da7d2ff9ea7362a84
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Mon Sep 27 20:03:58 2021 +1000

    [docs]: Further clarify "unit width" concept.
    
    I'd really love to just rename this to "design size".
---
 doc/groff.texi       | 6 +++---
 man/groff_font.5.man | 7 ++++---
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/doc/groff.texi b/doc/groff.texi
index 269f840..4f46382 100644
--- a/doc/groff.texi
+++ b/doc/groff.texi
@@ -18063,9 +18063,9 @@ multiple sizes.  While paper size measurements in the 
device description
 file are in absolute units, measurements applicable to fonts must be
 proportional to the type size.  @code{groff} achieves this using the
 precedent set by @acronym{AT&T} device-independent @code{troff}: one
-size of a font is chosen as a norm, and all other sizes are scaled
-linearly relative to that basis.  The ``unit width'' is the number of
-basic units per point.
+font size is chosen as a norm, and all others are scaled linearly
+relative to that basis.  The ``unit width'' is the number of basic units
+per point when the font is rendered at this nominal size.
 
 For instance, @code{groff}'s @code{lbp} device uses a @code{unitwidth}
 of@tie{}800.  In its Times roman font @samp{TR}, its @code{spacewidth}
diff --git a/man/groff_font.5.man b/man/groff_font.5.man
index 2e29b48..39847a2 100644
--- a/man/groff_font.5.man
+++ b/man/groff_font.5.man
@@ -512,10 +512,11 @@ measurements applicable to fonts must be proportional to 
the type size.
 .I groff
 achieves this using the precedent set by AT&T device-independent
 .IR troff : \" AT&T
-one size of a font is chosen as a norm,
-and all other sizes are scaled linearly relative to that basis.
+one font size is chosen as a norm,
+and all others are scaled linearly relative to that basis.
 .
-The \[lq]unit width\[rq] is the number of basic units per point.
+The \[lq]unit width\[rq] is the number of basic units per point when the
+font is rendered at this nominal size.
 .
 .
 .P