Path: utzoo!utgpu!watserv1!watmath!att!occrsh!uokmax!apple!snorkelwacker!usc!samsung!crackers!m2c!umvlsi!umaecs!hgschulz
From: hgschulz@ecs.umass.edu
Newsgroups: comp.lang.postscript
Subject: Rotated fonts; super/subscripts
Message-ID: <10651.26ecad7c@ecs.umass.edu>
Date: 11 Sep 90 09:25:16 GMT
Lines: 24

2 beginner questions:
1) Is there a better way to scale an array rather than using concatmatrix?
   Plain 'mul' does not seem to work. (Note: I'm referring to a general
   array (used for font scaling), not the CTM.) 
   Specifically, my current code to
   define an operator FS that takes a rotation angle and point size and
   generates a font, runs like this:
  /FS {findfont exch /angle exch def
       exch /pt exch def
      [angle cos angle angle sin angle sin neg angle cos 0 0]
      [pt 0 0 pt 0 0] [0 0 0 0 0 0] concatmatrix
      makefont} bind def

   used as: 12 90 /Times-Roman FS
   to generate a 12-pt font rotated 90 degrees.
   This seems rather clumsy. Is there a better way?

2) What's the appropriate vertical displacement for superscripts and
   subscripts relative to the bounding box/x-height/... of the base
   character?

Thank you for any insights.

Henning Schulzrinne