Path: utzoo!attcan!uunet!aplcen!haven!mimsy!mojo!disney!josip
From: josip@ra.src.umd.edu (Josip Loncaric)
Newsgroups: comp.sys.mac.system
Subject: Bizarre problem with a large math font
Summary: large font characters do not show
Keywords: font, large characters
Message-ID: <1990Jul23.161753.13159@ra.src.umd.edu>
Date: 23 Jul 90 16:17:53 GMT
Sender: Josip Loncaric <josip@ra.src.umd.edu>
Distribution: na
Organization: Systems Research Center, University of Maryland, College Park
Lines: 25

I have a strange problem with a font of math symbols which came with Textures
v1.0 program.  The font is bitmapped, size is 50 points (prints as 12pt on
laser printers), and characters include some quite large parenthesies (for
matrices) and square root signs (see Knuth's TeXbook, pg.432, showing layout
for "cmex10" math extension font).  
Large (i.e. tall) characters ("(" at hex 0x20 for example) sometimes do not
show up on the screen or the printout.  For a given method, the problem is 
repeatable, but different ways of displaying the character sometimes succeed.
I've tried ResEdit, Textures, Word, and SampleIt!, but cannot figure out what
is going on.  For example, ResEdit will show the character (at least the visible
portion) in its enlarged window, but the character will not show up in
normal view.
Some information about FONT: type is 0xD001, defining characters from 0x0 to 
0x80, widMax is 0x4B, kernMax is -1, nDescent is 0, fRectWidth is 0x48,
fRechHeight is 0xB9, ascent is 0x26, descent is 0x93, and leading is 0x2. Could
tall characters be causing problems for the Font Manager?  Note that while
FONTs can be designed with sizes of up to 127 pts, this 50-pt font includes
characters much taller than 127pts.  Is there a fix?

Josip Loncaric
SRC/UMD
<josip@ra.src.umd.edu>

--
Josip Loncaric / SRC / U. of Maryland, College Park, MD 20745