bug in fontinst 1.801: duplicated kernings (was: ae fonts Q)

Vladimir Volovich vvv@vvv.vsu.ru
28 Sep 1998 20:53:50 +0400


Hi,

Thanks for clarifications to Lars Hellström and Alan Jeffrey. I would
be very interested in `fixing' this problem in fontinst 1.8 (with
Lars' changes which he describes in his letter). Please. :-)

And while we are at this topic, some more bug. :-)
This time it can be called something like "rounding problems?".

While looking into vpl files for ae fonts, i mentioned that some of
them contain rather strange (unneeded) font references. E.g., the
aer17.vpl contains the following stuff:

---------------------------------------------
(MAPFONT D 0 (FONTNAME cmr17) (FONTDSIZE R 17.28) (FONTAT R 17.2799))
(MAPFONT D 1 (FONTNAME cmr17) (FONTDSIZE R 17.28) (FONTAT R 17.28))
(MAPFONT D 2 (FONTNAME cmmi12) (FONTDSIZE R 12.0) (FONTAT R 13.82385))
(MAPFONT D 3 (FONTNAME cmmi12) (FONTDSIZE R 12.0) (FONTAT R 17.28))
(MAPFONT D 4 (FONTNAME cmsy10) (FONTDSIZE R 10.0) (FONTAT R 17.28))
(MAPFONT D 5 (FONTNAME cmu10) (FONTDSIZE R 10.0) (FONTAT R 17.28))
---------------------------------------------

Note, that fonts number 0 and number 1 are *almost* the same, but
differ by 0.0001 of `at size'. What is the reason of this? Obviously,
this is a "bug", and the vpl file is overloaded with one unneeded (and
incorrect) reference. The size and processing speed of the virtual
font without this unneeded reference will improve. Is it possible to
solve this problem as well? :-)

Thanks!

	Best regards, -- Vladimir.