Tom — Seeking to test the results of your project to convert the AMS/CM
fonts in Type 1 format to OpenType/CFF using Adobe's AFDKO, I downloaded
the contents of your Github repository
(https://github.com/tkacvins/CM_OTF/archive/refs/heads/master.zip),
expanded the contents thereof and installed (under Windows) just
"cmr10.otf". I then asked XeTeX to process the following :
% !TeX Program=XeTeX
\font \cmr = "cmr10"
\cmr
The quick brown fox jumps right over the laxy dog's back.
\end
The TeXworks PDF previewer indicated that the resulting text scaled
perfectly, so clearly the OTF file was being used (or so I thought). I
then amended the code to read :
% !TeX Program=XeTeX
\font \cmr = "cmr9"
\cmr
The quick brown fox jumps right over the laxy dog's back.
\end
and found, to my complete surprise, that the text in cmr9 also scaled
perfectly. So my question is, "where is XeTeX finding a scaleable
version of cmr9, when the only OTF file that I have installed from your
suite is cmr10 ?". "Start / Control Panel / Fonts" reveals that only
"CMR 10 Regular" (of your font set) is installed, and a search under
"C:\TeX\Live\2021" finds only :
cmr9.afm
cmr9.mf
cmr9.pfb
cmr9.pfm
cmr9.t3
cmr9.tfm
Is it possible that XeTeX is using the PFB version and ignoring the
string quotes around "cmr9" that should force it to use a system font,
and if so, must I write (/e.g.,/) \font \cmr = "[cmr10.otf]" to force
XeTeX to use /only/ your OTF versions and to report "Font not found" if
the relevant font(s) is/are not installed ? TeX Live and XeTeX lists
cc'd for comment.
--
/Philip Taylor/
The public repository is here
https://github.com/tkacvins/CM_OTF
Feel free to add to it. I can add contributors as necessary.
What is needed is testing, in particular if the fonts are OK
with the existing TFM files.
I am not quite sure how to get the TeX Live tools to use
OpenType fonts. In addition,
there are some options/input files missing from my initial
creation of the fonts that will
be addressed later as I figure them out.
Enjoy! And please feel free to open issues (as necessary) on
github and give feedback
as to whether I did anything bone headed.
Ooops, the license needs to be taken care of. The AMS license
says all derivative works
need to have the AMS license/copyright removed. I am hoping that
the AMS approves
the distribution of the OTF flavors of their fonts with their
copyright. Thoughts?
Another thing that needs to be taken care of is Unicode mappings in
the OTF.
makeotf is botching it when making the cmap table in the OTF fonts because
of the custom encodings of the amsfonts. Things are not mapping properly.
There is a way around this using an optional file for makeotf that
handles the
glyph to code mapping, but I have had some problems even with that. Still
trying to work it out with the AFDKO folks.
