Greetings All! I'm posting this because it does not seem to be explicitly documented in groffinfo (though it may be deducible from what is in there).
Namely, it is possible to explcitly set fractional point sizes in groff, which will be so realised in PS output. Simple example (filename junk0.tr): \s[11]This is in 11-point.\s0 .br \s[9.767]This is in 9.767-point.\s0 Output (groffout) of cat junk0.tr | troff -Tps | less : x T ps x res 72000 1 1 x init C p1 x font 5 TR f5 s11000 V12000 H72000 md DFd tThis wh2750 tis wh2750 tin wh2750 t11-point. n12000 0 s9767 V24000 H72000 tThis wh2442 tis wh2442 tin wh2442 t9.767-point. n12000 0 x trailer V792000 x stop You can see that "s11000" sets the point size to 11000u, i.e. 11 points; while "s9767" sets it to 9767u (9.767 points). This duly carries through to the PS output. The relevant lines from the resulting PS file are: %%EndPageSetup /F0 11/Times-Roman@0 SF <5468697320697320696e2031312d706f696e742e>72 84 Q /F1 9.767/Times-Roman@0 SF <5468697320697320696e20392e3736372d706f696e742e>72 96 Q 0 Cg EP %%Trailer end %%EOF where "/F0 11/Times-Roman@0 SF" sets the point-size to 11 points, and "/F1 9.767/Times-Roman@0 SF" sets it to 9.767 points. That's fine for explicitly chosen fractional point-sizes. Groff (like the original troff) unfortunately does not do floating-point arithmetic, so point-size conversions like (0.707=sqrt(2) to 3dp): \s[\n[.s]*0.707] won't work! (When I need to, I use 'pic' for floating-point, making use of its "command" command to feed numerical results to troff -- but this involves re-writing the ".PS" macro so that it does not have a direct effect on the layout of the final document, i.e. acts "invisibly"). This may be of interest to some, and I would also welcome comments from anyone who has more insight into how to do this sort of thing! Best wishes to all, Ted. ------------------------------------------------- E-Mail: (Ted Harding) <ted.hard...@wlandres.net> Date: 04-Dec-2012 Time: 23:05:48 This message was sent by XFMail -------------------------------------------------
