[texhax] font metrics

Chris Rowley C.A.Rowley at open.ac.uk
Fri Jun 6 18:29:03 CEST 2003


> >     I would like to discuss about the slant parameter in the Tex font metric
> >     file. As far as i have come to know is that it is equal to the tangent of
> >     the angle in degrees from the vertical in the counter-clockwise direction.
> > 
> > It is?  That is not exactly clear to me either.  tftopl.web (et al.) says:
> > 
> >   param[1]=@!slant| is the amount of italic slant, which is used
> >   to help position accents. For example, |slant=.25| means that when you go
> >   up one unit, you also go .25 units to the right. The |slant| is a pure
> >   number; it's the only |fix_word| other than the design size itself that is
> >   not scaled by the design size.
> I think that, mathematically speaking, these are the almost same thing
> (modulo the "counter" in "counter-clockwise", which I think is an error).

I don't know about `speaking' but they are the same thing, with
`clockwise' in (and you can remove `in degrees': angles, like their
tangents, are also pure numbers so it does not mattter what you
measure them in).


PS: all this agreeing with you will have to stop!

More information about the texhax mailing list