[texhax] font metrics

[Jimmy verma]

some of the font formats they give ` the angle in counter clockwise degrees 
from the vertical'.  Should it be considered as the same thing as our slant 
parameter in tex.


>From: Chris Rowley <C.A.Rowley at open.ac.uk>
>To: texhax at tug.org
>Subject: Re: [texhax] font metrics
>Date: Fri, 6 Jun 2003 17:29:03 +0100
>
>Phil
>
> > >     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).
>
>
>chris
>
>PS: all this agreeing with you will have to stop!
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