[texhax] \magstep reduces text area

David Carlisle d.p.carlisle at gmail.com
Tue Jul 19 23:33:31 CEST 2016

On 19 July 2016 at 20:52, Rodolfo Medina <rodolfo.medina at gmail.com> wrote:
> David Carlisle <d.p.carlisle at gmail.com> writes:
>> plain tex sets hsize and vsize in "true in" units so they are not
>> affected by magnification, so if you magnify you have larger fonts
>> with the same physical area which appears expressed as same size
>> fonts, in a smaller physical area due to the way \mag works.
>> David
>> On 19 July 2016 at 20:03, Rodolfo Medina <rodolfo.medina at gmail.com> wrote:
>>> I noticed that the use of \magstep, e.g.: \magnification=\magstep1 reduces
>>> considerably the text area.  Why?
> So you say that it would be only an eye effect?  But I'm sure the text area is
> really reduced, right margin is much larger...
> Thanks,
> Rodolfo

no I mean the measured size within tex will be less, but when scaled
back up it will be the same

plain does

\def\magnification{\afterassignment\m at g\count@}
\def\m at g{\mag\count@

so hsize is 6.5in _after_ magnification is applied.






> 469.75499pt.
l.1 \showthe\hsize

> 391.46176pt.
l.5 \showthe\hsize

so hsize appears reduced but it will scale back to 6.5in.


More information about the texhax mailing list