values relative to \textwidth etc.

values relative to \textwidth etc.

[Matthew Huggett]

Hi:

Is it possible to specify a value relative to a variable like \textwidth 
or \pageheight etc.  For example, is there a way to get 1/3 of \textwidth?

thanks

Matthew

RE: values relative to \textwidth etc.

[Martin Kolarík]

> Is it possible to specify a value relative to a variable like \textwidth
> or \pageheight etc.  For example, is there a way to get 1/3 of \textwidth?

You always can use TeX's multiplying of dimension with constant like:

\setuplayout
  [leftmargin=0.33333\textwidth]

or for sophisticated expressions you can use ConTeXt's \dimexpr:

\setuplayout
  [leftmargin=\dimexpr(0.33333\textwidth+3cm+\topspace)]

Martin

Re: values relative to \textwidth etc.

[Patrick Gundlach]

Martin Kolarík <martin@mii.cz> writes:

Hello Martin,

> or for sophisticated expressions you can use ConTeXt's \dimexpr:

\dimexpr (and some other) are etex not ConTeXt primitives. Not trying
to be smart or so, just for those who might use eLaTeX or pdftex
wihout e.

Patrick

Re: values relative to \textwidth etc.

[Willi Egger]

> Is it possible to specify a value relative to a variable like \textwidth
> or \pageheight etc.  For example, is there a way to get 1/3 of \textwidth?

You can use any decimal value of e.g. \texwidth. I use to tune tables with
values like .125\textwidh or .33\textwidth

Willi

Re: values relative to \textwidth etc.

[Patrick Gundlach]

Matthew Huggett <mhuggett@zam.att.ne.jp> writes:

Hello Matthew,

> Is it possible to specify a value relative to a variable like
> \textwidth or \pageheight etc.  For example, is there a way to get 1/3
> of \textwidth?

Besides the answer from Willi, I'd like to add that in the specific
case of layout tuning you might be careful with the naming. For
example when you want to use the "height" parameter that is given
with the \setuplayout macro, you have to refer to \makeupheight. To
see what I mean, use the \showsetups command. It gives you the
\setuplayout parameter and the connected name.

Patrick