Thanks, Wolfgang. Just changed my source and checked. Now columns come out 
correctly when using \textwidth as a size parameter. As always I assume this 
correction will go into the next beta.

Hans van der Meer



On 24 feb. 2013, at 23:04, Wolfgang Schuster 
<wolfgang.schus...@gmail.com<mailto:wolfgang.schus...@gmail.com>> wrote:


Am 24.02.2013 um 16:36 schrieb "Meer, H. van der" 
<h.vanderm...@uva.nl<mailto:h.vanderm...@uva.nl>>:

The contextrefmanual tells me in table 3.2 the following on the behaviour of 
the variables denoting the width of texts:

<Untitled.jpg>

But the claim that \textwidth gives the width of a column is false. See the 
following minimal example, the first picture is set with 0.45\makeupwidth, the 
second with 0.9\textwidth.
It is clear that \textwidth does not follow the claim.


There is a local setting for the text width missing in the mliv version of the 
code.

% page-mul.mkiv

\unexpanded\def\page_mul_command_set_hsize % beware, this one is available for 
use in macros
 {\setbox\scratchbox\hbox{\page_mul_between_columns}%
  \d_page_mul_distance\wd\scratchbox
  \d_page_mul_available_width\dimexpr
     \makeupwidth
    -\d_page_mul_leftskip
    -\d_page_mul_rightskip
    -\nofcolumns\d_page_mul_distance
    +\d_page_mul_distance
  \relax
  \d_page_mul_used_width\dimexpr
     \d_page_mul_available_width/\nofcolumns
    -\d_page_mul_offset*\plustwo
  \relax
+  \textwidth\d_page_mul_used_width
  \hsize\d_page_mul_used_width}

% page-mix.mkiv

\unexpanded\def\page_mix_command_set_hsize
- {\hsize\d_page_mix_column_width}
+ {\textwidth\d_page_mix_column_width
+  \hsize\d_page_mix_column_width}

Wolfgang
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