Hello, thanks for explanation. I also wrote a sample code which should typeset a midaligned table via Lua using "tabulate". But I'm not able to achieve the goal - what am I doing wrong? ---- \starttext T \startluacode local f = function() context.starttabulate{"|rw(2cm)|rw(2cm)|"} context.NC() context("A") context.NC() context("B") context.NC() context.NR() context.stoptabulate() end f() context("U\\par") context.startalignment{"middle"} context("V") -- OK, "V" is successfully midaligned context.stopalignment() context.startalignment{"middle"} f() -- Wrong, table is not midaligned context.stopalignment() context.startalignment{"middle"} context.dontleavehmode() f() -- Wrong, too, table is still not midaligned (?!) context.stopalignment() -- context.midaligned(f) -- This breaks Ctx! \stopluacode \stoptext ---- Best regards, Lukas On Wed, 26 Jun 2013 14:46:32 +0200, Wolfgang Schuster wrote:

Am 26.06.2013 um 14:07 schrieb Procházka Lukáš Ing. - Pontex s. r. o. :

...

Hello,

there are several similar commands to produce text (or another object) to be centered on the line.

What are differences (or intended usage) among \centerline, \midaligned, \startalignment[middle]?

(NB: \centerline has no its-own page on wiki, but it is used at several places in wiki samples.

\centerline was also mentioned here in the mailing list, when I was trying to center "tabulate" - and neither \midaligned nor \startalignment[middle] combined with \dontleavehmode worked.)

The three commands

- \leftline, - \rightline and - \centerline

are copied from plain TeX and allow you to center short text which fits on a single line but it isn’t recommended to use them because ConTeXt has it’s own alternative for them. The replacement commands are

- \leftaligned, - \rightaligned and - \midaligned.

Even though each command is only meant for short text you use the \\ command to put text into several lines, e.g.

\starttext \midaligned{One\\Two\\Three} \stoptext

creates three lines for the input. In recent installations you can write

\startlinealignment[left|middle|right] … \stopalignment

as a alternative to \leftaligned etc.

With the alignment environment you can change the alignment of the text for a certain region. Unlike the line alignment environment you can use text which covers more than a single line.

\starttext \input knuth\par \startalignment[middle] \input knuth\par \stopalignment \stoptext

Wolfgang

-- Ing. Lukáš Procházka [mailto:LPr@pontex.cz] Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz] Bezová 1658 147 14 Praha 4 Tel: +420 244 062 238 Fax: +420 244 461 038

Hello, On Wed, 26 Jun 2013 15:10:43 +0200, Wolfgang Schuster wrote:

Use the solution in the following mail which deals with the same problem: http://www.ntg.nl/pipermail/ntg-context/2013/073795.html

Wolfgang

the following code seems to work: ---- ... context.startplacetable({location = "here,force,none"}) f() context.stopplacetable() ... ---- I guess: - "here" and "force" to make the content inside start/stop-placetable non-floating, - "none" to disable caption. Thanks again. Best regards, Lukas -- Ing. Lukáš Procházka [mailto:LPr@pontex.cz] Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz] Bezová 1658 147 14 Praha 4 Tel: +420 244 062 238 Fax: +420 244 461 038