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\documentclass{scrartcl} \usepackage{calc} \usepackage{showframe} \begin{document} \setlength\parindent{0pt} \newsavebox\maintitleBox \newlength\maintitleHeight \newcommand{\maintitle}[1]{% \clearpage% \savebox\maintitleBox{% \parbox{\textwidth}{% #1 \rule{\textwidth}{1mm}\par% }% }% \setlength\maintitleHeight{\ht\maintitleBox + \dp\maintitleBox}% \vspace*{-\maintitleHeight}\usebox\maintitleBox }% \maintitle{Test} \end{document}

The maintitle is supposed to go above the text area on some pages. What I am trying to do is to save the height of the box and move the box up by exactly the height of the box.

However, I can't get it to work. What am I missing?

Edit: Would I have been more committed to testing, I would have seen that \maintitleHeight is only the height of the text; not of the rule below. Now the question is: why is that and how can I fix this?

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    You should always post a complete (but minimal) document that reproduces the problem, not a fragment that no one can run, but \ht\maintitleBox + \dp\maintitleBox is a syntax error unless you have loaded the calc package (it would be clear what packages were in use in a complete document) Commented Mar 14, 2016 at 9:38
  • I am sorry, I was in a hurry. Added an MWE. Commented Mar 14, 2016 at 15:47
  • Do you just want to move content into the header? For that you can use a header package like fancyhdr (while you're using a KOMA-script class, you're not using any of its functionality, so I doubt it's really in-use). Commented Mar 14, 2016 at 17:00

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If your aim is to make the heavy rule sitting at the top of the text area, no measuring is needed:

\documentclass{scrartcl} \usepackage{showframe} \newcommand{\maintitle}[1]{% \clearpage \vspace*{-\dimexpr\topskip+\baselineskip} \noindent \parbox[b][0pt]{\textwidth}{% #1\par \rule{\textwidth}{1mm}\par \vspace{0pt} }% } \begin{document} \maintitle{Test} Some text follows \end{document}

enter image description here

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  • +1 but as you can see the vertical position of "Some text follows" is shifted. Something like \vspace{\dimexpr-\baselineskip+\topskip}% below the \parbox is needed. Commented Mar 15, 2016 at 8:31
  • @jfbu I don't think this should be much of a concern: I hope some vertical space follows the title anyway. Commented Mar 15, 2016 at 8:33
  • It the rule was positioned a bit higher, maintaining same vertical position for main text could become more attractive. Particularly if the top rule is only for certain pages. Commented Mar 15, 2016 at 17:12
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It isn't really clear what you want to do, \parbox is vertically centred by default and your box has

> \box29= \hbox(13.27873+7.80376)x418.25555 .\pdfcolorstack 0 push {0 g 0 G} .\mathon .\vbox(13.27873+7.80376)x418.25555 ..\hbox(7.48248+0.0)x418.25555, glue set 397.81555fil [] ..\glue(\parskip) 0.0 ..\glue(\baselineskip) 10.75475 ..\hbox(2.84526+0.0)x418.25555 [] .\mathoff .\pdfcolorstack 0 pop

so it has one line of text and then the rule, although only 1mm high adds another 12pt being \baselineskip to the overall height+depth of the box.

At the top of the page you have

...\glue(\topskip) 11.0

% setting for the first baseline in this class

...\rule(0.0+0.0)x* ...\penalty 10000 ...\glue -21.08249

% the negative space you added

...\glue 0.0 ...\glue(\parskip) 0.0 plus 1.0

% parskip before the \usebox (which might stretch)

...\glue(\baselineskip) 0.32127

% baselineskip to make up 13.6pt together with the height of your box.

...\hbox(13.27873+7.80376)x418.25555

% the \usebox

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  • "\parbox is vertically centred by default" Thanks, this was part of the problem. I remembered incorrectly default would be [t]. How did you get the output you posted? Commented Mar 16, 2016 at 7:44
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    @chaosflaws \showoutput for the page layout and \showbox for the specific box. Commented Mar 16, 2016 at 14:38

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