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(dvips.info)Literal examples

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Literal examples
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  To finish off this section, the following examples of literal
PostScript are presented without explanation:

     \def\rotninety{\special{ps:currentpoint currentpoint translate 90
     rotate neg exch neg exch translate}}\font\huge=cmbx10 at 14.4truept
     \setbox0=\hbox to0pt{\huge A\hss}\vskip16truept\centerline{\copy0
     \special{ps:gsave}\rotninety\copy0\rotninety\copy0\rotninety
     \box0\special{ps:grestore}}\vskip16truept

  [ There are 4 `A' characters, each rotated 90 degrees about a
common center point ]

     \vbox to 2truein{\special{ps:gsave 0.3 setgray}\hrule height 2in
     width\hsize\vskip-2in\special{ps:grestore}\font\big=cminch\big
     \vss\special{ps:gsave 1 setgray}\vbox to 0pt{\vskip2pt
     \line{\hss\hskip4pt NEAT\hss}\vss}\special{ps:0 setgray}%
     \hbox{\raise2pt\line{\hss NEAT\hss}\special{ps:grestore}}\vss}

  [ There is a big gray box with the word `NEAT' inside in big letters ]

  Some caveats are in order, however. Make sure that each `gsave' is
matched with a `grestore' on the same page.  Do not use `save' and
`restore'; they can interact with the PostScript generated by Dvips if
care is not taken.  Try to understand what the above macros are doing
before writing your own.  The `\rotninety' macro especially has a
useful trick that appears again and again.