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1 --- vladimir@worklogic.com: this below isn't implemented yet! ---
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2 --- Talk to me if you're interested in it and want to help ---
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3 Latex/Psfrag Attributes+
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4 Only work in -Tps and if latex2e and psfrag.sty ver.3 are installed.
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5 The resulting ps file will print latex commands unless you include it in a
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6 tex file that does \usepackage[scanall]{psfrag}, or run it through the
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7 supplied script "psfrag" (which wraps it in such a tex file).
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8
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9 psfrag: string [GNE]. This text is passed through latex.
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10 Example: node: a1 [psfrag="$\alpha_1$"]
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11 edge: x->y [label="x -> y" psfrag="$x \rightarrow y$"]
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12 The name/label is used only as a guide for positioning, but you better
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13 specify them. E.g. if the edge had no label attribute, dot would have to
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14 assume that the label is 17 characters wide.
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15 The line breaks \l,\n,\r are *not* processed in the psfrag attribute.
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16 If you want line breaks, arrange it with latex commands, and *also* specify
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17 a label that emulates the breaks.
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18 tailpsfrag/headpsfrag: string [E]. Same for tail/head of the edge.
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19 fontname: [GNE] Use any of the commands described in latex2e's fntguide.
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20 If the command sequence contains %s, the text is inserted there. Else the
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21 text is preceded by the command, all surrounded by braces. For example, if
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22 the text is "..." then \texttt{%s} becomes \texttt{...}, and \ttfamily
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23 becomes {\ttfamily ...}.
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24 If fontname matches "tt" then dot will use fixed font width for its
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25 positioning (is 0.65 right??). If fontname matches "bf" then dot will
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26 multiply the width for positioning purposes by ?? (for all families??).
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27 You cannot change the font by simply giving a different font name.
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28 E.g. to switch to Courier, you either have to use \texttt{%s} with a style
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29 that uses Postscript fonts, or else use \fontfamily{pcr}\selectfont ("pcr"
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30 stands for postscript courier). As a precaution, dot won't output a fontname
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31 that does not contain \.
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32 Often used commands are \rmfamily (roman), \sffamily (sans serif),
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33 \ttfamily (typewriter), \mdseries (medium, i.e. normal), \bfseries (bold),
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34 \upshape (upright, i.e. normal), \itshape (italic), \slshape (slanted),
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35 \scshape (small caps); or their equivalents \textrm{%s}, ...; \boldmath;
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36 \mathcal{%s}.
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37 fontsize: "n\cmd". [GNE] Dot assumes for positioning purposes that the font is
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38 n points high, and emits the font changing command \cmd to latex. Both n and
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39 \cmd are optional.
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40 If \cmd is missing then you are informing dot that the latex fontsize is n.
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41 *Please* do this at the top level. The default 14 is probably wrong for you.
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42 The correct setting for a 10pt article style is "digraph G {fontsize=10 ...}"
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43 If you use "n!", dot will force this size to latex by emitting commands
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44 \fontsize\selectfont. This is not smart unless you use scalable fonts, eg
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45 postscript fonts.
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46 If n is missing and \cmd is one of the standard commands \tiny,
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47 \scriptsize, \footnotesize, \normalsize, \large, \Large, \LARGE, \huge or
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48 \HUGE, dot will compute the new size automatically. Otherwise you have to
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49 specify both.
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50 If the command contains %s, the text will be inserted there, else the
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51 text is preceded by the command, all surrounded by braces.
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