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<title>Ipe Manual -- 11 Using Ipe figures in Latex</title>
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<td bgcolor="#99ccff"><a href="manual_48.html"><img border="0" alt="12 Command line options and environment variables" src="next.png"></a></td><td bgcolor="#99ccff"><a href="manual.html"><img border="0" alt="Top" src="up.png"></a></td><td bgcolor="#99ccff"><a href="manual_ipe6_to_ipe7.html"><img border="0" alt="10 If you have used Ipe 6 before" src="previous.png"></a></td><td align="center" bgcolor="#99ccff" width="100%"><b>11 Using Ipe figures in Latex</b></td></tr></table>
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<h1>11 Using Ipe figures in Latex</h1>
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<p>Most Latex installations support the inclusion of figures in
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Encapsulated Postscript (EPS) format (the "Encapsulated" means that
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there is only a single Postscript page and that it contains a bounding
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<p>The standard way of including EPS figures is using the <code>graphicx</code>
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package. If you are not familiar with it, here is a quick overview.
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In the preamble of your document, add the declaration:
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One useful attribute to this declaration is <code>draft</code>, which stops
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LaTeX from actually including the figures--instead, a rectangle
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with the figure filename is shown:
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\usepackage[draft]{graphicx}
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<p>To include the figure "figure1.eps", you use the command:
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\includegraphics{figs/figure1}
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Note that it is common <em>not</em> to specify the file extension
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".eps". The command <code>\includegraphics</code> has various options to
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scale and rotate the figure. For instance, to scale the same figure
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\includegraphics[scale=0.5]{figs/figure1}
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To scale such that the width of the figure becomes 5 cm:
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\includegraphics[width=5cm]{figs/figure1}
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Instead, one can specify the required height with <code>height</code>.
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<p>Here is an example that scales a figure to 200% and rotates it by
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45 degrees counter-clockwise. Note that the scale argument should be
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given <em>before</em> the <code>angle</code> argument.
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\includegraphics[scale=2,angle=45]{figs/figure1}
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<p>Let's stress once again that these commands are the standard commands
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for including EPS files in a LaTeX document. Ipe files neither
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require nor support any special treatment. If you are used to other
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commands for EPS inclusion, such as the old-fashioned <code>epsfig</code>
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package,<sup><a href="manual_54.html#id4">4</a></sup> you can use them as well for Ipe figures. If
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you want to know more about the LaTeX packages for including
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graphics and producing colour, check the <code>grfguide.tex</code> document
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that is probably somewhere in your TeX installation.
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<p>If you are a user of Pdflatex (a version of Latex that produces PDF
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instead of DVI output), you cannot include EPS files. Instead, save
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your Ipe figures in PDF format, and include them in the way described
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<p>There is a slight complication here: Each page of a PDF document can
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carry several "bounding boxes", such as the <em>MediaBox</em> (which
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indicates the paper size), the <em>CropBox</em> (which indicates how the
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paper will by cut), or the <em>ArtBox</em> (which indicates the extent
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of the actual contents of the page). Ipe automatically saves, for
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each page, the paper size in the <em>MediaBox</em>, and a bounding box
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for the drawing in the <em>ArtBox</em>. Ipe also puts the bounding box
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in the <em>CropBox</em> unless this has been turned off by the stylesheet.
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<p>Now, when including a PDF figure, Pdflatex will (by default) first
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look at the CropBox, and, if that is not set, fall back on the
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MediaBox. It does not inspect the ArtBox, and so it is important that
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you use the correct stylesheet for the kind of figure you are
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making--with cropping for figures to be included, without cropping
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for presentations (as otherwise Acrobat Reader will not display full
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pages--Acrobat Reader actually crops each page to the CropBox).
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<p>If you have a recent version of Pdflatex (1.40 or higher), you can
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actually ask Pdflatex to inspect the ArtBox by saying
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<code>\pdfpagebox5</code> in your Latex file's preamble.
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<p>You can save all your figures in both EPS and PDF format, so that you
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can run both Latex and Pdflatex on your document--when including
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figures, Latex will look for the EPS variant, while Pdflatex will look
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for the PDF variant. (Here it comes in handy that you didn't specify
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the file extension in the <code>\includegraphics</code> command.)
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<p>It would be cumbersome to have to save an Ipe figure in both formats
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each time you modify it. What you should do instead, is to always
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save in one format--let's say EPS. You can then write a shell script
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or batch file that calls <a href="manual_48.html">ipetoipe</a> to
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do the conversion to PDF. Alternatively, you can enable
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auto-exporting from EPS to PDF in Ipe.
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<p>On the other hand, if you <em>only</em> use Pdflatex, you might opt to
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exploit a feature of Pdflatex: You can keep all the figures for a
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document in a single, multi-page Ipe document, with one figure per
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page. You can then include the figures one by one into your document
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by using the <code>page</code> argument of <code>\includegraphics</code>.
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<p>For example, to include page 3 from the PDF file "figures.pdf"
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containing several figures, you could use
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\includegraphics[page=3]{figures}
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<td bgcolor="#99ccff"><a href="manual_48.html"><img border="0" alt="12 Command line options and environment variables" src="next.png"></a></td><td bgcolor="#99ccff"><a href="manual.html"><img border="0" alt="Top" src="up.png"></a></td><td bgcolor="#99ccff"><a href="manual_ipe6_to_ipe7.html"><img border="0" alt="10 If you have used Ipe 6 before" src="previous.png"></a></td><td align="center" bgcolor="#99ccff" width="100%"><b>11 Using Ipe figures in Latex</b></td></tr></table></body></html>
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