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### 6.2 TeX

The `eukleides` package that comes with the Eukleides distribution provides a convenient way to include geometric figures in LaTeX documents.

Eukleides figures must be enclosed in `eukleides` environments. When first running `latex` or `pdflatex`, the enclosed codes are saved to individual files, named after the TeX source. For instance, mydoc.tex would yield mydoc-fig1.pst, mydoc-fig2.pst, etc.

When using `latex`, the figure files should then be transformed in TeX files with the `euktotex` script (which takes the TeX source name as argument), and `latex` run again. It should be noted that the PSTricks package is automatically loaded if necessary.

When using `pdflatex`, due to incompatibilities with PSTricks, the figure files should be transformed in PDF pictures with the `euktopdf` script (which likewise takes the TeX source name as argument), and `pdflatex` run again. If specific packages are required to typeset the figures, the corresponding `\usepackage` directives have to be enclosed in a `packages` environment in the preamble. This has no effect when using `latex`.