An example of using PDF::Writer along with
Gruff to create PDF graphs is presented in Chapter 10.
Installing Hpricot and LaTeX
For this example, you??™ll need both Hpricot and a LaTeX distribution installed. The LaTeX
distribution you use depends on your operating system:
Windows: You can obtain MiKTeX, a TeX/LaTeX distribution for Windows, from
http://miktex.org.
Mac OS X: You can obtain a TeX/LaTeX distribution for OS X at http://tug.org/
mactex/. If you have a preferred ports manager for OS X, such as Fink or MacPorts,
you can probably install LaTeX using that as well.
Linux: If you??™re running Linux, LaTeX may already be installed. If not, you should be
able to install it easily using your system??™s package manager.
??? The command for Debian Linux and related distributions (Ubuntu, for
example) is apt-get install texlive.
??? For Red Hat??“based distributions, you should be able to use the command sudo
yum install tetex-latex.
You??™ll also need to install Hpricot. You can install it using the following command:
gem install hpricot
You??™ll find that Hpricot is very easy to use.
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