From release notes:

Picviz is a parallel coordinates plotter which enables easy scripting from various input (tcpdump, syslog, iptables logs, apache logs, etc..) to visualize your data and discover interesting results quickly.

Picviz helps you to create, automate and understand parallel coordinates plots. Its primary goal is to graph data in order to be able to quickly analyze problems and find correlations among variables. With security analysis in mind, the program has been designed to be very flexible, able to graph millions of events.

The language is designed to be close to the graphviz graph description language.

Picviz features a language to describe your graphs; An engine producing images in parallel coordinates from this language; Python bindings to gather calculated data, raw data and a frontend written in Python and QT4.

You can download the program from its project page.