Parcel

Parcel is a two-dimensional graphical processing language designed to simplify the task of producing meaningful representations of data models and simulations for statistical, scientific, and artistic applications. The fundamental object in Parcel is the cel. A cel is defined proportionally to other cels; it can be anything from a pixel to the whole screen depending on context. Furthermore, cels can be nested and tiled within each other. This fundamental data structure allows for unique highlevel, abstract drawing and animation, independent of the underlying graphical implementation.

Here are some sample images:


and documentation:
Reference Manual