Algorithmic mesh generation and printing

[Tyakos]

Hi.

I just started printing and I have a question about modelling/programming tools.
I am looking to print something like this (see attached img).

Imagine that the lines have thickness (minimal print resolution) and are stacked on top of each other, creating a "porous brick".
I have used Matlab to generate this picture and can plot the union of surfaces, but since it is not a single surface, I can't seem to be able to export it as stl.
Modelling it using some sort of CAD software is possible, but very time-consuming and inefficient.

Can anyone suggest a better way of modelling this for 3D printing? Maybe some software that allows you to mess and define the mesh in an algorithmic/recursive manner?

surf_2d.jpg