Customizable 2D Line Fractal

Simple fractal obtained by replacing every line of a shape with the shape itself. Sadly I cannot use the canvas for this, as it places the points to close to each other, points have to be specified in the OpenSCAD format. Some important vector operation functions are still missing in OpenSCAD, so this solution is kind of clumsy and some interesting fractals cannot be rendered, maybe this will be possible in a later version.
In mathematical terms this type of fractals are variants of the Koch curve: http://en.wikipedia.org/wiki/Koch_snowflake