louvres on a differentiated surface

Hi all!

I´m working on  how to generate louvres on a differentiated surface to put more where they are more needed and less where they are less/not needed to generate some sort of a mesh structure.

To do that, I'm operatin on the base surface as to dubdivide progressivelly where there's a sharper angle to the sun's defined one, using a classic sun path calculator, to latter find the centres of those subdivisions and trace interpolated lines through them which will be projected to the surface and used as basis to build the louvres sweeps.... sounds so good...

The problem is that I'm getting just to the subdivisions and haven't found a way to sort them out and generate the lines through.

Any suggestion?