Parametric Architecture with Grasshopper - PRIMER

Group made to post comments, questions and suggestions on the book "Parametric Architecture with Grasshopper" in order to create a link author-readers and improve next editions.

Eco surface

Hii . I was wondering how can I make a surface with opned and closed pattern  like a rectaunglar grid surface or hexagon by sun path .. As much could be opened more in winter to get more sun rays and  get low sun rays in summer !! Please help me