Help using Kangaroo plugin

Hi!

My task is to create some sort of pavilion using Kangaroo and a optimization tool of some sort. 

My plan was to use Kangaroo to recreate the attached file, but i cannot seem to figure out how to get the right shape.

I was planning to do some Topology optimization using TopOpt afterwards, but other suggestions is welcome as well!

This is the first time using Kangaroo, so if some of you can suggest a more interesting pavilion to model using Kangaroo then I would be happy as well. This might be too simple in the end :/

Thank you in advance!