Applying boundary conditions to Galapagos optimization

Hi all,

I am trying to optimize a geometry with some restraints, while staying within certain boundaries. Specifically, I want an arch to rotate and scale to reach an optimal geometry, while not allowing it exceed a certain boundary (in this case, not touch the ground).

Now I could do this by imposing limits to the two parameters of the arch geometry, but this might mean I miss some possible configurations. Is there a way for galapagos to perform the optimization, while disregarding any result that means the arch intersects with the ground?

I will include my .gh file for reference.