Light Weight Roof - Force Flow Shape Optimization - Part 1/3

Part 1: Form finding
Simulating a three pointed catenary dome in Kangaroo and optimize its shape in Galapagos: I wanted to find a certain set of chain lengths that returns a dome which is tangent to a reference roof plane in the joint point. Also the dome should touch the reference plane in (and only in) that point.
Not shown here:
Form finding of the cantilever curves (sub curves of catenaries) and the catenary arches between two curves. This was also done with Galapagos (create catenary -> change it until it fits and touches the reference roof plane)