Kangaroo planar UnaryForce

Hello everybody,

I'm new in this Forum and I'm sorry if this topic is in the wrong category.

I just tried to find a form with the plugin Kangaroo for grasshopper amd used the 2d Voronoi and UnaryForce. The anchorpoints are the vertices of the voronoi rectangle. Now I want to use the unary force to blow it up. But I want the output polylines to be planar, so that I can create planar meshes or surfaces.

I hope that somebody can help me.

Thank you.