I bought into Plasticity in the hope that it would gain such facilities, but the dev said that that sort of thing was being pushed off to v3.
Tried Dune3D and was moderately successful, but couldn't see where in the U.I. such numeric/programmatic access would be afforded and it doesn't seem to be on the roadmap there either.
I suppose I should break down and buy Rhino 3D and use Grasshopper, or Moment of Inspiration and use its Node Editor, but for now, I've been using:
Tried Dune3D and was moderately successful, but couldn't see where in the U.I. such numeric/programmatic access would be afforded and it doesn't seem to be on the roadmap there either.
I suppose I should break down and buy Rhino 3D and use Grasshopper, or Moment of Inspiration and use its Node Editor, but for now, I've been using:
https://github.com/derkork/openscad-graph-editor