cupolator
domes, vaults and eggs - program to create 3D models and plans
Command line application that enables you to create wide range of domes, vaults, tubes or egg-like shapes from triangular desks. The arch is always in the shape of catenary that makes it possible to design and build extremely tough models or buildings suitable for underground/underwater architecture. The program has two outputs. The first is OBJ file you can import to 3D modelling software, such as Autocad or Blender.