How to have new classes which inherit or require interaction btwn optimizable params of multiple other classes

[dpanici]

• Planar curves where centers/normals are tangent or on a Surface
  • need Surface parameters to define the surface
  • plus, need to know how many coils to put on the surface, evenly spaced in theta/zeta, with some specified radius, with center/normal specified by the x/n_rho at those theta/zeta points on the surface
  • one option: a Coil wihich as an attribute for Surface
  • attribute for R_lmn, Z_lmn which just are alias for Surface.R_lmn and Z_lmn
  • compute fxn just takes in R_lmn Z_lmn and computes R,Z from there for centers and normals
  • optimizable param: theta and zeta which are each an array of len(num_coils_per_FP) and theta[i],zeta[i] is the angular location on the surface of the coil center/normal (which are calculated from surface).
• New object (OptimizableWrapper) with attributes are curve and surface, DOFs are = [Rlmn, Zlmn, r_n] , but it knows that surface/curve are separate objects
  • look at OptimizableCollection to figure this out