Swapped inputs to Vec2Pt to “squeeze” instead of expand near the attractor point. Also used Nurbs curves instead of IntCrv and added three NetSurf components to get three sets of surfaces from these curves.
nurbs grid_2021Jun10a.gh (43.0 KB)
There is a known error in this code… The RecGrid ‘Ex’ and ‘Ey’ inputs must have the same value. 
Simple fix: Version ‘C’ (‘Ex’ and ‘Ey’ values can be different) Added CONTRACT/ EXPAND switch (Value List) instead of re-wiring.
nurbs grid_2021Jun10c.gh (46.1 KB)