Here are the data structures with brief descriptions:

[detail level 123]

Nndpolator
Nndpolator
CNdpolator	This class implements interpolation and extrapolation in n dimensions
Cndp_axes	Multi-axis collection with basic and associated axes
Cndp_axis	Single axis structure containing vertices for one dimension
Cndp_hypercube	N-dimensional hypercube containing vertex values for interpolation
Cndp_query	Main query structure containing query points, hypercubes and results
Cndp_query_pts	Query points structure with indices, flags and coordinates
Cndp_table	Self-contained ndpolation table with axes, grid values and spatial indices