uf3.representation.bspline¶

This module provides the BSplineBasis class for defining BSpline basis sets from knots and/or pair distance constraints.

Functions

`evaluate_basis_functions`	Evaluate basis functions.
`featurize_force_2B`	param basis_functions list of callable basis functions.
`find_spline_indices`	Identify basis functions indices that are non-zero at each point.
`fit_spline_1d`	Utility function for fitting spline coefficients to a sampled 1D function.
`generate_basis_functions`	param knot_subintervals list of knot subintervals,
`generate_geometric_knots`	Generate knot points or knot sequence using a geometric progression.
`generate_inv_knots`	Generate knot points or knot sequence using an inverse transformation.
`generate_lammps_knots`	Generate knot points or knot sequence using LAMMPS convention of distance^2.
`generate_uniform_knots`	Generate evenly-spaced knot points or knot sequence.
`get_knot_spacer`
`get_knot_subintervals`	Generate 5-knot subintervals for individual basis functions from specified knot sequence.
`knot_sequence_from_points`	Repeat endpoints to satisfy knot sequence requirements (i.e.
`parse_knots_file`	Parse a nested dictionary of knot sequences from JSON file.

Classes

Handler class for BSpline basis sets defined using knot sequences and/or pair distance constraints.