desc.geometry.FourierXYZCurve

class desc.geometry.FourierXYZCurve(X_n=[0, 10, 2], Y_n=[0, 0, 0], Z_n=[-2, 0, 0], modes=None, name='')Source

Curve parameterized by Fourier series for X,Y,Z in terms of arbitrary angle s.

Parameters:

• X_n (array-like) – Fourier coefficients for X, Y, Z

• Y_n (array-like) – Fourier coefficients for X, Y, Z

• Z_n (array-like) – Fourier coefficients for X, Y, Z

• modes (array-like) – mode numbers associated with X_n etc.

• name (str) – name for this curve

Methods

change_resolution([N])	Change the maximum angular resolution.
compute(names[, grid, params, transforms, ...])	Compute the quantity given by name on grid.
copy([deepcopy])	Return a (deep)copy of this object.
equiv(other)	Compare equivalence between DESC objects.
flip([normal])	Flip the curve about the plane with specified normal.
from_values(coords[, N, s, basis, name])	Fit coordinates to FourierXYZCurve representation.
get_coeffs(n)	Get Fourier coefficients for given mode number(s).
load(load_from[, file_format])	Initialize from file.
pack_params(p)	Convert a dictionary of parameters into a single array.
rotate([axis, angle])	Rotate the curve by a fixed angle about axis in X, Y, Z coordinates.
save(file_name[, file_format, file_mode])	Save the object.
set_coeffs(n[, X, Y, Z])	Set specific Fourier coefficients.
to_FourierXYZ([N, grid, s, name])	Convert Curve to FourierXYZCurve representation.
to_SplineXYZ([knots, grid, method, name])	Convert Curve to SplineXYZCurve.
translate([displacement])	Translate the curve by a rigid displacement in X, Y, Z.
unpack_params(x)	Convert a single array of concatenated parameters into a dictionary.

Attributes

N	Maximum mode number.
X_basis	Spectral basis for X Fourier series.
X_n	Spectral coefficients for X.
Y_basis	Spectral basis for Y Fourier series.
Y_n	Spectral coefficients for Y.
Z_basis	Spectral basis for Z Fourier series.
Z_n	Spectral coefficients for Z.
dim_x	total number of optimizable parameters.
dimensions	dictionary of integers of sizes of each optimizable parameter.
name	Name of the curve.
optimizable_params	string names of parameters that have been declared optimizable.
params_dict	dictionary of arrays of optimizable parameters.
rotmat	Rotation matrix of curve in X, Y, Z.
shift	Displacement of curve in X, Y, Z.
x_idx	arrays of indices for each parameter in concatenated array.