Interpolator¶

class photonforge.Interpolator(x, y, method='linear', coords='real_imag')¶

Interpolator object.

Parameters:

x – Independent variable values.
y – Dependent variable values. Multiple variables sharing the same x values can be interpolated simultaneously by setting y to a sequence of vector.
method – Interpolation method. See table below for options.
coords – Coordinate system used for interpolation of complex values. One of "mag_phase" or "real_imag".

Interpolation method	Description
`"linear"`	Linear interpolation between neighboring points
`"barycentric"`	Barycentric Lagrange interpolation
`"cubicspline"`	Cubic spline interpolation
`"pchip"`	Piecewise cubic Hermite interpolating polynomial
`"akima"`	Akima interpolation
`"makima"`	Modified Akima interpolation

Examples

>>> interp = pf.Interpolator([0, 1, 2], [-1, 1, 1])
>>> interp([0, 1.5])
array([-1.,  1.])

>>> interp = pf.Interpolator([0, 1, 2], [[-1, 1, 1], [0, -1, -2]])
>>> interp([0.5, 1, 3])
array([[ 0. ,  1. ,  1. ],
       [-0.5, -1. , -3. ]])

Methods

Create a copy of this layer specification.

Attributes

`coords`	Interpolation coordinate system for complex values (read-only).
`method`	Interpolation method (read-only).
`properties`	Object properties.
`x`	Independent variable values (read-only).
`y`	Dependent variable values (read-only).

coords¶

Interpolation coordinate system for complex values (read-only).

copy()¶

Create a copy of this layer specification.

method¶

Interpolation method (read-only).

properties¶

Object properties.

Independent variable values (read-only).

Dependent variable values (read-only).