interpol.triangles

interpol.triangles(anchorpoints: Iterable, anchorvalues: Iterable, outsidevalue=None) → Callable

Standard barycentric interpolation (using triangles) near set of points.

Interpolate the value at any point in the plane, if the coordinates and values of a set of anchors is specified. If >3 anchors are specified, the convex hull around them is tessellated with Delaunay triangles.

Parameters

anchorpoints

Iterable of anchor point coordinates (x, y).

anchorvalues

Iterable of floats specifying the known value at each anchor point.

outsidevalue, optional

Float specifying the value for points outside the hull. If not specified, an attempt at extrapolation is made (default).

Returns

Function that accepts coordinates (x, y) of any point in the plane as a

2-Iterable, and returns the interpolated value at that point.

Notes

Instead of single floats, the anchorvalues may also be iterables of uniform length, e.g. 3- or 4-tuples specifying colors. The interpolation function’s return value has the same length as the anchorvalues.

Source: https://stackoverflow.com/questions/57863618/how-to-vectorize-cal culation-of-barycentric-coordinates-in-python