nd_line

Interpolate points on an n-dimensional line by euclidean arc length.

Installation

pip install nd_line

Methods

• ln.interp(dist): returns a point dist length along the arc of the line

• ln.interp_rat(ratio): ratio should be a value between 0 and 1, returns a value ratio*length along the line

• ln.splineify(samples): generates a new line from a spline approximation, occurs in place, use samples to specify how many points will be sampled from the splines to generate the new line

Attributes

• ln.points: the points of the line
• ln.length: the length of the line
• ln.type: linear if not spline approximated, spline otherwise

Example

from nd_line.nd_line import nd_line
import numpy as np

ln = nd_line(np.array([[0, 0, 0], [1, 1, 1], [2, 2, 2]]))
interpolated_point = ln.interp(1.5)
line_length = ln.length
halfway_point = ln.interp_rat(0.5)

Notes

Currently points must be sampled one at a time, future version will allow interpolation of a list of distances along the line