p_poly_dist3d - distances between 3D points and a polyline

Distances between set of 3D points and a 3D polyline

The following files are included:

p_poly_dist3d - function to compute the distances between a set of np 3D points and a 3D polyline, defined by nv 3D vertices. The distance from some point P(j,:) to a polline V is defined as following:

- EITHER a shortest distance from a point P(j,:) to it's projection on a 3D line defined by a segment V(k,:), V(k+1,:), when this projection falls INSIDE a segment k;

- OR as a distance from a point P(j, :) to a closest vertex V(k,:), when the projection falls OUTSIDE of a segment.

test_p_poly_dist3d - a simple script that calls p_poly_dist3d and plots the results. This script computes the distances between points on a 3D straight line, and a helix spiral polyline.

This is a 3D extension of my p_poly_dist 2D function