mpl_toolkits.mplot3d.proj3d.line2d_seg_dist

mpl_toolkits.mplot3d.proj3d.line2d_seg_dist(p1, p2, p0)

distance(s) from line defined by p1 - p2 to point(s) p0

p0[0] = x(s) p0[1] = y(s)

intersection point p = p1 + u*(p2-p1) and intersection point lies within segment if u is between 0 and 1