% vec_normals.m — The surface normal field (surfacefunv).
%
% A surfacefunv is a three-component vector field on a surface. normal(dom)
% returns the unit outward normal. quiver(v, scale, n) draws n vectors per
% patch, scaled by `scale`.

mip load --install flatironinstitute/flatironinstitute/surfacefun

rng(0)
p = 16;
nref = 2;
dom = surfacemesh.blob(p + 1, nref);

v = normal(dom);

figure(1);
quiver(v, 0.2, 6)
title('Surface normals');