on 29 Oct 2022
% A sphere made of a spiral ribbon
%n=40;% Resolution of the sphere
%S=10;% Number of spirals
w=.06;% (1/S)*t; % Thickness of the ribbon as a factor of other vars
% Theta goes around S times, with n verts per round.
T=[T;T];% top and bottom of ribbon
% Phi slowly goes from -.5 to .5 (top+bottom of sphere) with same # verts
% as theta.
P=[P;P-w];% top and bottom of ribbon, thickness of w.
% Make the surface coordinates
axis equal off