% plot_unit_sphere% Plot a wiremesh of the unit sphere onto the current axes.function out = plot_sphere(varargin);if nargin > 0,    pointCount = varargin{1};else,     pointCount = 20;end[sphereX, sphereY, sphereZ] = sphere(pointCount);mesh(sphereX, sphereY, sphereZ, 1*ones(pointCount,pointCount));hidden off;axis equal;colormap(colorcube)