% plot a --insert-technical-term-- overlayed on the current axis
% coordinates given are image coordinates
function plotQuadragon(points)

hold on;
polygon(points);
p=points;   %shorthand...
text (p(1,1), p(2,1), '1', 'Color', [0, 1, 0], 'FontSize', 18);
text (p(1,2), p(2,2), '2', 'Color', [0, 1, 0], 'FontSize', 18);
text (p(1,3), p(2,3), '3', 'Color', [0, 1, 0], 'FontSize', 18);
text (p(1,4), p(2,4), '4', 'Color', [0, 1, 0], 'FontSize', 18);