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Octagram
on 8 Oct 2024
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Cite your audio source here (if applicable):
drawframe(1);
Write your drawframe function below
function drawframe(f)
persistent x y
if f == 1
[x,y] = pol2cart(linspace(0, 2*pi, 9) + pi*3/8, 1);
x = x([1 4 7 2 5 8 3 6 1]);
y = y([1 4 7 2 5 8 3 6 1]);
set(gcf, 'Color', 'w');
xlim([-1 1]);
ylim([-1 1]);
hold on
axis off
viscircles([0 0], 1, 'Color', 'b');
plot(x, y, 'Color', [.9 .9 .9], 'LineWidth', 2);
end
s = ceil(f / 12);
a = mod(f, 12);
if a == 0
plot([x(s) x(s+1)], [y(s) y(s+1)], 'k-', 'LineWidth', 2);
else
x2 = x(s) + (x(s+1) - x(s)) * a / 12;
y2 = y(s) + (y(s+1) - y(s)) * a / 12;
plot([x(s) x2], [y(s) y2], 'k-', 'LineWidth', 2);
end
% Audio: https://music.yukizakura.net/free/bgm/u001.wav
end
