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Geometric design principles (1)
on 26 Oct 2021
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t=0:390/4:360*13;
r=1;
for i=1:3
patch('xdata',r*cosd(t),'ydata',r*sind(t),'edgecolor','w','linewidth',2,'facecolor','none','edgealpha',0.3);
hold on;
plot(r*0.625/0.6*cosd(t),r*0.625/0.6*sind(t),'.w','markersize',15-i^2);
r=r*0.55;
end
axis equal off;
set(gcf,'color','k');