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on 15 Oct 2021
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hold on;axis off;
% Petals
t=linspace(0,2*pi,1e3);% theta vector
for b=0:pi/2:pi% angle of rotation
x=275*cos(6*t+b).*cos(t+b);% amplitude = 250
y=275*cos(6*t+b).*sin(t+b);% number of petals = 6 (odd)
c=sqrt(x.^2+y.^2)>127.38;% max radius florets = sqrt(118 * 137.5) ~ 127.38
patch(x(c),y(c),[1,.8157,.2510])% color_petals = [1,.8157,.2510]
end
% Florets
z=linspace(1,118,1200)*137.508;% golden angle = (3-sqrt(5)) * 180 ~ 137.5 [deg]
v=sqrt(z).*cos(z);
w=sqrt(z).*sin(z);
plot(v,w,'ok','MarkerFaceColor',[.4431,.2588,.0667])% color_florets = [.4431,.2588,.0667]
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