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on 11 Oct 2021
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n=500;
A=nan(n,n);
h=30:60:390;
t=.87;
x=@(i)cosd(h)+2*i*t;
y=@(j)sind(h)+3*j-3;
d=@(a,b,c)round(interp1(a,10*(b+c),30:390));
a=@(i,q)d(h,x(i),q);
b=@(j,q)d(h,y(j),q)+20;
c=@(A,y,x)sub2ind(size(A),y,x);
for i=1:25
for j=1:11
A(c(A,b(j,0),a(i,0)))=1;
A(c(A,b(j,1.5),a(i,t)))=1;
end
end
mesh(30*peaks(n).*A)
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