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Isometric projection
on 25 Oct 2021
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l=sqrt(3);
k=l/2;
p=lines(143);
q=brighten(p,.8);
s=brighten(p,-.8);
n=0;
x=[0 k 0 -k];
y=[0 .5 1 .5];
v=[0 k k 0];
w=[0 .5 -.5 -1];
for c=1:13
for r=1:11
n=n+1;
a=l*c+k*mod(r,2);
b=1.5*(r-1);
patch(x+a,y+b,q(n,:));
patch(v+a,w+b,p(n,:));
patch(-v+a,w+b,s(n,:));
end
end
axis equal off;
axis([l l*c+k -0.5 r*1.5-1]);