A pine tree in snow weather

on 10 Oct 2021

% A pine tree in snow weather

% Based on the Barnsley fern fractal algorithm

% João Zerba https://www.mathworks.com/matlabcentral/fileexchange/100456-pine-tree-with-snow-fern-fractal-mod

N=10e5;

xy=[0;0];

f=zeros(N,2);

P=rand(N,1);

b = [0;1.6];

for i=2:N

if P(i)<0.01

xy=[0 0; 0 0.16]*xy;

elseif P(i)<0.86

xy=[0.75 0.00;-0.04 0.85]*xy+b;

elseif P(i)<0.93

xy=[0.2 -0.26;0.23 0.22]*xy+b;

else

xy=[-0.15 0.28;0.26 0.24]*xy+b*2.75;

end

f(i,1)=xy(1);

f(i,2)=xy(2);

end

scatter(f(:,1),f(:,2),0.1,'.');