How to randomly divide an M by M region into n sub regions

8 views (last 30 days)
Shamsuddeen Abdullahi on 20 Apr 2019
Edited: Image Analyst on 20 Apr 2019
I what to randomly divide a sqaure region (20 by 20) into 3 portions (not necessary square in shape).
Then randomly deploy points in the 3 regions.
I tried the code below but not getting what i want. I need random divisions (different shapes e.g one portion can be a trapezoid and so on)
m=20;
for i=1:1:m;
n(i)=rand.*0.25.*m;
b(i)=(0.25 +(0.25).*rand).*m;
c(i)=(0.5 +(0.25).*rand).*m;
end
plot (n, '+r')
hold on
plot (b, 'ok')
hold on
plot (c, 'vg')
hold off
The above code gives divisions along horizontal lines
figure 1.
I need something like the above figure 1.

Walter Roberson on 20 Apr 2019
So like one portion might be inside a lopsided pentagon and the next could be out to an ellipse around it, and the third would be the rest?
Walter Roberson on 20 Apr 2019
https://en.m.wikipedia.org/wiki/Voronoi_diagram
Shamsuddeen Abdullahi on 20 Apr 2019
yes