Doug Hull, MathWorks
(Originally posted on Doug's MATLAB Video Tutorials blog.)
This quick video answers a question about finding the area of the smallest polygon that covers a set of points. It is a chance to use a few commands in MATLAB to simplify a script. Here is the code that will be discussed.
x1 = rand(1,10); y1 = rand(1,10); vi = convhull(x1,y1); polyarea(x1(vi),y1(vi)) plot(x1,y1,'.') axis equal hold on fill ( x1(vi), y1(vi), 'r','facealpha', 0.5 ); hold off
Recorded: 9 Oct 2009