Connecting final and initial point in simple x-y plot (Plotting closed curve/polygon)

Question

Say, for example, I had ...

x = [1 1 2 2];
y = [1 2 2 1];
plot(x, y, \'b-\');

I will get a plot with lines connecting the points (1,1), (1,

Answer 1

Do you have the Image Processing Toolbox? If yes,

 impoly(hparent, position, 'Closed')

might be of use to you.

http://www.mathworks.de/help/toolbox/images/ref/impoly.html