how to create popup menu for geometric optic simulation?

hello everyone, first of all good luck for your research work, i am beginner for matlab. i cant create popup menu for my simulation. how do i do. Please make sure it and please favour? on the image, red line is the aperure diameter.

here is code:

x = [-15, 600000000];

y = [-10, 10];

plot([-20 600000000], [0 0],'-.or');

hold on;

plot([0 0], [-10 10],'-.or');

hold on;

xlabel('Distance')

ylabel('Field of View')

lineLength = 600000000;

angle = 13.4515;

a = 0;

b = 0.375;

a(2) = lineLength * cosd(angle);

b(2) = lineLength * sind(angle);

hold on; % Don't blow away the image.

plot(a, b,'-');

plot(a, -b,'-');

hold on;

Answer 1

[Image Analyst]

You already have a popup (unlabeled) on there for F/stop. Just do the same thing as you did for that one. I.e., in GUIDE, click on the popup icon and drag one out onto the gui figure.

You might also look at this MAGIC framework: http://www.mathworks.com/matlabcentral/fileexchange/24224-magic-matlab-generic-imaging-component