Teja Muppirala

Hi Ramana,
I guess there are a couple of things you could do.

If the line to extrude along is straight, you could do something like this using basic MATLAB commands:

[Z,P] = meshgrid(0:1:100,linspace(0,2*pi,101));
R0 = 0.1;
X = R0 * (100-Z) .* cos(P);
Y = R0 * (100-Z) .* sin(P);
h = surf(X,Y,Z)
rotate(h,[0,0],45)
axis equal

This is an example that just makes a cone along a constant axis.
If you needed the cone to twist around, then I think you would probably have to modify my program a little bit to make the base curve change (get smaller) as you build the surface.

Teja

Hi Yuval, thanks for the feedback. I'll update this when I get a chance in the next few days, but all that you need to do to add caps to the ends is add the following in at line 175.

SUR = cat(3,repmat(C(:,1),1,npt),SUR,repmat(C(:,K),1,npt));

Hmmm. If I move the slider for a long time (about 15 seconds), the GUI fails.
Does this happen to anyone else?
The way I rigged the slider to update dynamically upon dragging is a little shady, and therein may lie the problem.
I'll have to check on this...

I think it is ace and is way beyond anything I could do.

I'm still cheeky enough to suggest some improvements though:

Like Marc, I wanted to edit the default min and max, and found values on lines 921 and 1001, but still needed to click in the box and press enter for them to effect the value that the slider returns.

It'd be great if the context menu of the output plot still worked (so I could check peak response on a step plot for example).

The lock x and y axes buttons didn't seem to work for my plotyy graph.

Still brilliant.