fnplt, splines and figure properties - problems with inbuilt MATHWORKS function

I have some 3D data and I plot into a B-spline:

Z2 = repmat(z, [1, size(z,1)]);
tol = 0.1E-5;
sp = spaps({x,y},Z2,tol);  
fnplt(sp);

(where x, y, z are (1xK) vectors.

I now wish to alter the image of my 3D surface.

for a normal plot eg

h = surf(x,y,Z2);

I would type:

set(h, 'EdgeColor','none');
set(h, 'FaceColor','interp');
set(h, 'FaceLighting','phong');

Where h is a handle. However, I cant generate a handle from fnplt.

I also see that get(gca) and get(gcf) do not allow me access to the properities I wish to set.

I can do what I want, via opening up the visual editor and doing it manually. (the auto code generator for this doesnt seem to give meaningful answers).

Am sure I have missed something obvious.

Many thanks

Answer 1

[Kwok Chong]

Scanning through the code of fnplt.m, I can see that fnplt does not output the handle to the surface object it plots. However, it is just a normal, everyday surface object, plotted with the surf command.

So there are two ways to change the properties:

1- Grab the "points" output argument from fnplt, then plot it with surf. E.g.:

points = fnplt(sp);
h = surf(points{1},points{2},points{3});

2- Grab the handle using some handle locating function like findall. E.g.:

h = findall(gca,'type','surface');

Hope that helps!

[mathworks2011]

great. thanks!