In this chapter various ways of plotting spherical functions are explained. We start by defining some example functions.
% the smiley
sF1 = S2Fun.smiley;
% some osilatory function
f = @(v) 0.1*(v.theta+sin(8*v.x).*sin(8*v.y));
sF2 = S2FunHarmonic.quadrature(f, 'bandwidth', 150);
Smooth Plot
The default plot
command generates a colored plot without contours
plot(sF1)

plot(sF1)
is the same aspcolor(sF1)
Contour Plot
nonfilled contour plot plots only the contour lines
contour(sF1, 'LineWidth', 2);

Filled Contour Plot
filled contour plot plots the contour lines
contourf(sF1, 'LineWidth', 2);

3D Plot
3D plot of a sphere colored accordingly to the function values.
plot3d(sF1);
set(gca,'CameraUpVector',[0 10 0])
set(gca,'CameraPosition',[-9 0 10])

Surface Plot
3D plot where the radius of the sphere is transformed according to the function values
surf(sF1)
axis off
set(gca,'CameraUpVector',[0 1 0])
set(gca,'CameraPosition',[-9 0 10])

Section Plot
Plot the intersection of the surf plot with a plane defined by a normal vector v
plotSection(sF2, zvector,'color','interp','linewidth',10)
colormap spring
mtexTitle('Flowerpower!')

Spectral Plot
plotting the Fourier coefficients
close all
plotSpektra(sF1,'FontSize',15,'linewidth',2);
xlim([0,40])

The more specific plot options are covered in the respective classes.