Plotting surface instead of line

I am creating a gif of a number of 3D plots where x and y are between 0 and 1. However, MatLab is only plotting the data (which is stored in a matrix) of the line where x and y are equal, and not the total surface.

How can I fix it? Thank you in advance

Here is the figure code:

n = 1:steps;
nImages = length(n);
x = (0:0.05:1)';
y = (0:0.05:1)';

fig = figure;
for idx = 1:nImages
    z = final_matrix(:, :, idx);
    plot3(x,y,z,'LineWidth',3)
    xlim([0 1]);
    ylim([0 1]);
    zlim([0 5]);
    xlabel('\xi');
    ylabel('\eta');
    title(['\phi for \tau = ' num2str( n(round(idx, 3))*0.025 - 0.025) ])
    drawnow
    frame = getframe(fig);
    im{idx} = frame2im(frame);
end
close;

Answer 1

[Jonas]

it you want to plot the surface then use the surf(x,y,z) command

[Abcdefghi Abcdef]

I was not aware of this function.

It solved the problem.

Thank you for the help.

[Jonas]

no problem ;)