To save an image into a new 2D projection, the “saveas” function can be used. Additionally, to extract z-values from the figure into a matrix of any arbitrary size, the “interp2” function can be employed by interpolating the x and y values and calculating the corresponding z-values. For more information about these functions, please refer to the documentation using the following commands in MATLAB command line:
web(fullfile(docroot, "/matlab/ref/saveas.html"))
web(fullfile(docroot, "/matlab/ref/interp2.html"))
To save the image as a new 2D image, the following line can be added to your existing code:
saveas(gcf, 'projection.png')
To save the z-values as an arbitrary 3x3 matrix, you can refer to the following code:
% Define new grid size
new_size = 3;
% Create new grid
[xq, yq] = meshgrid(linspace(1, 15, new_size), linspace(1, 15, new_size));
% Interpolate Z values
z_new = interp2(x, y, z, xq, yq);
% Display the new matrix
disp(z_new);
Using this approach, we can obtain the z-values in a 3x3 matrix format as a result.
