Hello Burak,
To fill the terrain from the elevation data down to mean sea level, you can create polygons that act like vertical planes or walls. These polygons start at the terrain surface and extend down to the z-plane at 0, which represents sea level.
Here is a code snippet demonstrating how this can be achieved:
patchColor = [0.5, 0.5, 0.5]; % Gray color
for i = 1:size(A, 2)
x = [X(:, i); flipud(X(:, i))]; % x cordinates for ith polygon
y = [Y(:, i); flipud(Y(:, i))]; % y cordinates for ith polygon
z = [zeros(size(A, 1), 1); flipud(A(:, i))];
fill3(x, y, z, patchColor, 'EdgeColor', 'none', 'FaceAlpha', 0.5);
end
Below is a screenshot of the output using sample data, showing how the terrain will appear:
For a better understanding of this solution, refer to the documentations below:
