Surface Texturing

I want to create a square surface with circular dimples on it. Circular dimples are like cylinders in which depth, radius, distance from one dimple to another should be variables. Like a chess board but instead of squares in want circles and instead of 2D i want 3D and I want to control the distance between each cylinders. Can anyone please help me out on this

Answer 1

[Teja Muppirala]

This is not as difficult as you think. You can use the following code as a starting point. Once you understand why it works, then modify it to fit your needs.

xmin = -100;
xmax = 100;

[X,Y] = meshgrid(xmin:xmax);

ctrs = linspace(xmin,xmax,5);

M = ones(size(X));

for Xctr = ctrs(2:end-1)
    for Yctr = ctrs(2:end-1)
        R2 = (X-Xctr).^2 + (Y-Yctr).^2;
        M = M - (R2 <= 20^2);
    end
end
h = surf(M);
zlim([-40 40])
set(h,'facecolor','none');
axis vis3d
zoom(3)

[Bhushan Patil]

from the starting of FOR loop i can't understand pls some one help me!