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    %% Volume of 3-D Boundary
% Create and plot a set of random 3-D points.

% Copyright 2015 The MathWorks, Inc.

P = gallery('uniformdata',30,3,1);
plot3(P(:,1),P(:,2),P(:,3),'.')
grid on

%%
% Use the |boundary| function to compute a boundary around the points, and
% find the volume of the resulting shape.
[~, vol] = boundary(P);
vol