www.gusucode.com > matlab 案例源码 matlab代码程序 > matlab/AlphaShapeFrom3DPointCloudExample.m
%% Alpha Shape from 3-D Point Cloud % Create and plot a set of 3-D points. % Copyright 2015 The MathWorks, Inc. [x1, y1, z1] = sphere(24); x1 = x1(:); y1 = y1(:); z1 = z1(:); x2 = x1+5; P = [x1 y1 z1; x2 y1 z1]; P = unique(P,'rows'); plot3(P(:,1),P(:,2),P(:,3),'.') axis equal grid on %% % Compute a 3-D alpha shape using an alpha radius of 1. shp = alphaShape(P(:,1),P(:,2),P(:,3),1); plot(shp) axis equal