www.gusucode.com > matlab 案例源码 matlab代码程序 > matlab/FreeBoundaryof2DDelaunayTriangulationExample.m
%% Free Boundary of 2-D Delaunay Triangulation % Use |freeBoundary| when you want to highlight the outer edges of a 2-D % Delaunay triangulation. % Copyright 2015 The MathWorks, Inc. %% % Create a triangulation from a random set of points. x = gallery('uniformdata',[20,1],0); y = gallery('uniformdata',[20,1],1); DT = delaunayTriangulation(x,y); %% % Find the free boundary edges. fe = freeBoundary(DT)'; %% % Plot the mesh and highlight the free boundary edges in red. triplot(DT); hold on; plot(x(fe),y(fe),'-r','LineWidth',2) ; hold off;