gusucode.com > Matlab精彩编程100例源码程序 > Matlab精彩编程100例源码/实例31/实例31.m
function shili31 h0=figure('toolbar','none',... 'position',[200 150 550 250],... 'name','实例31'); subplot(1,2,1) x=rand(100,1)*16-8; y=rand(100,1)*16-8; r=sqrt(x.^2+y.^2)+eps; z=sin(r)./r; xlin=linspace(min(x),max(x),33); ylin=linspace(min(y),max(y),33); [X,Y]=meshgrid(xlin,ylin); Z=griddata(x,y,z,X,Y,'cubic'); mesh(X,Y,Z) axis tight hold on plot3(x,y,z,'.','Markersize',20) subplot(1,2,2) k=5; n=2^k-1; theta=pi*(-n:2:n)/n; phi=(pi/2)*(-n:2:n)'/n; X=cos(phi)*cos(theta); Y=cos(phi)*sin(theta); Z=sin(phi)*ones(size(theta)); colormap([0 0 0;1 1 1]) C=hadamard(2^k); surf(X,Y,Z,C) axis square