【奠基经典】MATLAB实用程序案例之表面图形的绘制
表面图形的绘制
实例：
function shili31h0=figure('toolbar','none',...'position',,...'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);=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()
C=hadamard(2^k);
surf(X,Y,Z,C)
axis square
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