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    clear;
data1=rand(12,12,12);
data2=smooth3(data1,'box',3);
subplot(1,2,1);
p=patch(isosurface(data1,0.5),'FaceColor','Blue','EdgeColor','none');
patch(isocaps(data1,0.5),'FaceColor','interp','EdgeColor','none');
isonormals(data1,p);
view(3);
axis vis3d tight off;
camlight;lighting phong;
subplot(1,2,2);
p=patch(isosurface(data2,0.5),'FaceColor','Blue','EdgeColor','none');
patch(isocaps(data2,0.5),'FaceColor','interp','EdgeColor','none');
isonormals(data2,p);
view(3);
axis vis3d tight off;  %设置坐标轴比例因子相等
camlight;lighting phong; %生成摄像机函数并将其放在合适的位置