SURF 源代码

[x,y,z]=sphere(20); subplot(1,2,1); surf(x,y,z);axis equal; light('Posi',[0,1,1]); shading interp; hold on; plot3(0,1,1,'p')…

[x,y,z]=sphere(20); colormap(copper); subplot(1,3,1); surf(x,y,z); axis equal subplot(1,3,2); surf(x,y,z);shading flat; axi…

[x,y]=meshgrid(-5:0.1:5); z=cos(x).*cos(y).*exp(-sqrt(x.^2+y.^2)/4); surf(x,y,z);shading interp; pause %程序暂停 i…

clf; x=-1.5:0.1:1.5; y=x; [X,Y]=meshgrid(x,y); Z=0.5.*(1./sqrt((X-0.5).^2+Y.^2)-0.5).^2.*(X.^2+Y.^2)+0.5.*(X.^2+Y.^2); surf(X…

clear clc x=-2:0.01:2; [x,y]=meshgrid(x,x); %x和y都是401x401的矩阵 r=sqrt(x.^2+x.^2)+eps; z=sinc(r); subplot(2,1,1); mesh(z); su…

[x,y]=meshgrid(-3:.6:3, -2:.4:2); x=x(:)'; y=y(:)'; z=(x.^2-2*x).*exp(-x.^2-y.^2-x.*y); % 注意这三个变量均应为行向量 net=newff([-3 3; -2 2],…

[x,y]=meshgrid(-3:.6:3, -2:.4:2); z=(x.^2-2*x).*exp(-x.^2-y.^2-x.*y); surf(x,y,z), axis([-3,3,-2,2,-0.7,1.5]) [x1,y1]=meshgrid…

mu1=[-1,2]; Sigma2=[1 1; 1 3]; % 输入均值向量和协方差矩阵 [X,Y]=meshgrid(-3:0.1:1,-2:0.1:4); xy=[X(:) Y(:)]; % 产生网格数据并处理 p=mvnpdf(xy,mu1,Si…

t=0:0.03:2*pi; y=sin(t.^2); plot(t,y) a=1:32; Z=cwt(y,a,'mexh','plot'); % 绘制绝对值图 surf(t,a,Z); shading flat; axis([0 2*pi,0,…

x=-3+6*rand(200,1); y=-2+4*rand(200,1); % 重新生成样本点 z=(x.^2-2*x).*exp(-x.^2-y.^2-x.*y); ii=find((x+1).^2+(y+0.5).^2>0.5^2); % 找出…