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1、用matlab绘制的漂亮图形1.不同坐标系下的图形对比theta=0:pi/20:4*pi;phi=theta.^2-theta;[t,p]=meshgrid(theta,phi);r=t.*p;subplot(1,2,1);mesh(t,p,r);ylabel('x');xlabel('y');zlabel('z');[x,y,z]=sph2cart(t,p,r);subplot(1,2,2);mesh(x,y,z);ylabel('x');xlabel('y');zlabel('z');2.球曲面的法线[x,y,z]=sphere;Surfnorm(x,y
2、,z)3.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);mesh(X,Y,Z);axistight;holdon;ylabel('x');xlabel('y');zlabel('z');plot3(x,y,z,’r’,’MarkerSize’,
3、15)x=rand(1000,1)*16-8;y=rand(1000,1)*16-8;r=sqrt(x.^2+y.^2)+eps;z=sin(r)./r;xlin=linspace(min(x),max(x),99);ylin=linspace(min(y),max(y),99);[X,Y]=meshgrid(xlin,ylin);Z=griddata(x,y,z,X,Y);mesh(X,Y,Z);axistight;holdon;ylabel('x');xlabel('y');zlabel('z');plot3(x,y,z,'r','MarkerSize',
4、30);去掉网格后：4.圆通fnplt(fncmb(rsmak(‘cylinder’,1,2),[00-1;010;100]));axisequal,axisoff;shadinginterp5.c=8.01*10^(-6);T=9.8*0.940*10^(-7);form=1:100a=m/10000000;forn=1:100b=n/10000000;omiga(m,n)=sqrt((10.6667*a^3*b^5+10.6667*a^5*b^3)/(2.3112*a^5*b^5*c)*T)/(2*pi);endendmesh((1:100)/100000
5、00,(1:100)/10000000,omiga);ylabel('半短轴b');xlabel('半长轴a');zlabel('频率f');6.马鞍面x=-8:8;y=-8:8;[X,Y]=meshgrid(x,y);Z=(X.^2./4.^2-Y.^2./5.^2);meshz(X,Y,Z);ylabel('x');xlabel('y');zlabel('z');x=-8:8;y=-8:8;[X,Y]=meshgrid(x,y);Z=X.^2./4.^2-Y.^2./5.^2;surfc(X,Y,Z);ylabel('x');xlabel('y');zla
6、bel('z');7.螺旋线t=0:pi/60:10*pi;x=sin(t);y=cos(t);plot3(x,y,t,'*-b');ylabel('x');xlabel('y');zlabel('z');t=0:pi/60:10*pi;x=sin(t);y=cos(t);fill3(x,y,t,'*-b');ylabel('x');xlabel('y');zlabel('z');8.[x,y]=meshgrid([-2:0.2:2]);f=x.^2+y.^2;[fx,fy]=gradient(f,0.2,0.2);quiver(x,y,fx,fy);hold
7、oncontour(x,y,f);9.[x,y]=meshgrid([-4:0.1:4]);z=x.*exp(-x.^2-y.^2);plot3(x,y,z);10.[x,y]=meshgrid([-2:0.05:2]);z=x.*exp(-x.^2-y.^2);surf(x,y,z);11.牛顿环（动态的）clearR=1;N=400;lamda=200e-9;rr=0.0017;[x,y]=meshgrid(linspace(-rr,rr,N));r=sqrt(x.^2+y.^2);phi=r.^2/R./lamda.*pi.*2+pi;I=4.*cos(
8、phi./2).^2;H=imshow
