matlab中运用plot绘制各种图形

常使用的plot命令所能绘制出的图形的类型，另外还有些其他的图形
PDF格式的文件是从mathworks公司官方网站下载的，权当些资料看看吧



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
x=-4:0.2:4;
y=x;
[x,y]=meshgrid(x,y);
z=x.^2/9+y.^2/9;
subplot(1,2,1);
mesh(x,y,z);
title('椭圆抛物面网格线');
subplot(1,2,2);
surf(x,y,z);
title('椭圆抛物面网面线');
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
figure(2)
x=-4:0.2:4;
y=x;
[x,y]=meshgrid(x,y);
z=x.^2/9-y.^2/9;
subplot(1,2,1);
mesh(x,y,z);
title('马鞍面网格线');
subplot(1,2,2);
surf(x,y,z);
title('马鞍面网面线');
clc
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
figure(3)
x=-7.5:0.5:7.5;
y=x;
[x,y]=meshgrid(x,y);
r=sqrt(x.^2+y.^2)+eps;
z=sin(r)./r;
subplot(1,2,1);
mesh(x,y,z);
title('阔边帽网格线');
subplot(1,2,2);
surf(x,y,z);
title('阔边帽网面线');
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
figure(4)
x=-7.5:0.5:7.5;
y=x;
z=3*(1-x).^2.*exp(-(x.^2)-(y+1).^2)-10*(x/5-x.^3-y.^5).*exp(-x.^2-y.^2)...
    -1/3*exp(-(x+1).^2-y.^2)
subplot(1,2,1);
mesh(peaks);
title('峰形函数的网格线');
subplot(1,2,2);
surf(peaks);
title('峰形函数的网面线');
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
figure(5)
[x,y,z]=peaks;
subplot(2,2,1);
contour(z,20)
subplot(2,2,2);
contour(x,y,z,20)
subplot(2,2,3);
contour3(z,20)
subplot(2,2,4);
contour3(x,y,z,20)
colormap(cool)
hidden on
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
figure(6)
[x0,y0,z0]=sphere(30)
x=2*x0;y=2*y0;z=2*z0;
clf,subplot(1,2,1)
surf(x0,y0,z0)
shading interp
hold on ,mesh(x,y,z),colormap(hot),hold off
hidden off
axis equal ,axis off
title('透视图')
subplot(1,2,2)
surf(x0,y0,z0)
shading interp
hold on ,mesh(x,y,z),colormap(hot),hold off
hidden on
axis equal ,axis off
title('消隐图')
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
clc
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
figure(8)
t=(0:0.02:2)*pi;
x=sin(t);
y=cos(t);
z=cos(2*t);
plot3(x,y,z,'b-',x,y,z,'bd');
legend('链子','宝石')
box on
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
clc
figure(9)
t=(0:0.02:2);
x=sin(t);
y=cos(t);
z=cos(2*t);
plot3(x,y,z,'b-',x,y,z,'bd')
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
figure(10)
x=-7.5:0.5:7.5;
y=x;
[x,y]=meshgrid(x,y)
r=sqrt(x.^2+y.^2)+eps
z=sin(r)./r
subplot(1,2,1);
mesh(x,y,z);
title('阔边帽网格线');
subplot(1,2,2);
surf(x,y,z);
title('阔边帽网面线');
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%5
figure(11)
clc
x=-2:2;
y=[3,5,2,4,1;3,4,5,2,1;5,4,3,2,5]
subplot(1,2,1),bar3(x',y',1)
xlabel('因素ABC'),ylabel('x'),zlable('y')
colormap(summer)
subplot(1,2,2)
bar3h(x',y','grouped')
ylabel('x'),zlabel('x')