matlab 画实心圆柱体,怎样用matlab画水平实心圆柱体，已知圆柱体的半径和高度。（悬赏值不够了，见谅）...

clear all

r=1;%圆柱半径

n=100;%设置多少个边逼近圆

h=5;%圆柱高

[x,y,z]=cylinder(r,n);%生成标准的100个面的圆柱数据，半径为r，高为1，底面圆心0，0；

z1=[z(1,:);z(2,:)+h-1];%圆柱高增高，变为高h

%为变成实心封顶添加数据

z2=[z(1,:);z1;z1(2,:)];

x2=[zeros(1,n+1);x;zeros(1,n+1)];

y2=[zeros(1,n+1);y;zeros(1,n+1)];

z3=[z1(1,:);z1(1,:)];

x3=[x(1,:);x(1,:)];

y3=[y(1,:);y(1,:)];

z4=[z1(2,:);z1(2,:)];

z5=z2([1,2],:);

x5=x2([1,2],:);

y5=y2([1,2],:);

z6=z2([3,4],:);

figure(1)

mesh(x2,z2,y2)

map=jet(16);

cl=12;%可设置16种颜色(1-16)

map1=map(cl,:);

colormap(map1)

alpha(0.6)%调节透明度(0-1)

axis equal

figure(2)

surf(x2,z2,y2,'LineStyle','none')

map=jet(16);

cl=4;%可设置16种颜色(1-16)

map1=map(cl,:);

colormap(map1)

hold on

surf(x3,z3,y3)

surf(x3,z4,y3)

alpha(.7)%调节透明度(0-1)

hold off

axis equal

figure(3)

surf(x,z1,y)

map=jet(16);

cl=13;%可设置8种颜色(1-16)

map1=map(cl,:);

colormap(map1)

hold on

surf(x5,z5,y5,'LineStyle','none')

surf(x5,z6,y5,'LineStyle','none')

alpha(.9)%调节透明度(0-1)

hold off

axis equal