Matlab基本函数-cylinder函数

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1、cylinder函数：绘制三维圆柱图

2、用法说明：

（1）[x,y,z]=cylinder 函数返回一半径和高度都为1的圆柱体x，y，z轴的坐标值，圆柱体沿其周长有20个等距分布的点

（2）[x,y,z]=cylinder(r) 函数一个半径为r、高度为1的圆柱体的x，y，z轴的坐标值，圆柱体沿其周长有20个等距分布的点

（3）[x,y,z]=cylinder(r,n) 函数一个半径为r、高度为1的圆柱体的x，y，z轴的坐标值，圆柱体沿其周长有n个等距分布的点

（4）cylinder(...) 函数只绘制圆柱，没有任何的输出参量。其他参量及结果同上

3、实例

3.1、[x,y,z]=cylinder 函数

>> [x,y,x] = cylinderx =  Columns 1 through 17     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  Columns 18 through 21     0     0     0     0     1     1     1     1y =  Columns 1 through 10         0    0.3090    0.5878    0.8090    0.9511    1.0000    0.9511    0.8090    0.5878    0.3090         0    0.3090    0.5878    0.8090    0.9511    1.0000    0.9511    0.8090    0.5878    0.3090  Columns 11 through 20    0.0000   -0.3090   -0.5878   -0.8090   -0.9511   -1.0000   -0.9511   -0.8090   -0.5878   -0.3090    0.0000   -0.3090   -0.5878   -0.8090   -0.9511   -1.0000   -0.9511   -0.8090   -0.5878   -0.3090  Column 21         0         0x =  Columns 1 through 17     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  Columns 18 through 21     0     0     0     0     1     1     1     1

3.2、[x,y,z]=cylinder(r)函数

>> [x,y,z]=cylinder(5)x =  Columns 1 through 10    5.0000    4.7553    4.0451    2.9389    1.5451    0.0000   -1.5451   -2.9389   -4.0451   -4.7553    5.0000    4.7553    4.0451    2.9389    1.5451    0.0000   -1.5451   -2.9389   -4.0451   -4.7553  Columns 11 through 20   -5.0000   -4.7553   -4.0451   -2.9389   -1.5451   -0.0000    1.5451    2.9389    4.0451    4.7553   -5.0000   -4.7553   -4.0451   -2.9389   -1.5451   -0.0000    1.5451    2.9389    4.0451    4.7553  Column 21    5.0000    5.0000y =  Columns 1 through 10         0    1.5451    2.9389    4.0451    4.7553    5.0000    4.7553    4.0451    2.9389    1.5451         0    1.5451    2.9389    4.0451    4.7553    5.0000    4.7553    4.0451    2.9389    1.5451  Columns 11 through 20    0.0000   -1.5451   -2.9389   -4.0451   -4.7553   -5.0000   -4.7553   -4.0451   -2.9389   -1.5451    0.0000   -1.5451   -2.9389   -4.0451   -4.7553   -5.0000   -4.7553   -4.0451   -2.9389   -1.5451  Column 21         0         0z =  Columns 1 through 17     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  Columns 18 through 21     0     0     0     0     1     1     1     1>> [x,y,z]=cylinder(5)x =  Columns 1 through 10    5.0000    4.7553    4.0451    2.9389    1.5451    0.0000   -1.5451   -2.9389   -4.0451   -4.7553    5.0000    4.7553    4.0451    2.9389    1.5451    0.0000   -1.5451   -2.9389   -4.0451   -4.7553  Columns 11 through 20   -5.0000   -4.7553   -4.0451   -2.9389   -1.5451   -0.0000    1.5451    2.9389    4.0451    4.7553   -5.0000   -4.7553   -4.0451   -2.9389   -1.5451   -0.0000    1.5451    2.9389    4.0451    4.7553  Column 21    5.0000    5.0000y =  Columns 1 through 10         0    1.5451    2.9389    4.0451    4.7553    5.0000    4.7553    4.0451    2.9389    1.5451         0    1.5451    2.9389    4.0451    4.7553    5.0000    4.7553    4.0451    2.9389    1.5451  Columns 11 through 20    0.0000   -1.5451   -2.9389   -4.0451   -4.7553   -5.0000   -4.7553   -4.0451   -2.9389   -1.5451    0.0000   -1.5451   -2.9389   -4.0451   -4.7553   -5.0000   -4.7553   -4.0451   -2.9389   -1.5451  Column 21         0         0z =  Columns 1 through 17     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     0     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1  Columns 18 through 21     0     0     0     0     1     1     1     1

3.3、[x,y,z]=cylinder(r,n) 函数

>> [x,y,z]=cylinder(5,10)x =  Columns 1 through 10    5.0000    4.0451    1.5451   -1.5451   -4.0451   -5.0000   -4.0451   -1.5451    1.5451    4.0451    5.0000    4.0451    1.5451   -1.5451   -4.0451   -5.0000   -4.0451   -1.5451    1.5451    4.0451  Column 11    5.0000    5.0000y =  Columns 1 through 10         0    2.9389    4.7553    4.7553    2.9389    0.0000   -2.9389   -4.7553   -4.7553   -2.9389         0    2.9389    4.7553    4.7553    2.9389    0.0000   -2.9389   -4.7553   -4.7553   -2.9389  Column 11         0         0z =     0     0     0     0     0     0     0     0     0     0     0     1     1     1     1     1     1     1     1     1     1     1

3.4、cylinder(...) 函数

>> cylinder(5)

绘制的圆柱图