sphere

Syntax

sphere()

sphere(N)

sphere(hAxes, ...)

[x, y, z] = sphere(...)

Inputs

N

Number of horizontal and vertical segments. Default value is 20.

Type: integer

Dimension: scalar

hAxes

Axis handle.

Type: double

Dimension: scalar

Outputs

x, y, z

Sphere coordinates.

Examples

Default sphere:

figure();
sphere();

Plot a sphere with 10 segments:

figure();
sphere(10);

Get the sphere coordinates without plotting the sphere:

[x, y, z] = sphere();

x = [Matrix] 9 x 9
0.00000e+00  0.00000e+00  0.00000e+00  -0.00000e+00  -0.00000e+00  -0.00000e+00  -0.00000e+00  0.00000e+00  0.00000e+00
3.82683e-01  2.70598e-01  2.34326e-17  -2.70598e-01  -3.82683e-01  -2.70598e-01  -7.02978e-17  2.70598e-01  3.82683e-01
7.07107e-01  5.00000e-01  4.32978e-17  -5.00000e-01  -7.07107e-01  -5.00000e-01  -1.29893e-16  5.00000e-01  7.07107e-01
9.23880e-01  6.53281e-01  5.65713e-17  -6.53281e-01  -9.23880e-01  -6.53281e-01  -1.69714e-16  6.53281e-01  9.23880e-01
1.00000e+00  7.07107e-01  6.12323e-17  -7.07107e-01  -1.00000e+00  -7.07107e-01  -1.83697e-16  7.07107e-01  1.00000e+00
9.23880e-01  6.53281e-01  5.65713e-17  -6.53281e-01  -9.23880e-01  -6.53281e-01  -1.69714e-16  6.53281e-01  9.23880e-01
7.07107e-01  5.00000e-01  4.32978e-17  -5.00000e-01  -7.07107e-01  -5.00000e-01  -1.29893e-16  5.00000e-01  7.07107e-01
3.82683e-01  2.70598e-01  2.34326e-17  -2.70598e-01  -3.82683e-01  -2.70598e-01  -7.02978e-17  2.70598e-01  3.82683e-01
1.22465e-16  8.65956e-17  7.49880e-33  -8.65956e-17  -1.22465e-16  -8.65956e-17  -2.24964e-32  8.65956e-17  1.22465e-16
y = [Matrix] 9 x 9
0.00000e+00  0.00000e+00  0.00000e+00  0.00000e+00  0.00000e+00  -0.00000e+00  -0.00000e+00  -0.00000e+00  -0.00000e+00
0.00000e+00  2.70598e-01  3.82683e-01  2.70598e-01  4.68652e-17  -2.70598e-01  -3.82683e-01  -2.70598e-01  -9.37304e-17
0.00000e+00  5.00000e-01  7.07107e-01  5.00000e-01  8.65956e-17  -5.00000e-01  -7.07107e-01  -5.00000e-01  -1.73191e-16
0.00000e+00  6.53281e-01  9.23880e-01  6.53281e-01  1.13143e-16  -6.53281e-01  -9.23880e-01  -6.53281e-01  -2.26285e-16
0.00000e+00  7.07107e-01  1.00000e+00  7.07107e-01  1.22465e-16  -7.07107e-01  -1.00000e+00  -7.07107e-01  -2.44929e-16
0.00000e+00  6.53281e-01  9.23880e-01  6.53281e-01  1.13143e-16  -6.53281e-01  -9.23880e-01  -6.53281e-01  -2.26285e-16
0.00000e+00  5.00000e-01  7.07107e-01  5.00000e-01  8.65956e-17  -5.00000e-01  -7.07107e-01  -5.00000e-01  -1.73191e-16
0.00000e+00  2.70598e-01  3.82683e-01  2.70598e-01  4.68652e-17  -2.70598e-01  -3.82683e-01  -2.70598e-01  -9.37304e-17
0.00000e+00  8.65956e-17  1.22465e-16  8.65956e-17  1.49976e-32  -8.65956e-17  -1.22465e-16  -8.65956e-17  -2.99952e-32
z = [Matrix] 9 x 9
-1.00000e+00  -1.00000e+00  -1.00000e+00  -1.00000e+00  -1.00000e+00  -1.00000e+00  -1.00000e+00  -1.00000e+00  -1.00000e+00
-9.23880e-01  -9.23880e-01  -9.23880e-01  -9.23880e-01  -9.23880e-01  -9.23880e-01  -9.23880e-01  -9.23880e-01  -9.23880e-01
-7.07107e-01  -7.07107e-01  -7.07107e-01  -7.07107e-01  -7.07107e-01  -7.07107e-01  -7.07107e-01  -7.07107e-01  -7.07107e-01
-3.82683e-01  -3.82683e-01  -3.82683e-01  -3.82683e-01  -3.82683e-01  -3.82683e-01  -3.82683e-01  -3.82683e-01  -3.82683e-01
6.12323e-17   6.12323e-17   6.12323e-17   6.12323e-17   6.12323e-17   6.12323e-17   6.12323e-17   6.12323e-17   6.12323e-17
3.82683e-01   3.82683e-01   3.82683e-01   3.82683e-01   3.82683e-01   3.82683e-01   3.82683e-01   3.82683e-01   3.82683e-01
7.07107e-01   7.07107e-01   7.07107e-01   7.07107e-01   7.07107e-01   7.07107e-01   7.07107e-01   7.07107e-01   7.07107e-01
9.23880e-01   9.23880e-01   9.23880e-01   9.23880e-01   9.23880e-01   9.23880e-01   9.23880e-01   9.23880e-01   9.23880e-01
1.00000e+00   1.00000e+00   1.00000e+00   1.00000e+00   1.00000e+00   1.00000e+00   1.00000e+00   1.00000e+00   1.00000e+00

Comments

If there is no axes, one will be created first. If the first argument is an axes handle, the sphere will be created in that axes.

With return values assigned, sphere will not plot the sphere. The sphere plot can be created with the command 'surf(x, y, z)'.