MATLAB 3D函数ellipsoid()

它生成一个椭球函数。

句法

[x, y, z] = ellipsoid(xc, yc, zc, xr, yr, zr, n) // It creates three n+1-by-n+1 matrices so that surf(x, y, z) develop an ellipsoid with center (xc, yc, zc) and radii (xr, yr, zr).
[x, y, z] = ellipsoid(xc, yc, zc, xr, yr, zr) // It uses n = 20.
ellipsoid(...) // with no output argument graphs the ellipsoid as a surface.

例子

cx=0;cy=0;cz=0;
rx=1;ry=2;rz=0.5;
ellipsoid(cx, cy, cz, rx, ry, rz)
axis('equal')

输出