How to generate points on the surface of an ellipsoid?

14 次查看（过去 30 天）
Nima
Nima 2021-1-6
编辑： Adam Danz 2021-1-12
I'm looking for a method or Matlab-function to generate some points (eg. equidistant points) on the surface of a ellipsoid. A good function to do this for a sphere is available by mySphere(N). Are there any idea to solve this problem? Thanks

请先登录，再回答此问题。

回答（1 个）

Uday Pradhan
Uday Pradhan 2021-1-12
编辑：Uday Pradhan 2021-1-12
Hi,
I believe you can use the ellipsoid function for this. Example:
[x,y,z] = ellipsoid(0,-0.5,0,6,3.25,3.25);
will create an ellipsoid with centre at (0,-0.5,0) and has semi -axis length (6,3.25,3.25). Now, coming to the points on the surface:
You can utilize the x,y and z variables returned by the function. Basically,
[x(i,j),y(i,j),z(i,j)] %where 1<= i,j <= 21
is a point on the ellipsoid. The 21 faces restriction can be made finer by using an extra argument for "number of faces". I hope this helps!
  1 个评论
Adam Danz
Adam Danz 2021-1-12
编辑：Adam Danz 2021-1-12
Ran in:
I think this generates equidistant points along the longitudes and within each latitude but not between latitudes and the points definitely aren't equidistant.
[x,y,z] = ellipsoid(0,-0.5,0,6,3.25,3.25);
plot3(x,y,z,'o')
grid on
axis equal
view(2)
set(gca,'xtick',-6:6,'ytick',-4:4)

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息

标签

产品


版本

R2020b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by