如何在Matlab中绘制球体并将其修补为3D图？

Question

I have a 3D plot and I want to put a sphere in a designed position. How can I create a sphere? I expected to use patch? Can anyone help me to do this please?

Answer 1

You can follow this:

Consider the center is at [c1,c2,c3] . The number of faces as r .

[x,y,z] = sphere(r);
surf(x+c1, y+c2, z+c3)

These two lines of code are enough to plot a sphere using the surf command.

For instance, if C=[2,2,2] and r=30 the result is as follows:

This is a sphere of radius 1 centered at [2,2,2] . To have a sphere with an arbitrary radius R , you should multiply the [x,y,z] values by R before adding the center.