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Limits of sphere to obtain points

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Nuno
Nuno 2015-5-10
评论： Nuno 2015-5-10
Hello everyone!
I have multiple points (nodes). And i plot (plot3) a sphere with coordinates of center x0,y0 and z0 with radius r. I need to obtain the points (nodes) which are inside in sphere. How i can do this? How i can obtain the limits of curvature of sphere (in x,y and z)?
Thanks!
code:
[x,y,z] = sphere();
plot3(r*x+x0, r*y+y0, r*z+z0,'k-')
  2 个评论
Walter Roberson
Walter Roberson 2015-5-10
What data structure do you have to describe the nodes? For example is it a struct array each element of which is a structure with elements 'x', 'y', 'z', each a scalar?
Nuno
Nuno 2015-5-10
I have the coordinates of nodes (x,y and z) And with this i represent them in plot3

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回答（1 个）

Walter Roberson
Walter Roberson 2015-5-10
All of those nodes are on the outside of the sphere. None of them are inside the sphere.
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