Find Concentric Circles

[zou]

I know I can use Find Circular Edge to find circles individully, but I need to force them have the SAME center.

Is there a way to do that?

TIA

[Joe D.]

Hi George,

I am assuming that you are using NI-Vision. If so you can sse the IMAQ extract curves  to do what you need

[zou]

Thanks Joe.

This VI doesn't give me radius, nor center.

How do I get radius, and center from an array of points?

[Joe D.]

Hi George,

There is also the IMAQ find circles vi that will find the radius and center. Hope this helps

[zou]

You mean Find Circles is better than Find Circular Edge ?

[Joe D.]

Hi George,

It depends on your application. I would test both and see what works best.