How to get element within a certain radius around a particular element.

Posted by nobo on
URL: http://granoo.326.s1.nabble.com/How-to-get-element-within-a-certain-radius-around-a-particular-element-tp763.html

Hi

I have a question about how to get element within a certain radius around a particular element.
Maybe I can solve this problem with a unique ID.
Is there a unique ID for each discrete element?
How do I ge it by cpp?

Thanks