How to create centroid of points within a certain radius?

Discussion created by slj7q on Nov 16, 2010
Latest reply on Jan 18, 2011 by rinadr
We have ~30k points and points close to each other (for example 50 meters or less) should be grouped together as one point (centroid), as shown in attached screenshot (green dots are points we have and blue dots are centroids we want). ET Geowizards can do it but we the demo version has limit of 100 features. Is there any other free tool or method can do it? Thanks!