tolerancein getGraphicIDs

Discussion created by nasersobhan on Jul 2, 2014
hi Guys,
I need to know what's tolerance in GetGrapicIDs() what's this and how do i know what's the current value?

public int[] getGraphicIDs(float x,
                           float y,
                           int tolerance,
                           int numberOfResults)

I am Getting ID of a Point but I don't know what's this?