7. The method of claim 1 , wherein the segments correspond to at least three sectors of the field of view about a given point.
7. The method of claim 1 , wherein the segments correspond to at least three sectors of the field of view about a given point. 10. The method of claim 7 , wherein at least some of the sectors have different angular sizes, the method comprising: determining angular sizes of each of the sectors based on an amount of icons corresponding to each of the sectors.