12. A method for reorienting a display of clusters, comprising: providing a display of clusters, each cluster having a center located at a distance relative to a common origin for the display; comparing a bounding region of each cluster to a bounding region of each other cluster and determining that two or more of the clusters overlap; and reorienting at least one of the overlapping clusters until no overlap occurs, wherein the steps are performed by a suitably-programmed computer.
12. A method for reorienting a display of clusters, comprising: providing a display of clusters, each cluster having a center located at a distance relative to a common origin for the display; comparing a bounding region of each cluster to a bounding region of each other cluster and determining that two or more of the clusters overlap; and reorienting at least one of the overlapping clusters until no overlap occurs, wherein the steps are performed by a suitably-programmed computer. 20. A method according to claim 12 , further comprising: ordering the clusters relative to the distance from the common origin for each cluster.