Users Guide:

• Backgraph -- Presents a sub-menu from which three background graphs, a Delaunay Mesh, Voronoi Regions, or classification Tree, can be choosen.
• Show Lines -- By default each cluster node has lines radiating to points that represent the documents.
• Show Terms -- Sets whether the signature terms are showing.
• Show Count -- The background coloring will change to indicate the number of documents in a cluster.
• Alpha Order -- If the terms are showing, they will display by either order of importance or alphabetical order.
• Flip X and Flip Y-- Flips the X or Y axis.
• View Selected and View Checked-- Displays the selected or checked documents in a document viewer.

• View Documents -- Presents a sub-menu from which single documents or all the documents in the node can be viewed in a document viewer. A check by the document name indicates that it is in the current selection set.
• Freeze Term Highlight -- If set, and the terms are showing, this will freeze the highlighted terms to that node.

• Select Branch -- Selects all the cluster nodes in the highlighted branch. This can be used in conjunction with the other document selection mechanisms.

The vertical scroll bar on the right hand side is the spreader bar. This control causes the cluster nodes to move apart to a more regular, sometimes lattice-like, configuration. Note that in the process some cluster labels may change.

A cluster label is choosen on the basis of the "most representative" signature term in the context of its nearest mesh neighbors. That label may not be the "most representative" in an absolute sense. Examination of the arrow shaped (look closely) lines under the Mesh backgraph option (see above) and the transparency of the label can help reveal how independent a cluster label is amongst its neighbors. In fact, clusters which are surrounded by other clusters with more "authority" about all neighboring signature terms may not have a label. A Galaxy View from CorpusDOG shows clusters with mixed RID emotions and consequently no label.