The Graphical Results window lets you view the results of a call
  graph, class browser or data structures query, based on the query
  attributes you  specified.  You can view the query results
  horizontally (by default)  or vertically in a variety of graphical
  displays:  a lexical tree, a  compact tree, or a graph.

  For call graph query results, you can focus on particular items in
  the call graph that represent routines or calls to a routine, then
  get specific information on those items.  A routine is shown as a
  "node" in the call graph:  a circle graphic containing a routine
  name.  A call is shown as an "arc" in the call graph:  an arrow
  pointing from one routine to another.

  For class browser query results, you can focus on particular items
  in  the graph that represent classes or uses of a class, then  get
  specific information on those items.  A class is shown as a  "node"
  in the graph:  a rectangular graphic containing a class  name.  A
  use is shown as an "arc" in the graph:  an arrow  pointing from one
  class to another.

  You can move nodes and reformat your display.  Position the pointer
  on a node then press and hold MB2 and drag the mouse to reposition
  the node.

  For large displays, you can use the Navigation window to view the
  entire query result.  Click MB1 on the navigation button; the small
  square in the lower right corner of the top pane.  In the Navigation
  window, the box outlining part of the graph corresponds to the image
  in the query result.  Position the pointer in the box (a cross-hair
  cursor appears).  Press and hold MB1 and drag the box to the part of
  the graph you want to see.  When you release MB1, the outlined area
  now appears in the query result window.  The Navigation window stays
  active until you again click on the navigation button.

  For data structure query results, SCA displays data structure
  information in a similar fashion and provides the same formatting and
  navigation features.