5 Graph Description Language (GDL) - Absint

This parameter only influences the tree algorithm. Spreading of the uppermost nodes of
large balanced trees would increase the width of the tree to such an extent that the tree would
no longer fit in a window. Consequently, the spread level specifies the minimum level (rank)
where nodes are spread. Nodes of levels above the spread level are not spread.
• state
Type: boxed, clustered, exclusive, folded, unfolded, wrapped,
Default value: unfolded
Attribute of: subgraphs
Description:
This attribute specifies the initial state of a subgraph, i. e. it describes the way a subgraph is
displayed the first time a graph is visualized. The appearance of the subgraph (its state) can
be changed interactively later on (see p. 24).
– boxed
The subgraph is surrounded by a frame, i. e. drawn in a box. The nodes in side the
box are independent of the rest of the graph, i. e. there are no edges connecting nodes
outside the box with nodes inside the box and vice versa. For details, see p. 30.
– clustered
The subgraph is surrounded by a frame. In contrast to a box, edges from nodes outside
the frame are drawn to nodes inside the frame and vice versa. This is an experimental
feature. For details, see p. 30.
– exclusive
The subgraph is shown exclusively. All other nodes of the graph are not visible. Only
edges between nodes of a group are visible. Of course, this value should appear only
once in a graph specification. For details, see p. 31.
– folded
The nodes of a subgraph are hidden. They are represented by a single node, called a
summary node. For details, see p. 29.
– unfolded
This is the default setting.
– wrapped
All nodes and edges belonging to the subgraph are wrapped using the same color. For
details, see p. 31.
• straight_phase
Type: yes, no
Default value: no
Attribute of: top-level graph, subgraphs
Description:
yes switches on the straight phase. This is an additional phase that tries to avoid bends in
long edges. Long edges are drawn as long straight vertical lines. Thus, this phase is not
very appropriate for normal layout, however it is recommended when an orthogonal layout
is selected (see manhattan_edges, p. 79).
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