5 Graph Description Language (GDL) - Absint

0 for pmin
100 for pmax
Attribute of: top-level graph, subgraphs
Description:
pmin sets the minimum number of iterations of the pendulum method. Like crossing reduction,
this method stops when the “imbalance weight” stops decreasing. However, an increase
in imbalance weight might be a local phenomenon, meaning that the imbalance might decrease
much more after a few more iterations.
pmax sets the maximum number of iterations of the pendulum method. Reducing this factor
increases layout calculation speed.
• port_sharing, inport_sharing, outport_sharing
Type: yes, no
Default value:
no (since aiSee 2.1.89) for port-sharing,
no for inport-sharing and outport-sharing
Attribute of: top-level graph, subgraphs
Description:
no suppresses the sharing of ports by edges at nodes. inport-sharing enables the port sharing
of incoming edges only, with outport-sharing enabling the port sharing of outgoing edges
only.
Generally speaking, if multiple edges are adjacent to the same node, and the arrow heads of
all these edges have the same appearance (color, size, etc.), these edges may share a port at a
node. This means that only one arrow head is drawn, and all edges meet at this arrow head.
This enables many edges to be located adjacent to one node without getting confused by too
many arrow heads. If no port sharing is used, each edge gets its own port.
• priority_phase
Type: yes, no
Default value: no
Attribute of: top-level graph, subgraphs
Description:
yes switches on the priority phase. This phase replaces the normal pendulum method with
a specialized method: It forces long vertical edges to be straight, just like the straight phase
(see p. 85). In fact, the straight phase is a fine-tuning of the priority phase, the priority phase
being recommended for an orthogonal layout (see manhattan_edges, p. 79).
• randomfactor
Type: integer
Default value: 70
Attribute of: top-level graph
Description:
This attribute only applies to the forcedir layout algorithm.
If randomized rounds have been specified (see randomrounds, p. 82) then a node is placed
with a probability of randomfactor percent during a round. This factor should be close to
100 in order to prevent the process from stopping too early.
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