5 Graph Description Language (GDL) - Absint

Note: Connected components are handled separately during crossing reduction, thus it is not
possible to intermix nodes of different connected components in one ordering sequence. For
example, one connected component consists of nodes A, B, C and another of nodes D, E, all
nodes being positioned at the same level. Thus, for instance, it is not possible to specify the
following horizontal order at level 0: A, D, C, E.
Note further: If the algorithm for downward laid-out trees is used the specified horizontal order
is retained only within nodes that are children of the same node, i. e. in case of downward
laid-out trees it is not possible to specify a horizontal order for the entire level.
• iconcolors
Type: integer
Default value: 32
Attribute of: top-level graph
Description:
This attribute specifies the size of the color map used for colors in bitmap files. For details
on pictures in nodes, see p. 106.
• iconfile
Type: string
Default value: no default value
Attribute of: subgraphs
Description:
This attribute specifies the bitmap file (format raw PBM, PPM) to be displayed in the summary
node of the folded subgraph. Note: if the bitmap file to be displayed is not in the current
directory the environment variable AISEEICONS can be set to the directory containing the
bitmap file. For details on pictures in nodes, see p. 106.
• icons
Type: yes, no
Default value: yes
Attribute of: top-level graph
Description:
no: disables displaying of icons in nodes. Displaying of icons can be enabled again interactively
from the View dialog box.
• ignore_singles
Type: yes, no
Default value: no
Attribute of: top-level graph, subgraphs
Description:
yes: hides all nodes of the remaining graph which would appear singly and unconnected.
These nodes have no edges at all and drawing them sometimes results in an ugly layout of
the remaining graph. The default setting is to show all nodes (no option).
• importance
Type: integer
Default value: 0 (which means infinity)
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