Path regions

A path region consists of all the nodes making up the paths from a set of start nodes to a set of end nodes whereby all edges forming the paths have to belong to the edge classes selected. A path region can be

• Folded into a summary node (menu item Fold Region...),
• Presented in a box (Box Region...), or
• Drawn exclusively (Exclusive Region...).

After one of the region operations is invoked the Select Edge Classes dialog box appears (see edge classes) for selecting the edge classes the region operation is confined to. Then a set of regions has to be selected. The region operation is then applied to each member of this set. A single region is selected as follows:

1. Select the start nodes by left-clicking on them
2. Now press right mouse button
3. Select the end nodes by left-clicking on them
4. To finish selecting an individual region, press the right mouse button

Neighbor regions

A neighbor region consists of all nodes that are a maximum of n edges away from the start nodes and belong to the edge classes selected. The direction of the edges is immaterial here. A neighbor region can be

• Folded into a summary node (menu item Fold Neighbors...),
• Presented in a box (Box Neighbors...), or
• Drawn exclusively (Exclusive Neighbors...).

After one of the neighbor region operations is invoked the Select Edge Classes dialog box appears (see edge classes) for selecting the edge classes the neighbor region operation is confined to. Then a set of regions has to be selected. The region operation is then applied to each member of this set.

Each single neighbor region is selected by choosing the start nodes by left-clicking on them. To finish selecting an individual region, press the right mouse button. To finish selecting the set of regions, press the right mouse button again.

The number n of edges that defines the size of a neighbor region can be changed in the View dialog box. Select View... in the main menu. The number n is changed by using the scrollbar. The default value is 3.

Last modified on 26 April 2002 by webmaster. © 2000-2002 AbsInt.
URL: http://www.aisee.com/manual/unix/25.htm

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