How can I find start nodes and end nodes in a directed graph?

Answer 1

To find graph elements that carry specific structural or graphical properties use [Select Elements] in the [Tools] menu.

To mark all start nodes, i.e. nodes that have no predecessors, go to the tab [Nodes] and select:

1. Use these Criteria : true
2. Criteria : Indegree
3. Maximal Degree : 0

To mark end nodes, i.e. nodes that have no successors, select

1. Use these Criteria : true
2. Criteria : Outdegree
3. Maximal Degree : 0