org.grinvin
Class Vertex
Represents a single vertex in a graph. A given vertex can belong to at most one graph
at the same time.
It is allowed for vertices to 'survive' after having been
removed from a graph. Typically, such
zombie vertices are kept in memory so that
the undo/redo-manager may still restore it to the graph at a later time.
int | getIndex() - Return the current index of this vertex.
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getIndex
public int getIndex()
Return the current index of this vertex. This index represents a sequence
number in the set of vertices of the graph to which this vertex belongs.
The index lies in the range 0..n-1, where n denotes the total number of vertices
of the graph.
The index of a vertex may change when other vertices
are removed from its parent graph. A vertex which is itself removed from its graph
keeps its index.