This method finds the center node of a network, the one which minimizes this expression:
∑ Weight(node) * distance(node, CenterNode)
Parameter nodeweights need to have as many elements as NodeCount +1 and contain 0's or positive weights.
The method is aimed at having not too many elements > 0 or it gets slow.
Syntax: CenterNode(var nodeweights: TCostArray): integer;
Example with 10 nodes with weights and the green centernode:
