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oracle.spatial.network
Interface AStarCostFunction

public interface AStarCostFunction

this interface defines the heuristic cost function for A* search Users can provide their own cost eistimates to guide the A* search. Default heuristic cost for spatial networks is the Euliddean cost and 0 for logical networks.

Method Summary

double

getHeuristicCost(java.lang.Object currentNodeObj, java.lang.Object goalNodeObj) return the heuristic cost between 2 AStarNodes (currnet node and goal node)

Method Detail

getHeuristicCost

double getHeuristicCost(java.lang.Object currentNodeObj,
                        java.lang.Object goalNodeObj)

return the heuristic cost between 2 AStarNodes (currnet node and goal node)

Parameters:

currentNodeObj - AStarNode current node object

goalNodeObj - AStarNode goal node object

Returns:

A* heuristic cost (emtimated cost from current node to goal node)

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