public interface ILcdDistanceFunction<N,E>
ILcdDistanceFunction
calculates distances between two given nodes. This distance
can be of all kinds: it can be an exact distance, or an estimate, an Euclidean distance or a time
cost, ...Modifier and Type | Method and Description |
---|---|
double |
computeDistance(ILcdGraph<N,E> aGraph,
ILcdRoute<N,E> aPrecedingRoute,
ILcdRoute<N,E> aSucceedingRoute,
TLcdTraversalDirection aTraversalDirection)
Returns the distance between the end node of
aPrecedingRoute and the start node of
aSucceedingRoute . |
int |
getOrder()
Returns the order of this function.
|
double computeDistance(ILcdGraph<N,E> aGraph, ILcdRoute<N,E> aPrecedingRoute, ILcdRoute<N,E> aSucceedingRoute, TLcdTraversalDirection aTraversalDirection)
aPrecedingRoute
and the start node of
aSucceedingRoute
.aPrecedingRoute
- the route whose end node is the first of the two nodes between which a
distance is to be calculated. Only the last n
edges of
this route will have an influence on the result, where n
is equal to the order of this distance function. The route should be
completely contained in the given graph, otherwise the correct
behavior of this method is not guaranteed.aSucceedingRoute
- the route whose start node is the second of the two nodes between which
a distance is to be calculated. Only the first n
edges of
this route will have an influence on the result, where n
is equal to the order of this distance function. The route should be
completely contained in the given graph, otherwise the correct
behavior of this method is not guaranteed.aTraversalDirection
- indicating whether the traversal direction should be forward or backward.
If BACKWARD
, the given routes will be traversed in
opposite direction, and the preceding route becomes thus the
succeeding route and vice versa.double
indicating the distance between the end node of
aPrecedingRoute
and the start node of aSucceedingRoute
.int getOrder()