trait ItemDistance extends AnyRef
A function method which computes the distance between two {link ItemBoundable}s in an {link STRtree}. Used for Nearest Neighbour searches.
To make a distance function suitable for querying a single index tree via {link STRtree#nearestNeighbour(ItemDistance)} , the function should have a non-zero reflexive distance. That is, if the two arguments are the same object, the distance returned should be non-zero. If it is required that only pairs of distinct items be returned, the distance function must be anti-reflexive, and must return {link Double#MAX_VALUE} for identical arguments.
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- abstract def distance(item1: ItemBoundable, item2: ItemBoundable): Double
Computes the distance between two items.
Computes the distance between two items.
- item2
return the distance between the items throws IllegalArgumentException if the metric is not applicable to the arguments
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