AreaSimilarity.cs File Reference

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Classes
class	Lucene.Net.Spatial.BBox.AreaSimilarity
	The algorithm is implemented as envelope on envelope overlays rather than complex polygon on complex polygon overlays. Spatial relevance scoring algorithm: queryArea = the area of the input query envelope targetArea = the area of the target envelope (per Lucene document) intersectionArea = the area of the intersection for the query/target envelopes queryPower = the weighting power associated with the query envelope (default = 1.0) targetPower = the weighting power associated with the target envelope (default = 1.0) queryRatio = intersectionArea / queryArea; targetRatio = intersectionArea / targetArea; queryFactor = Math.pow(queryRatio,queryPower); targetFactor = Math.pow(targetRatio,targetPower); score = queryFactor /// targetFactor; Based on Geoportal's SpatialRankingValueSource. More...

Namespaces
package	Lucene.Net.Spatial.BBox