//public override Explanation CustomExplain(int doc, Explanation subQueryExpl, Explanation valSrcExpl)
//{
// float valSrcScore = valSrcExpl == null ? 0 : valSrcExpl.Value;
// var exp = new Explanation(valSrcScore + subQueryExpl.Value, "custom score: sum of:");
// exp.AddDetail(subQueryExpl);
// if (valSrcExpl != null)
// {
// exp.AddDetail(valSrcExpl);
// }
// return exp;
//}
//public override Explanation CustomExplain(int doc, Explanation subQueryExpl, Explanation[] valSrcExpls)
//{
// return base.CustomExplain(doc, subQueryExpl, valSrcExpls);
//}
private float CalculateDistance(int doc)
{
var x = _currentReaderValuesX[doc];
var y = _currentReaderValuesY[doc];
var context = _strategy.GetSpatialContext();
var pt = context.MakePoint(x, y);
return((float)context.GetDistCalc().Distance(pt, _originPt));
}
public static TopDocs DistanceQueryAndSort_PointVectorStrategy(Searcher searcher, PointVectorStrategy strategy, Point myLocation)
{
var ctx = strategy.GetSpatialContext();
var q = strategy.MakeQuery(new SpatialArgs(
SpatialOperation.IsWithin,
ctx.MakeCircle(myLocation, DistanceUtils.Dist2Degrees(20000, DistanceUtils.EARTH_MEAN_RADIUS_KM))));
TopDocs hits = searcher.Search(q, null, 100, new Sort(new SortField("pointvector", new PointVectorDistanceFieldComparatorSource(myLocation, strategy))));
return(hits);
}
public static TopDocs DistanceFilter_PointVectorStrategy(Searcher searcher, PointVectorStrategy strategy, Point myLocation)
{
var ctx = strategy.GetSpatialContext();
var q = new MatchAllDocsQuery();
var filter = strategy.MakeFilter(new SpatialArgs(SpatialOperation.IsWithin,
ctx.MakeCircle(myLocation,
DistanceUtils.Dist2Degrees(2000,
DistanceUtils
.EARTH_MEAN_RADIUS_KM))));
TopDocs hits = searcher.Search(q, filter, 100);
return(hits);
}