Examples with DistanceCalculator org.locationtech.spatial4j.distance.DistanceCalculator used on opensource projects

Example 1 with DistanceCalculator

use of org.locationtech.spatial4j.distance.DistanceCalculator in project lucene-solr by apache.

the class DistanceValueSource method getValues.

/**
   * Returns the FunctionValues used by the function query.
   */
@Override
public FunctionValues getValues(Map context, LeafReaderContext readerContext) throws IOException {
    LeafReader reader = readerContext.reader();
    final NumericDocValues ptX = DocValues.getNumeric(reader, strategy.getFieldNameX());
    final NumericDocValues ptY = DocValues.getNumeric(reader, strategy.getFieldNameY());
    return new FunctionValues() {

        private int lastDocID = -1;

        private final Point from = DistanceValueSource.this.from;

        private final DistanceCalculator calculator = strategy.getSpatialContext().getDistCalc();

        private final double nullValue = (strategy.getSpatialContext().isGeo() ? 180 * multiplier : Double.MAX_VALUE);

        private double getDocValue(NumericDocValues values, int doc) throws IOException {
            int curDocID = values.docID();
            if (doc > curDocID) {
                curDocID = values.advance(doc);
            }
            if (doc == curDocID) {
                return Double.longBitsToDouble(values.longValue());
            } else {
                return 0.0;
            }
        }

        @Override
        public float floatVal(int doc) throws IOException {
            return (float) doubleVal(doc);
        }

        @Override
        public double doubleVal(int doc) throws IOException {
            // make sure it has minX and area
            double x = getDocValue(ptX, doc);
            if (ptX.docID() == doc) {
                double y = getDocValue(ptY, doc);
                assert ptY.docID() == doc;
                return calculator.distance(from, x, y) * multiplier;
            }
            return nullValue;
        }

        @Override
        public String toString(int doc) throws IOException {
            return description() + "=" + floatVal(doc);
        }
    };
}

Example 2 with DistanceCalculator

use of org.locationtech.spatial4j.distance.DistanceCalculator in project lucene-solr by apache.

the class DistanceValueSource method getValues.

/**
   * Returns the FunctionValues used by the function query.
   */
@Override
public FunctionValues getValues(Map context, LeafReaderContext readerContext) throws IOException {
    LeafReader reader = readerContext.reader();
    final NumericDocValues ptX = DocValues.getNumeric(reader, strategy.getFieldNameX());
    final NumericDocValues ptY = DocValues.getNumeric(reader, strategy.getFieldNameY());
    return new FunctionValues() {

        private int lastDocID = -1;

        private final Point from = DistanceValueSource.this.from;

        private final DistanceCalculator calculator = strategy.getSpatialContext().getDistCalc();

        private final double nullValue = (strategy.getSpatialContext().isGeo() ? 180 * multiplier : Double.MAX_VALUE);

        private double getDocValue(NumericDocValues values, int doc) throws IOException {
            int curDocID = values.docID();
            if (doc > curDocID) {
                curDocID = values.advance(doc);
            }
            if (doc == curDocID) {
                return Double.longBitsToDouble(values.longValue());
            } else {
                return 0.0;
            }
        }

        @Override
        public float floatVal(int doc) throws IOException {
            return (float) doubleVal(doc);
        }

        @Override
        public double doubleVal(int doc) throws IOException {
            // make sure it has minX and area
            double x = getDocValue(ptX, doc);
            if (ptX.docID() == doc) {
                double y = getDocValue(ptY, doc);
                assert ptY.docID() == doc;
                return calculator.distance(from, x, y) * multiplier;
            }
            return nullValue;
        }

        @Override
        public String toString(int doc) throws IOException {
            return description() + "=" + floatVal(doc);
        }
    };
}