Example usage for org.apache.lucene.geo Rectangle Rectangle

Introduction

In this page you can find the example usage for org.apache.lucene.geo Rectangle Rectangle.

Prototype

public Rectangle(double minLat, double maxLat, double minLon, double maxLon) 

Source Link

Document

Constructs a bounding box by first validating the provided latitude and longitude coordinates

Usage

From source file:org.codelibs.elasticsearch.common.geo.GeoHashUtils.java

License:Apache License

/**
 * Computes the bounding box coordinates from a given geohash
 *
 * @param geohash Geohash of the defined cell
 * @return GeoRect rectangle defining the bounding box
 *//*w w w.  j  a v a  2  s.c om*/
public static Rectangle bbox(final String geohash) {
    // bottom left is the coordinate
    GeoPoint bottomLeft = GeoPoint.fromGeohash(geohash);
    long ghLong = longEncode(geohash);
    // shift away the level
    ghLong >>>= 4;
    // deinterleave and add 1 to lat and lon to get topRight
    long lat = BitUtil.deinterleave(ghLong >>> 1) + 1;
    long lon = BitUtil.deinterleave(ghLong) + 1;
    GeoPoint topRight = GeoPoint.fromGeohash(BitUtil.interleave((int) lon, (int) lat) << 4 | geohash.length());

    return new Rectangle(bottomLeft.lat(), topRight.lat(), bottomLeft.lon(), topRight.lon());
}

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