public void NumberOfCharacterTest(int characterLength)
{
int bitLength = characterLength * GeoHash.Base32Bits;
double xUnit = 360d / (1 << ((bitLength + 1) / 2));
double yUnit = 180d / (1 << (bitLength / 2));
RectangleD rect = RectangleD.FromLTRB(0, 0, xUnit, yUnit);
Assert.Equal(characterLength, GeoHashSizeTable.NumberOfCharacter(rect));
}
public GeoHashBoundingBoxQuery(BoundingBox bbox)
{
int fittingBits = GeoHashSizeTable.NumberOfBitsForOverlappingGeoHash(bbox);
WGS84Point center = bbox.CenterPoint;
GeoHash centerHash = GeoHash.WithBitPrecision(center.Latitude, center.Longitude, fittingBits);
if (HashFits(centerHash, bbox))
{
AddSearchHash(centerHash);
}
else
{
ExpandSearch(centerHash, bbox);
}
}
