Example #1
0
  @Test
  public void testIssue1() {
    double lat = 40.390943;
    double lon = -75.9375;
    GeoHash hash = GeoHash.withCharacterPrecision(lat, lon, 12);

    String base32 = "dr4jb0bn2180";
    GeoHash fromRef = GeoHash.fromGeohashString(base32);
    assertEquals(hash, fromRef);
    assertEquals(base32, hash.toBase32());
    assertEquals(base32, fromRef.toBase32());

    hash = GeoHash.withCharacterPrecision(lat, lon, 10);
    assertEquals("dr4jb0bn21", hash.toBase32());
  }
Example #2
0
 private void assertEncodingWithCharacterPrecision(
     WGS84Point point, int numberOfCharacters, String stringValue) {
   GeoHash hash =
       GeoHash.withCharacterPrecision(
           point.getLatitude(), point.getLongitude(), numberOfCharacters);
   assertEquals(stringValue, hash.toBase32());
 }
Example #3
0
 @Test
 public void testToLongAndBack() {
   double lat = 40.390943;
   double lon = -75.9375;
   GeoHash hash = GeoHash.withCharacterPrecision(lat, lon, 10);
   long lv = hash.longValue();
   assertEquals(lv + (1 << (64 - hash.significantBits())), hash.next().longValue());
   GeoHash hashFromLong = GeoHash.fromLongValue(lv, hash.significantBits());
   assertEquals("dr4jb0bn21", hashFromLong.toBase32());
   assertEquals(hash, hashFromLong);
 }
Example #4
0
  @Test
  public void testKnownNeighbouringHashes() {
    GeoHash h1 = GeoHash.fromGeohashString("u1pb");
    assertEquals("u0zz", h1.getSouthernNeighbour().toBase32());
    assertEquals("u1pc", h1.getNorthernNeighbour().toBase32());
    assertEquals("u300", h1.getEasternNeighbour().toBase32());
    assertEquals("u302", h1.getEasternNeighbour().getEasternNeighbour().toBase32());
    assertEquals("u1p8", h1.getWesternNeighbour().toBase32());

    assertEquals("sp2j", GeoHash.withCharacterPrecision(41.7, 0.08, 4).toBase32());
  }
Example #5
0
 private void checkMovingInCircle(double latitude, double longitude) {
   GeoHash start;
   GeoHash end;
   start = GeoHash.withCharacterPrecision(latitude, longitude, 12);
   end = start.getEasternNeighbour();
   end = end.getSouthernNeighbour();
   end = end.getWesternNeighbour();
   end = end.getNorthernNeighbour();
   assertEquals(start, end);
   assertEquals(start.getBoundingBox(), end.getBoundingBox());
 }