/** * Test for the geohash::contains() and geohash_set::contains() functions. * This test constructs the test points and ranges in and around the geohash. * * @dataProvider geohashProvider * @param string $geohash */ public function testContains($geohash) { $north = geohash::neighbor($geohash, geohash::north); $south = geohash::neighbor($geohash, geohash::south); $east = geohash::neighbor($geohash, geohash::east); $west = geohash::neighbor($geohash, geohash::west); $outside_tests = array($east, $west); if ($north) { $outside_tests[] = $north; } if ($south) { $outside_tests[] = $south; } // test points outside the geohash box foreach ($outside_tests as $test) { for ($i = 0; $i < 32; $i++) { $point = geohash::decode($test . geohash::encode_digit($i)); $this->assertFalse(geohash::contains($geohash, $point)); } } // test points inside the box for ($i = 0; $i < 32; $i++) { $point = geohash::decode($geohash . geohash::encode_digit($i)); $this->assertTrue(geohash::contains($geohash, $point)); } // and the four edge cases (all corners) $box = geohash::decode_box($geohash); $this->assertTrue(geohash::contains($geohash, new geopoint($box->north, $box->west))); $this->assertTrue(geohash::contains($geohash, new geopoint($box->north, $box->east))); $this->assertTrue(geohash::contains($geohash, new geopoint($box->south, $box->west))); $this->assertTrue(geohash::contains($geohash, new geopoint($box->south, $box->east))); // make a geohash set and test points inside and out $set = new geohash_set(); $set->add_range($geohash . geohash::encode_digit(8), $geohash . geohash::encode_digit(23)); // test points outside the set foreach ($outside_tests as $test) { $point = geohash::decode($test); $this->assertFalse($set->contains($point)); } // test closer points outside the set for ($i = 0; $i < 8; $i++) { $point = geohash::decode($geohash . geohash::encode_digit($i)); $this->assertFalse($set->contains($point)); } for ($i = 24; $i < 32; $i++) { $point = geohash::decode($geohash . geohash::encode_digit($i)); $this->assertFalse($set->contains($point)); } // test points inside the set for ($i = 8; $i < 24; $i++) { $point = geohash::decode($geohash . geohash::encode_digit($i)); $this->assertTrue($set->contains($point)); } // make a compound geohash set and test points inside and out $set = new geohash_set(); $set->add($geohash); $set->add($east); // test points outside the set $outside_tests = array(geohash::neighbor($east, geohash::east), $west); if ($north) { $outside_tests[] = $north; } if ($south) { $outside_tests[] = $south; } foreach ($outside_tests as $test) { $point = geohash::decode($test); $this->assertFalse($set->contains($point)); } // test points inside the set $point = geohash::decode($geohash); $this->assertTrue($set->contains($point)); $point = geohash::decode($east); $this->assertTrue($set->contains($point)); }
/** * Returns true if the point falls within one of the hash boxes. * * @param float $latitude * @param float $longitude * @return boolean */ public function contains($point) { foreach ($this->geohashes as $geohash) { if (is_array($geohash)) { $first = $geohash[0]; $last = $geohash[1]; $test = $first; while ($test <= $last && $test) { if (geohash::contains($test, $point)) { return true; } $test = geohash::increment($test); } } else { if (geohash::contains($geohash, $point)) { return true; } } } return false; }