mirror of
https://github.com/osm-search/Nominatim.git
synced 2024-11-23 05:35:13 +03:00
changed reverse geocode algorithm
This commit is contained in:
parent
1d0da944a6
commit
d0741f21b1
@ -68,6 +68,50 @@ class ReverseGeocode
|
||||
'Could not determine closest housenumber on an osm interpolation line.'
|
||||
);
|
||||
}
|
||||
|
||||
protected function lookupPolygon($sPointSQL, $iMaxRank)
|
||||
{
|
||||
$sSQL = 'select place_id,parent_place_id,rank_search,country_code, geometry';
|
||||
$sSQL .= ' FROM placex';
|
||||
$sSQL .= ' WHERE ST_GeometryType(geometry) in (\'ST_Polygon\',\'ST_MultiPolygon\')';
|
||||
$sSQL .= ' AND rank_search <= LEAST(25, '.$iMaxRank.')';
|
||||
$sSQL .= ' AND ST_CONTAINS(geometry, '.$sPointSQL.' )';
|
||||
$sSQL .= ' AND type != \'postcode\' ';
|
||||
$sSQL .= ' AND name IS NOT NULL ';
|
||||
$sSQL .= ' ORDER BY rank_search DESC LIMIT 1';
|
||||
|
||||
$aPoly = chksql(
|
||||
$this->oDB->getRow($sSQL),
|
||||
'Could not determine polygon containing the point.'
|
||||
);
|
||||
if ($aPoly) {
|
||||
$iParentPlaceID = $aPoly['parent_place_id'];
|
||||
$iRankSearch = $aPoly['rank_search'];
|
||||
$iGeometry = $aPoly['geometry'];
|
||||
|
||||
$sSQL = 'select place_id,parent_place_id,rank_search,country_code,';
|
||||
$sSQL .=' ST_distance('.$sPointSQL.', geometry) as distance';
|
||||
$sSQL .= ' FROM placex';
|
||||
$sSQL .= ' WHERE osm_type = \'N\'';
|
||||
$sSQL .= ' AND rank_search >= '.$iRankSearch;
|
||||
$sSQL .= ' AND rank_search <= LEAST(25, '.$iMaxRank.')';
|
||||
$sSQL .= ' AND ST_CONTAINS(\''.$iGeometry.'\'::geometry, geometry )';
|
||||
$sSQL .= ' AND type != \'postcode\'';
|
||||
$sSQL .= ' AND name IS NOT NULL ';
|
||||
$sSQL .= ' ORDER BY distance ASC,';
|
||||
$sSQL .= ' rank_search DESC';
|
||||
$sSQL .= ' limit 1';
|
||||
if (CONST_Debug) var_dump($sSQL);
|
||||
$aPlacNode = chksql(
|
||||
$this->oDB->getRow($sSQL),
|
||||
'Could not determine place node.'
|
||||
);
|
||||
if ($aPlacNode) {
|
||||
return $aPlacNode;
|
||||
}
|
||||
}
|
||||
return $aPoly;
|
||||
}
|
||||
|
||||
public function lookup($fLat, $fLon, $bDoInterpolation = true)
|
||||
{
|
||||
@ -79,61 +123,36 @@ class ReverseGeocode
|
||||
|
||||
public function lookupPoint($sPointSQL, $bDoInterpolation = true)
|
||||
{
|
||||
|
||||
$iMaxRank = $this->iMaxRank;
|
||||
|
||||
// Find the nearest point
|
||||
$fSearchDiam = 0.0004;
|
||||
$fSearchDiam = 0.006;
|
||||
$oResult = null;
|
||||
$aPlace = null;
|
||||
$fMaxAreaDistance = 1;
|
||||
$bIsTigerStreet = false;
|
||||
while ($oResult === null && $fSearchDiam < $fMaxAreaDistance) {
|
||||
$fSearchDiam = $fSearchDiam * 2;
|
||||
|
||||
// If we have to expand the search area by a large amount then we need a larger feature
|
||||
// then there is a limit to how small the feature should be
|
||||
if ($fSearchDiam > 2 && $iMaxRank > 4) $iMaxRank = 4;
|
||||
if ($fSearchDiam > 1 && $iMaxRank > 9) $iMaxRank = 8;
|
||||
if ($fSearchDiam > 0.8 && $iMaxRank > 10) $iMaxRank = 10;
|
||||
if ($fSearchDiam > 0.6 && $iMaxRank > 12) $iMaxRank = 12;
|
||||
if ($fSearchDiam > 0.2 && $iMaxRank > 17) $iMaxRank = 17;
|
||||
if ($fSearchDiam > 0.1 && $iMaxRank > 18) $iMaxRank = 18;
|
||||
if ($fSearchDiam > 0.008 && $iMaxRank > 22) $iMaxRank = 22;
|
||||
if ($fSearchDiam > 0.001 && $iMaxRank > 26) {
|
||||
// try with interpolations before continuing
|
||||
if ($bDoInterpolation) {
|
||||
$aHouse = $this->lookupInterpolation($sPointSQL, $fSearchDiam/2);
|
||||
|
||||
if ($aHouse) {
|
||||
$oResult = new Result($aHouse['place_id'], Result::TABLE_OSMLINE);
|
||||
$oResult->iHouseNumber = closestHouseNumber($aHouse);
|
||||
|
||||
$aPlace = $aHouse;
|
||||
$iParentPlaceID = $aHouse['parent_place_id']; // the street
|
||||
$iMaxRank = 30;
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
// no interpolation found, continue search
|
||||
$iMaxRank = 26;
|
||||
}
|
||||
|
||||
|
||||
// for POI or street level
|
||||
if ( $iMaxRank >= 26 ) {
|
||||
|
||||
$sSQL = 'select place_id,parent_place_id,rank_search,country_code,';
|
||||
$sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
|
||||
$sSQL .= 'CASE WHEN ST_GeometryType(geometry) in (\'ST_Polygon\',\'ST_MultiPolygon\') THEN ST_distance('.$sPointSQL.', centroid)';
|
||||
$sSQL .= ' ELSE ST_distance('.$sPointSQL.', geometry) ';
|
||||
$sSQL .= ' END as distance';
|
||||
$sSQL .= ' FROM ';
|
||||
if ($fSearchDiam < 0.01) {
|
||||
$sSQL .= ' placex';
|
||||
$sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
|
||||
$sSQL .= ' AND';
|
||||
$sSQL .= ' placex';
|
||||
$sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
|
||||
$sSQL .= ' AND';
|
||||
// only streets
|
||||
if ($iMaxRank == 26) {
|
||||
$sSQL .= ' rank_search != 28 and rank_search = 26';
|
||||
} else {
|
||||
$sSQL .= ' (SELECT * FROM placex ';
|
||||
$sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
|
||||
$sSQL .= ' LIMIT 1000) as p WHERE';
|
||||
$sSQL .= ' rank_search != 28 and rank_search >= 26';
|
||||
}
|
||||
$sSQL .= ' rank_search != 28 and rank_search >= '.$iMaxRank;
|
||||
$sSQL .= ' and (name is not null or housenumber is not null';
|
||||
$sSQL .= ' or rank_search between 26 and 27)';
|
||||
$sSQL .= ' and type not in (\'proposed\')';
|
||||
$sSQL .= ' and class not in (\'waterway\',\'railway\',\'tunnel\',\'bridge\',\'man_made\')';
|
||||
$sSQL .= ' and indexed_status = 0 and linked_place_id is null';
|
||||
$sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') ';
|
||||
@ -144,80 +163,49 @@ class ReverseGeocode
|
||||
$this->oDB->getRow($sSQL),
|
||||
'Could not determine closest place.'
|
||||
);
|
||||
|
||||
if ($aPlace) {
|
||||
$oResult = new Result($aPlace['place_id']);
|
||||
$iParentPlaceID = $aPlace['parent_place_id'];
|
||||
if ($bDoInterpolation) {
|
||||
if ($aPlace['rank_search'] == 26 || $aPlace['rank_search'] == 27) {
|
||||
$bIsTigerStreet = ($aPlace['country_code'] == 'us');
|
||||
} elseif ($aPlace['rank_search'] == 30) {
|
||||
// If a house was found, make sure there isn't an
|
||||
// interpolation line that is closer.
|
||||
$aHouse = $this->lookupInterpolation(
|
||||
$sPointSQL,
|
||||
$aPlace['distance']
|
||||
$iPlaceID = $aPlace['place_id'];
|
||||
$oResult = new Result($iPlaceID);
|
||||
$iParentPlaceID = $aPlace['parent_place_id'];
|
||||
// if street and maxrank > streetlevel
|
||||
if (($aPlace['rank_search'] == 26 || $aPlace['rank_search'] == 27)&& $iMaxRank > 27 ) {
|
||||
// find the closest object (up to a certain radius) of which the street is a parent of
|
||||
$sSQL = ' select place_id,parent_place_id,rank_search,country_code,';
|
||||
$sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
|
||||
$sSQL .= ' FROM ';
|
||||
$sSQL .= ' placex';
|
||||
// radius ?
|
||||
$sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, 0.003)';
|
||||
$sSQL .= ' AND parent_place_id = '.$iPlaceID;
|
||||
$sSQL .= ' and (name is not null or housenumber is not null)';
|
||||
$sSQL .= ' ORDER BY distance ASC limit 1';
|
||||
if (CONST_Debug) var_dump($sSQL);
|
||||
$aStreet = chksql(
|
||||
$this->oDB->getRow($sSQL),
|
||||
'Could not determine closest place.'
|
||||
);
|
||||
if ($aHouse && $aPlace['distance'] < $aHouse['distance']) {
|
||||
$oResult = new Result(
|
||||
$aHouse['place_id'],
|
||||
Result::TABLE_OSMLINE
|
||||
);
|
||||
$oResult->iHouseNumber = closestHouseNumber($aHouse);
|
||||
|
||||
$aPlace = $aHouse;
|
||||
$iParentPlaceID = $aHouse['parent_place_id'];
|
||||
if ($aStreet) {
|
||||
$iPlaceID = $aStreet['place_id'];
|
||||
$oResult = new Result($iPlaceID);
|
||||
$iParentPlaceID = $aStreet['parent_place_id'];
|
||||
}
|
||||
}
|
||||
}else{
|
||||
$aPlace = $this->lookupPolygon($sPointSQL, $iMaxRank);
|
||||
if ($aPlace) {
|
||||
$oResult = new Result($aPlace['place_id']);
|
||||
}
|
||||
}
|
||||
// lower than street level ($iMaxRank < 26 )
|
||||
}else{
|
||||
$aPlace = $this->lookupPolygon($sPointSQL, $iMaxRank);
|
||||
if ($aPlace) {
|
||||
$oResult = new Result($aPlace['place_id']);
|
||||
}
|
||||
}
|
||||
|
||||
// Only street found? In the US we can check TIGER data for nearest housenumber
|
||||
if (CONST_Use_US_Tiger_Data && $bIsTigerStreet && $this->iMaxRank >= 28) {
|
||||
$fSearchDiam = $aPlace['rank_search'] > 28 ? $aPlace['distance'] : 0.001;
|
||||
$sSQL = 'SELECT place_id,parent_place_id,30 as rank_search,';
|
||||
$sSQL .= 'ST_LineLocatePoint(linegeo,'.$sPointSQL.') as fraction,';
|
||||
$sSQL .= 'ST_distance('.$sPointSQL.', linegeo) as distance,';
|
||||
$sSQL .= 'startnumber,endnumber,interpolationtype';
|
||||
$sSQL .= ' FROM location_property_tiger WHERE parent_place_id = '.$oResult->iId;
|
||||
$sSQL .= ' AND ST_DWithin('.$sPointSQL.', linegeo, '.$fSearchDiam.')';
|
||||
$sSQL .= ' ORDER BY distance ASC limit 1';
|
||||
|
||||
if (CONST_Debug) var_dump($sSQL);
|
||||
|
||||
$aPlaceTiger = chksql(
|
||||
$this->oDB->getRow($sSQL),
|
||||
'Could not determine closest Tiger place.'
|
||||
);
|
||||
if ($aPlaceTiger) {
|
||||
if (CONST_Debug) var_dump('found Tiger housenumber', $aPlaceTiger);
|
||||
$aPlace = $aPlaceTiger;
|
||||
$oResult = new Result($aPlace['place_id'], Result::TABLE_TIGER);
|
||||
$oResult->iHouseNumber = closestHouseNumber($aPlaceTiger);
|
||||
$iParentPlaceID = $aPlace['parent_place_id'];
|
||||
$iMaxRank = 30;
|
||||
}
|
||||
}
|
||||
|
||||
// The point we found might be too small - use the address to find what it is a child of
|
||||
if ($oResult !== null && $iMaxRank < 28) {
|
||||
if ($aPlace['rank_search'] > 28 && $iParentPlaceID) {
|
||||
$iPlaceID = $iParentPlaceID;
|
||||
} else {
|
||||
$iPlaceID = $oResult->iId;
|
||||
}
|
||||
$sSQL = 'select a.address_place_id';
|
||||
$sSQL .= ' FROM place_addressline a, placex p';
|
||||
$sSQL .= " WHERE a.place_id = $iPlaceID and a.address_place_id = p.place_id";
|
||||
$sSQL .= ' AND p.linked_place_id is null';
|
||||
$sSQL .= " ORDER BY abs(cached_rank_address - $iMaxRank) asc,cached_rank_address desc,isaddress desc,distance desc";
|
||||
$sSQL .= ' LIMIT 1';
|
||||
$iPlaceID = chksql($this->oDB->getOne($sSQL), 'Could not get parent for place.');
|
||||
if ($iPlaceID) {
|
||||
$oResult = new Result($iPlaceID);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
return $oResult;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
Loading…
Reference in New Issue
Block a user