namespace Nominatim;
+require_once(CONST_BasePath.'/lib/Result.php');
+
class ReverseGeocode
{
protected $oDB;
/**
* Find the closest interpolation with the given search diameter.
*
- * @param string $sPointSQL Reverse geocoding point as SQL
- * @param float $fSearchDiam Search diameter
+ * @param string $sPointSQL Reverse geocoding point as SQL
+ * @param float $fSearchDiam Search diameter
+ * @param integer $iParentPlaceID Id of parent object
*
* @return Record of the interpolation or null.
*/
- protected function lookupInterpolation($sPointSQL, $fSearchDiam)
+ protected function lookupInterpolation($sPointSQL, $fSearchDiam, $iParentPlaceID = null)
{
$sSQL = 'SELECT place_id, parent_place_id, 30 as rank_search,';
- $sSQL .= ' ST_LineLocatePoint(linegeo,'.$sPointSQL.') as fraction';
- $sSQL .= ' , ST_Distance(linegeo,'.$sPointSQL.') as distance';
+ $sSQL .= ' ST_LineLocatePoint(linegeo,'.$sPointSQL.') as fraction,';
+ $sSQL .= ' startnumber, endnumber, interpolationtype,';
+ $sSQL .= ' ST_Distance(linegeo,'.$sPointSQL.') as distance';
$sSQL .= ' FROM location_property_osmline';
$sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', linegeo, '.$fSearchDiam.')';
$sSQL .= ' and indexed_status = 0 and startnumber is not NULL ';
- $sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', linegeo) ASC limit 1';
+ if (isset($iParentPlaceID)) {
+ $sSQL .= ' and parent_place_id = '.$iParentPlaceID;
+ }
+ $sSQL .= ' ORDER BY distance ASC limit 1';
return chksql(
$this->oDB->getRow($sSQL),
- "Could not determine closest housenumber on an osm interpolation line."
+ 'Could not determine closest housenumber on an osm interpolation line.'
);
}
+
+ protected function polygonFunctions($sPointSQL, $iMaxRank)
+ {
+ // starts the nopolygonFound function if no polygon is found with the lookupPolygon function
+ $oResult = null;
+
+ $aPlace = $this->lookupPolygon($sPointSQL, $iMaxRank);
+ if ($aPlace) {
+ $oResult = new Result($aPlace['place_id']);
+ // if no polygon which contains the searchpoint is found,
+ // the noPolygonFound function searches in the country_osm_grid table for a polygon
+ } elseif (!$aPlace && $iMaxRank > 4) {
+ $aPlace = $this->noPolygonFound($sPointSQL, $iMaxRank);
+ if ($aPlace) {
+ $oResult = new Result($aPlace['place_id']);
+ }
+ }
+ return $oResult;
+ }
+
+ protected function noPolygonFound($sPointSQL, $iMaxRank)
+ {
+ // searches for polygon in table country_osm_grid which contains the searchpoint
+ // and searches for the nearest place node to the searchpoint in this polygon
+ $sSQL = 'SELECT * FROM country_osm_grid';
+ $sSQL .= ' WHERE ST_CONTAINS (geometry, '.$sPointSQL.' )';
+
+ $aPoly = chksql(
+ $this->oDB->getRow($sSQL),
+ 'Could not determine polygon containing the point.'
+ );
+ if ($aPoly) {
+ $sCountryCode = $aPoly['country_code'];
+
+ $sSQL = 'SELECT *, ST_distance('.$sPointSQL.', geometry) as distance';
+ $sSQL .= ' FROM placex';
+ $sSQL .= ' WHERE osm_type = \'N\'';
+ $sSQL .= ' AND country_code = \''.$sCountryCode.'\'';
+ $sSQL .= ' AND rank_address > 0';
+ $sSQL .= ' AND rank_address <= ' .$iMaxRank;
+ $sSQL .= ' AND type != \'postcode\'';
+ $sSQL .= ' AND name IS NOT NULL ';
+ $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
+ $sSQL .= ' ORDER BY distance ASC, rank_address DESC';
+ $sSQL .= ' LIMIT 1';
+
+ if (CONST_Debug) var_dump($sSQL);
+ $aPlacNode = chksql(
+ $this->oDB->getRow($sSQL),
+ 'Could not determine place node.'
+ );
+ if ($aPlacNode) {
+ return $aPlacNode;
+ }
+ }
+ }
+
+ protected function lookupPolygon($sPointSQL, $iMaxRank)
+ {
+ // searches for polygon where the searchpoint is within
+ // if a polygon is found, placenodes with a higher rank are searched inside the polygon
+
+ // polygon search begins at suburb-level
+ if ($iMaxRank > 25) $iMaxRank = 25;
+ // no polygon search over country-level
+ if ($iMaxRank < 4) $iMaxRank = 4;
+ // search for polygon
+ $sSQL = 'SELECT * FROM';
+ $sSQL .= '(select place_id,parent_place_id,rank_address, rank_search, country_code, geometry';
+ $sSQL .= ' FROM placex';
+ $sSQL .= ' WHERE ST_GeometryType(geometry) in (\'ST_Polygon\', \'ST_MultiPolygon\')';
+ $sSQL .= ' AND rank_address Between 4 AND ' .$iMaxRank;
+ $sSQL .= ' AND geometry && '.$sPointSQL;
+ $sSQL .= ' AND type != \'postcode\' ';
+ $sSQL .= ' AND name is not null';
+ $sSQL .= ' AND indexed_status = 0 and linked_place_id is null';
+ $sSQL .= ' ORDER BY rank_address DESC LIMIT 50 ) as a';
+ $sSQL .= ' WHERE ST_CONTAINS(geometry, '.$sPointSQL.' )';
+ $sSQL .= ' ORDER BY rank_address DESC LIMIT 1';
- /* lookup()
- * returns { place_id =>, type => '(osm|tiger)' }
- * fails if no place was found
- */
-
+ $aPoly = chksql(
+ $this->oDB->getRow($sSQL),
+ 'Could not determine polygon containing the point.'
+ );
+ if ($aPoly) {
+ // if a polygon is found, search for placenodes begins ...
+ $iParentPlaceID = $aPoly['parent_place_id'];
+ $iRankAddress = $aPoly['rank_address'];
+ $iRankSearch = $aPoly['rank_search'];
+ $iPlaceID = $aPoly['place_id'];
+
+ if ($iRankAddress != $iMaxRank) {
+ //search diameter for the place node search
+ if ($iMaxRank <= 4) {
+ $fSearchDiam = 4;
+ } elseif ($iMaxRank <= 8) {
+ $fSearchDiam = 2;
+ } elseif ($iMaxRank <= 10) {
+ $fSearchDiam = 1;
+ } elseif ($iMaxRank <= 12) {
+ $fSearchDiam = 0.8;
+ } elseif ($iMaxRank <= 17) {
+ $fSearchDiam = 0.6;
+ } elseif ($iMaxRank <= 18) {
+ $fSearchDiam = 0.2;
+ } elseif ($iMaxRank <= 25) {
+ $fSearchDiam = 0.1;
+ }
+
+ $sSQL = 'SELECT *';
+ $sSQL .= ' FROM (';
+ $sSQL .= ' SELECT place_id, rank_address,country_code, geometry,';
+ $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
+ $sSQL .= ' FROM placex';
+ $sSQL .= ' WHERE osm_type = \'N\'';
+ if ($iRankAddress = 16) {
+ // using rank_search because of a better differentiation for place nodes at rank_address 16
+ $sSQL .= ' AND rank_search > '.$iRankSearch;
+ $sSQL .= ' AND rank_search <= ' .$iMaxRank;
+ $sSQL .= ' AND class = \'place\'';
+ } else {
+ $sSQL .= ' AND rank_address > '.$iRankAddress;
+ $sSQL .= ' AND rank_address <= ' .$iMaxRank;
+ }
+ $sSQL .= ' AND ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
+ $sSQL .= ' AND type != \'postcode\'';
+ $sSQL .= ' AND name IS NOT NULL ';
+ $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
+ // preselection through bbox
+ $sSQL .= ' AND (SELECT geometry FROM placex WHERE place_id = '.$iPlaceID.') && geometry';
+ $sSQL .= ' ORDER BY distance ASC,';
+ $sSQL .= ' rank_address DESC';
+ $sSQL .= ' limit 500) as a';
+ $sSQL .= ' WHERE ST_CONTAINS((SELECT geometry FROM placex WHERE place_id = '.$iPlaceID.'), geometry )';
+ $sSQL .= ' ORDER BY distance ASC, rank_address 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)
{
- $sPointSQL = 'ST_SetSRID(ST_Point('.$fLon.','.$fLat.'),4326)';
+ return $this->lookupPoint(
+ 'ST_SetSRID(ST_Point('.$fLon.','.$fLat.'),4326)',
+ $bDoInterpolation
+ );
+ }
+
+ public function lookupPoint($sPointSQL, $bDoInterpolation = true)
+ {
+ // starts if the search is on POI or street level,
+ // searches for the nearest POI or street,
+ // if a street is found and a POI is searched for,
+ // the nearest POI which the found street is a parent of is choosen.
$iMaxRank = $this->iMaxRank;
// Find the nearest point
- $fSearchDiam = 0.0004;
- $iPlaceID = null;
+ $fSearchDiam = 0.006;
+ $oResult = null;
+ $aPlace = null;
$fMaxAreaDistance = 1;
- $bIsInUnitedStates = false;
- $bPlaceIsTiger = false;
- $bPlaceIsLine = false;
- while (!$iPlaceID && $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) {
- // no house found, try with interpolations
- $aPlaceLine = $this->lookupInterpolation($sPointSQL, $fSearchDiam/2);
-
- if ($aPlaceLine) {
- // interpolation is closer to point than placex house
- $bPlaceIsLine = true;
- $aPlace = $aPlaceLine;
- $iPlaceID = $aPlaceLine['place_id'];
- $iParentPlaceID = $aPlaceLine['parent_place_id']; // the street
- $fFraction = $aPlaceLine['fraction'];
- $iMaxRank = 30;
-
- break;
- }
- }
- // no interpolation found, continue search
- $iMaxRank = 26;
+ $bIsTigerStreet = false;
+
+ // for POI or street level
+ if ($iMaxRank >= 26) {
+ $sSQL = 'select place_id,parent_place_id,rank_address,country_code,';
+ $sSQL .= 'CASE WHEN ST_GeometryType(geometry) in (\'ST_Polygon\',\'ST_MultiPolygon\') THEN ST_distance('.$sPointSQL.', centroid)';
+ $sSQL .= ' ELSE ST_distance('.$sPointSQL.', geometry) ';
+ $sSQL .= ' END as distance';
+ $sSQL .= ' FROM ';
+ $sSQL .= ' placex';
+ $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
+ $sSQL .= ' AND';
+ // only streets
+ if ($iMaxRank == 26) {
+ $sSQL .= ' rank_address = 26';
+ } else {
+ $sSQL .= ' rank_address between 26 and '.$iMaxRank;
}
-
- $sSQL = 'select place_id,parent_place_id,rank_search,country_code';
- $sSQL .= ' FROM placex';
- $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
- $sSQL .= ' and rank_search != 28 and rank_search >= '.$iMaxRank;
- $sSQL .= ' and (name is not null or housenumber is not null)';
- $sSQL .= ' and class not in (\'waterway\',\'railway\',\'tunnel\',\'bridge\',\'man_made\')';
- $sSQL .= ' and indexed_status = 0 ';
+ $sSQL .= ' and (name is not null or housenumber is not null';
+ $sSQL .= ' or rank_address between 26 and 27)';
+ $sSQL .= ' and class not in (\'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\') ';
$sSQL .= ' OR ST_DWithin('.$sPointSQL.', centroid, '.$fSearchDiam.'))';
- $sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1';
+ $sSQL .= ' ORDER BY distance ASC limit 1';
if (CONST_Debug) var_dump($sSQL);
$aPlace = chksql(
$this->oDB->getRow($sSQL),
- "Could not determine closest place."
- );
- $iPlaceID = $aPlace['place_id'];
- $iParentPlaceID = $aPlace['parent_place_id'];
- $bIsInUnitedStates = ($aPlace['country_code'] == 'us');
- }
-
- // If a house was found make sure there isn't an interpolation line
- // that is closer
- if ($bDoInterpolation && !$bPlaceIsLine && $aPlace && $aPlace['rank_search'] == 30) {
- // get the distance of the house to the search point
- $sSQL = 'SELECT ST_distance('.$sPointSQL.', house.geometry)';
- $sSQL .= ' FROM placex as house WHERE house.place_id='.$iPlaceID;
-
- $fDistancePlacex = chksql(
- $this->oDB->getOne($sSQL),
- "Could not determine distance between searched point and placex house."
+ 'Could not determine closest place.'
);
+
+ if ($aPlace) {
+
+ $iDistance = $aPlace['distance'];
+ $iPlaceID = $aPlace['place_id'];
+ $oResult = new Result($iPlaceID);
+ $iParentPlaceID = $aPlace['parent_place_id'];
+
+ if ($bDoInterpolation && $iMaxRank >= 30) {
+ if ($aPlace['rank_address'] <=27) {
+ $iDistance = 0.001;
+ }
+ $aHouse = $this->lookupInterpolation($sPointSQL, $iDistance);
- // look for an interpolation that is closer
- $aPlaceLine = $this->lookupInterpolation($sPointSQL, $fDistancePlacex);
-
- if ($aPlaceLine && (float) $aPlaceLine['distance'] < (float) $fDistancePlacex) {
- // interpolation is closer to point than placex house
- $bPlaceIsLine = true;
- $aPlace = $aPlaceLine;
- $iPlaceID = $aPlaceLine['place_id'];
- $iParentPlaceID = $aPlaceLine['parent_place_id']; // the street
- $fFraction = $aPlaceLine['fraction'];
- }
- }
-
- // Only street found? If it's in the US we can check TIGER data for nearest housenumber
- if (CONST_Use_US_Tiger_Data && $bDoInterpolation && $bIsInUnitedStates && $this->iMaxRank >= 28 && $iPlaceID && ($aPlace['rank_search'] == 26 || $aPlace['rank_search'] == 27 )) {
- $fSearchDiam = 0.001;
- $sSQL = 'SELECT place_id,parent_place_id,30 as rank_search, ST_LineLocatePoint(linegeo,'.$sPointSQL.') as fraction';
- //if (CONST_Debug) { $sSQL .= ', housenumber, ST_distance('.$sPointSQL.', centroid) as distance, st_y(centroid) as lat, st_x(centroid) as lon'; }
- $sSQL .= ' FROM location_property_tiger WHERE parent_place_id = '.$iPlaceID;
- $sSQL .= ' AND ST_DWithin('.$sPointSQL.', linegeo, '.$fSearchDiam.')'; //no centroid anymore in Tiger data, now we have lines
- $sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', linegeo) ASC limit 1';
-
- if (CONST_Debug) {
- $sSQL = preg_replace('/limit 1/', 'limit 100', $sSQL);
- var_dump($sSQL);
-
- $aAllHouses = chksql($this->oDB->getAll($sSQL));
- foreach ($aAllHouses as $i) {
- echo $i['housenumber'] . ' | ' . $i['distance'] * 1000 . ' | ' . $i['lat'] . ' | ' . $i['lon']. ' | '. "<br>\n";
+ if ($aHouse) {
+ $oResult = new Result($aHouse['place_id'], Result::TABLE_OSMLINE);
+ $oResult->iHouseNumber = closestHouseNumber($aHouse);
+ }
}
- }
-
- $aPlaceTiger = chksql(
- $this->oDB->getRow($sSQL),
- "Could not determine closest Tiger place."
- );
- if ($aPlaceTiger) {
- if (CONST_Debug) var_dump('found Tiger housenumber', $aPlaceTiger);
- $bPlaceIsTiger = true;
- $aPlace = $aPlaceTiger;
- $iPlaceID = $aPlaceTiger['place_id'];
- $iParentPlaceID = $aPlaceTiger['parent_place_id']; // the street
- $fFraction = $aPlaceTiger['fraction'];
- $iMaxRank = 30;
- }
- }
+
+ // if street and maxrank > streetlevel
+ if (($aPlace['rank_address'] <=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_address,country_code,';
+ $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
+ $sSQL .= ' FROM ';
+ $sSQL .= ' placex';
+ // radius ?
+ $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, 0.001)';
+ $sSQL .= ' AND parent_place_id = '.$iPlaceID;
+ $sSQL .= ' and rank_address != 28';
+ $sSQL .= ' and (name is not null or housenumber is not null)';
+ $sSQL .= ' and class not in (\'railway\',\'tunnel\',\'bridge\',\'man_made\')';
+ $sSQL .= ' and indexed_status = 0 and linked_place_id is 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 ($aStreet) {
+ $iDistance = $aStreet['distance'];
+ $iPlaceID = $aStreet['place_id'];
+ $oResult = new Result($iPlaceID);
+ $iParentPlaceID = $aStreet['parent_place_id'];
+
+ if ($bDoInterpolation && $iMaxRank >= 30) {
+ $aHouse = $this->lookupInterpolation($sPointSQL, $iDistance, $iParentPlaceID);
- // The point we found might be too small - use the address to find what it is a child of
- if ($iPlaceID && $iMaxRank < 28) {
- if (($aPlace['rank_search'] > 28 || $bPlaceIsTiger || $bPlaceIsLine) && $iParentPlaceID) {
- $iPlaceID = $iParentPlaceID;
- $bPlaceIsLine = false;
- $bPlaceIsTiger = false;
- }
- $sSQL = 'select address_place_id';
- $sSQL .= ' FROM place_addressline';
- $sSQL .= " WHERE place_id = $iPlaceID";
- $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) {
- $iPlaceID = $aPlace['place_id'];
+ if ($aHouse) {
+ $oResult = new Result($aHouse['place_id'], Result::TABLE_OSMLINE);
+ $oResult->iHouseNumber = closestHouseNumber($aHouse);
+ }
+ }
+ }
+ }
+
+ // In the US we can check TIGER data for nearest housenumber
+ if (CONST_Use_US_Tiger_Data && $aPlace['country_code'] == 'us' && $this->iMaxRank >= 28) {
+ $fSearchDiam = $aPlace['rank_address'] > 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);
+ }
+ }
+ // if no POI or street is found ...
+ } else {
+ $oResult = $this->PolygonFunctions($sPointSQL, $iMaxRank);
}
+ // lower than street level ($iMaxRank < 26 )
+ } else {
+ $oResult = $this->PolygonFunctions($sPointSQL, $iMaxRank);
}
- return array(
- 'place_id' => $iPlaceID,
- 'type' => $bPlaceIsTiger ? 'tiger' : ($bPlaceIsLine ? 'interpolation' : 'osm'),
- 'fraction' => ($bPlaceIsTiger || $bPlaceIsLine) ? $fFraction : -1
- );
+ return $oResult;
}
}
projects / nominatim.git / blobdiff