X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/8fd7d319b7ef6ee4d4f8cf3b61eb47903e7fb1eb..fcab68223198d070c68ac8a2bd91894793ecdf4e:/lib/ReverseGeocode.php diff --git a/lib/ReverseGeocode.php b/lib/ReverseGeocode.php index 8503e1eb..8e5e8bd1 100644 --- a/lib/ReverseGeocode.php +++ b/lib/ReverseGeocode.php @@ -1,139 +1,366 @@ oDB =& $oDB; - } - - function setLanguagePreference($aLangPref) - { - $this->aLangPrefOrder = $aLangPref; - } - - function setIncludeAddressDetails($bAddressDetails = true) - { - $this->bAddressDetails = $bAddressDetails; - } - - function setLatLon($fLat, $fLon) - { - $this->fLat = (float)$fLat; - $this->fLon = (float)$fLon; - } - - function setRank($iRank) - { - $this->iMaxRank = $iRank; - } - - function setZoom($iZoom) - { - // Zoom to rank, this could probably be calculated but a lookup gives fine control - $aZoomRank = array( - 0 => 2, // Continent / Sea - 1 => 2, - 2 => 2, - 3 => 4, // Country - 4 => 4, - 5 => 8, // State - 6 => 10, // Region - 7 => 10, - 8 => 12, // County - 9 => 12, - 10 => 17, // City - 11 => 17, - 12 => 18, // Town / Village - 13 => 18, - 14 => 22, // Suburb - 15 => 22, - 16 => 26, // Street, TODO: major street? - 17 => 26, - 18 => 30, // or >, Building - 19 => 30, // or >, Building - ); - $this->iMaxRank = (isset($iZoom) && isset($aZoomRank[$iZoom]))?$aZoomRank[$iZoom]:28; - } - - function lookup() - { - $sPointSQL = 'ST_SetSRID(ST_Point('.$this->fLon.','.$this->fLat.'),4326)'; - $iMaxRank = $this->iMaxRank; - - // Find the nearest point - $fSearchDiam = 0.0004; - $iPlaceID = null; - $aArea = false; - $fMaxAreaDistance = 1; - while(!$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) $iMaxRank = 26; - - $sSQL = 'select place_id,parent_place_id,rank_search 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\')'; - $sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') '; - $sSQL .= ' and indexed_status = 0 '; - $sSQL .= ' OR ST_DWithin('.$sPointSQL.', centroid, '.$fSearchDiam.'))'; - $sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1'; - if (CONST_Debug) var_dump($sSQL); - $aPlace = $this->oDB->getRow($sSQL); - if (PEAR::IsError($aPlace)) - { - failInternalError("Could not determine closest place.", $sSQL, $aPlace); - } - $iPlaceID = $aPlace['place_id']; - $iParentPlaceID = $aPlace['parent_place_id']; - } - - // The point we found might be too small - use the address to find what it is a child of - if ($iPlaceID && $iMaxRank < 28) - { - if ($aPlace['rank_search'] > 28 && $iParentPlaceID) - { - $iPlaceID = $iParentPlaceID; - } - $sSQL = "select address_place_id from place_addressline where place_id = $iPlaceID order by abs(cached_rank_address - $iMaxRank) asc,cached_rank_address desc,isaddress desc,distance desc limit 1"; - $iPlaceID = $this->oDB->getOne($sSQL); - if (PEAR::IsError($iPlaceID)) - { - failInternalError("Could not get parent for place.", $sSQL, $iPlaceID); - } - if (!$iPlaceID) - { - $iPlaceID = $aPlace['place_id']; - } - } - - $oPlaceLookup = new PlaceLookup($this->oDB); - $oPlaceLookup->setLanguagePreference($this->aLangPrefOrder); - $oPlaceLookup->setIncludeAddressDetails($this->bAddressDetails); - $oPlaceLookup->setPlaceId($iPlaceID); - - return $oPlaceLookup->lookup(); - } - } -?> + +namespace Nominatim; + +require_once(CONST_BasePath.'/lib/Result.php'); + +class ReverseGeocode +{ + protected $oDB; + protected $iMaxRank = 28; + + + public function __construct(&$oDB) + { + $this->oDB =& $oDB; + } + + + public function setZoom($iZoom) + { + // Zoom to rank, this could probably be calculated but a lookup gives fine control + $aZoomRank = array( + 0 => 2, // Continent / Sea + 1 => 2, + 2 => 2, + 3 => 4, // Country + 4 => 4, + 5 => 8, // State + 6 => 10, // Region + 7 => 10, + 8 => 12, // County + 9 => 12, + 10 => 17, // City + 11 => 17, + 12 => 18, // Town / Village + 13 => 18, + 14 => 22, // Suburb + 15 => 22, + 16 => 26, // Street, TODO: major street? + 17 => 26, + 18 => 30, // or >, Building + 19 => 30, // or >, Building + ); + $this->iMaxRank = (isset($iZoom) && isset($aZoomRank[$iZoom]))?$aZoomRank[$iZoom]:28; + } + + /** + * Find the closest interpolation with the given 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, $iParentPlaceID = null) + { + $sSQL = 'SELECT place_id, parent_place_id, 30 as rank_search,'; + $sSQL .= ' ST_LineLocatePoint(linegeo,'.$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.')'; + $sSQL .= ' and indexed_status = 0 and startnumber is not NULL '; + if (isset($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.' + ); + } + + 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 country_code FROM country_osm_grid'; + $sSQL .= ' WHERE ST_CONTAINS (geometry, '.$sPointSQL.') limit 1'; + + $aPoly = chksql( + $this->oDB->getRow($sSQL), + 'Could not determine polygon containing the point.' + ); + if ($aPoly) { + $sCountryCode = $aPoly['country_code']; + + $sSQL = 'SELECT place_id, ST_distance('.$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 <= ' .min(25, $iMaxRank); + $sSQL .= ' AND type != \'postcode\''; + $sSQL .= ' AND name IS NOT NULL '; + $sSQL .= ' and indexed_status = 0 and linked_place_id is null'; + $sSQL .= ' AND ST_DWithin('.$sPointSQL.', geometry, 1.0)'; + $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 place_id, parent_place_id, rank_address, rank_search 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'; + + $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 place_id'; + $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) + { + 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 = 0.006; + $oResult = null; + $aPlace = null; + $fMaxAreaDistance = 1; + $bIsTigerStreet = false; + + // for POI or street level + if ($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 .= ' 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.'))'; + $sSQL .= ' ORDER BY distance ASC limit 1'; + if (CONST_Debug) var_dump($sSQL); + $aPlace = chksql( + $this->oDB->getRow($sSQL), + '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, $iDistance); + + if ($aHouse) { + $oResult = new Result($aHouse['place_id'], Result::TABLE_OSMLINE); + $oResult->iHouseNumber = closestHouseNumber($aHouse); + } + } + + // 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, $iParentPlaceID); + + if ($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 $oResult; + } +}