- class ReverseGeocode
- {
- protected $oDB;
-
- protected $fLat;
- protected $fLon;
- protected $iMaxRank = 28;
-
- protected $aLangPrefOrder = array();
-
- protected $bShowAddressDetails = true;
-
- function ReverseGeocode(&$oDB)
- {
- $this->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 $fSearchDiam Search diameter
+ *
+ * @return Record of the interpolation or null.
+ */
+ protected function lookupInterpolation($sPointSQL, $fSearchDiam)
+ {
+ $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 ';
+ $sSQL .= ' ORDER BY distance ASC limit 1';
+
+ return chksql(
+ $this->oDB->getRow($sSQL),
+ "Could not determine closest housenumber on an osm interpolation line."
+ );
+ }
+
+ public function lookup($fLat, $fLon, $bDoInterpolation = true)
+ {
+ return $this->lookupPoint(
+ 'ST_SetSRID(ST_Point('.$fLon.','.$fLat.'),4326)',
+ $bDoInterpolation
+ );
+ }
+
+ public function lookupPoint($sPointSQL, $bDoInterpolation = true)
+ {
+ $iMaxRank = $this->iMaxRank;
+
+ // Find the nearest point
+ $fSearchDiam = 0.0004;
+ $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;
+ }
+
+ $sSQL = 'select place_id,parent_place_id,rank_search,country_code,';
+ $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
+ $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 (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) {
+ $oResult = new Result($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,
+ $aPlace['distance']
+ );
+ if ($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'];
+ }
+ }
+ }
+ }
+ }
+
+ // 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 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) {
+ $oResult = new Result($iPlaceID);
+ }
+ }
+
+ return $oResult;
+ }
+}
projects / nominatim.git / blobdiff