X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/4a321487f3d44241242a1729ab4d137df1f57bfb..174fca9c7ae30ad4bab666f2bdcdb288ed188e3e:/lib/ReverseGeocode.php?ds=sidebyside diff --git a/lib/ReverseGeocode.php b/lib/ReverseGeocode.php index 41eed262..9b43a3e3 100644 --- a/lib/ReverseGeocode.php +++ b/lib/ReverseGeocode.php @@ -1,18 +1,20 @@ oDB =& $oDB; } - function setZoom($iZoom) + public function setZoom($iZoom) { // Zoom to rank, this could probably be calculated but a lookup gives fine control $aZoomRank = array( @@ -40,6 +42,37 @@ class ReverseGeocode $this->iMaxRank = (isset($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'; + $sSQL .= ' , ST_Distance(linegeo,'.$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'; + + 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)', + $bDoInterpolation + ); + } /* lookup() * returns { place_id =>, type => '(osm|tiger)' } @@ -47,15 +80,13 @@ class ReverseGeocode */ - function lookup($fLat, $fLon, $bDoInterpolation = true) + public function lookupPoint($sPointSQL, $bDoInterpolation = true) { - $sPointSQL = 'ST_SetSRID(ST_Point('.$fLon.','.$fLat.'),4326)'; $iMaxRank = $this->iMaxRank; // Find the nearest point $fSearchDiam = 0.0004; $iPlaceID = null; - $aArea = false; $fMaxAreaDistance = 1; $bIsInUnitedStates = false; $bPlaceIsTiger = false; @@ -72,9 +103,29 @@ class ReverseGeocode if ($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) $iMaxRank = 26; + if ($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; - $sSQL = 'select place_id,parent_place_id,rank_search,calculated_country_code'; + break; + } + } + // no interpolation found, continue search + $iMaxRank = 26; + } + + $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; @@ -91,75 +142,38 @@ class ReverseGeocode ); $iPlaceID = $aPlace['place_id']; $iParentPlaceID = $aPlace['parent_place_id']; - $bIsInUnitedStates = ($aPlace['calculated_country_code'] == 'us'); + $bIsInUnitedStates = ($aPlace['country_code'] == 'us'); } - // if a street or house was found, look in interpolation lines table - if ($bDoInterpolation && $this->iMaxRank >= 28 && $aPlace && $aPlace['rank_search'] >= 26) { - // if a house was found, search the interpolation line that is at least as close as the house - $sSQL = 'SELECT place_id, parent_place_id, 30 as rank_search, ST_line_locate_point(linegeo,'.$sPointSQL.') as fraction'; - $sSQL .= ' FROM location_property_osmline'; - $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', linegeo, '.$fSearchDiam.')'; - $sSQL .= ' and indexed_status = 0 '; - $sSQL .= ' ORDER BY ST_distance('.$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']. ' | '. "
\n"; - } - } - $aPlaceLine = chksql( - $this->oDB->getRow($sSQL), - "Could not determine closest housenumber on an osm interpolation line." + // 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." ); - if ($aPlaceLine) { - if (CONST_Debug) var_dump('found housenumber in interpolation lines table', $aPlaceLine); - if ($aPlace['rank_search'] == 30) { - // if a house was already found in placex, we have to find out, - // if the placex house or the interpolated house are closer to the searched point - // distance between point and placex house - $sSQL = 'SELECT ST_distance('.$sPointSQL.', house.geometry) as distance FROM placex as house WHERE house.place_id='.$iPlaceID; - $aDistancePlacex = chksql( - $this->oDB->getRow($sSQL), - "Could not determine distance between searched point and placex house." - ); - $fDistancePlacex = $aDistancePlacex['distance']; - // distance between point and interpolated house (fraction on interpolation line) - $sSQL = 'SELECT ST_distance('.$sPointSQL.', ST_LineInterpolatePoint(linegeo, '.$aPlaceLine['fraction'].')) as distance'; - $sSQL .= ' FROM location_property_osmline WHERE place_id = '.$aPlaceLine['place_id']; - $aDistanceInterpolation = chksql( - $this->oDB->getRow($sSQL), - "Could not determine distance between searched point and interpolated house." - ); - $fDistanceInterpolation = $aDistanceInterpolation['distance']; - if ($fDistanceInterpolation < $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']; - $iMaxRank = 30; - } - // else: nothing to do, take placex house from above - } else { - $bPlaceIsLine = true; - $aPlace = $aPlaceLine; - $iPlaceID = $aPlaceLine['place_id']; - $iParentPlaceID = $aPlaceLine['parent_place_id']; // the street - $fFraction = $aPlaceLine['fraction']; - $iMaxRank = 30; - } + + // 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; - $sSQL = 'SELECT place_id,parent_place_id,30 as rank_search, ST_line_locate_point(linegeo,'.$sPointSQL.') as fraction'; + $sSQL = 'SELECT place_id,parent_place_id,30 as rank_search, ST_LineLocatePoint(linegeo,'.$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, '.$fSearchDiam.')'; //no centroid anymore in Tiger data, now we have lines @@ -194,6 +208,8 @@ class ReverseGeocode if ($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';