<?php
- class ReverseGeocode
- {
- protected $oDB;
- protected $iMaxRank = 28;
-
- function ReverseGeocode(&$oDB)
- {
- $this->oDB =& $oDB;
- }
-
- function setZoom($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;
- }
-
- // returns { place_id =>, type => '(osm|tiger)' }
- // fails if no place was found
- function lookup($fLat, $fLon, $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;
- $bPlaceIsLine = false;
- while(!$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) $iMaxRank = 26;
-
- $sSQL = 'select place_id,parent_place_id,rank_search,calculated_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 (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';
- 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['calculated_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']. ' | '. "<br>\n";
- }
- }
- $aPlaceLine = chksql($this->oDB->getRow($sSQL),
- "Could not determine closest housenumber on an osm interpolation line.");
- if ($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;
- }
- }
- }
-
- // 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';
- //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";
- }
- }
-
- $aPlaceTiger = chksql($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'];
- $iMaxRank = 30;
- }
- }
-
- // The point we found might be too small - use the address to find what it is a child of
- if ($iPlaceID && $iMaxRank < 28)
- {
- if (($aPlace['rank_search'] > 28 || $bPlaceIsTiger || $bPlaceIsLine) && $iParentPlaceID)
- {
- $iPlaceID = $iParentPlaceID;
- }
- $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'];
- }
- }
- return array('place_id' => $iPlaceID,
- 'type' => $bPlaceIsTiger ? 'tiger' : ($bPlaceIsLine ? 'interpolation' : 'osm'),
- 'fraction' => ($bPlaceIsTiger || $bPlaceIsLine) ? $fFraction : -1);
- }
-
- }
-?>
+
+namespace Nominatim;
+
+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';
+ $sSQL .= ' , ST_Distance(linegeo,'.$sPointSQL.') as distance';
+ $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';
+
+ return chksql(
+ $this->oDB->getRow($sSQL),
+ "Could not determine closest housenumber on an osm interpolation line."
+ );
+ }
+
+ /* lookup()
+ * returns { place_id =>, type => '(osm|tiger)' }
+ * fails if no place was found
+ */
+
+
+ public function lookup($fLat, $fLon, $bDoInterpolation = true)
+ {
+ $sPointSQL = 'ST_SetSRID(ST_Point('.$fLon.','.$fLat.'),4326)';
+ $iMaxRank = $this->iMaxRank;
+
+ // Find the nearest point
+ $fSearchDiam = 0.0004;
+ $iPlaceID = 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;
+ }
+
+ $sSQL = 'select place_id,parent_place_id,rank_search,calculated_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 (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';
+ 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['calculated_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."
+ );
+
+ // look for an interpolation that is closer
+ $aPlaceLine = $this->lookupInterpolation($sPointSQL, $fDistancePlacex);
+
+ if ($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'];
+ }
+ }
+
+ // 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";
+ }
+ }
+
+ $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'];
+ $iMaxRank = 30;
+ }
+ }
+
+ // The point we found might be too small - use the address to find what it is a child of
+ if ($iPlaceID && $iMaxRank < 28) {
+ if (($aPlace['rank_search'] > 28 || $bPlaceIsTiger || $bPlaceIsLine) && $iParentPlaceID) {
+ $iPlaceID = $iParentPlaceID;
+ }
+ $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'];
+ }
+ }
+ return array(
+ 'place_id' => $iPlaceID,
+ 'type' => $bPlaceIsTiger ? 'tiger' : ($bPlaceIsLine ? 'interpolation' : 'osm'),
+ 'fraction' => ($bPlaceIsTiger || $bPlaceIsLine) ? $fFraction : -1
+ );
+ }
+}
projects / nominatim.git / blobdiff