X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/97c572b92f5e09d646ce045a949e40d53f87243a..5464dec0570c2451d8607bc739c6f2b6f298bb75:/lib/ReverseGeocode.php

diff --git a/lib/ReverseGeocode.php b/lib/ReverseGeocode.php
index e40ce6cc..b523d0aa 100644
--- a/lib/ReverseGeocode.php
+++ b/lib/ReverseGeocode.php
@@ -2,34 +2,13 @@
 	class ReverseGeocode
 	{
 		protected $oDB;
-
-		protected $fLat;
-		protected $fLon;
 		protected $iMaxRank = 28;
 
-		protected $aLangPrefOrder = array();
-
 		function ReverseGeocode(&$oDB)
 		{
 			$this->oDB =& $oDB;
 		}
 
-		function setLanguagePreference($aLangPref)
-		{
-			$this->aLangPrefOrder = $aLangPref;
-		}
-
-		function setLatLon($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
@@ -58,11 +37,12 @@
 			$this->iMaxRank = (isset($iZoom) && isset($aZoomRank[$iZoom]))?$aZoomRank[$iZoom]:28;
 		}
 
-		function lookup()
+		// returns { place_id =>, type => '(osm|tiger)' }
+		// fails if no place was found
+		function lookup($fLat, $fLon, $bDoInterpolation = true)
 		{
-			$sPointSQL = 'ST_SetSRID(ST_Point('.$this->fLon.','.$this->fLat.'),4326)';
+			$sPointSQL = 'ST_SetSRID(ST_Point('.$fLon.','.$fLat.'),4326)';
 			$iMaxRank = $this->iMaxRank;
-			$iMaxRank_orig = $this->iMaxRank;
 
 			// Find the nearest point
 			$fSearchDiam = 0.0004;
@@ -71,6 +51,7 @@
 			$fMaxAreaDistance = 1;
 			$bIsInUnitedStates = false;
 			$bPlaceIsTiger = false;
+			$bPlaceIsLine = false;
 			while(!$iPlaceID && $fSearchDiam < $fMaxAreaDistance)
 			{
 				$fSearchDiam = $fSearchDiam * 2;
@@ -86,7 +67,8 @@
 				if ($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 from placex';
+				$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)';
@@ -96,76 +78,136 @@
 				$sSQL .= ' OR ST_DWithin('.$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);
-				}
+				$aPlace = chksql($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'];
+						$iMaxRank = 30;
+					}
+				}
+			}
+			
 			// Only street found? If it's in the US we can check TIGER data for nearest housenumber
-			if ($bIsInUnitedStates && $iMaxRank_orig >= 28 && $iPlaceID && ($aPlace['rank_search'] == 26 || $aPlace['rank_search'] == 27 )) 
+			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 ';
-				if (CONST_Debug) { $sSQL .= ', housenumber, ST_distance('.$sPointSQL.', centroid) as distance, st_y(centroid) as lat, st_x(centroid) as lon'; }
+				$sSQL = 'SELECT place_id,parent_place_id,30 as rank_search, ST_line_locate_point(linegeo,'.$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.', centroid, '.$fSearchDiam.')';
-				$sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', centroid) ASC limit 1';
+				$sSQL .= ' AND ST_DWithin('.$sPointSQL.', linegeo, '.$fSearchDiam.')';  //no centroid anymore in Tiger data, now we have lines
+				$sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', linegeo) ASC limit 1';
 
-
-				// print all house numbers in the parent (street)
 				if (CONST_Debug)
 				{
 					$sSQL = preg_replace('/limit 1/', 'limit 100', $sSQL);
 					var_dump($sSQL);
 
-					$aAllHouses = $this->oDB->getAll($sSQL);
+					$aAllHouses = chksql($this->oDB->getAll($sSQL));
 					foreach($aAllHouses as $i)
 					{
 						echo $i['housenumber'] . ' | ' . $i['distance'] * 1000 . ' | ' . $i['lat'] . ' | ' . $i['lon']. ' | '. "<br>\n";
 					}
 				}
 
-				$aPlaceTiger = $this->oDB->getRow($sSQL);
-				if (PEAR::IsError($aPlace))
-				{
-					failInternalError("Could not determine closest Tiger place.", $sSQL, $aPlaceTiger);
-				}
+				$aPlaceTiger = chksql($this->oDB->getRow($sSQL),
+				                      "Could not determine closest Tiger place.");
 				if ($aPlaceTiger)
 				{
-					if (CONST_Debug) var_dump('found Tiger place', $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 && $iParentPlaceID && !$bPlaceIsTiger)
+				if (($aPlace['rank_search'] > 28 || $bPlaceIsTiger || $bPlaceIsLine) && $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);
-				}
+				$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' : 'osm');
+						'type' => $bPlaceIsTiger ? 'tiger' : ($bPlaceIsLine ? 'interpolation' : 'osm'),
+						'fraction' => ($bPlaceIsTiger || $bPlaceIsLine) ? $fFraction : -1);
 		}
+		
 	}
 ?>