X-Git-Url: https://git.openstreetmap.org/nominatim.git/blobdiff_plain/6867b240d5d23c22ae04c57d65881d54d793da73..12168e3ca9421ab1d0195507919c26ce029ce155:/lib/ReverseGeocode.php

diff --git a/lib/ReverseGeocode.php b/lib/ReverseGeocode.php
index 1de0893c..27f8c89c 100644
--- a/lib/ReverseGeocode.php
+++ b/lib/ReverseGeocode.php
@@ -2,6 +2,8 @@
 
 namespace Nominatim;
 
+require_once(CONST_BasePath.'/lib/Result.php');
+
 class ReverseGeocode
 {
     protected $oDB;
@@ -53,38 +55,39 @@ class ReverseGeocode
     protected function lookupInterpolation($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';
+        $sSQL .= '  ST_LineLocatePoint(linegeo,'.$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 ';
-        $sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', linegeo) ASC limit 1';
+        $sSQL .= ' ORDER BY distance ASC limit 1';
 
         return chksql(
             $this->oDB->getRow($sSQL),
-            "Could not determine closest housenumber on an osm interpolation line."
+            '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)';
+        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;
-        $iPlaceID = null;
+        $oResult = null;
+        $aPlace = null;
         $fMaxAreaDistance = 1;
-        $bIsInUnitedStates = false;
-        $bPlaceIsTiger = false;
-        $bPlaceIsLine = false;
-        while (!$iPlaceID && $fSearchDiam < $fMaxAreaDistance) {
+        $bIsTigerStreet = false;
+        while ($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
@@ -99,16 +102,14 @@ class ReverseGeocode
             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'];
+                    $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;
@@ -118,106 +119,105 @@ class ReverseGeocode
                 $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;
-            $sSQL .= ' and (name is not null or housenumber is not null)';
+            $sSQL = 'select place_id,parent_place_id,rank_search,country_code,';
+            $sSQL .= '  ST_distance('.$sPointSQL.', geometry) as distance';
+            $sSQL .= ' FROM ';
+            if ($fSearchDiam < 0.01) {
+                $sSQL .= ' placex';
+                $sSQL .= '   WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
+                $sSQL .= '   AND';
+            } else {
+                $sSQL .= ' (SELECT * FROM placex ';
+                $sSQL .= '   WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
+                $sSQL .= '   LIMIT 1000) as p WHERE';
+            }
+            $sSQL .= ' rank_search != 28 and rank_search >= '.$iMaxRank;
+            $sSQL .= ' and (name is not null or housenumber is not null';
+            $sSQL .= '      or rank_search between 26 and 27)';
             $sSQL .= ' and class not in (\'waterway\',\'railway\',\'tunnel\',\'bridge\',\'man_made\')';
-            $sSQL .= ' and indexed_status = 0 ';
+            $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.'))';
-            $sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1';
+            $sSQL .= ' ORDER BY distance ASC limit 1';
             if (CONST_Debug) var_dump($sSQL);
             $aPlace = chksql(
                 $this->oDB->getRow($sSQL),
-                "Could not determine closest place."
+                'Could not determine closest place.'
             );
-            $iPlaceID = $aPlace['place_id'];
-            $iParentPlaceID = $aPlace['parent_place_id'];
-            $bIsInUnitedStates = ($aPlace['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 && (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 = $aPlaceLine['fraction'];
+            if ($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? 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";
-                }
-            }
+        // 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."
+                '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'];
+                $oResult = new Result($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 ($iPlaceID && $iMaxRank < 28) {
-            if (($aPlace['rank_search'] > 28 || $bPlaceIsTiger || $bPlaceIsLine) && $iParentPlaceID) {
+        if ($oResult !== null && $iMaxRank < 28) {
+            if ($aPlace['rank_search'] > 28 && $iParentPlaceID) {
                 $iPlaceID = $iParentPlaceID;
-                $bPlaceIsLine = false;
-                $bPlaceIsTiger = false;
+            } else {
+                $iPlaceID = $oResult->iId;
             }
-            $sSQL  = 'select address_place_id';
-            $sSQL .= ' FROM place_addressline';
-            $sSQL .= " WHERE place_id = $iPlaceID";
+            $sSQL  = 'select a.address_place_id';
+            $sSQL .= ' FROM place_addressline a, placex p';
+            $sSQL .= " WHERE a.place_id = $iPlaceID and a.address_place_id = p.place_id";
+            $sSQL .= '   AND p.linked_place_id is null';
             $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'];
+            $iPlaceID = chksql($this->oDB->getOne($sSQL), 'Could not get parent for place.');
+            if ($iPlaceID) {
+                $oResult = new Result($iPlaceID);
             }
         }
-        return array(
-                'place_id' => $iPlaceID,
-                'type' => $bPlaceIsTiger ? 'tiger' : ($bPlaceIsLine ? 'interpolation' : 'osm'),
-                'fraction' => ($bPlaceIsTiger || $bPlaceIsLine) ? $fFraction : -1
-               );
+
+        return $oResult;
     }
 }