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index on geometry of interpolation lines, and more improvements.
[nominatim.git] / lib / ReverseGeocode.php
diff --git a/lib/ReverseGeocode.php b/lib/ReverseGeocode.php
index cb8c0c6bcf84b7febe7b17a053b12ab1cfd9fe8f..05093af388cfaf36ddd192290f3d96409d8af7d3 100644 (file)
--- a/lib/ReverseGeocode.php
+++ b/lib/ReverseGeocode.php
@@ -9,7 +9,13 @@
 
                protected $aLangPrefOrder = array();
 
 
                protected $aLangPrefOrder = array();
 
-               protected $bShowAddressDetails = true;
+               protected $bIncludePolygonAsPoints = false;
+               protected $bIncludePolygonAsText = false;
+               protected $bIncludePolygonAsGeoJSON = false;
+               protected $bIncludePolygonAsKML = false;
+               protected $bIncludePolygonAsSVG = false;
+               protected $fPolygonSimplificationThreshold = 0.0;
+
 
                function ReverseGeocode(&$oDB)
                {
 
                function ReverseGeocode(&$oDB)
                {
@@ -21,11 +27,6 @@
                        $this->aLangPrefOrder = $aLangPref;
                }
 
                        $this->aLangPrefOrder = $aLangPref;
                }
 
-               function setIncludeAddressDetails($bAddressDetails = true)
-               {
-                       $this->bAddressDetails = $bAddressDetails;
-               }
-
                function setLatLon($fLat, $fLon)
                {
                        $this->fLat = (float)$fLat;
                function setLatLon($fLat, $fLon)
                {
                        $this->fLat = (float)$fLat;
@@ -65,16 +66,62 @@
                        $this->iMaxRank = (isset($iZoom) && isset($aZoomRank[$iZoom]))?$aZoomRank[$iZoom]:28;
                }
 
                        $this->iMaxRank = (isset($iZoom) && isset($aZoomRank[$iZoom]))?$aZoomRank[$iZoom]:28;
                }
 
+                               function setIncludePolygonAsPoints($b = true)
+               {
+                       $this->bIncludePolygonAsPoints = $b;
+               }
+
+               function getIncludePolygonAsPoints()
+               {
+                       return $this->bIncludePolygonAsPoints;
+               }
+
+               function setIncludePolygonAsText($b = true)
+               {
+                       $this->bIncludePolygonAsText = $b;
+               }
+
+               function getIncludePolygonAsText()
+               {
+                       return $this->bIncludePolygonAsText;
+               }
+
+               function setIncludePolygonAsGeoJSON($b = true)
+               {
+                       $this->bIncludePolygonAsGeoJSON = $b;
+               }
+
+               function setIncludePolygonAsKML($b = true)
+               {
+                       $this->bIncludePolygonAsKML = $b;
+               }
+
+               function setIncludePolygonAsSVG($b = true)
+               {
+                       $this->bIncludePolygonAsSVG = $b;
+               }
+
+               function setPolygonSimplificationThreshold($f)
+               {
+                       $this->fPolygonSimplificationThreshold = $f;
+               }
+
+               // returns { place_id =>, type => '(osm|tiger)' }
+               // fails if no place was found
                function lookup()
                {
                        $sPointSQL = 'ST_SetSRID(ST_Point('.$this->fLon.','.$this->fLat.'),4326)';
                        $iMaxRank = $this->iMaxRank;
                function lookup()
                {
                        $sPointSQL = 'ST_SetSRID(ST_Point('.$this->fLon.','.$this->fLat.'),4326)';
                        $iMaxRank = $this->iMaxRank;
+                       $iMaxRank_orig = $this->iMaxRank;
 
                        // Find the nearest point
                        $fSearchDiam = 0.0004;
                        $iPlaceID = null;
                        $aArea = false;
                        $fMaxAreaDistance = 1;
 
                        // Find the nearest point
                        $fSearchDiam = 0.0004;
                        $iPlaceID = null;
                        $aArea = false;
                        $fMaxAreaDistance = 1;
+                       $bIsInUnitedStates = false;
+                       $bPlaceIsTiger = false;
+                       $bPlaceIsLine = false;
                        while(!$iPlaceID && $fSearchDiam < $fMaxAreaDistance)
                        {
                                $fSearchDiam = $fSearchDiam * 2;
                        while(!$iPlaceID && $fSearchDiam < $fMaxAreaDistance)
                        {
                                $fSearchDiam = $fSearchDiam * 2;
@@ -90,11 +137,12 @@
                                if ($fSearchDiam > 0.008 && $iMaxRank > 22) $iMaxRank = 22;
                                if ($fSearchDiam > 0.001 && $iMaxRank > 26) $iMaxRank = 26;
 
                                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 = '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)';
                                $sSQL .= ' WHERE ST_DWithin('.$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 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 .= ' and indexed_status = 0 ';
                                $sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') ';
                                $sSQL .= ' OR ST_DWithin('.$sPointSQL.', centroid, '.$fSearchDiam.'))';
@@ -107,16 +155,130 @@
                                }
                                $iPlaceID = $aPlace['place_id'];
                                $iParentPlaceID = $aPlace['parent_place_id'];
                                }
                                $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 ($iMaxRank_orig >= 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 = $this->oDB->getAll($sSQL);
+                                       foreach($aAllHouses as $i)
+                                       {
+                                               echo $i['housenumber'] . ' | ' . $i['distance'] * 1000 . ' | ' . $i['lat'] . ' | ' . $i['lon']. ' | '. "<br>\n";
+                                       }
+                               }
+                               $aPlaceLine = $this->oDB->getRow($sSQL);
+                               if (PEAR::IsError($aPlaceLine))
+                               {
+                                       failInternalError("Could not determine closest housenumber on an osm interpolation line.", $sSQL, $aPlaceLine);
+                               }
+                               if ($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 = $this->oDB->getRow($sSQL);
+                                               if (PEAR::IsError($aDistancePlacex))
+                                               {
+                                                       failInternalError("Could not determine distance between searched point and placex house.", $sSQL, $aDistancePlacex);
+                                               }
+                                               $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 = $this->oDB->getRow($sSQL);
+                                               if (PEAR::IsError($aDistanceInterpolation))
+                                               {
+                                                       failInternalError("Could not determine distance between searched point and interpolated house.", $sSQL, $aDistanceInterpolation);
+                                               }
+                                               $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'];
+                                               }
+                                               // 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'];
+                                       }
+                               }
+                       }
+                       
+                       // Only street found? If it's in the US we can check TIGER data for nearest housenumber
+                       if (CONST_Use_US_Tiger_Data && $bIsInUnitedStates && $iMaxRank_orig >= 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 = $this->oDB->getAll($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($aPlaceTiger))
+                               {
+                                       failInternalError("Could not determine closest Tiger place.", $sSQL, $aPlaceTiger);
+                               }
+                               if ($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'];
+                               }
                        }
 
                        // The point we found might be too small - use the address to find what it is a child of
                        if ($iPlaceID && $iMaxRank < 28)
                        {
                        }
 
                        // 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 && $iParentPlaceID)
+                               if (($aPlace['rank_search'] > 28 || $bPlaceIsTiger || $bPlaceIsLine) && $iParentPlaceID)
                                {
                                        $iPlaceID = $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";
+                               $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 = $this->oDB->getOne($sSQL);
                                if (PEAR::IsError($iPlaceID))
                                {
                                $iPlaceID = $this->oDB->getOne($sSQL);
                                if (PEAR::IsError($iPlaceID))
                                {
@@ -127,13 +289,10 @@
                                        $iPlaceID = $aPlace['place_id'];
                                }
                        }
                                        $iPlaceID = $aPlace['place_id'];
                                }
                        }
-
-                       $oPlaceLookup = new PlaceLookup($this->oDB);
-                       $oPlaceLookup->setLanguagePreference($this->aLangPrefOrder);
-                       $oPlaceLookup->setIncludeAddressDetails($this->bAddressDetails);
-                       $oPlaceLookup->setPlaceId($iPlaceID);
-
-                       return $oPlaceLookup->lookup();
+                       return array('place_id' => $iPlaceID,
+                                               'type' => $bPlaceIsTiger ? 'tiger' : $bPlaceIsLine ? 'interpolation' : 'osm',
+                                               'fraction' => ($bPlaceIsTiger || $bPlaceIsLine) ? $fFraction : -1);
                }
                }
+               
        }
 ?>
        }
 ?>
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