]> git.openstreetmap.org Git - nominatim.git/commitdiff
handle pure lat,lon search by passing to reverse geocoding and returning first match...
authorBrian Quinion <openstreetmap@brian.quinion.co.uk>
Tue, 3 May 2011 17:34:51 +0000 (17:34 +0000)
committerBrian Quinion <openstreetmap@brian.quinion.co.uk>
Tue, 3 May 2011 17:34:51 +0000 (17:34 +0000)
lib/lib.php
website/search.php

index 7f56a1de68f5f339eec7064b3397cb9350c2f501..20b1f8ce260418ed8f48f9b00d4fc42dd6c2c5f5 100644 (file)
                $aSimilar = $oDB->getAll($sSQL);
                return $aSimilar;
        }
+
+       function geocodeReverse($fLat, $fLon, $iZoom=18)
+       {
+               $oDB =& getDB();
+
+               $sPointSQL = "ST_SetSRID(ST_Point($fLon,$fLat),4326)";
+
+               // 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
+                       );
+               $iMaxRank = isset($aZoomRank[$iZoom])?$aZoomRank[$iZoom]:28;
+
+               // Find the nearest point
+               $fSearchDiam = 0.0001;
+               $iPlaceID = null;
+               $aArea = false;
+               $fMaxAreaDistance = 1;
+               while(!$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 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\')';
+                       $sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') ';
+                       $sSQL .= ' OR ST_DWithin('.$sPointSQL.', ST_Centroid(geometry), '.$fSearchDiam.'))';
+                       $sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1';
+//var_dump($sSQL);
+                       $aPlace = $oDB->getRow($sSQL);
+                       $iPlaceID = $aPlace['place_id'];
+                       if (PEAR::IsError($iPlaceID))
+                       {
+                               var_Dump($sSQL, $iPlaceID); 
+                               exit;
+                       }
+               }
+
+               // The point we found might be too small - use the address to find what it is a child of
+               if ($iPlaceID)
+               {
+                       $sSQL = "select address_place_id from place_addressline where cached_rank_address <= $iMaxRank and place_id = $iPlaceID order by cached_rank_address desc,isaddress desc,distance desc limit 1";
+                       $iPlaceID = $oDB->getOne($sSQL);
+                       if (PEAR::IsError($iPlaceID))
+                       {
+                               var_Dump($sSQL, $iPlaceID); 
+                               exit;
+                       }
+
+                       if ($iPlaceID && $aPlace['place_id'] && $iMaxRank < 28)
+                       {
+                               $sSQL = "select address_place_id from place_addressline where cached_rank_address <= $iMaxRank and place_id = ".$aPlace['place_id']." order by cached_rank_address desc,isaddress desc,distance desc";
+                               $iPlaceID = $oDB->getOne($sSQL);
+                               if (PEAR::IsError($iPlaceID))
+                               {
+                                       var_Dump($sSQL, $iPlaceID); 
+                                       exit;
+                               }
+                       }
+                       if (!$iPlaceID)
+                       {
+                               $iPlaceID = $aPlace['place_id'];
+                       }
+               }
+
+               return $iPlaceID;
+       }
index cd52d227acf11f6601b5cfdd96fc4be02878229d..ba7df0f05838ec1c390250aad8f17bfd0fc0a580 100755 (executable)
                        $_GET['nearlon'] = ($aData[6]=='E'?1:-1) * ($aData[4] + $aData[5]/60);
                        $sQuery = trim(str_replace($aData[0], ' ', $sQuery));
                }
-               elseif (preg_match('/(\\[|\\b)(-?[0-9]+[0-9.]*)[, ]+(-?[0-9]+[0-9.]*)(\\]|\\b])/', $sQuery, $aData))
+               elseif (preg_match('/(\\[|\\b)(-?[0-9]+[0-9.]*)[, ]+(-?[0-9]+[0-9.]*)(\\]|\\b)/', $sQuery, $aData))
                {
                        $_GET['nearlat'] = $aData[2];
                        $_GET['nearlon'] = $aData[3];
 
                if ($sQuery)
                {
-
                        // Start with a blank search
                        $aSearches = array(
                                array('iSearchRank' => 0, 'iNamePhrase' => -1, 'sCountryCode' => false, 'aName'=>array(), 'aAddress'=>array(), 
                                        $aSearchResults = $oDB->getAll($sSQL);
 //var_dump($sSQL,$aSearchResults);exit;
 
+                                       if (PEAR::IsError($aSearchResults))
+                                       {
+                                               var_dump($sSQL, $aSearchResults);                                       
+                                               exit;
+                                       }
+                               }
+                       } // end if ($sQuery)
+                       else
+                       {
+                               if (isset($_GET['nearlat']) && trim($_GET['nearlat'])!=='' && isset($_GET['nearlon']) && trim($_GET['nearlon']) !== '')
+                               {
+                                       $iPlaceID = geocodeReverse($_GET['nearlat'], $_GET['nearlon']);
+                                       $aResultPlaceIDs = array($iPlaceID);
+
+                                       // TODO: this needs refactoring!
+
+                                       // Get the details for display (is this a redundant extra step?)
+                                       $sPlaceIDs = join(',',$aResultPlaceIDs);
+                                       $sOrderSQL = 'CASE ';
+                                       foreach(array_keys($aResultPlaceIDs) as $iOrder => $iPlaceID)
+                                       {
+                                               $sOrderSQL .= 'when min(place_id) = '.$iPlaceID.' then '.$iOrder.' ';
+                                       }
+                                       $sOrderSQL .= ' ELSE 10000000 END';
+                                       $sSQL = "select osm_type,osm_id,class,type,admin_level,rank_search,rank_address,min(place_id) as place_id,country_code,";
+                                       $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
+                                       $sSQL .= "get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
+                                       $sSQL .= "get_name_by_language(name, ARRAY['ref']) as ref,";
+                                       $sSQL .= "avg(ST_X(ST_Centroid(geometry))) as lon,avg(ST_Y(ST_Centroid(geometry))) as lat, ";
+//                                     $sSQL .= $sOrderSQL." as porder, ";
+                                       $sSQL .= "coalesce(importance,0.9-(rank_search::float/30)) as importance ";
+                                       $sSQL .= "from placex where place_id in ($sPlaceIDs) ";
+                                       $sSQL .= "and placex.rank_address between $iMinAddressRank and $iMaxAddressRank ";
+                                       $sSQL .= "group by osm_type,osm_id,class,type,admin_level,rank_search,rank_address,country_code,importance";
+                                       if (!$bDeDupe) $sSQL .= ",place_id";
+                                       $sSQL .= ",get_address_by_language(place_id, $sLanguagePrefArraySQL) ";
+                                       $sSQL .= ",get_name_by_language(name, $sLanguagePrefArraySQL) ";
+                                       $sSQL .= ",get_name_by_language(name, ARRAY['ref']) ";
+                                       $sSQL .= " union ";
+                                       $sSQL .= "select 'T' as osm_type,place_id as osm_id,'place' as class,'house' as type,null as admin_level,30 as rank_search,30 as rank_address,min(place_id) as place_id,'us' as country_code,";
+                                       $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
+                                       $sSQL .= "null as placename,";
+                                       $sSQL .= "null as ref,";
+                                       $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
+//                                     $sSQL .= $sOrderSQL." as porder, ";
+                                       $sSQL .= "-0.15 as importance ";
+                                       $sSQL .= "from location_property_tiger where place_id in ($sPlaceIDs) ";
+                                       $sSQL .= "and 30 between $iMinAddressRank and $iMaxAddressRank ";
+                                       $sSQL .= "group by place_id";
+                                       if (!$bDeDupe) $sSQL .= ",place_id";
+                                       $sSQL .= " union ";
+                                       $sSQL .= "select 'L' as osm_type,place_id as osm_id,'place' as class,'house' as type,null as admin_level,30 as rank_search,30 as rank_address,min(place_id) as place_id,'us' as country_code,";
+                                       $sSQL .= "get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
+                                       $sSQL .= "null as placename,";
+                                       $sSQL .= "null as ref,";
+                                       $sSQL .= "avg(ST_X(centroid)) as lon,avg(ST_Y(centroid)) as lat, ";
+//                                     $sSQL .= $sOrderSQL." as porder, ";
+                                       $sSQL .= "-0.10 as importance ";
+                                       $sSQL .= "from location_property_aux where place_id in ($sPlaceIDs) ";
+                                       $sSQL .= "and 30 between $iMinAddressRank and $iMaxAddressRank ";
+                                       $sSQL .= "group by place_id";
+                                       if (!$bDeDupe) $sSQL .= ",place_id";
+                                       $sSQL .= ",get_address_by_language(place_id, $sLanguagePrefArraySQL) ";
+                                       $sSQL .= "order by importance desc";
+//                                     $sSQL .= "order by rank_search,rank_address,porder asc";
+                                       if (CONST_Debug) var_dump('<hr>',$sSQL);
+                                       $aSearchResults = $oDB->getAll($sSQL);
+//var_dump($sSQL,$aSearchResults);exit;
+
                                        if (PEAR::IsError($aSearchResults))
                                        {
                                                var_dump($sSQL, $aSearchResults);                                       
        $sSearchResult = '';
        if (!sizeof($aSearchResults) && isset($_GET['q']) && $_GET['q'])
        {
+echo "here";
+exit;
                $sSearchResult = 'No Results Found';
        }
 //var_Dump($aSearchResults);