5 require_once(CONST_BasePath.'/lib/Result.php');
10 protected $iMaxRank = 28;
13 public function __construct(&$oDB)
19 public function setZoom($iZoom)
21 // Zoom to rank, this could probably be calculated but a lookup gives fine control
23 0 => 2, // Continent / Sea
35 12 => 18, // Town / Village
39 16 => 26, // Street, TODO: major street?
41 18 => 30, // or >, Building
42 19 => 30, // or >, Building
44 $this->iMaxRank = (isset($iZoom) && isset($aZoomRank[$iZoom]))?$aZoomRank[$iZoom]:28;
48 * Find the closest interpolation with the given search diameter.
50 * @param string $sPointSQL Reverse geocoding point as SQL
51 * @param float $fSearchDiam Search diameter
53 * @return Record of the interpolation or null.
55 protected function lookupInterpolation($sPointSQL, $fSearchDiam)
57 $sSQL = 'SELECT place_id, parent_place_id, 30 as rank_search,';
58 $sSQL .= ' ST_LineLocatePoint(linegeo,'.$sPointSQL.') as fraction,';
59 $sSQL .= ' startnumber, endnumber, interpolationtype,';
60 $sSQL .= ' ST_Distance(linegeo,'.$sPointSQL.') as distance';
61 $sSQL .= ' FROM location_property_osmline';
62 $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', linegeo, '.$fSearchDiam.')';
63 $sSQL .= ' and indexed_status = 0 and startnumber is not NULL ';
64 $sSQL .= ' ORDER BY distance ASC limit 1';
67 $this->oDB->getRow($sSQL),
68 'Could not determine closest housenumber on an osm interpolation line.'
72 protected function lookupPolygon($sPointSQL, $iMaxRank)
78 $sSQL = 'SELECT * FROM';
79 $sSQL .= '(select place_id,parent_place_id,rank_address,country_code, geometry';
80 $sSQL .= ' FROM placex';
81 $sSQL .= ' WHERE ST_GeometryType(geometry) in (\'ST_Polygon\', \'ST_MultiPolygon\')';
82 $sSQL .= ' AND rank_address <= ' .Min(25, $iMaxRank);
83 $sSQL .= ' AND geometry && '.$sPointSQL;
84 $sSQL .= ' AND type != \'postcode\' ';
85 $sSQL .= ' AND name is not null';
86 $sSQL .= ' AND indexed_status = 0 and linked_place_id is null';
87 $sSQL .= ' ORDER BY rank_address DESC LIMIT 50 ) as a';
88 $sSQL .= ' WHERE ST_CONTAINS(geometry, '.$sPointSQL.' )';
89 $sSQL .= ' ORDER BY rank_address DESC LIMIT 1';
92 $this->oDB->getRow($sSQL),
93 'Could not determine polygon containing the point.'
96 $iParentPlaceID = $aPoly['parent_place_id'];
97 $iRankAddress = $aPoly['rank_address'];
98 $iPlaceID = $aPoly['place_id'];
100 if ($iRankAddress != $iMaxRank) {
103 $sSQL .= ' SELECT place_id, rank_address,country_code, geometry,';
104 $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
105 $sSQL .= ' FROM placex';
106 $sSQL .= ' WHERE osm_type = \'N\'';
107 $sSQL .= ' AND rank_address > '.$iRankAddress;
108 $sSQL .= ' AND rank_address <= ' .Min(25, $iMaxRank);
109 $sSQL .= ' AND type != \'postcode\'';
110 $sSQL .= ' AND name IS NOT NULL ';
111 $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
112 // preselection through bbox
113 $sSQL .= ' AND (SELECT geometry FROM placex WHERE place_id = '.$iPlaceID.') && geometry';
114 $sSQL .= ' ORDER BY distance ASC,';
115 $sSQL .= ' rank_address DESC';
116 $sSQL .= ' limit 500) as a';
117 $sSQL .= ' WHERE ST_CONTAINS((SELECT geometry FROM placex WHERE place_id = '.$iPlaceID.'), geometry )';
118 $sSQL .= ' ORDER BY distance ASC, rank_address DESC';
121 if (CONST_Debug) var_dump($sSQL);
123 $this->oDB->getRow($sSQL),
124 'Could not determine place node.'
134 public function lookup($fLat, $fLon, $bDoInterpolation = true)
136 return $this->lookupPoint(
137 'ST_SetSRID(ST_Point('.$fLon.','.$fLat.'),4326)',
142 public function lookupPoint($sPointSQL, $bDoInterpolation = true)
145 $iMaxRank = $this->iMaxRank;
147 // Find the nearest point
148 $fSearchDiam = 0.006;
151 $fMaxAreaDistance = 1;
152 $bIsTigerStreet = false;
154 // try with interpolations before continuing
155 if ($bDoInterpolation && $iMaxRank >= 30 ) {
156 $aHouse = $this->lookupInterpolation($sPointSQL, $fSearchDiam/3);
159 $oResult = new Result($aHouse['place_id'], Result::TABLE_OSMLINE);
160 $oResult->iHouseNumber = closestHouseNumber($aHouse);
163 $iParentPlaceID = $aHouse['parent_place_id']; // the street
168 }// no interpolation found, continue search
170 // for POI or street level
171 if ($iMaxRank >= 26) {
172 $sSQL = 'select place_id,parent_place_id,rank_address,country_code,';
173 $sSQL .= 'CASE WHEN ST_GeometryType(geometry) in (\'ST_Polygon\',\'ST_MultiPolygon\') THEN ST_distance('.$sPointSQL.', centroid)';
174 $sSQL .= ' ELSE ST_distance('.$sPointSQL.', geometry) ';
175 $sSQL .= ' END as distance';
178 $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
181 if ($iMaxRank == 26) {
182 $sSQL .= ' rank_address = 26';
184 $sSQL .= ' rank_address >= 26';
186 $sSQL .= ' and (name is not null or housenumber is not null';
187 $sSQL .= ' or rank_address between 26 and 27)';
188 $sSQL .= ' and class not in (\'waterway\',\'railway\',\'tunnel\',\'bridge\',\'man_made\')';
189 $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
190 $sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') ';
191 $sSQL .= ' OR ST_DWithin('.$sPointSQL.', centroid, '.$fSearchDiam.'))';
192 $sSQL .= ' ORDER BY distance ASC limit 1';
193 if (CONST_Debug) var_dump($sSQL);
195 $this->oDB->getRow($sSQL),
196 'Could not determine closest place.'
200 $iPlaceID = $aPlace['place_id'];
201 $oResult = new Result($iPlaceID);
202 $iParentPlaceID = $aPlace['parent_place_id'];
203 // if street and maxrank > streetlevel
204 if (($aPlace['rank_address'] == 26 || $aPlace['rank_address'] == 27)&& $iMaxRank > 27) {
205 // find the closest object (up to a certain radius) of which the street is a parent of
206 $sSQL = ' select place_id,parent_place_id,rank_address,country_code,';
207 $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
211 $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, 0.001)';
212 $sSQL .= ' AND parent_place_id = '.$iPlaceID;
213 $sSQL .= ' and rank_address != 28';
214 $sSQL .= ' and (name is not null or housenumber is not null';
215 $sSQL .= ' or rank_address between 26 and 27)';
216 $sSQL .= ' and class not in (\'waterway\',\'railway\',\'tunnel\',\'bridge\',\'man_made\')';
217 $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
218 $sSQL .= ' ORDER BY distance ASC limit 1';
219 if (CONST_Debug) var_dump($sSQL);
221 $this->oDB->getRow($sSQL),
222 'Could not determine closest place.'
225 $iPlaceID = $aStreet['place_id'];
226 $oResult = new Result($iPlaceID);
227 $iParentPlaceID = $aStreet['parent_place_id'];
231 $aPlace = $this->lookupPolygon($sPointSQL, $iMaxRank);
233 $oResult = new Result($aPlace['place_id']);
236 // lower than street level ($iMaxRank < 26 )
238 $aPlace = $this->lookupPolygon($sPointSQL, $iMaxRank);
240 $oResult = new Result($aPlace['place_id']);