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 public function lookup($fLat, $fLon, $bDoInterpolation = true)
74 return $this->lookupPoint(
75 'ST_SetSRID(ST_Point('.$fLon.','.$fLat.'),4326)',
80 public function lookupPoint($sPointSQL, $bDoInterpolation = true)
82 $iMaxRank = $this->iMaxRank;
84 // Find the nearest point
85 $fSearchDiam = 0.0004;
88 $fMaxAreaDistance = 1;
89 $bIsTigerStreet = false;
90 while ($oResult === null && $fSearchDiam < $fMaxAreaDistance) {
91 $fSearchDiam = $fSearchDiam * 2;
93 // If we have to expand the search area by a large amount then we need a larger feature
94 // then there is a limit to how small the feature should be
95 if ($fSearchDiam > 2 && $iMaxRank > 4) $iMaxRank = 4;
96 if ($fSearchDiam > 1 && $iMaxRank > 9) $iMaxRank = 8;
97 if ($fSearchDiam > 0.8 && $iMaxRank > 10) $iMaxRank = 10;
98 if ($fSearchDiam > 0.6 && $iMaxRank > 12) $iMaxRank = 12;
99 if ($fSearchDiam > 0.2 && $iMaxRank > 17) $iMaxRank = 17;
100 if ($fSearchDiam > 0.1 && $iMaxRank > 18) $iMaxRank = 18;
101 if ($fSearchDiam > 0.008 && $iMaxRank > 22) $iMaxRank = 22;
102 if ($fSearchDiam > 0.001 && $iMaxRank > 26) {
103 // try with interpolations before continuing
104 if ($bDoInterpolation) {
105 $aHouse = $this->lookupInterpolation($sPointSQL, $fSearchDiam/2);
108 $oResult = new Result($aHouse['place_id'], Result::TABLE_OSMLINE);
109 $oResult->iHouseNumber = closestHouseNumber($aHouse);
112 $iParentPlaceID = $aHouse['parent_place_id']; // the street
118 // no interpolation found, continue search
122 $sSQL = 'select place_id,parent_place_id,rank_search,country_code,';
123 $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
124 $sSQL .= ' FROM placex';
125 $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
126 $sSQL .= ' and rank_search != 28 and rank_search >= '.$iMaxRank;
127 $sSQL .= ' and (name is not null or housenumber is not null)';
128 $sSQL .= ' and class not in (\'waterway\',\'railway\',\'tunnel\',\'bridge\',\'man_made\')';
129 $sSQL .= ' and indexed_status = 0 ';
130 $sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') ';
131 $sSQL .= ' OR ST_DWithin('.$sPointSQL.', centroid, '.$fSearchDiam.'))';
132 $sSQL .= ' ORDER BY distance ASC limit 1';
133 if (CONST_Debug) var_dump($sSQL);
135 $this->oDB->getRow($sSQL),
136 "Could not determine closest place."
139 $oResult = new Result($aPlace['place_id']);
140 $iParentPlaceID = $aPlace['parent_place_id'];
141 if ($bDoInterpolation) {
142 if ($aPlace['rank_search'] == 26 || $aPlace['rank_search'] == 27) {
143 $bIsTigerStreet = ($aPlace['country_code'] == 'us');
144 } elseif ($aPlace['rank_search'] == 30) {
145 // If a house was found, make sure there isn't an
146 // interpolation line that is closer.
147 $aHouse = $this->lookupInterpolation(
151 if ($aHouse && $aPlace['distance'] < $aHouse['distance']) {
152 $oResult = new Result(
154 Result::TABLE_OSMLINE
156 $oResult->iHouseNumber = closestHouseNumber($aHouse);
159 $iParentPlaceID = $aHouse['parent_place_id'];
166 // Only street found? In the US we can check TIGER data for nearest housenumber
167 if (CONST_Use_US_Tiger_Data && $bIsTigerStreet && $this->iMaxRank >= 28) {
168 $fSearchDiam = $aPlace['rank_search'] > 28 ? $aPlace['distance'] : 0.001;
169 $sSQL = 'SELECT place_id,parent_place_id,30 as rank_search,';
170 $sSQL .= 'ST_LineLocatePoint(linegeo,'.$sPointSQL.') as fraction,';
171 $sSQL .= 'ST_distance('.$sPointSQL.', linegeo) as distance,';
172 $sSQL .= 'startnumber,endnumber,interpolationtype';
173 $sSQL .= ' FROM location_property_tiger WHERE parent_place_id = '.$oResult->iId;
174 $sSQL .= ' AND ST_DWithin('.$sPointSQL.', linegeo, '.$fSearchDiam.')';
175 $sSQL .= ' ORDER BY distance ASC limit 1';
177 if (CONST_Debug) var_dump($sSQL);
179 $aPlaceTiger = chksql(
180 $this->oDB->getRow($sSQL),
181 "Could not determine closest Tiger place."
184 if (CONST_Debug) var_dump('found Tiger housenumber', $aPlaceTiger);
185 $aPlace = $aPlaceTiger;
186 $oResult = new Result($aPlace['place_id'], Result::TABLE_TIGER);
187 $oResult->iHouseNumber = closestHouseNumber($aPlaceTiger);
188 $iParentPlaceID = $aPlace['parent_place_id'];
193 // The point we found might be too small - use the address to find what it is a child of
194 if ($oResult !== null && $iMaxRank < 28) {
195 if ($aPlace['rank_search'] > 28 && $iParentPlaceID) {
196 $iPlaceID = $iParentPlaceID;
198 $iPlaceID = $oResult->iId;
200 $sSQL = 'select address_place_id';
201 $sSQL .= ' FROM place_addressline';
202 $sSQL .= " WHERE place_id = $iPlaceID";
203 $sSQL .= " ORDER BY abs(cached_rank_address - $iMaxRank) asc,cached_rank_address desc,isaddress desc,distance desc";
205 $iPlaceID = chksql($this->oDB->getOne($sSQL), "Could not get parent for place.");
207 $oResult = new Result($iPlaceID);