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
52 * @param integer $iParentPlaceID Id of parent object
54 * @return Record of the interpolation or null.
56 protected function lookupInterpolation($sPointSQL, $fSearchDiam, $iParentPlaceID = null)
58 $sSQL = 'SELECT place_id, parent_place_id, 30 as rank_search,';
59 $sSQL .= ' ST_LineLocatePoint(linegeo,'.$sPointSQL.') as fraction,';
60 $sSQL .= ' startnumber, endnumber, interpolationtype,';
61 $sSQL .= ' ST_Distance(linegeo,'.$sPointSQL.') as distance';
62 $sSQL .= ' FROM location_property_osmline';
63 $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', linegeo, '.$fSearchDiam.')';
64 $sSQL .= ' and indexed_status = 0 and startnumber is not NULL ';
65 if (isset($iParentPlaceID)) {
66 $sSQL .= ' and parent_place_id = '.$iParentPlaceID;
68 $sSQL .= ' ORDER BY distance ASC limit 1';
71 $this->oDB->getRow($sSQL),
72 'Could not determine closest housenumber on an osm interpolation line.'
76 protected function polygonFunctions($sPointSQL, $iMaxRank)
78 // starts the nopolygonFound function if no polygon is found with the lookupPolygon function
82 $aPlace = $this->lookupPolygon($sPointSQL, $iMaxRank);
84 $oResult = new Result($aPlace['place_id']);
87 // if no polygon which contains the searchpoint is found,
88 // the noPolygonFound function searches in the country_osm_grid table for a polygon
90 $aPlace = $this->noPolygonFound($sPointSQL, $iMaxRank);
92 $oResult = new Result($aPlace['place_id']);
98 protected function noPolygonFound($sPointSQL, $iMaxRank)
100 // searches for polygon in table country_osm_grid which contains the searchpoint
101 // and searches for the nearest place node to the searchpoint in this polygon
102 $sSQL = 'SELECT country_code FROM country_osm_grid';
103 $sSQL .= ' WHERE ST_CONTAINS (geometry, '.$sPointSQL.') limit 1';
106 $this->oDB->getRow($sSQL),
107 'Could not determine country polygon containing the point.'
110 $sCountryCode = $aPoly['country_code'];
113 // look for place nodes with the given country code
114 $sSQL = 'SELECT place_id FROM';
115 $sSQL .= ' (SELECT place_id, rank_search,';
116 $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
117 $sSQL .= ' FROM placex';
118 $sSQL .= ' WHERE osm_type = \'N\'';
119 $sSQL .= ' AND country_code = \''.$sCountryCode.'\'';
120 $sSQL .= ' AND rank_search between 5 and ' .min(25, $iMaxRank);
121 $sSQL .= ' AND class = \'place\' AND type != \'postcode\'';
122 $sSQL .= ' AND name IS NOT NULL ';
123 $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
124 $sSQL .= ' AND ST_DWithin('.$sPointSQL.', geometry, 1.8)) p ';
125 $sSQL .= 'WHERE distance <= reverse_place_diameter(rank_search)';
126 $sSQL .= ' ORDER BY rank_search DESC, distance ASC';
129 if (CONST_Debug) var_dump($sSQL);
131 $this->oDB->getRow($sSQL),
132 'Could not determine place node.'
139 // still nothing, then return the country object
140 $sSQL = 'SELECT place_id, ST_distance('.$sPointSQL.', centroid) as distance';
141 $sSQL .= ' FROM placex';
142 $sSQL .= ' WHERE country_code = \''.$sCountryCode.'\'';
143 $sSQL .= ' AND rank_search = 4 AND rank_address = 4';
144 $sSQL .= ' AND class in (\'boundary\', \'place\')';
145 $sSQL .= ' ORDER BY distance ASC';
147 if (CONST_Debug) var_dump($sSQL);
149 $this->oDB->getRow($sSQL),
150 'Could not determine place node.'
158 protected function lookupPolygon($sPointSQL, $iMaxRank)
160 // searches for polygon where the searchpoint is within
161 // if a polygon is found, placenodes with a higher rank are searched inside the polygon
163 // polygon search begins at suburb-level
164 if ($iMaxRank > 25) $iMaxRank = 25;
165 // no polygon search over country-level
166 if ($iMaxRank < 5) $iMaxRank = 5;
167 // search for polygon
168 $sSQL = 'SELECT place_id, parent_place_id, rank_address, rank_search FROM';
169 $sSQL .= '(select place_id, parent_place_id, rank_address, rank_search, country_code, geometry';
170 $sSQL .= ' FROM placex';
171 $sSQL .= ' WHERE ST_GeometryType(geometry) in (\'ST_Polygon\', \'ST_MultiPolygon\')';
172 $sSQL .= ' AND rank_address Between 5 AND ' .$iMaxRank;
173 $sSQL .= ' AND geometry && '.$sPointSQL;
174 $sSQL .= ' AND type != \'postcode\' ';
175 $sSQL .= ' AND name is not null';
176 $sSQL .= ' AND indexed_status = 0 and linked_place_id is null';
177 $sSQL .= ' ORDER BY rank_address DESC LIMIT 50 ) as a';
178 $sSQL .= ' WHERE ST_CONTAINS(geometry, '.$sPointSQL.' )';
179 $sSQL .= ' ORDER BY rank_address DESC LIMIT 1';
182 $this->oDB->getRow($sSQL),
183 'Could not determine polygon containing the point.'
186 // if a polygon is found, search for placenodes begins ...
187 $iParentPlaceID = $aPoly['parent_place_id'];
188 $iRankAddress = $aPoly['rank_address'];
189 $iRankSearch = $aPoly['rank_search'];
190 $iPlaceID = $aPoly['place_id'];
192 if ($iRankAddress != $iMaxRank) {
193 $sSQL = 'SELECT place_id FROM ';
194 $sSQL .= '(SELECT place_id, rank_search, country_code, geometry,';
195 $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
196 $sSQL .= ' FROM placex';
197 $sSQL .= ' WHERE osm_type = \'N\'';
198 // using rank_search because of a better differentiation
199 // for place nodes at rank_address 16
200 $sSQL .= ' AND rank_search > '.$iRankSearch;
201 $sSQL .= ' AND rank_search <= '.$iMaxRank;
202 $sSQL .= ' AND class = \'place\'';
203 $sSQL .= ' AND type != \'postcode\'';
204 $sSQL .= ' AND name IS NOT NULL ';
205 $sSQL .= ' AND indexed_status = 0 AND linked_place_id is null';
206 $sSQL .= ' AND ST_DWithin('.$sPointSQL.', geometry, reverse_place_diameter('.$iRankSearch.'::smallint))';
207 $sSQL .= ' ORDER BY distance ASC,';
208 $sSQL .= ' rank_address DESC';
209 $sSQL .= ' limit 500) as a';
210 $sSQL .= ' WHERE ST_CONTAINS((SELECT geometry FROM placex WHERE place_id = '.$iPlaceID.'), geometry )';
211 $sSQL .= ' AND distance <= reverse_place_diameter(rank_search)';
212 $sSQL .= ' ORDER BY distance ASC, rank_search DESC';
215 if (CONST_Debug) var_dump($sSQL);
217 $this->oDB->getRow($sSQL),
218 'Could not determine place node.'
229 public function lookup($fLat, $fLon, $bDoInterpolation = true)
231 return $this->lookupPoint(
232 'ST_SetSRID(ST_Point('.$fLon.','.$fLat.'),4326)',
237 public function lookupPoint($sPointSQL, $bDoInterpolation = true)
239 // starts if the search is on POI or street level,
240 // searches for the nearest POI or street,
241 // if a street is found and a POI is searched for,
242 // the nearest POI which the found street is a parent of is choosen.
243 $iMaxRank = $this->iMaxRank;
245 // Find the nearest point
246 $fSearchDiam = 0.006;
249 $fMaxAreaDistance = 1;
250 $bIsTigerStreet = false;
252 // for POI or street level
253 if ($iMaxRank >= 26) {
254 $sSQL = 'select place_id,parent_place_id,rank_address,country_code,';
255 $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
258 $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
261 if ($iMaxRank == 26) {
262 $sSQL .= ' rank_address = 26';
264 $sSQL .= ' rank_address between 26 and '.$iMaxRank;
266 $sSQL .= ' and (name is not null or housenumber is not null';
267 $sSQL .= ' or rank_address between 26 and 27)';
268 $sSQL .= ' and class not in (\'railway\',\'tunnel\',\'bridge\',\'man_made\')';
269 $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
270 $sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') ';
271 $sSQL .= ' OR ST_DWithin('.$sPointSQL.', centroid, '.$fSearchDiam.'))';
272 $sSQL .= ' ORDER BY distance ASC limit 1';
273 if (CONST_Debug) var_dump($sSQL);
275 $this->oDB->getRow($sSQL),
276 'Could not determine closest place.'
280 $iDistance = $aPlace['distance'];
281 $iPlaceID = $aPlace['place_id'];
282 $oResult = new Result($iPlaceID);
283 $iParentPlaceID = $aPlace['parent_place_id'];
285 if ($bDoInterpolation && $iMaxRank >= 30) {
286 if ($aPlace['rank_address'] <=27) {
289 $aHouse = $this->lookupInterpolation($sPointSQL, $iDistance);
292 $oResult = new Result($aHouse['place_id'], Result::TABLE_OSMLINE);
293 $oResult->iHouseNumber = closestHouseNumber($aHouse);
297 // if street and maxrank > streetlevel
298 if (($aPlace['rank_address'] <=27)&& $iMaxRank > 27) {
299 // find the closest object (up to a certain radius) of which the street is a parent of
300 $sSQL = ' select place_id,parent_place_id,rank_address,country_code,';
301 $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
305 $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, 0.001)';
306 $sSQL .= ' AND parent_place_id = '.$iPlaceID;
307 $sSQL .= ' and rank_address != 28';
308 $sSQL .= ' and (name is not null or housenumber is not null)';
309 $sSQL .= ' and class not in (\'railway\',\'tunnel\',\'bridge\',\'man_made\')';
310 $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
311 $sSQL .= ' ORDER BY distance ASC limit 1';
312 if (CONST_Debug) var_dump($sSQL);
314 $this->oDB->getRow($sSQL),
315 'Could not determine closest place.'
318 $iDistance = $aStreet['distance'];
319 $iPlaceID = $aStreet['place_id'];
320 $oResult = new Result($iPlaceID);
321 $iParentPlaceID = $aStreet['parent_place_id'];
323 if ($bDoInterpolation && $iMaxRank >= 30) {
324 $aHouse = $this->lookupInterpolation($sPointSQL, $iDistance, $iParentPlaceID);
327 $oResult = new Result($aHouse['place_id'], Result::TABLE_OSMLINE);
328 $oResult->iHouseNumber = closestHouseNumber($aHouse);
334 // In the US we can check TIGER data for nearest housenumber
335 if (CONST_Use_US_Tiger_Data && $aPlace['country_code'] == 'us' && $this->iMaxRank >= 28) {
336 $fSearchDiam = $aPlace['rank_address'] > 28 ? $aPlace['distance'] : 0.001;
337 $sSQL = 'SELECT place_id,parent_place_id,30 as rank_search,';
338 $sSQL .= 'ST_LineLocatePoint(linegeo,'.$sPointSQL.') as fraction,';
339 $sSQL .= 'ST_distance('.$sPointSQL.', linegeo) as distance,';
340 $sSQL .= 'startnumber,endnumber,interpolationtype';
341 $sSQL .= ' FROM location_property_tiger WHERE parent_place_id = '.$oResult->iId;
342 $sSQL .= ' AND ST_DWithin('.$sPointSQL.', linegeo, '.$fSearchDiam.')';
343 $sSQL .= ' ORDER BY distance ASC limit 1';
344 if (CONST_Debug) var_dump($sSQL);
345 $aPlaceTiger = chksql(
346 $this->oDB->getRow($sSQL),
347 'Could not determine closest Tiger place.'
350 if (CONST_Debug) var_dump('found Tiger housenumber', $aPlaceTiger);
351 $aPlace = $aPlaceTiger;
352 $oResult = new Result($aPlace['place_id'], Result::TABLE_TIGER);
353 $oResult->iHouseNumber = closestHouseNumber($aPlaceTiger);
356 // if no POI or street is found ...
358 $oResult = $this->PolygonFunctions($sPointSQL, $iMaxRank);
360 // lower than street level ($iMaxRank < 26 )
362 $oResult = $this->PolygonFunctions($sPointSQL, $iMaxRank);