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
81 $aPlace = $this->lookupPolygon($sPointSQL, $iMaxRank);
83 $oResult = new Result($aPlace['place_id']);
84 // if no polygon which contains the searchpoint is found,
85 // the noPolygonFound function searches in the country_osm_grid table for a polygon
86 } elseif (!$aPlace && $iMaxRank > 4) {
87 $aPlace = $this->noPolygonFound($sPointSQL, $iMaxRank);
89 $oResult = new Result($aPlace['place_id']);
95 protected function noPolygonFound($sPointSQL, $iMaxRank)
97 // searches for polygon in table country_osm_grid which contains the searchpoint
98 // and searches for the nearest place node to the searchpoint in this polygon
99 $sSQL = 'SELECT country_code FROM country_osm_grid';
100 $sSQL .= ' WHERE ST_CONTAINS (geometry, '.$sPointSQL.') limit 1';
103 $this->oDB->getRow($sSQL),
104 'Could not determine polygon containing the point.'
107 $sCountryCode = $aPoly['country_code'];
109 $sSQL = 'SELECT place_id, ST_distance('.$sPointSQL.', geometry) as distance';
110 $sSQL .= ' FROM placex';
111 $sSQL .= ' WHERE osm_type = \'N\'';
112 $sSQL .= ' AND country_code = \''.$sCountryCode.'\'';
113 $sSQL .= ' AND rank_address > 0';
114 $sSQL .= ' AND rank_address <= ' .min(25, $iMaxRank);
115 $sSQL .= ' AND type != \'postcode\'';
116 $sSQL .= ' AND name IS NOT NULL ';
117 $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
118 $sSQL .= ' AND ST_DWithin('.$sPointSQL.', geometry, 1.0)';
119 $sSQL .= ' ORDER BY distance ASC, rank_address DESC';
122 if (CONST_Debug) var_dump($sSQL);
124 $this->oDB->getRow($sSQL),
125 'Could not determine place node.'
133 protected function lookupPolygon($sPointSQL, $iMaxRank)
135 // searches for polygon where the searchpoint is within
136 // if a polygon is found, placenodes with a higher rank are searched inside the polygon
138 // polygon search begins at suburb-level
139 if ($iMaxRank > 25) $iMaxRank = 25;
140 // no polygon search over country-level
141 if ($iMaxRank < 4) $iMaxRank = 4;
142 // search for polygon
143 $sSQL = 'SELECT place_id, parent_place_id, rank_address, rank_search FROM';
144 $sSQL .= '(select place_id, parent_place_id, rank_address, rank_search, country_code, geometry';
145 $sSQL .= ' FROM placex';
146 $sSQL .= ' WHERE ST_GeometryType(geometry) in (\'ST_Polygon\', \'ST_MultiPolygon\')';
147 $sSQL .= ' AND rank_address Between 4 AND ' .$iMaxRank;
148 $sSQL .= ' AND geometry && '.$sPointSQL;
149 $sSQL .= ' AND type != \'postcode\' ';
150 $sSQL .= ' AND name is not null';
151 $sSQL .= ' AND indexed_status = 0 and linked_place_id is null';
152 $sSQL .= ' ORDER BY rank_address DESC LIMIT 50 ) as a';
153 $sSQL .= ' WHERE ST_CONTAINS(geometry, '.$sPointSQL.' )';
154 $sSQL .= ' ORDER BY rank_address DESC LIMIT 1';
157 $this->oDB->getRow($sSQL),
158 'Could not determine polygon containing the point.'
161 // if a polygon is found, search for placenodes begins ...
162 $iParentPlaceID = $aPoly['parent_place_id'];
163 $iRankAddress = $aPoly['rank_address'];
164 $iRankSearch = $aPoly['rank_search'];
165 $iPlaceID = $aPoly['place_id'];
167 if ($iRankAddress != $iMaxRank) {
168 //search diameter for the place node search
169 if ($iMaxRank <= 4) {
171 } elseif ($iMaxRank <= 8) {
173 } elseif ($iMaxRank <= 10) {
175 } elseif ($iMaxRank <= 12) {
177 } elseif ($iMaxRank <= 17) {
179 } elseif ($iMaxRank <= 18) {
181 } elseif ($iMaxRank <= 25) {
185 $sSQL = 'SELECT place_id';
187 $sSQL .= ' SELECT place_id, rank_address,country_code, geometry,';
188 $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
189 $sSQL .= ' FROM placex';
190 $sSQL .= ' WHERE osm_type = \'N\'';
191 if ($iRankAddress = 16) {
192 // using rank_search because of a better differentiation for place nodes at rank_address 16
193 $sSQL .= ' AND rank_search > '.$iRankSearch;
194 $sSQL .= ' AND rank_search <= ' .$iMaxRank;
195 $sSQL .= ' AND class = \'place\'';
197 $sSQL .= ' AND rank_address > '.$iRankAddress;
198 $sSQL .= ' AND rank_address <= ' .$iMaxRank;
200 $sSQL .= ' AND ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
201 $sSQL .= ' AND type != \'postcode\'';
202 $sSQL .= ' AND name IS NOT NULL ';
203 $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
204 // preselection through bbox
205 $sSQL .= ' AND (SELECT geometry FROM placex WHERE place_id = '.$iPlaceID.') && geometry';
206 $sSQL .= ' ORDER BY distance ASC,';
207 $sSQL .= ' rank_address DESC';
208 $sSQL .= ' limit 500) as a';
209 $sSQL .= ' WHERE ST_CONTAINS((SELECT geometry FROM placex WHERE place_id = '.$iPlaceID.'), geometry )';
210 $sSQL .= ' ORDER BY distance ASC, rank_address DESC';
213 if (CONST_Debug) var_dump($sSQL);
215 $this->oDB->getRow($sSQL),
216 'Could not determine place node.'
227 public function lookup($fLat, $fLon, $bDoInterpolation = true)
229 return $this->lookupPoint(
230 'ST_SetSRID(ST_Point('.$fLon.','.$fLat.'),4326)',
235 public function lookupPoint($sPointSQL, $bDoInterpolation = true)
237 // starts if the search is on POI or street level,
238 // searches for the nearest POI or street,
239 // if a street is found and a POI is searched for,
240 // the nearest POI which the found street is a parent of is choosen.
241 $iMaxRank = $this->iMaxRank;
243 // Find the nearest point
244 $fSearchDiam = 0.006;
247 $fMaxAreaDistance = 1;
248 $bIsTigerStreet = false;
250 // for POI or street level
251 if ($iMaxRank >= 26) {
252 $sSQL = 'select place_id,parent_place_id,rank_address,country_code,';
253 $sSQL .= 'CASE WHEN ST_GeometryType(geometry) in (\'ST_Polygon\',\'ST_MultiPolygon\') THEN ST_distance('.$sPointSQL.', centroid)';
254 $sSQL .= ' ELSE ST_distance('.$sPointSQL.', geometry) ';
255 $sSQL .= ' END 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.'
281 $iDistance = $aPlace['distance'];
282 $iPlaceID = $aPlace['place_id'];
283 $oResult = new Result($iPlaceID);
284 $iParentPlaceID = $aPlace['parent_place_id'];
286 if ($bDoInterpolation && $iMaxRank >= 30) {
287 if ($aPlace['rank_address'] <=27) {
290 $aHouse = $this->lookupInterpolation($sPointSQL, $iDistance);
293 $oResult = new Result($aHouse['place_id'], Result::TABLE_OSMLINE);
294 $oResult->iHouseNumber = closestHouseNumber($aHouse);
298 // if street and maxrank > streetlevel
299 if (($aPlace['rank_address'] <=27)&& $iMaxRank > 27) {
300 // find the closest object (up to a certain radius) of which the street is a parent of
301 $sSQL = ' select place_id,parent_place_id,rank_address,country_code,';
302 $sSQL .= ' ST_distance('.$sPointSQL.', geometry) as distance';
306 $sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, 0.001)';
307 $sSQL .= ' AND parent_place_id = '.$iPlaceID;
308 $sSQL .= ' and rank_address != 28';
309 $sSQL .= ' and (name is not null or housenumber is not null)';
310 $sSQL .= ' and class not in (\'railway\',\'tunnel\',\'bridge\',\'man_made\')';
311 $sSQL .= ' and indexed_status = 0 and linked_place_id is null';
312 $sSQL .= ' ORDER BY distance ASC limit 1';
313 if (CONST_Debug) var_dump($sSQL);
315 $this->oDB->getRow($sSQL),
316 'Could not determine closest place.'
319 $iDistance = $aStreet['distance'];
320 $iPlaceID = $aStreet['place_id'];
321 $oResult = new Result($iPlaceID);
322 $iParentPlaceID = $aStreet['parent_place_id'];
324 if ($bDoInterpolation && $iMaxRank >= 30) {
325 $aHouse = $this->lookupInterpolation($sPointSQL, $iDistance, $iParentPlaceID);
328 $oResult = new Result($aHouse['place_id'], Result::TABLE_OSMLINE);
329 $oResult->iHouseNumber = closestHouseNumber($aHouse);
335 // In the US we can check TIGER data for nearest housenumber
336 if (CONST_Use_US_Tiger_Data && $aPlace['country_code'] == 'us' && $this->iMaxRank >= 28) {
337 $fSearchDiam = $aPlace['rank_address'] > 28 ? $aPlace['distance'] : 0.001;
338 $sSQL = 'SELECT place_id,parent_place_id,30 as rank_search,';
339 $sSQL .= 'ST_LineLocatePoint(linegeo,'.$sPointSQL.') as fraction,';
340 $sSQL .= 'ST_distance('.$sPointSQL.', linegeo) as distance,';
341 $sSQL .= 'startnumber,endnumber,interpolationtype';
342 $sSQL .= ' FROM location_property_tiger WHERE parent_place_id = '.$oResult->iId;
343 $sSQL .= ' AND ST_DWithin('.$sPointSQL.', linegeo, '.$fSearchDiam.')';
344 $sSQL .= ' ORDER BY distance ASC limit 1';
345 if (CONST_Debug) var_dump($sSQL);
346 $aPlaceTiger = chksql(
347 $this->oDB->getRow($sSQL),
348 'Could not determine closest Tiger place.'
351 if (CONST_Debug) var_dump('found Tiger housenumber', $aPlaceTiger);
352 $aPlace = $aPlaceTiger;
353 $oResult = new Result($aPlace['place_id'], Result::TABLE_TIGER);
354 $oResult->iHouseNumber = closestHouseNumber($aPlaceTiger);
357 // if no POI or street is found ...
359 $oResult = $this->PolygonFunctions($sPointSQL, $iMaxRank);
361 // lower than street level ($iMaxRank < 26 )
363 $oResult = $this->PolygonFunctions($sPointSQL, $iMaxRank);