lib/PlaceLookup.php

   1 <?php
   2
   3 namespace Nominatim;
   4
   5 require_once(CONST_BasePath.'/lib/Result.php');
   6
   7 class PlaceLookup
   8 {
   9     protected $oDB;
  10
  11     protected $aLangPrefOrderSql = "''";
  12
  13     protected $bAddressDetails = false;
  14     protected $bExtraTags = false;
  15     protected $bNameDetails = false;
  16
  17     protected $bIncludePolygonAsPoints = false;
  18     protected $bIncludePolygonAsText = false;
  19     protected $bIncludePolygonAsGeoJSON = false;
  20     protected $bIncludePolygonAsKML = false;
  21     protected $bIncludePolygonAsSVG = false;
  22     protected $fPolygonSimplificationThreshold = 0.0;
  23
  24     protected $sAnchorSql = null;
  25     protected $sAddressRankListSql = null;
  26     protected $sAllowedTypesSQLList = null;
  27     protected $bDeDupe = true;
  28
  29
  30     public function __construct(&$oDB)
  31     {
  32         $this->oDB =& $oDB;
  33     }
  34
  35     public function doDeDupe()
  36     {
  37         return $this->bDeDupe;
  38     }
  39
  40     public function setIncludePolygonAsPoints($b = true)
  41     {
  42         $this->bIncludePolygonAsPoints = $b;
  43     }
  44
  45     public function loadParamArray($oParams, $sGeomType = null)
  46     {
  47         $aLangs = $oParams->getPreferredLanguages();
  48         $this->aLangPrefOrderSql =
  49             'ARRAY['.join(',', array_map('getDBQuoted', $aLangs)).']';
  50
  51         $this->bAddressDetails = $oParams->getBool('addressdetails', true);
  52         $this->bExtraTags = $oParams->getBool('extratags', false);
  53         $this->bNameDetails = $oParams->getBool('namedetails', false);
  54
  55         $this->bDeDupe = $oParams->getBool('dedupe', $this->bDeDupe);
  56
  57         if ($sGeomType === null || $sGeomType == 'text') {
  58             $this->bIncludePolygonAsText = $oParams->getBool('polygon_text');
  59         }
  60         if ($sGeomType === null || $sGeomType == 'geojson') {
  61             $this->bIncludePolygonAsGeoJSON = $oParams->getBool('polygon_geojson');
  62         }
  63         if ($sGeomType === null || $sGeomType == 'kml') {
  64             $this->bIncludePolygonAsKML = $oParams->getBool('polygon_kml');
  65         }
  66         if ($sGeomType === null || $sGeomType == 'svg') {
  67             $this->bIncludePolygonAsSVG = $oParams->getBool('polygon_svg');
  68         }
  69         $this->fPolygonSimplificationThreshold
  70             = $oParams->getFloat('polygon_threshold', 0.0);
  71
  72         $iWantedTypes =
  73             ($this->bIncludePolygonAsText ? 1 : 0) +
  74             ($this->bIncludePolygonAsGeoJSON ? 1 : 0) +
  75             ($this->bIncludePolygonAsKML ? 1 : 0) +
  76             ($this->bIncludePolygonAsSVG ? 1 : 0);
  77         if ($iWantedTypes > CONST_PolygonOutput_MaximumTypes) {
  78             if (CONST_PolygonOutput_MaximumTypes) {
  79                 userError("Select only ".CONST_PolygonOutput_MaximumTypes." polgyon output option");
  80             } else {
  81                 userError("Polygon output is disabled");
  82             }
  83         }
  84     }
  85
  86     public function getMoreUrlParams()
  87     {
  88         $aParams = array();
  89
  90         if ($this->bAddressDetails) $aParams['addressdetails'] = '1';
  91         if ($this->bExtraTags) $aParams['extratags'] = '1';
  92         if ($this->bNameDetails) $aParams['namedetails'] = '1';
  93
  94         if ($this->bIncludePolygonAsPoints) $aParams['polygon'] = '1';
  95         if ($this->bIncludePolygonAsText) $aParams['polygon_text'] = '1';
  96         if ($this->bIncludePolygonAsGeoJSON) $aParams['polygon_geojson'] = '1';
  97         if ($this->bIncludePolygonAsKML) $aParams['polygon_kml'] = '1';
  98         if ($this->bIncludePolygonAsSVG) $aParams['polygon_svg'] = '1';
  99
 100         if ($this->fPolygonSimplificationThreshold > 0.0) {
 101             $aParams['polygon_threshold'] = $this->fPolygonSimplificationThreshold;
 102         }
 103
 104         if (!$this->bDeDupe) $aParams['dedupe'] = '0';
 105
 106         return $aParams;
 107     }
 108
 109     public function setAnchorSql($sPoint)
 110     {
 111         $this->sAnchorSql = $sPoint;
 112     }
 113
 114     public function setAddressRankList($aList)
 115     {
 116         $this->sAddressRankListSql = '('.join(',', $aList).')';
 117     }
 118
 119     public function setAllowedTypesSQLList($sSql)
 120     {
 121         $this->sAllowedTypesSQLList = $sSql;
 122     }
 123
 124     public function setLanguagePreference($aLangPrefOrder)
 125     {
 126         $this->aLangPrefOrderSql =
 127             'ARRAY['.join(',', array_map('getDBQuoted', $aLangPrefOrder)).']';
 128     }
 129
 130     public function setIncludeAddressDetails($bAddressDetails = true)
 131     {
 132         $this->bAddressDetails = $bAddressDetails;
 133     }
 134
 135     private function addressImportanceSql($sGeometry, $sPlaceId)
 136     {
 137         if ($this->sAnchorSql) {
 138             $sSQL = 'ST_Distance('.$this->sAnchorSql.','.$sGeometry.')';
 139         } else {
 140             $sSQL = '(SELECT max(ai_p.importance * (ai_p.rank_address + 2))';
 141             $sSQL .= '   FROM place_addressline ai_s, placex ai_p';
 142             $sSQL .= '   WHERE ai_s.place_id = '.$sPlaceId;
 143             $sSQL .= '     AND ai_p.place_id = ai_s.address_place_id ';
 144             $sSQL .= '     AND ai_s.isaddress ';
 145             $sSQL .= '     AND ai_p.importance is not null)';
 146         }
 147
 148         return $sSQL.' AS addressimportance,';
 149     }
 150
 151     private function langAddressSql($sHousenumber)
 152     {
 153         return 'get_address_by_language(place_id,'.$sHousenumber.','.$this->aLangPrefOrderSql.') AS langaddress,';
 154     }
 155
 156     public function lookupOSMID($sType, $iID)
 157     {
 158         $sSQL = "select place_id from placex where osm_type = '".$sType."' and osm_id = ".$iID;
 159         $iPlaceID = chksql($this->oDB->getOne($sSQL));
 160
 161         if (!$iPlaceID) {
 162             return null;
 163         }
 164
 165         $aResults = $this->lookup(array($iPlaceID => new Result($iPlaceID)));
 166
 167         return sizeof($aResults) ? reset($aResults) : null;
 168     }
 169
 170     public function lookup($aResults, $iMinRank = 0, $iMaxRank = 30)
 171     {
 172         if (!sizeof($aResults)) {
 173             return array();
 174         }
 175         $aSubSelects = array();
 176
 177         $sPlaceIDs = Result::joinIdsByTable($aResults, Result::TABLE_PLACEX);
 178         if (CONST_Debug) var_dump('PLACEX', $sPlaceIDs);
 179         if ($sPlaceIDs) {
 180             $sSQL  = 'SELECT ';
 181             $sSQL .= '    osm_type,';
 182             $sSQL .= '    osm_id,';
 183             $sSQL .= '    class,';
 184             $sSQL .= '    type,';
 185             $sSQL .= '    admin_level,';
 186             $sSQL .= '    rank_search,';
 187             $sSQL .= '    rank_address,';
 188             $sSQL .= '    min(place_id) AS place_id,';
 189             $sSQL .= '    min(parent_place_id) AS parent_place_id,';
 190             $sSQL .= '    housenumber,';
 191             $sSQL .= '    country_code,';
 192             $sSQL .= $this->langAddressSql('-1');
 193             $sSQL .= '    get_name_by_language(name,'.$this->aLangPrefOrderSql.') AS placename,';
 194             $sSQL .= "    get_name_by_language(name, ARRAY['ref']) AS ref,";
 195             if ($this->bExtraTags) {
 196                 $sSQL .= 'hstore_to_json(extratags)::text AS extra,';
 197             }
 198             if ($this->bNameDetails) {
 199                 $sSQL .= 'hstore_to_json(name)::text AS names,';
 200             }
 201             $sSQL .= '    avg(ST_X(centroid)) AS lon, ';
 202             $sSQL .= '    avg(ST_Y(centroid)) AS lat, ';
 203             $sSQL .= '    COALESCE(importance,0.75-(rank_search::float/40)) AS importance, ';
 204             $sSQL .= $this->addressImportanceSql(
 205                 'ST_Collect(centroid)',
 206                 'min(CASE WHEN placex.rank_search < 28 THEN placex.place_id ELSE placex.parent_place_id END)'
 207             );
 208             $sSQL .= "    (extratags->'place') AS extra_place ";
 209             $sSQL .= ' FROM placex';
 210             $sSQL .= " WHERE place_id in ($sPlaceIDs) ";
 211             $sSQL .= '   AND (';
 212             $sSQL .= "        placex.rank_address between $iMinRank and $iMaxRank ";
 213             if (14 >= $iMinRank && 14 <= $iMaxRank) {
 214                 $sSQL .= "    OR (extratags->'place') = 'city'";
 215             }
 216             if ($this->sAddressRankListSql) {
 217                 $sSQL .= '    OR placex.rank_address in '.$this->sAddressRankListSql;
 218             }
 219             $sSQL .= "       ) ";
 220             if ($this->sAllowedTypesSQLList) {
 221                 $sSQL .= 'AND placex.class in '.$this->sAllowedTypesSQLList;
 222             }
 223             $sSQL .= '    AND linked_place_id is null ';
 224             $sSQL .= ' GROUP BY ';
 225             $sSQL .= '     osm_type, ';
 226             $sSQL .= '     osm_id, ';
 227             $sSQL .= '     class, ';
 228             $sSQL .= '     type, ';
 229             $sSQL .= '     admin_level, ';
 230             $sSQL .= '     rank_search, ';
 231             $sSQL .= '     rank_address, ';
 232             $sSQL .= '     housenumber,';
 233             $sSQL .= '     country_code, ';
 234             $sSQL .= '     importance, ';
 235             if (!$this->bDeDupe) $sSQL .= 'place_id,';
 236             $sSQL .= '     langaddress, ';
 237             $sSQL .= '     placename, ';
 238             $sSQL .= '     ref, ';
 239             if ($this->bExtraTags) $sSQL .= 'extratags, ';
 240             if ($this->bNameDetails) $sSQL .= 'name, ';
 241             $sSQL .= "     extratags->'place' ";
 242
 243             $aSubSelects[] = $sSQL;
 244         }
 245
 246         // postcode table
 247         $sPlaceIDs = Result::joinIdsByTable($aResults, Result::TABLE_POSTCODE);
 248         if ($sPlaceIDs) {
 249             $sSQL = 'SELECT';
 250             $sSQL .= "  'P' as osm_type,";
 251             $sSQL .= "  (SELECT osm_id from placex p WHERE p.place_id = lp.parent_place_id) as osm_id,";
 252             $sSQL .= "  'place' as class, 'postcode' as type,";
 253             $sSQL .= '  null as admin_level, rank_search, rank_address,';
 254             $sSQL .= '  place_id, parent_place_id,';
 255             $sSQL .= '  null as housenumber,';
 256             $sSQL .= '  country_code,';
 257             $sSQL .= $this->langAddressSql('-1');
 258             $sSQL .= "  postcode as placename,";
 259             $sSQL .= "  postcode as ref,";
 260             if ($this->bExtraTags) $sSQL .= "null AS extra,";
 261             if ($this->bNameDetails) $sSQL .= "null AS names,";
 262             $sSQL .= "  ST_x(geometry) AS lon, ST_y(geometry) AS lat,";
 263             $sSQL .= "  (0.75-(rank_search::float/40)) AS importance, ";
 264             $sSQL .= $this->addressImportanceSql('geometry', 'lp.parent_place_id');
 265             $sSQL .= "  null AS extra_place ";
 266             $sSQL .= "FROM location_postcode lp";
 267             $sSQL .= " WHERE place_id in ($sPlaceIDs) ";
 268             $sSQL .= "   AND lp.rank_address between $iMinRank and $iMaxRank";
 269
 270             $aSubSelects[] = $sSQL;
 271         }
 272
 273         // All other tables are rank 30 only.
 274         if ($iMaxRank == 30) {
 275             // TIGER table
 276             if (CONST_Use_US_Tiger_Data) {
 277                 $sPlaceIDs = Result::joinIdsByTable($aResults, Result::TABLE_TIGER);
 278                 if ($sPlaceIDs) {
 279                     $sHousenumbers = Result::sqlHouseNumberTable($aResults, Result::TABLE_TIGER);
 280                     // Tiger search only if a housenumber was searched and if it was found
 281                     // (realized through a join)
 282                     $sSQL = " SELECT ";
 283                     $sSQL .= "     'T' AS osm_type, ";
 284                     $sSQL .= "     (SELECT osm_id from placex p WHERE p.place_id=blub.parent_place_id) as osm_id, ";
 285                     $sSQL .= "     'place' AS class, ";
 286                     $sSQL .= "     'house' AS type, ";
 287                     $sSQL .= '     null AS admin_level, ';
 288                     $sSQL .= '     30 AS rank_search, ';
 289                     $sSQL .= '     30 AS rank_address, ';
 290                     $sSQL .= '     place_id, ';
 291                     $sSQL .= '     parent_place_id, ';
 292                     $sSQL .= '     housenumber_for_place as housenumber,';
 293                     $sSQL .= "     'us' AS country_code, ";
 294                     $sSQL .= $this->langAddressSql('housenumber_for_place');
 295                     $sSQL .= "     null AS placename, ";
 296                     $sSQL .= "     null AS ref, ";
 297                     if ($this->bExtraTags) $sSQL .= "null AS extra,";
 298                     if ($this->bNameDetails) $sSQL .= "null AS names,";
 299                     $sSQL .= "     st_x(centroid) AS lon, ";
 300                     $sSQL .= "     st_y(centroid) AS lat,";
 301                     $sSQL .= "     -1.15 AS importance, ";
 302                     $sSQL .= $this->addressImportanceSql('centroid', 'blub.parent_place_id');
 303                     $sSQL .= "     null AS extra_place ";
 304                     $sSQL .= " FROM (";
 305                     $sSQL .= "     SELECT place_id, ";    // interpolate the Tiger housenumbers here
 306                     $sSQL .= "         ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) AS centroid, ";
 307                     $sSQL .= "         parent_place_id, ";
 308                     $sSQL .= "         housenumber_for_place";
 309                     $sSQL .= "     FROM (";
 310                     $sSQL .= "            location_property_tiger ";
 311                     $sSQL .= "            JOIN (values ".$sHousenumbers.") AS housenumbers(place_id, housenumber_for_place) USING(place_id)) ";
 312                     $sSQL .= "     WHERE ";
 313                     $sSQL .= "         housenumber_for_place >= startnumber";
 314                     $sSQL .= "         AND housenumber_for_place <= endnumber";
 315                     $sSQL .= " ) AS blub"; //postgres wants an alias here
 316
 317                     $aSubSelects[] = $sSQL;
 318                 }
 319             }
 320
 321             // osmline - interpolated housenumbers
 322             $sPlaceIDs = Result::joinIdsByTable($aResults, Result::TABLE_OSMLINE);
 323             if ($sPlaceIDs) {
 324                 $sHousenumbers = Result::sqlHouseNumberTable($aResults, Result::TABLE_OSMLINE);
 325                 // interpolation line search only if a housenumber was searched
 326                 // (realized through a join)
 327                 $sSQL = "SELECT ";
 328                 $sSQL .= "  'W' AS osm_type, ";
 329                 $sSQL .= "  osm_id, ";
 330                 $sSQL .= "  'place' AS class, ";
 331                 $sSQL .= "  'house' AS type, ";
 332                 $sSQL .= '  15 AS admin_level, ';
 333                 $sSQL .= '  30 AS rank_search, ';
 334                 $sSQL .= '  30 AS rank_address, ';
 335                 $sSQL .= '  place_id, ';
 336                 $sSQL .= '  parent_place_id, ';
 337                 $sSQL .= '  housenumber_for_place as housenumber,';
 338                 $sSQL .= '  country_code, ';
 339                 $sSQL .= $this->langAddressSql('housenumber_for_place');
 340                 $sSQL .= '  null AS placename, ';
 341                 $sSQL .= '  null AS ref, ';
 342                 if ($this->bExtraTags) $sSQL .= 'null AS extra, ';
 343                 if ($this->bNameDetails) $sSQL .= 'null AS names, ';
 344                 $sSQL .= '  st_x(centroid) AS lon, ';
 345                 $sSQL .= '  st_y(centroid) AS lat, ';
 346                 // slightly smaller than the importance for normal houses
 347                 $sSQL .= "  -0.1 AS importance, ";
 348                 $sSQL .= $this->addressImportanceSql('centroid', 'blub.parent_place_id');
 349                 $sSQL .= "  null AS extra_place ";
 350                 $sSQL .= "  FROM (";
 351                 $sSQL .= "     SELECT ";
 352                 $sSQL .= "         osm_id, ";
 353                 $sSQL .= "         place_id, ";
 354                 $sSQL .= "         country_code, ";
 355                 $sSQL .= "         CASE ";             // interpolate the housenumbers here
 356                 $sSQL .= "           WHEN startnumber != endnumber ";
 357                 $sSQL .= "           THEN ST_LineInterpolatePoint(linegeo, (housenumber_for_place-startnumber::float)/(endnumber-startnumber)::float) ";
 358                 $sSQL .= "           ELSE ST_LineInterpolatePoint(linegeo, 0.5) ";
 359                 $sSQL .= "         END as centroid, ";
 360                 $sSQL .= "         parent_place_id, ";
 361                 $sSQL .= "         housenumber_for_place ";
 362                 $sSQL .= "     FROM (";
 363                 $sSQL .= "            location_property_osmline ";
 364                 $sSQL .= "            JOIN (values ".$sHousenumbers.") AS housenumbers(place_id, housenumber_for_place) USING(place_id)";
 365                 $sSQL .= "          ) ";
 366                 $sSQL .= "     WHERE housenumber_for_place >= 0 ";
 367                 $sSQL .= "  ) as blub"; //postgres wants an alias here
 368
 369                 $aSubSelects[] = $sSQL;
 370             }
 371
 372             if (CONST_Use_Aux_Location_data) {
 373                 $sPlaceIDs = Result::joinIdsByTable($aResults, Result::TABLE_AUX);
 374                 if ($sPlaceIDs) {
 375                     $sHousenumbers = Result::sqlHouseNumberTable($aResults, Result::TABLE_AUX);
 376                     $sSQL = "  SELECT ";
 377                     $sSQL .= "     'L' AS osm_type, ";
 378                     $sSQL .= "     place_id AS osm_id, ";
 379                     $sSQL .= "     'place' AS class,";
 380                     $sSQL .= "     'house' AS type, ";
 381                     $sSQL .= '     null AS admin_level, ';
 382                     $sSQL .= '     30 AS rank_search,';
 383                     $sSQL .= '     30 AS rank_address, ';
 384                     $sSQL .= '     place_id,';
 385                     $sSQL .= '     parent_place_id, ';
 386                     $sSQL .= '     housenumber,';
 387                     $sSQL .= "     'us' AS country_code, ";
 388                     $sSQL .= $this->langAddressSql('-1');
 389                     $sSQL .= "     null AS placename, ";
 390                     $sSQL .= "     null AS ref, ";
 391                     if ($this->bExtraTags) $sSQL .= "null AS extra, ";
 392                     if ($this->bNameDetails) $sSQL .= "null AS names, ";
 393                     $sSQL .= "     ST_X(centroid) AS lon, ";
 394                     $sSQL .= "     ST_Y(centroid) AS lat, ";
 395                     $sSQL .= "     -1.10 AS importance, ";
 396                     $sSQL .= $this->addressImportanceSql(
 397                         'centroid',
 398                         'location_property_aux.parent_place_id'
 399                     );
 400                     $sSQL .= "     null AS extra_place ";
 401                     $sSQL .= "  FROM location_property_aux ";
 402                     $sSQL .= "  WHERE place_id in ($sPlaceIDs) ";
 403
 404                     $aSubSelects[] = $sSQL;
 405                 }
 406             }
 407         }
 408
 409         if (CONST_Debug) var_dump($aSubSelects);
 410
 411         if (!sizeof($aSubSelects)) {
 412             return array();
 413         }
 414
 415         $aPlaces = chksql(
 416             $this->oDB->getAll(join(' UNION ', $aSubSelects)),
 417             "Could not lookup place"
 418         );
 419
 420         $aClassType = getClassTypes();
 421         foreach ($aPlaces as &$aPlace) {
 422             if ($this->bAddressDetails) {
 423                 // to get addressdetails for tiger data, the housenumber is needed
 424                 $aPlace['aAddress'] = $this->getAddressNames(
 425                     $aPlace['place_id'],
 426                     $aPlace['housenumber']
 427                 );
 428             }
 429
 430             if ($this->bExtraTags) {
 431                 if ($aPlace['extra']) {
 432                     $aPlace['sExtraTags'] = json_decode($aPlace['extra']);
 433                 } else {
 434                     $aPlace['sExtraTags'] = (object) array();
 435                 }
 436             }
 437
 438             if ($this->bNameDetails) {
 439                 if ($aPlace['names']) {
 440                     $aPlace['sNameDetails'] = json_decode($aPlace['names']);
 441                 } else {
 442                     $aPlace['sNameDetails'] = (object) array();
 443                 }
 444             }
 445
 446             $sAddressType = '';
 447             $sClassType = $aPlace['class'].':'.$aPlace['type'].':'.$aPlace['admin_level'];
 448             if (isset($aClassType[$sClassType]) && isset($aClassType[$sClassType]['simplelabel'])) {
 449                 $sAddressType = $aClassType[$aClassType]['simplelabel'];
 450             } else {
 451                 $sClassType = $aPlace['class'].':'.$aPlace['type'];
 452                 if (isset($aClassType[$sClassType]) && isset($aClassType[$sClassType]['simplelabel']))
 453                     $sAddressType = $aClassType[$sClassType]['simplelabel'];
 454                 else $sAddressType = $aPlace['class'];
 455             }
 456
 457             $aPlace['addresstype'] = $sAddressType;
 458         }
 459
 460         if (CONST_Debug) var_dump($aPlaces);
 461
 462         return $aPlaces;
 463     }
 464
 465     private function getAddressDetails($iPlaceID, $bAll, $sHousenumber)
 466     {
 467         $sSQL = 'SELECT *,';
 468         $sSQL .= '  get_name_by_language(name,'.$this->aLangPrefOrderSql.') as localname';
 469         $sSQL .= ' FROM get_addressdata('.$iPlaceID.','.$sHousenumber.')';
 470         if (!$bAll) {
 471             $sSQL .= " WHERE isaddress OR type = 'country_code'";
 472         }
 473         $sSQL .= ' ORDER BY rank_address desc,isaddress DESC';
 474
 475         return chksql($this->oDB->getAll($sSQL));
 476     }
 477
 478     public function getAddressNames($iPlaceID, $sHousenumber = null)
 479     {
 480         $aAddressLines = $this->getAddressDetails(
 481             $iPlaceID,
 482             false,
 483             $sHousenumber === null ? -1 : $sHousenumber
 484         );
 485
 486         $aAddress = array();
 487         $aFallback = array();
 488         $aClassType = getClassTypes();
 489         foreach ($aAddressLines as $aLine) {
 490             $bFallback = false;
 491             $aTypeLabel = false;
 492             if (isset($aClassType[$aLine['class'].':'.$aLine['type'].':'.$aLine['admin_level']])) {
 493                 $aTypeLabel = $aClassType[$aLine['class'].':'.$aLine['type'].':'.$aLine['admin_level']];
 494             } elseif (isset($aClassType[$aLine['class'].':'.$aLine['type']])) {
 495                 $aTypeLabel = $aClassType[$aLine['class'].':'.$aLine['type']];
 496             } elseif (isset($aClassType['boundary:administrative:'.((int)($aLine['rank_address']/2))])) {
 497                 $aTypeLabel = $aClassType['boundary:administrative:'.((int)($aLine['rank_address']/2))];
 498                 $bFallback = true;
 499             } else {
 500                 $aTypeLabel = array('simplelabel' => 'address'.$aLine['rank_address']);
 501                 $bFallback = true;
 502             }
 503             if ($aTypeLabel && ((isset($aLine['localname']) && $aLine['localname']) || (isset($aLine['housenumber']) && $aLine['housenumber']))) {
 504                 $sTypeLabel = strtolower(isset($aTypeLabel['simplelabel'])?$aTypeLabel['simplelabel']:$aTypeLabel['label']);
 505                 $sTypeLabel = str_replace(' ', '_', $sTypeLabel);
 506                 if (!isset($aAddress[$sTypeLabel]) || (isset($aFallback[$sTypeLabel]) && $aFallback[$sTypeLabel]) || $aLine['class'] == 'place') {
 507                     $aAddress[$sTypeLabel] = $aLine['localname']?$aLine['localname']:$aLine['housenumber'];
 508                 }
 509                 $aFallback[$sTypeLabel] = $bFallback;
 510             }
 511         }
 512         return $aAddress;
 513     }
 514
 515
 516
 517     /* returns an array which will contain the keys
 518      *   aBoundingBox
 519      * and may also contain one or more of the keys
 520      *   asgeojson
 521      *   askml
 522      *   assvg
 523      *   astext
 524      *   lat
 525      *   lon
 526      */
 527
 528
 529     public function getOutlines($iPlaceID, $fLon = null, $fLat = null, $fRadius = null)
 530     {
 531
 532         $aOutlineResult = array();
 533         if (!$iPlaceID) return $aOutlineResult;
 534
 535         if (CONST_Search_AreaPolygons) {
 536             // Get the bounding box and outline polygon
 537             $sSQL  = "select place_id,0 as numfeatures,st_area(geometry) as area,";
 538             $sSQL .= "ST_Y(centroid) as centrelat,ST_X(centroid) as centrelon,";
 539             $sSQL .= "ST_YMin(geometry) as minlat,ST_YMax(geometry) as maxlat,";
 540             $sSQL .= "ST_XMin(geometry) as minlon,ST_XMax(geometry) as maxlon";
 541             if ($this->bIncludePolygonAsGeoJSON) $sSQL .= ",ST_AsGeoJSON(geometry) as asgeojson";
 542             if ($this->bIncludePolygonAsKML) $sSQL .= ",ST_AsKML(geometry) as askml";
 543             if ($this->bIncludePolygonAsSVG) $sSQL .= ",ST_AsSVG(geometry) as assvg";
 544             if ($this->bIncludePolygonAsText || $this->bIncludePolygonAsPoints) $sSQL .= ",ST_AsText(geometry) as astext";
 545             $sFrom = " from placex where place_id = ".$iPlaceID;
 546             if ($this->fPolygonSimplificationThreshold > 0) {
 547                 $sSQL .= " from (select place_id,centroid,ST_SimplifyPreserveTopology(geometry,".$this->fPolygonSimplificationThreshold.") as geometry".$sFrom.") as plx";
 548             } else {
 549                 $sSQL .= $sFrom;
 550             }
 551
 552             $aPointPolygon = chksql($this->oDB->getRow($sSQL), "Could not get outline");
 553
 554             if ($aPointPolygon['place_id']) {
 555                 if ($aPointPolygon['centrelon'] !== null && $aPointPolygon['centrelat'] !== null) {
 556                     $aOutlineResult['lat'] = $aPointPolygon['centrelat'];
 557                     $aOutlineResult['lon'] = $aPointPolygon['centrelon'];
 558                 }
 559
 560                 if ($this->bIncludePolygonAsGeoJSON) $aOutlineResult['asgeojson'] = $aPointPolygon['asgeojson'];
 561                 if ($this->bIncludePolygonAsKML) $aOutlineResult['askml'] = $aPointPolygon['askml'];
 562                 if ($this->bIncludePolygonAsSVG) $aOutlineResult['assvg'] = $aPointPolygon['assvg'];
 563                 if ($this->bIncludePolygonAsText) $aOutlineResult['astext'] = $aPointPolygon['astext'];
 564                 if ($this->bIncludePolygonAsPoints) $aOutlineResult['aPolyPoints'] = geometryText2Points($aPointPolygon['astext'], $fRadius);
 565
 566
 567                 if (abs($aPointPolygon['minlat'] - $aPointPolygon['maxlat']) < 0.0000001) {
 568                     $aPointPolygon['minlat'] = $aPointPolygon['minlat'] - $fRadius;
 569                     $aPointPolygon['maxlat'] = $aPointPolygon['maxlat'] + $fRadius;
 570                 }
 571
 572                 if (abs($aPointPolygon['minlon'] - $aPointPolygon['maxlon']) < 0.0000001) {
 573                     $aPointPolygon['minlon'] = $aPointPolygon['minlon'] - $fRadius;
 574                     $aPointPolygon['maxlon'] = $aPointPolygon['maxlon'] + $fRadius;
 575                 }
 576
 577                 $aOutlineResult['aBoundingBox'] = array(
 578                                                    (string)$aPointPolygon['minlat'],
 579                                                    (string)$aPointPolygon['maxlat'],
 580                                                    (string)$aPointPolygon['minlon'],
 581                                                    (string)$aPointPolygon['maxlon']
 582                                                   );
 583             }
 584         }
 585
 586         // as a fallback we generate a bounding box without knowing the size of the geometry
 587         if ((!isset($aOutlineResult['aBoundingBox'])) && isset($fLon)) {
 588             //
 589             if ($this->bIncludePolygonAsPoints) {
 590                 $sGeometryText = 'POINT('.$fLon.','.$fLat.')';
 591                 $aOutlineResult['aPolyPoints'] = geometryText2Points($sGeometryText, $fRadius);
 592             }
 593
 594             $aBounds = array();
 595             $aBounds['minlat'] = $fLat - $fRadius;
 596             $aBounds['maxlat'] = $fLat + $fRadius;
 597             $aBounds['minlon'] = $fLon - $fRadius;
 598             $aBounds['maxlon'] = $fLon + $fRadius;
 599
 600             $aOutlineResult['aBoundingBox'] = array(
 601                                                (string)$aBounds['minlat'],
 602                                                (string)$aBounds['maxlat'],
 603                                                (string)$aBounds['minlon'],
 604                                                (string)$aBounds['maxlon']
 605                                               );
 606         }
 607         return $aOutlineResult;
 608     }
 609 }