mirror of
https://github.com/osm-search/Nominatim.git
synced 2026-03-11 13:24:07 +00:00
refector reverse geocoding into its own class
This commit is contained in:
Brian Quinion
76
lib/PlaceLookup.php
Normal file
76
lib/PlaceLookup.php
Normal file
@@ -0,0 +1,76 @@
|
|||||||
|
<?php
|
||||||
|
class PlaceLookup
|
||||||
|
{
|
||||||
|
protected $oDB;
|
||||||
|
|
||||||
|
protected $iPlaceID;
|
||||||
|
|
||||||
|
protected $aLangPrefOrder = array();
|
||||||
|
|
||||||
|
protected $bAddressDetails = false;
|
||||||
|
|
||||||
|
function PlaceLookup(&$oDB)
|
||||||
|
{
|
||||||
|
$this->oDB =& $oDB;
|
||||||
|
}
|
||||||
|
|
||||||
|
function setLanguagePreference($aLangPrefOrder)
|
||||||
|
{
|
||||||
|
$this->aLangPrefOrder = $aLangPrefOrder;
|
||||||
|
}
|
||||||
|
|
||||||
|
function setIncludeAddressDetails($bAddressDetails = true)
|
||||||
|
{
|
||||||
|
$this->bAddressDetails = $bAddressDetails;
|
||||||
|
}
|
||||||
|
|
||||||
|
function setPlaceID($iPlaceID)
|
||||||
|
{
|
||||||
|
$this->iPlaceID = $iPlaceID;
|
||||||
|
}
|
||||||
|
|
||||||
|
function setOSMID($sType, $iID)
|
||||||
|
{
|
||||||
|
$sSQL = "select place_id from placex where osm_type = '".pg_escape_string($sType)."' and osm_id = ".(int)$iID." order by type = 'postcode' asc";
|
||||||
|
$this->iPlaceID = $this->oDB->getOne($sSQL);
|
||||||
|
}
|
||||||
|
|
||||||
|
function lookup()
|
||||||
|
{
|
||||||
|
$sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted", $this->aLangPrefOrder))."]";
|
||||||
|
|
||||||
|
$sSQL = "select placex.*,";
|
||||||
|
$sSQL .= " get_address_by_language(place_id, $sLanguagePrefArraySQL) as langaddress,";
|
||||||
|
$sSQL .= " get_name_by_language(name, $sLanguagePrefArraySQL) as placename,";
|
||||||
|
$sSQL .= " get_name_by_language(name, ARRAY['ref']) as ref,";
|
||||||
|
$sSQL .= " st_y(centroid) as lat, st_x(centroid) as lon";
|
||||||
|
$sSQL .= " from placex where place_id = ".(int)$this->iPlaceID;
|
||||||
|
$aPlace = $this->oDB->getRow($sSQL);
|
||||||
|
|
||||||
|
if ($this->bAddressDetails)
|
||||||
|
{
|
||||||
|
$aAddress = getAddressDetails($this->oDB, $sLanguagePrefArraySQL, $this->iPlaceID, $aPlace['calculated_country_code']);
|
||||||
|
$aPlace['aAddress'] = $aAddress;
|
||||||
|
}
|
||||||
|
|
||||||
|
$aClassType = getClassTypes();
|
||||||
|
$sAddressType = '';
|
||||||
|
$sClassType = $aPlace['class'].':'.$aPlace['type'].':'.$aPlace['admin_level'];
|
||||||
|
if (isset($aClassType[$sClassType]) && isset($aClassType[$sClassType]['simplelabel']))
|
||||||
|
{
|
||||||
|
$sAddressType = $aClassType[$aClassType]['simplelabel'];
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
$sClassType = $aPlace['class'].':'.$aPlace['type'];
|
||||||
|
if (isset($aClassType[$sClassType]) && isset($aClassType[$sClassType]['simplelabel']))
|
||||||
|
$sAddressType = $aClassType[$sClassType]['simplelabel'];
|
||||||
|
else $sAddressType = $aPlace['class'];
|
||||||
|
}
|
||||||
|
|
||||||
|
$aPlace['addresstype'] = $sAddressType;
|
||||||
|
|
||||||
|
return $aPlace;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
?>
|
||||||
139
lib/ReverseGeocode.php
Normal file
139
lib/ReverseGeocode.php
Normal file
@@ -0,0 +1,139 @@
|
|||||||
|
<?php
|
||||||
|
class ReverseGeocode
|
||||||
|
{
|
||||||
|
protected $oDB;
|
||||||
|
|
||||||
|
protected $fLat;
|
||||||
|
protected $fLon;
|
||||||
|
protected $iMaxRank = 28;
|
||||||
|
|
||||||
|
protected $aLangPrefOrder = array();
|
||||||
|
|
||||||
|
protected $bShowAddressDetails = true;
|
||||||
|
|
||||||
|
function ReverseGeocode(&$oDB)
|
||||||
|
{
|
||||||
|
$this->oDB =& $oDB;
|
||||||
|
}
|
||||||
|
|
||||||
|
function setLanguagePreference($aLangPref)
|
||||||
|
{
|
||||||
|
$this->aLangPrefOrder = $aLangPref;
|
||||||
|
}
|
||||||
|
|
||||||
|
function setIncludeAddressDetails($bAddressDetails = true)
|
||||||
|
{
|
||||||
|
$this->bAddressDetails = $bAddressDetails;
|
||||||
|
}
|
||||||
|
|
||||||
|
function setLatLon($fLat, $fLon)
|
||||||
|
{
|
||||||
|
$this->fLat = (float)$fLat;
|
||||||
|
$this->fLon = (float)$fLon;
|
||||||
|
}
|
||||||
|
|
||||||
|
function setRank($iRank)
|
||||||
|
{
|
||||||
|
$this->iMaxRank = $iRank;
|
||||||
|
}
|
||||||
|
|
||||||
|
function setZoom($iZoom)
|
||||||
|
{
|
||||||
|
// Zoom to rank, this could probably be calculated but a lookup gives fine control
|
||||||
|
$aZoomRank = array(
|
||||||
|
0 => 2, // Continent / Sea
|
||||||
|
1 => 2,
|
||||||
|
2 => 2,
|
||||||
|
3 => 4, // Country
|
||||||
|
4 => 4,
|
||||||
|
5 => 8, // State
|
||||||
|
6 => 10, // Region
|
||||||
|
7 => 10,
|
||||||
|
8 => 12, // County
|
||||||
|
9 => 12,
|
||||||
|
10 => 17, // City
|
||||||
|
11 => 17,
|
||||||
|
12 => 18, // Town / Village
|
||||||
|
13 => 18,
|
||||||
|
14 => 22, // Suburb
|
||||||
|
15 => 22,
|
||||||
|
16 => 26, // Street, TODO: major street?
|
||||||
|
17 => 26,
|
||||||
|
18 => 30, // or >, Building
|
||||||
|
19 => 30, // or >, Building
|
||||||
|
);
|
||||||
|
$this->iMaxRank = (isset($iZoom) && isset($aZoomRank[$iZoom]))?$aZoomRank[$iZoom]:28;
|
||||||
|
}
|
||||||
|
|
||||||
|
function lookup()
|
||||||
|
{
|
||||||
|
$sPointSQL = 'ST_SetSRID(ST_Point('.$this->fLon.','.$this->fLat.'),4326)';
|
||||||
|
$iMaxRank = $this->iMaxRank;
|
||||||
|
|
||||||
|
// Find the nearest point
|
||||||
|
$fSearchDiam = 0.0004;
|
||||||
|
$iPlaceID = null;
|
||||||
|
$aArea = false;
|
||||||
|
$fMaxAreaDistance = 1;
|
||||||
|
while(!$iPlaceID && $fSearchDiam < $fMaxAreaDistance)
|
||||||
|
{
|
||||||
|
$fSearchDiam = $fSearchDiam * 2;
|
||||||
|
|
||||||
|
// If we have to expand the search area by a large amount then we need a larger feature
|
||||||
|
// then there is a limit to how small the feature should be
|
||||||
|
if ($fSearchDiam > 2 && $iMaxRank > 4) $iMaxRank = 4;
|
||||||
|
if ($fSearchDiam > 1 && $iMaxRank > 9) $iMaxRank = 8;
|
||||||
|
if ($fSearchDiam > 0.8 && $iMaxRank > 10) $iMaxRank = 10;
|
||||||
|
if ($fSearchDiam > 0.6 && $iMaxRank > 12) $iMaxRank = 12;
|
||||||
|
if ($fSearchDiam > 0.2 && $iMaxRank > 17) $iMaxRank = 17;
|
||||||
|
if ($fSearchDiam > 0.1 && $iMaxRank > 18) $iMaxRank = 18;
|
||||||
|
if ($fSearchDiam > 0.008 && $iMaxRank > 22) $iMaxRank = 22;
|
||||||
|
if ($fSearchDiam > 0.001 && $iMaxRank > 26) $iMaxRank = 26;
|
||||||
|
|
||||||
|
$sSQL = 'select place_id,parent_place_id,rank_search from placex';
|
||||||
|
$sSQL .= ' WHERE ST_DWithin('.$sPointSQL.', geometry, '.$fSearchDiam.')';
|
||||||
|
$sSQL .= ' and rank_search != 28 and rank_search >= '.$iMaxRank;
|
||||||
|
$sSQL .= ' and (name is not null or housenumber is not null)';
|
||||||
|
$sSQL .= ' and class not in (\'waterway\',\'railway\',\'tunnel\',\'bridge\')';
|
||||||
|
$sSQL .= ' and (ST_GeometryType(geometry) not in (\'ST_Polygon\',\'ST_MultiPolygon\') ';
|
||||||
|
$sSQL .= ' and indexed_status = 0 ';
|
||||||
|
$sSQL .= ' OR ST_DWithin('.$sPointSQL.', centroid, '.$fSearchDiam.'))';
|
||||||
|
$sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1';
|
||||||
|
if (CONST_Debug) var_dump($sSQL);
|
||||||
|
$aPlace = $this->oDB->getRow($sSQL);
|
||||||
|
if (PEAR::IsError($aPlace))
|
||||||
|
{
|
||||||
|
failInternalError("Could not determine closest place.", $sSQL, $aPlace);
|
||||||
|
}
|
||||||
|
$iPlaceID = $aPlace['place_id'];
|
||||||
|
$iParentPlaceID = $aPlace['parent_place_id'];
|
||||||
|
}
|
||||||
|
|
||||||
|
// The point we found might be too small - use the address to find what it is a child of
|
||||||
|
if ($iPlaceID && $iMaxRank < 28)
|
||||||
|
{
|
||||||
|
if ($aPlace['rank_search'] > 28 && $iParentPlaceID)
|
||||||
|
{
|
||||||
|
$iPlaceID = $iParentPlaceID;
|
||||||
|
}
|
||||||
|
$sSQL = "select address_place_id from place_addressline where place_id = $iPlaceID order by abs(cached_rank_address - $iMaxRank) asc,cached_rank_address desc,isaddress desc,distance desc limit 1";
|
||||||
|
$iPlaceID = $this->oDB->getOne($sSQL);
|
||||||
|
if (PEAR::IsError($iPlaceID))
|
||||||
|
{
|
||||||
|
failInternalError("Could not get parent for place.", $sSQL, $iPlaceID);
|
||||||
|
}
|
||||||
|
if (!$iPlaceID)
|
||||||
|
{
|
||||||
|
$iPlaceID = $aPlace['place_id'];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
$oPlaceLookup = new PlaceLookup($this->oDB);
|
||||||
|
$oPlaceLookup->setLanguagePreference($this->aLangPrefOrder);
|
||||||
|
$oPlaceLookup->setIncludeAddressDetails($this->bAddressDetails);
|
||||||
|
$oPlaceLookup->setPlaceId($iPlaceID);
|
||||||
|
|
||||||
|
return $oPlaceLookup->lookup();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
?>
|
||||||
Reference in New Issue
Block a user