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make NearPoint its own class

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This commit is contained in:
Sarah Hoffmann
2017-03-15 20:43:08 +01:00
parent 3a696e1895
commit 41fce277cd
3 changed files with 160 additions and 105 deletions
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47
lib/Geocode.php
View File

@@ -2,6 +2,7 @@
namespace Nominatim;
require_once(CONST_BasePath.'/lib/NearPoint.php');
require_once(CONST_BasePath.'/lib/PlaceLookup.php');
require_once(CONST_BasePath.'/lib/ReverseGeocode.php');
@@ -32,7 +33,6 @@ class Geocode
protected $bFallback = false;
protected $aCountryCodes = false;
protected $aNearPoint = false;
protected $bBoundedSearch = false;
protected $aViewBox = false;
@@ -221,11 +221,6 @@ class Geocode
);
}
public function setNearPoint($aNearPoint, $fRadiusDeg = 0.1)
{
$this->aNearPoint = array((float)$aNearPoint[0], (float)$aNearPoint[1], (float)$fRadiusDeg);
}
public function setQuery($sQueryString)
{
$this->sQuery = $sQueryString;
@@ -942,8 +937,9 @@ class Geocode
}
// Do we have anything that looks like a lat/lon pair?
if ($aLooksLike = looksLikeLatLonPair($sQuery)) {
$this->setNearPoint(array($aLooksLike['lat'], $aLooksLike['lon']));
$oNearPoint = false;
if ($aLooksLike = NearPoint::extractFromQuery($sQuery)) {
$oNearPoint = $aLooksLike['pt'];
$sQuery = $aLooksLike['query'];
}
@@ -972,12 +968,10 @@ class Geocode
);
// Do we have a radius search?
$sNearPointSQL = false;
if ($this->aNearPoint) {
$sNearPointSQL = "ST_SetSRID(ST_Point(".(float)$this->aNearPoint[1].",".(float)$this->aNearPoint[0]."),4326)";
$aSearches[0]['fLat'] = (float)$this->aNearPoint[0];
$aSearches[0]['fLon'] = (float)$this->aNearPoint[1];
$aSearches[0]['fRadius'] = (float)$this->aNearPoint[2];
if ($oNearPoint) {
$aSearches[0]['fLat'] = $oNearPoint->lat();
$aSearches[0]['fLon'] = $oNearPoint->lon();
$aSearches[0]['fRadius'] = $oNearPoint->radius();
}
// Any 'special' terms in the search?
@@ -1382,7 +1376,9 @@ class Geocode
}
if ($bBoundingBoxSearch) $aTerms[] = "centroid && $this->sViewboxSmallSQL";
if ($sNearPointSQL) $aOrder[] = "ST_Distance($sNearPointSQL, centroid) ASC";
if ($oNearPoint) {
$aOrder[] = $oNearPoint->distanceSQL('centroid');
}
if ($aSearch['sHouseNumber']) {
$sImportanceSQL = '- abs(26 - address_rank) + 3';
@@ -1590,9 +1586,13 @@ class Geocode
$fRange = 0.05;
$sOrderBySQL = '';
if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.centroid)";
elseif ($sPlaceIDs) $sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
elseif ($sPlaceGeom) $sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
if ($oNearPoint) {
$sOrderBySQL = $oNearPoint->distanceSQL('l.centroid');
} elseif ($sPlaceIDs) {
$sOrderBySQL = "ST_Distance(l.centroid, f.geometry)";
} elseif ($sPlaceGeom) {
$sOrderBysSQL = "ST_Distance(st_centroid('".$sPlaceGeom."'), l.centroid)";
}
$sSQL = "select distinct l.place_id".($sOrderBySQL?','.$sOrderBySQL:'')." from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." as l";
if ($sCountryCodesSQL) $sSQL .= " join placex as lp using (place_id)";
@@ -1617,8 +1617,11 @@ class Geocode
if (isset($aSearch['fRadius']) && $aSearch['fRadius']) $fRange = $aSearch['fRadius'];
$sOrderBySQL = '';
if ($sNearPointSQL) $sOrderBySQL = "ST_Distance($sNearPointSQL, l.geometry)";
else $sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
if ($oNearPoint) {
$sOrderBySQL = $oNearPoint->distanceSQL('l.geometry');
} else {
$sOrderBySQL = "ST_Distance(l.geometry, f.geometry)";
}
$sSQL = "SELECT distinct l.place_id".($sOrderBysSQL?','.$sOrderBysSQL:'');
$sSQL .= " FROM placex as l, placex as f ";
@@ -1708,8 +1711,8 @@ class Geocode
$oReverse->setZoom(18);
$aLookup = $oReverse->lookup(
(float)$this->aNearPoint[0],
(float)$this->aNearPoint[1],
$oNearPoint->lat(),
$oNearPoint->lon(),
false
);

135
lib/NearPoint.php Normal file
View File

@@ -0,0 +1,135 @@
<?php
namespace Nominatim;
/**
* A geographic point with a search radius.
*/
class NearPoint
{
private $fLat;
private $fLon;
private $fRadius;
private $sSQL;
public function __construct($lat, $lon, $radius = 0.1)
{
$this->fLat = (float)$lat;
$this->fLon = (float)$lon;
$this->fRadius = (float)$radius;
$this->sSQL = 'ST_SetSRID(ST_Point('.$this->fLon.','.$this->fLat.'),4326)';
}
public function lat() { return $this->fLat; }
public function lon() { return $this->fLon; }
public function radius() { return $this->fRadius; }
public function distanceSQL($sObj)
{
return 'ST_Distance('.$this->sSQL.", $sObj)";
}
/**
* Check that the coordinates are valid WSG84 coordinates.
*/
public function isValid()
{
return ($this->fLat <= 90.1
&& $this->fLat >= -90.1
&& $this->fLon <= 180.1
&& $this->fLon >= -180.1);
}
/**
* Extract a coordinate point from a query string.
*
* If a coordinate is found an array of a new NearPoint and the
* remaining query is returned or false otherwise.
*/
public static function extractFromQuery($sQuery)
{
// Do we have anything that looks like a lat/lon pair?
// returns array(lat,lon,query_with_lat_lon_removed)
// or null
$sFound = null;
$fQueryLat = null;
$fQueryLon = null;
if (preg_match('/\\b([NS])[ ]+([0-9]+[0-9.]*)[° ]+([0-9.]+)?[′\']*[, ]+([EW])[ ]+([0-9]+)[° ]+([0-9]+[0-9.]*)[′\']*?\\b/', $sQuery, $aData)) {
/* 1 2 3 4 5 6
* degrees decimal minutes
* N 40 26.767, W 79 58.933
* N 40°26.767′, W 79°58.933′
*/
$sFound = $aData[0];
$fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60);
$fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[5] + $aData[6]/60);
} elseif (preg_match('/\\b([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\']*[ ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\' ]+([EW])\\b/', $sQuery, $aData)) {
/* 1 2 3 4 5 6
* degrees decimal minutes
* 40 26.767 N, 79 58.933 W
* 40° 26.767′ N 79° 58.933′ W
*/
$sFound = $aData[0];
$fQueryLat = ($aData[3]=='N'?1:-1) * ($aData[1] + $aData[2]/60);
$fQueryLon = ($aData[6]=='E'?1:-1) * ($aData[4] + $aData[5]/60);
} elseif (preg_match('/\\b([NS])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*[, ]+([EW])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*\\b/', $sQuery, $aData)) {
/* 1 2 3 4 5 6 7 8
* degrees decimal seconds
* N 40 26 46 W 79 58 56
* N 40° 26′ 46″, W 79° 58′ 56″
*/
$sFound = $aData[0];
$fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60 + $aData[4]/3600);
$fQueryLon = ($aData[5]=='E'?1:-1) * ($aData[6] + $aData[7]/60 + $aData[8]/3600);
} elseif (preg_match('/\\b([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([EW])\\b/', $sQuery, $aData)) {
/* 1 2 3 4 5 6 7 8
* degrees decimal seconds
* 40 26 46 N 79 58 56 W
* 40° 26′ 46″ N, 79° 58′ 56″ W
*/
$sFound = $aData[0];
$fQueryLat = ($aData[4]=='N'?1:-1) * ($aData[1] + $aData[2]/60 + $aData[3]/3600);
$fQueryLon = ($aData[8]=='E'?1:-1) * ($aData[5] + $aData[6]/60 + $aData[7]/3600);
} elseif (preg_match('/\\b([NS])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*[, ]+([EW])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*\\b/', $sQuery, $aData)) {
/* 1 2 3 4
* degrees decimal
* N 40.446° W 79.982°
*/
$sFound = $aData[0];
$fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2]);
$fQueryLon = ($aData[3]=='E'?1:-1) * ($aData[4]);
} elseif (preg_match('/\\b([0-9]+[0-9]*\\.[0-9]+)[° ]+([NS])[, ]+([0-9]+[0-9]*\\.[0-9]+)[° ]+([EW])\\b/', $sQuery, $aData)) {
/* 1 2 3 4
* degrees decimal
* 40.446° N 79.982° W
*/
$sFound = $aData[0];
$fQueryLat = ($aData[2]=='N'?1:-1) * ($aData[1]);
$fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[3]);
} elseif (preg_match('/(\\[|^|\\b)(-?[0-9]+[0-9]*\\.[0-9]+)[, ]+(-?[0-9]+[0-9]*\\.[0-9]+)(\\]|$|\\b)/', $sQuery, $aData)) {
/* 1 2 3 4
* degrees decimal
* 12.34, 56.78
* [12.456,-78.90]
*/
$sFound = $aData[0];
$fQueryLat = $aData[2];
$fQueryLon = $aData[3];
} else {
return False;
}
$oPt = new NearPoint($fQueryLat, $fQueryLon);
if (!$oPt->isValid()) return False;
$sQuery = trim(str_replace($sFound, ' ', $sQuery));
return array('pt' => $oPt, 'query' => $sQuery);
}
}

83
lib/lib.php
View File

@@ -599,89 +599,6 @@ function addQuotes($s)
return "'".$s."'";
}
function validLatLon($fLat, $fLon)
{
return ($fLat <= 90.1 && $fLat >= -90.1 && $fLon <= 180.1 && $fLon >= -180.1);
}
function looksLikeLatLonPair($sQuery)
{
// Do we have anything that looks like a lat/lon pair?
// returns array(lat,lon,query_with_lat_lon_removed)
// or null
$sFound = null;
$fQueryLat = null;
$fQueryLon = null;
if (preg_match('/\\b([NS])[ ]+([0-9]+[0-9.]*)[° ]+([0-9.]+)?[′\']*[, ]+([EW])[ ]+([0-9]+)[° ]+([0-9]+[0-9.]*)[′\']*?\\b/', $sQuery, $aData)) {
/* 1 2 3 4 5 6
* degrees decimal minutes
* N 40 26.767, W 79 58.933
* N 40°26.767′, W 79°58.933′
*/
$sFound = $aData[0];
$fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60);
$fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[5] + $aData[6]/60);
} elseif (preg_match('/\\b([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\']*[ ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\' ]+([EW])\\b/', $sQuery, $aData)) {
/* 1 2 3 4 5 6
* degrees decimal minutes
* 40 26.767 N, 79 58.933 W
* 40° 26.767′ N 79° 58.933′ W
*/
$sFound = $aData[0];
$fQueryLat = ($aData[3]=='N'?1:-1) * ($aData[1] + $aData[2]/60);
$fQueryLon = ($aData[6]=='E'?1:-1) * ($aData[4] + $aData[5]/60);
} elseif (preg_match('/\\b([NS])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*[, ]+([EW])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*\\b/', $sQuery, $aData)) {
/* 1 2 3 4 5 6 7 8
* degrees decimal seconds
* N 40 26 46 W 79 58 56
* N 40° 26′ 46″, W 79° 58′ 56″
*/
$sFound = $aData[0];
$fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60 + $aData[4]/3600);
$fQueryLon = ($aData[5]=='E'?1:-1) * ($aData[6] + $aData[7]/60 + $aData[8]/3600);
} elseif (preg_match('/\\b([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([EW])\\b/', $sQuery, $aData)) {
/* 1 2 3 4 5 6 7 8
* degrees decimal seconds
* 40 26 46 N 79 58 56 W
* 40° 26′ 46″ N, 79° 58′ 56″ W
*/
$sFound = $aData[0];
$fQueryLat = ($aData[4]=='N'?1:-1) * ($aData[1] + $aData[2]/60 + $aData[3]/3600);
$fQueryLon = ($aData[8]=='E'?1:-1) * ($aData[5] + $aData[6]/60 + $aData[7]/3600);
} elseif (preg_match('/\\b([NS])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*[, ]+([EW])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*\\b/', $sQuery, $aData)) {
/* 1 2 3 4
* degrees decimal
* N 40.446° W 79.982°
*/
$sFound = $aData[0];
$fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2]);
$fQueryLon = ($aData[3]=='E'?1:-1) * ($aData[4]);
} elseif (preg_match('/\\b([0-9]+[0-9]*\\.[0-9]+)[° ]+([NS])[, ]+([0-9]+[0-9]*\\.[0-9]+)[° ]+([EW])\\b/', $sQuery, $aData)) {
/* 1 2 3 4
* degrees decimal
* 40.446° N 79.982° W
*/
$sFound = $aData[0];
$fQueryLat = ($aData[2]=='N'?1:-1) * ($aData[1]);
$fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[3]);
} elseif (preg_match('/(\\[|^|\\b)(-?[0-9]+[0-9]*\\.[0-9]+)[, ]+(-?[0-9]+[0-9]*\\.[0-9]+)(\\]|$|\\b)/', $sQuery, $aData)) {
/* 1 2 3 4
* degrees decimal
* 12.34, 56.78
* [12.456,-78.90]
*/
$sFound = $aData[0];
$fQueryLat = $aData[2];
$fQueryLon = $aData[3];
}
if (!validLatLon($fQueryLat, $fQueryLon)) return;
$sQuery = trim(str_replace($sFound, ' ', $sQuery));
return array('lat' => $fQueryLat, 'lon' => $fQueryLon, 'query' => $sQuery);
}
function geometryText2Points($geometry_as_text, $fRadius)
{