private $sSQL;
+
public function __construct($lat, $lon, $radius = 0.1)
{
$this->fLat = (float)$lat;
$this->sSQL = 'ST_SetSRID(ST_Point('.$this->fLon.','.$this->fLat.'),4326)';
}
- public function lat() { return $this->fLat; }
+ public function lat()
+ {
+ return $this->fLat;
+ }
- public function lon() { return $this->fLon; }
+ public function lon()
+ {
+ return $this->fLon;
+ }
- public function radius() { return $this->fRadius; }
+ public function radius()
+ {
+ return $this->fRadius;
+ }
public function distanceSQL($sObj)
{
return 'ST_Distance('.$this->sSQL.", $sObj)";
}
+ public function withinSQL($sObj)
+ {
+ return sprintf('ST_DWithin(%s, %s, %F)', $sObj, $this->sSQL, $this->fRadius);
+ }
+
/**
* Check that the coordinates are valid WSG84 coordinates.
+ *
+ * @return bool True if the coordinates are correctly bounded.
*/
public function isValid()
{
*
* If a coordinate is found an array of a new NearPoint and the
* remaining query is returned or false otherwise.
+ *
+ * @param string $sQuery Query to scan.
+ *
+ * @return array|false If a coordinate was found, an array with
+ * `pt` as the NearPoint coordinates and `query`
+ * with the remaining query string. False otherwiese.
*/
public static function extractFromQuery($sQuery)
{
$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
+ if (preg_match('/\\s*([NS])[ ]+([0-9]+[0-9.]*)[° ]+([0-9.]+)?[′\']*[, ]+([EW])[ ]+([0-9]+)[° ]+([0-9]+[0-9.]*)[′\']*\\s*/', $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
+ } elseif (preg_match('/\\s*([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\']*[ ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\' ]+([EW])\\s*/', $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
+ } elseif (preg_match('/\\s*([NS])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*[, ]+([EW])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*\\s*/', $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
+ } elseif (preg_match('/\\s*([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([EW])\\s*/', $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
+ } elseif (preg_match('/\\s*([NS])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*[, ]+([EW])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*\\s*/', $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
+ } elseif (preg_match('/\\s*([0-9]+[0-9]*\\.[0-9]+)[° ]+([NS])[, ]+([0-9]+[0-9]*\\.[0-9]+)[° ]+([EW])\\s*/', $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, $aData)) {
- /* 1 2 3 4
+ } elseif (preg_match('/(\\s*\\[|^\\s*|\\s*)(-?[0-9]+[0-9]*\\.[0-9]+)[, ]+(-?[0-9]+[0-9]*\\.[0-9]+)(\\]\\s*|\\s*$|\\s*)/', $sQuery, $aData)) {
+ /* 1 2 3 4
* degrees decimal
* 12.34, 56.78
+ * 12.34 56.78
* [12.456,-78.90]
*/
$sFound = $aData[0];
$fQueryLat = $aData[2];
$fQueryLon = $aData[3];
} else {
- return False;
+ return false;
}
$oPt = new NearPoint($fQueryLat, $fQueryLon);
- if (!$oPt->isValid()) return False;
+ if (!$oPt->isValid()) return false;
$sQuery = trim(str_replace($sFound, ' ', $sQuery));
return array('pt' => $oPt, 'query' => $sQuery);
}
-
}