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<?php
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<?php
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class CartoGroupage {
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class CartoGroupage {
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	const MARQUEUR_GROUPE = 'GROUPE';
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	const MARQUEUR_COMMUNE = 'COMMUNE';
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	const MARQUEUR_STATION = 'STATION';
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	private static $seuilClusterisation = 200;
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	private static $seuilClusterisation = 200;
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	private static $zoomDefaut = 3;
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	private static $zoomDefaut = 3;
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	private static $zoomMaxClustering = 12;
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	private static $zoomMaxClustering = 12;
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	private static $pasZoomDefaut = 1;
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	private static $pasZoomDefaut = 1;
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	private static $pasCorrectionCentre = null;
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	private static $pasCorrectionCentre = null;
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	private static $coefficientReductionPas = null;
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	private static $coefficientReductionPas = null;
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	private static $coefficientProfondeurMax = null;
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	private static $coefficientProfondeurMax = null;
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	private static $nbElements = array('stations' => 0,'communes' => 0, 'observations' => 0);
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	private static $nbElements = array('stations' => 0,'communes' => 0, 'observations' => 0);
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	private static $listeNoeudsSelectionnes = array();
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	private static $pointsDejaTraites = array();
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	private static $listeNoeudsSelectionnes = array();
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	private static $bornesMax = array('latMin' => null, 'lngMin' => null, 'latMax' => null, 'lngMax' => null);
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	private static $bornesMax = array('latMin' => null, 'lngMin' => null, 'latMax' => null, 'lngMax' => null);
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	private static $id_traites = array();
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	/*
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	/*
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	  +---------+---------+
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	  +---------+---------+
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	  |         |         |
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	  |         |         |
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	  |    A    |    B    |
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	  |    A    |    B    |
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			$noeudRacine = array('nbrePoints' => count($markers), 'points' => $markers);
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			$noeudRacine = array('nbrePoints' => count($markers), 'points' => $markers);
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			self::attribuerAuCadran($noeudRacine, $neLat, $neLng, $swLat, $swLng);
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			self::attribuerAuCadran($noeudRacine, $neLat, $neLng, $swLat, $swLng);
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		} else {
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			foreach($markers as &$marker) {
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		} else {
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				if(!self::estUnPointAExclure($marker)) {
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			foreach($markers as $marker) {
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					$emplacement = self::formaterPointPourAjout(&$marker);
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				self::mettreAJourBornes(&$marker);
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					self::mettreAJourBornes(&$marker);
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					$points = array($marker);
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					$noeudSimple = array('points' => $points, 'nbrePoints' => 1);
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					self::$nbElements[$emplacement]++;
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				$points = array($marker);
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					self::$listeNoeudsSelectionnes[] = self::ajouterGroupeOuPoint($noeudSimple);
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				$noeudSimple = array('points' => $points, 'nbrePoints' => 1);
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				self::$nbElements['observations']++;
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				$emplacement = isset($marker['type_emplacement']) ? $marker['type_emplacement'] : self::obtenirTypeEmplacementParId(&$marker);
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				self::$nbElements[$emplacement]++;
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				unset($marker['type_emplacement']);
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				}
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				self::$listeNoeudsSelectionnes[] = self::ajouterGroupeOuPoint($noeudSimple);
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				self::$nbElements['observations']++;
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			}
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		}
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			}
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		}
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		return self::$listeNoeudsSelectionnes;
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		return self::$listeNoeudsSelectionnes;
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	}
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	}
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	private static function attribuerAuCadran(&$noeud, $neLat, $neLng, $swLat, $swLng, $profondeur = 0) {
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	private static function attribuerAuCadran(&$noeud, $neLat, $neLng, $swLat, $swLng, $profondeur = 0) {
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		$latCentre = round((($neLat+$swLat)/2)/self::$pasCorrectionCentre,0)*self::$pasCorrectionCentre;
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		$latCentre = round((($neLat+$swLat)/2)/self::$pasCorrectionCentre,0)*self::$pasCorrectionCentre;
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		$lngCentre = round((($neLng+$swLng)/2)/self::$pasCorrectionCentre,0)*self::$pasCorrectionCentre;
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		$lngCentre = round((($neLng+$swLng)/2)/self::$pasCorrectionCentre,0)*self::$pasCorrectionCentre;
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		foreach ($noeud['points'] as &$point) {
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			if(!self::estUnPointAExclure($point)) {
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		foreach ($noeud['points'] as &$point) {
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				self::mettreAJourBornes(&$point);
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				self::$nbElements['observations']++;
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				$emplacement = isset($point['type_emplacement']) ? $point['type_emplacement'] : self::obtenirTypeEmplacementParId(&$point);
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				self::$nbElements[$emplacement]++;
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				$emplacement = self::formaterPointPourAjout(&$point);
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				unset($point['type_emplacement']);
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				self::mettreAJourBornes(&$point);
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				$cadran = self::obtenirCadranPourPoint($latCentre, $lngCentre, $point);
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				self::ajouterFils($noeud,$cadran,$point);
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				self::$nbElements[$emplacement]++;
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				$cadran = self::obtenirCadranPourPoint($latCentre, $lngCentre, $point);
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			}
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				self::ajouterFils($noeud,$cadran,$point);
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			self::$nbElements['observations']++;
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		}
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		}
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		if(self::estUnParentFeuilles($noeud)) {
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		if(self::estUnParentFeuilles($noeud)) {
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			self::$listeNoeudsSelectionnes[] = self::ajouterGroupeOuPoint($noeud);
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			self::$listeNoeudsSelectionnes[] = self::ajouterGroupeOuPoint($noeud);
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		}
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		}
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	}
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	}
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	private static function estUnPointAExclure(&$point) {
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	private static function obtenirTypeEmplacementParId($point) {
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		return self::estSensible($point) &&
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		self::coordonneesCommuneSontNulles($point);
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	}
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	private static function coordonneesCommuneSontNulles(&$point) {
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		$tableau_point_id = explode(':',$point['id'],2);
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		$coord_nulles = ($point['wgs84_latitude'] == null ||
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		$point['wgs84_latitude'] == '' ||
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		$point['wgs84_longitude'] == null ||
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		switch($tableau_point_id[0]) {
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		$point['wgs84_longitude'] == '');
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		return $coord_nulles;
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	}
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	private static function coordonneesSontNulles(&$point) {
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		$coord_nulles = ($point['coord_x'] == '000null' ||
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			case 'STATION':
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				$point['coord_x'] == '' ||
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				$point['coord_y'] == '000null' ||
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				$point['coord_y'] == '');
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		return $coord_nulles;
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	}
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	private static function estSensible(&$point) {
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				$type_emplacement = 'stations';
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		$sensible = isset($point['mots_cles_texte']) && substr_count($point['mots_cles_texte'], 'sensible') != 0;
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		return $sensible;
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	}
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			break;
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	private static function formaterNomStation(&$point) {
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		$station = '';
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			case 'COMMUNE':
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		if($point['station'] != '' && $point['station'] != '000null') {
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				$type_emplacement = 'communes';
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			$station = $point['station'];
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		} else {
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			$station = $point['location'].(($point['id_location'] != '' && $point['id_location'] != '000null') ? '('.$point['id_location'].')' : '');
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		}
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		return $station;
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	}
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	private static function formaterPointPourAjout(&$point) {
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		if(isset($point['type_emplacement'])) {
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			break;
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			return $point['type_emplacement'];
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		}
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		if(self::coordonneesSontNulles($point) || self::estSensible($point)) {
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				$point['id'] = self::MARQUEUR_COMMUNE.':'.$point['wgs84_latitude'].'|'.$point['wgs84_longitude'];
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				$point['type_emplacement'] = 'communes';
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				$point['lat'] = (float)$point['wgs84_latitude'];
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				$point['lng'] = (float)$point['wgs84_longitude'];
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		} else {
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			$point_allege = array();
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			$point_allege['id'] = self::MARQUEUR_STATION.':'.$point['coord_x'].'|'.$point['coord_y'];
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			$point_allege['type_emplacement'] = 'stations';
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			$point_allege['nom'] = self::formaterNomStation($point);
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			$point_allege['lat'] = (float)$point['coord_x'];
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			$point_allege['lng'] = (float)$point['coord_y'];
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			$point = $point_allege;
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		}
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		}
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		return $type_emplacement;
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		return $point['type_emplacement'];
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	}
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	}
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	private function obtenirCadranPourPoint($latCentre,$lngCentre, &$point) {
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	private function obtenirCadranPourPoint($latCentre,$lngCentre, &$point) {
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		$noeud[$cadran]['lngMoyenne'] += $point['lng'];
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		$noeud[$cadran]['lngMoyenne'] += $point['lng'];
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	}
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	}
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	private static function ajouterGroupeOuPoint(&$noeud) {
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	private static function ajouterGroupeOuPoint(&$noeud) {
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		$groupe = array();
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		$groupe = array();
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		if ($noeud['nbrePoints'] > 1) {
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		if ($noeud['nbrePoints'] > 1 && isset($noeud['latMoyenne']) && isset($noeud['lngMoyenne'])) {
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			$groupe['lat'] = $noeud['latMoyenne']/$noeud['nbrePoints'];
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			$groupe['lat'] = $noeud['latMoyenne']/$noeud['nbrePoints'];
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			$groupe['lng'] = $noeud['lngMoyenne']/$noeud['nbrePoints'];
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			$groupe['lng'] = $noeud['lngMoyenne']/$noeud['nbrePoints'];
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			$groupe['id'] = 'GROUPE:'.$groupe['lat'].';'.$groupe['lng'];
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			$groupe['id'] = 'GROUPE:'.$groupe['lat'].';'.$groupe['lng'];
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			$groupe['nbreMarqueur'] = $noeud['nbrePoints'];
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			$groupe['nbreMarqueur'] = $noeud['nbrePoints'];