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Rev 978 Rev 979
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	private static $profondeurMax = 8;
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	private static $profondeurMax = 8;
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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 $listeNoeudsSelectionnes = array();
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	private static $listeNoeudsSelectionnes = array();
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	private static $pointsDejaTraites = array();
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	/*
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	/*
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	  +---------+---------+
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	  +---------+---------+
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	  Quatres cadrans sont considérés par le quad tree
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	  Quatres cadrans sont considérés par le quad tree
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	  * = centre de la fenetre
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	  * = centre de la fenetre
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	 */
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	 */
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	public static function creerGroupesQuadtree($markers, $neLat, $neLng, $swLat, $swLng, $zoom = 3) {
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	public static function creerGroupesQuadtree(&$markers, $neLat, $neLng, $swLat, $swLng, $zoom = 3) {
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		if(count($markers) > self::$seuilClusterisation) {
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		if(count($markers) > self::$seuilClusterisation) {
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		} else {
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		} else {
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			self::$profondeurMax = 1;
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			self::$profondeurMax = 1;
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		}
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		}
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	}
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	}
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	public static function getNbElements() {
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		return self::$nbElements;
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	}
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	/**
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	/**
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	 *
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	 *
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	 * @param mixed $noeud Le noeud à traiter par le quadtree
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	 * @param mixed $noeud Le noeud à traiter par le quadtree
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	 * @param float $neLat Latitude du coin nord est de la fenetre
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	 * @param float $neLat Latitude du coin nord est de la fenetre
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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 &$point) {
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				self::$nbElements['observations']++;
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				self::$nbElements[$point['type_emplacement']]++;
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		foreach ($noeud['points'] as &$point) {
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				unset($point['type_emplacement']);
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			$cadran = self::obtenirCadranPourPoint($latCentre, $lngCentre, $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::ajouterFils($noeud,$cadran,$point);
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		}
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		}
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		$noeud[$cadran]['nbrePoints']++;
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		$noeud[$cadran]['nbrePoints']++;
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		$noeud[$cadran]['latMoyenne'] += $point['lat'];
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		$noeud[$cadran]['latMoyenne'] += $point['lat'];
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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) {
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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 = $noeud['points'][0];
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			$groupe = $noeud['points'][0];
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		}
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		}
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		return $groupe;
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		return $groupe;
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	}
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	}
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	private static function estUnParentFeuilles($noeud) {
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	private static function estUnParentFeuilles(&$noeud) {
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		return  self::estUneFeuille($noeud['A']) &&
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		return  self::estUneFeuille($noeud['A']) &&
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				self::estUneFeuille($noeud['B']) &&
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				self::estUneFeuille($noeud['B']) &&
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				self::estUneFeuille($noeud['C']) &&
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				self::estUneFeuille($noeud['C']) &&
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				self::estUneFeuille($noeud['D']);
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				self::estUneFeuille($noeud['D']);
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	}
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	}
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	private static function estUneFeuille($noeud) {
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	private static function estUneFeuille(&$noeud) {
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		return $noeud == null || ($noeud['A'] == null && $noeud['B'] == null && $noeud['C'] == null && $noeud['D'] == null);
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		return $noeud == null || ($noeud['A'] == null && $noeud['B'] == null && $noeud['C'] == null && $noeud['D'] == null);
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	}
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	}
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}
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}