From 9a6e7004b0d07f7b13fe90c39305cb9354784255 Mon Sep 17 00:00:00 2001
From: danzel <danzel@localhost.geek.nz>
Date: Mon, 20 Aug 2012 10:18:34 +1200
Subject: [PATCH] Respect disableClusteringAtZoom when adding individual layers

---
 src/MarkerCluster.js | 37 +++++++++++++++++++++++--------------
 1 file changed, 23 insertions(+), 14 deletions(-)

diff --git a/src/MarkerCluster.js b/src/MarkerCluster.js
index f900e724c..3d7500bbb 100644
--- a/src/MarkerCluster.js
+++ b/src/MarkerCluster.js
@@ -107,8 +107,9 @@ L.MarkerCluster = L.Marker.extend({
 	//  false: wasn't able to put this marker in
 	//  a MarkerCluster: the visible parent of the marker
 	_recursivelyAddLayer: function (layer, zoom) {
-		var map = this._group._map,
-			maxClusterRadius = this._group.options.maxClusterRadius,
+		var group = this._group,
+			map = group._map,
+			maxClusterRadius = group.options.maxClusterRadius,
 			result = false,
 			i;
 
@@ -127,21 +128,24 @@ L.MarkerCluster = L.Marker.extend({
 		//Couldn't add it to a child, but it should be part of us (this._zoom -> we are the root node)
 		if (!result && (this._canAcceptPosition(layer.getLatLng(), zoom) || ('_zoom' in this))) {
 
-			//Add to ourself instead
-			var layerPos = map.project(layer.getLatLng(), zoom + 1),
-				sqDist = this._group._sqDist;
+			//If we are allowed to cluster at our childs level
+			if (zoom + 1 !== group.options.disableClusteringAtZoom) {
 
-			//var distanceGrid = new L.DistanceGrid(maxClusterRadius);
-			for (i = this._markers.length - 1; i >= 0; i--) {
-				var m = this._markers[i];
-				if (sqDist(layerPos, map.project(m.getLatLng(), zoom + 1)) < (maxClusterRadius * maxClusterRadius)) {
-					result = m;
-					this._markers.splice(i, 1);
-					this._childCount--;
-					break;
+				//Add to ourself instead
+				var layerPos = map.project(layer.getLatLng(), zoom + 1),
+				    sqDist = this._group._sqDist;
+
+				//var distanceGrid = new L.DistanceGrid(maxClusterRadius);
+				for (i = this._markers.length - 1; i >= 0; i--) {
+					var m = this._markers[i];
+					if (sqDist(layerPos, map.project(m.getLatLng(), zoom + 1)) < (maxClusterRadius * maxClusterRadius)) {
+						result = m;
+						this._markers.splice(i, 1);
+						this._childCount--;
+						break;
+					}
 				}
 			}
-
 			//result = distanceGrid.getNearObject(map.project(layer.getLatLng(), zoom + 1));
 
 			if (result) {
@@ -158,6 +162,11 @@ L.MarkerCluster = L.Marker.extend({
 					maxZoom = map.getMaxZoom(),
 					newResult,
 					finalResult = (zoom === wantedZoom) ? result : true;
+
+				if (group.options.disableClusteringAtZoom) {
+					maxZoom = group.options.disableClusteringAtZoom - 2;
+				}
+
 				while (zoom < maxZoom) {
 					zoom++;