5858function DataLayerClusterer ( optOptions ) {
5959 DataLayerClusterer . extend ( DataLayerClusterer , google . maps . OverlayView ) ;
6060 var options = optOptions || { } ;
61- 62- this . clusters_ = [ ] ;
63- this . sizes = [ 53 , 56 , 66 , 78 , 90 ] ;
64- this . styles_ = [ ] ;
65- this . ready_ = false ;
66- this . map = options . map || null ;
67- this . gridSize_ = options . gridSize || 60 ;
68- this . minClusterSize_ = options . minimumClusterSize || 2 ;
69- this . maxZoom_ = options . maxZoom || null ;
70- this . className_ = options . className || 'cluster' ;
71- this . styles_ = options . styles || [ ] ;
72- this . imagePath_ = options . imagePath || DataLayerClusterer . MARKER_CLUSTER_IMAGE_PATH_ ;
73- this . imageExtension_ = options . imageExtension || DataLayerClusterer . MARKER_CLUSTER_IMAGE_EXTENSION_ ;
74- this . zoomOnClick_ = true ;
75- if ( options . zoomOnClick !== undefined ) {
76- this . zoomOnClick_ = options . zoomOnClick ;
77- }
78- this . averageCenter_ = true ;
79- if ( options . averageCenter !== undefined ) {
80- this . averageCenter_ = options . averageCenter ;
81- }
82- 61+ DataLayerClusterer . extend ( DataLayerClusterer , {
62+ clusters_ : [ ] ,
63+ sizes : [ 53 , 56 , 66 , 78 , 90 ] ,
64+ styles_ : [ ] ,
65+ ready_ : false ,
66+ map : options . map || null ,
67+ gridSize_ : options . gridSize || 60 ,
68+ minClusterSize_ : options . minimumClusterSize || 2 ,
69+ maxZoom_ : options . maxZoom || null ,
70+ className_ : options . className || 'cluster' ,
71+ styles_ : options . styles || [ ] ,
72+ imagePath_ : options . imagePath || DataLayerClusterer . MARKER_CLUSTER_IMAGE_PATH_ ,
73+ imageExtension_ : options . imageExtension || DataLayerClusterer . MARKER_CLUSTER_IMAGE_EXTENSION_ ,
74+ zoomOnClick_ : options . zoomOnClick !== undefined ? options . zoomOnClick : true ,
75+ averageCenter_ : options . averageCenter !== undefined ? options . averageCenter : true ,
76+ _dataLayer : new google . maps . Data ( )
77+ } ) ;
8378 this . setupStyles_ ( ) ;
84- this . _dataLayer = new google . maps . Data ( ) ;
8579 this . _dataLayer . setStyle ( DataLayerClusterer . HIDDEN_FEATURE ) ;
86- 8780 if ( this . map !== null ) {
8881 this . setMap ( this . map ) ;
8982 }
@@ -99,11 +92,14 @@ DataLayerClusterer.HIDDEN_FEATURE = {
9992 visible : false
10093} ;
10194
102- 103- 104- 10595/* ---- Public methods ---- */
10696
97+ /**
98+ * Set the visibility of the entire data layer.
99+ *
100+ * @param {bool } v
101+ * @return {void }
102+ */
107103DataLayerClusterer . prototype . setVisible = function ( v ) {
108104 if ( ! v ) {
109105 this . map__ = this . getMap ( ) ;
@@ -1103,4 +1099,5 @@ DataLayerClusterer.prototype.calculator_ = function(features, numStyles) {
11031099 } ;
11041100} ;
11051101
1102+ // Class exposure
11061103window . DataLayerClusterer = DataLayerClusterer ;
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