ol3 utfgrid OpenLayers 3的UTF网格支持

ol3-utfgrid OpenLayers 3的UTF网格支持应用程序接口构造函数new ol.utfGrid({"map":ol.Map,"url":"utfgrid_url_source"}) getData方法ol.utfGrid.getData(lonlat)自定义默认的onMove方法new ol.utfGrid({"url":"utfgrid_url_source"}) ; ol.utfGrid.onMove = function(evt){console.log(evt.coordinate)}; ol.utfGrid.addTo(ol.Map); new ol.utfGrid({"url":"utfgrid_url_source"}) ; ol.utfGrid.onMove = function(evt){console.log(evt.coord