defines the heatmap configuration, contains various Google API properties
webix.ui({
//provide your own Google API key
key:"AIzaSyAi0oVNVO-e603aUY8SILdD4v9bVBkmiTg",
view:"google-map",
id:"map",
zoom:13,
center:[ 37.774546, -122.433523 ],
layerType:"heatmap",
heatmapConfig:{
opacity:"0.4"
},
url:"data/heatmap.json"
});