Heatmap with Spark Streaming

[UMESH CHAUDHARY]

I have just started using Spark Streaming and done few POCs. It is fairly
easy to implement. I was thinking of presenting the data using some smart
graphing & dashboarding tools e.g. Graphite or Grafna, but they don't have
heat-maps. I also looked at Zeppelin <http://zeppelin-project.org/> , but
unable to found any heat-map functionality. Could you please suggest any
data visualization tools using Heat-map and Spark streaming.