Hello Chris, Thanks a lot for your reply. When, what i'm trying to implement is very vague at this moment, its just an idea, but I will try to elaborate. We will have a tool which does some processing. As an output, it will produce list of locations (possibly latitude,longitude) and some data (possibly a decimal number) regarding those locations. Based on this data, we'd like to indicate the locations with high numerical values as "hot" whereas locations with low values as "cold". Possible data can be as follows: Location Latitude longitude Data Value New york 40.77 73.98 0.98 JFK,NY 40.65 73.78 0.75 Newburgh 41.50 74.10 0.02 Rochester 43.12 77.67 0.54 And so on. We will possibly have categories, for ex. locations with data value between 0 - 0.20 as cold, between 0.21 to 0.50 as warm, between 0.75 to 1.0 as hot, etc. Is this something that can be done using the heatmap later? Thanks in advance. Regards, Reshma
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