Geoserver is drawing from a PostGIS database to generate a heatmap using this SLD extension. Leaflet then overlays the heatmap over the base layer.
Question: How can you determine the value at a particular spot on the heatmap? This value to display will be
color ramp value X * constant C. In other words, how can we determine the color ramp value at that particular spot on the heatmap?
There's probably other methods of finding this value without using the heatmap's color ramp mapping.