Color trails by time

[nkronenfeld]

I think it would be useful to color raster trail pyramids, not by count, but by time.

This would use a min or max binning analytic instead of a sum, and would require a functional input to the line binner to spread values across the line (or just take one of the two endpoints).

I think the structure to do this is all in place, or nearly so, it's mostly a question of the proper configuration to pull out the time as the value of the line, and creating a spreader function to spread this time across the line appropriately.