I need to plot wind speed, wind gust and barometric pressure on a single graph. The problem is that they have such different yscales that differences in barometric pressure aren't visible.
For example, see the attached chart, which shows the wind ranging from about 5 to 15 mph, and the barometric pressure ranging from about 30.15 to 30.2 inHG. When those ranges are plotted together the barometeric pressure appears as a straight line. I've been playing with editing genplot.py to produce a transparent plot of just the barometric pressure and then pasting it over a plot of the wind graph, but thinking there must be an easier way. I don't imagine anyone has any ideas? Ugly hacks are invited. And note that I don't need to add any Y axis labels for the barometer, it's enough just to plot the line. And I don't need auto yscale ranging, I'll just set it to the min and max pressures on record for the area (28.8 and 30.6). -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
