@chuck:
- thanks for the "cumulative" key word - hadn't found that so far -
works perfectly
- as for the Phenology Extension, I'm using that for one of my stations
already for quite some time - that's where my fill question came from
but I can see that with plot_type = bar and aggregate_interval = 300 and
width = 2 the area under the curve is also fully filled 😎
even with the default weewx image generator
what remains open is the question about how to reset the cumulative
graph to 0 at midnight
On 21.10.2022 18:54, Chuck Rhode wrote:
On Fri, 21 Oct 2022 11:16:31 +0200
Rainer Lang <lang.rai...@gmail.com> wrote:
> how can I make the imagegenerator create a plot where the rain is
> shown as accumulated rain by ... a line as top delimiter and the
> area below filled with some color
It's trivial to generate a cumulative bar plot.
> [[[dayrain]]]
> yscale = None, None, 0.02
> plot_type = bar
> [[[[rain]]]]
> aggregate_type = cumulative
> aggregate_interval = 900 # 15 minutes
> label = Rain (hourly accumulation)
It is not so trivial to replace the WeeWX Image Generator with mine
that I ship with my Phenology Extension. This adds support for the
fill_curve option ... among a great many other things.
> [[[dayrain]]]
> yscale = None, None, 0.02
> plot_type = line
> fill_curve = True
> fill_color = "#72b2c420"
> [[[[rain]]]]
> aggregate_type = cumulative
> aggregate_interval = 900 # 15 minutes
> label = Rain (hourly accumulation)
Which produces the following screenshot seen here dressed in my
"Sperry 1100" theme:
o https://lacusveris.com/Screenshot%20from%202022-10-21%2011-23-42.png
"How to" details may be found at:
o https://lacusveris.com/Phenology/weewx_extension.shtml
One might say, though, that this approach is overkill in every sense.
Not only is installation and use of the Phenology Extension a fraught
process, but the Phenology Image Generator itself operates at somewhat
below peak efficiency. And I note from the above screenshot that I
have not stretched the curve fill to include the ramp-up from the last
missing value on the left. Oh, well ....
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