Belchertown & Highcharts - multiple yAxis

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Xant

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Nov 7, 2019, 1:59:50 PM11/7/19

to weewx-user

There were previous educated discussion regarding the SolarRadiation vs Illumination (https://groups.google.com/forum/#!newtopic/weewx-user). Upon that, even been different observations, one may consider a good approximation/estimation of "Illumination / SolarRadiation =~ 119-120" multiplier.

Thus, under Belchertown skin generated 2 plots, that are similar but just value "multiplier" as the following (low value observations due to very cloudy day):

Belchertown 'graph.conf':

    [[chart1]]
        title = SolarRad & UV
        [[[radiation]]]
            name = Solar Radiation
            color = "#ffc83f"
            zIndex = 1
        [[[maxSolarRad]]]
            name = Theoretical MaxSolarRad
            type = area
            color = "#f7f2b4"
        [[[UV]]]
            name = UV Index
            yAxis = 1
            yAxis_min = 0
            yAxis_max = 16
            color = "#90ed7d"
            zIndex = 2


    [[chart2]]
        title = Illuminance
        type = spline
        yAxis_min = 0
        [[[illuminance]]]
            name = Illuminance
            yIndex = 1
        [[[maxSolarRad]]]
            name = Theoretical MaxIlluminance
            type = area
            color = "#f7f2b4"
            yAxis = 0
            yAxis_label = "Illuminance (lux)"
            observation_type = 119.0*maxSolarRad
        [[[UV]]]
            name = UV Index
            yAxis = 1
            yAxis_min = 0
            yAxis_max = 16
            color = "#90ed7d"
            zIndex = 2

Although accomplished to estimate Illuminance from SolarRadiation, it's a bit "non-sense" to have both similar graphs plotted. So, searching for a solution to have both at same graph with multiple yAxis.

Found the following posting in Highcharts demo, but could not reproduce (or translate) into Belchertown yet.