Belchertown Solar Radiation Graph and High Chart Questions

Patrick Mendiuk

unread,

Jun 21, 2019, 5:24:45 PM6/21/19

to weewx-user

I added the Solar Radiation and UV Index to my graphs.conf and have my first plot:

Where is the pyephem calculation for theoretical max radiation observation being done? I would like to get the plot data to agree.

Is possible to add illuminance to the same plot and add another Y axis scale?

I would also like to adjust the resolution for looking at data points in High Chart plots:

-Patrick

Pat

unread,

Jun 22, 2019, 9:04:07 AM6/22/19

to weewx-user

> Where is the pyephem calculation for theoretical max radiation observation being done? I would like to get the plot data to agree.

I'm not 100% familiar with pyephem. Perhaps someone else can answer this? I know it's based on your lat/lon inside weewx.conf to make those calculations

> Is possible to add illuminance to the same plot and add another Y axis scale?

Right now you can add as many y axis as you want. Only 2 will show and if it's yaxis 1 (on the right side) it's the last one in the graph group that will show. The stacked y axis groups isn't working currently.

> I would also like to adjust the resolution for looking at data points in High Chart plots:

By resolution do you mean the y axis numbers being in a finer detail? Like 0.01, 0.02, etc? Or 0.1, 0.2, etc?

If so that's called tick interval. You can set that with the yaxis_tickinterval graphs.conf option

gjr80

unread,

Jun 22, 2019, 9:54:54 AM6/22/19

to weewx-user

On Saturday, 22 June 2019 23:04:07 UTC+10, Pat wrote:

> Where is the pyephem calculation for theoretical max radiation observation being done? I would like to get the plot data to agree.

I'm not 100% familiar with pyephem. Perhaps someone else can answer this? I know it's based on your lat/lon inside weewx.conf to make those calculations

Unless you have done something extra Pat the StdWXCalculate service takes care of calculating maxSolarRad and adding it to packets/records.

Gary

Message has been deleted

Patrick Mendiuk

unread,

Jun 23, 2019, 1:46:45 AM6/23/19

to weewx-user

Looking at StdWXCalculate is what I needed. I see there are few other functions for calculating solar radiation. I might try running them in parallel for comparison.

The resolution I am speaking about with High Charts is the when looking at specific data points with the cursor. I would like to to be able set the float format to %.2f instead of %.1f for the cursor when hovering over the chart.

-Patrick

Message has been deleted

Pat

unread,

Jun 23, 2019, 6:52:45 AM6/23/19

to weewx-user

To change the floating point, look what you have set for group_pressure, then set the floating point for that setting under StringFormats. Restart weewx when done and wait for the archive period to make new charts.

Patrick Mendiuk

unread,

Jun 23, 2019, 1:36:22 PM6/23/19

to weewx-user

There are multiple [[[[String Formats]]]] in weewx.conf and skin.conf. The values in skin.conf don't have any effect on the generated html files that I can see. The values in weewx.conf are used.

-Patrick

Pat

unread,

Jun 23, 2019, 1:39:03 PM6/23/19

to weewx-user

I should have been more clear. weewx.conf will always override skin.conf if there are duplicate settings between the two. Please modify the float point to your preference in weewx.conf - that's the correct spot.

Patrick Mendiuk

unread,

Jun 24, 2019, 2:47:02 PM6/24/19

to weewx-user

I see string formatting in many files throughout weewx.

Reply all

Reply to author

Forward