"yesterday.outTemp" compared to "current.outTemp", et seq, for Yesterday page

[Messy Potamia]

The high/low table is working, showing but I'd like to get the upper table in yesterday.html.tmpl  to show the data from 86400 seconds ago, or one day ago, $day($days_ago=1), or $yesterday.  This doesn't seem to be working.

In otherwords, on my Yesterday page, (weewx 3.9.2 Standard skins) I'd like it to show the same data as if you looked at it exactly 24 hrs ago.

When I replace the $current.outTemp with $yesterday.outTemp,  it generates an error.

Any ideas?   Thanks--

[Thomas Keffer]

The two tags serve different purposes. The tag $yesterday represents an aggregation over the day. The tag $current represents a single record. There is an undocumented feature in v3.9.2 (documented in V4.0) that gets you what you want:

<p>The temperature 24 hours ago was $current(timestamp=$current.dateTime.raw-86400).outTemp</p>

-tk

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[Messy Potamia]

Correction: it doesn't generate an error, but it doesn't return any data. The tabular data fields are blank for the ones which have $yesterday.[parameter].

What do you think I'm doing wrong?

[Messy Potamia]

Thanks, trying that now...

On Friday, April 17, 2020 at 4:18:33 PM UTC+2, Thomas Keffer wrote:

The two tags serve different purposes. The tag $yesterday represents an aggregation over the day. The tag $current represents a single record. There is an undocumented feature in v3.9.2 (documented in V4.0) that gets you what you want:

<p>The temperature 24 hours ago was $current(timestamp=$current.dateTime.raw-86400).outTemp</p>

-tk

On Fri, Apr 17, 2020 at 7:01 AM Messy Potamia <messyp...@gmail.com> wrote:

The high/low table is working, showing but I'd like to get the upper table in yesterday.html.tmpl  to show the data from 86400 seconds ago, or one day ago, $day($days_ago=1), or $yesterday.  This doesn't seem to be working.

In otherwords, on my Yesterday page, (weewx 3.9.2 Standard skins) I'd like it to show the same data as if you looked at it exactly 24 hrs ago.

When I replace the $current.outTemp with $yesterday.outTemp,  it generates an error.

Any ideas?   Thanks--

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[Messy Potamia]

Thanks, the tables are great.

- - -

Reading through the .tmpls & skin.conf, and http://www.weewx.com/docs/customizing.htm, I cannot glean how to tell the plot generator to generate a plot that is from the same time period 24 hours ago. Is there a way to get those?

Thanks,

Phil

[Thomas Keffer]

Unfortunately, no. The ImageGenerator can only make plots that end with the current time.

-tk

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[Messy Potamia]

Then is it possible to generate plots that cover the current 48 hours? They would end with the current time but would span 2 days.

Thanks

Phil

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[Andrew Milner]

set time_length to the required value (86400*2 for 48 hours) for the required plot(s)

http://weewx.com/docs/customizing.htm#Time_periods

[Messy Potamia]

Thanks will try that now.

[Messy Potamia]

in skin.conf:
    [[yesterday_images]]
#       x_label_format = %H:%M
#        bottom_label_format = %x %H:%M
#        time_length = 97200    # == 27 hours
#        axis_label_font_size = 8

        x_label_format = %d
        bottom_label_format = %m/%d/%y %H:%M
        time_length = 172800    # == 2 days
        #aggregate_type = avg
        aggregate_interval = 10800    # == 3 hours
        show_daynight = true
       
        [[[yesterdaybarometer]]]
        time_length = 172800    # == 2 days
            [[[[barometer]]]]
       
        [[[yesterdaytempdew]]]
        time_length = 172800    # == 2 days
            [[[[outTemp]]]]
            [[[[dewpoint]]]]
       
        [[[yesterdayrain]]]
            # Make sure the y-axis increment is at least 0.02 for the rain plot
        time_length = 172800    # == 2 days
            yscale = None, None, 0.02
            plot_type = bar
            [[[[rain]]]]
                aggregate_type = sum
                aggregate_interval = 3600
                label = Rain (hourly total)
     
        [[[yesterdaypond]]]
        time_length = 172800    # == 2 days
            yscale = None, None, 0.5
            [[[[extraTemp1]]]]

        [[[yesterdayDnldSpd]]]
        time_length = 172800    # == 2 days
            yscale = 5, 50, 5
            [[[[leafTemp1]]]]
            label = Vega-Net MB/sec
   
        [[[yesterdaywind]]]
        time_length = 172800    # == 2 days
            [[[[windSpeed]]]]
            [[[[windGust]]]]
       
        [[[yesterdayinside]]]
        time_length = 172800    # == 2 days
            [[[[inTemp]]]]
            label = Fish Pond Temp
       
        [[[yesterdaywinddir]]]
        time_length = 172800    # == 2 days
            # Hardwire in the y-axis scale for wind direction
            yscale = 0.0, 360.0, 45.0
            [[[[windDir]]]]

and yesterday.html.tmpl:

<!-- 48-hr plots -->
        <div class="header">
        <h3>(48-hr Plots)</h3>
        </div>
        <div id="plots">
          <img src="yesterdaytempdew.png" alt="temperatures" />
          <img src="yesterdayrain.png" alt="rain" />
          <img src="yesterdaywind.png" alt="wind" />
          <img src="yesterdaybarometer.png" alt="barometer"/>
          <img src="yesterdaywinddir.png" alt="Hi Wind" />
          <img src="yesterdayinside.png" alt="Inside" />
          <img src="yesterdayDnldSpd.png" alt="Download" />
          #if $week.extraTemp1.has_data
          <img src="weekpond.png" alt="Pond Temperatures" />
          #end if
        </div>
<!-- end 48-hr plots -->

But it seems to still be generating only 24-hr length plots:

I'm probably doing something wrong but after reading the cited docs I don't see what, maybe you do?

Thx/Phil

On Saturday, April 18, 2020 at 9:44:43 AM UTC+2, Andrew Milner wrote:

[Thomas Keffer]

Worked for me. Because you are using a 3 hour aggregation period, the pictures will not be regenerated for 3 hours. Delete all your "yesterday" plots to have them regenerated at the next reporting cycle.

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[Messy Potamia]

Yes so it did (checking 5 hrs later). Thank you. I'll tinker now with
tweeking the details.
Thanks -- Phil

On Sat, Apr 18, 2020 at 5:28 PM Thomas Keffer <tke...@gmail.com> wrote:
>
> Worked for me. Because you are using a 3 hour aggregation period, the pictures will not be regenerated for 3 hours. Delete all your "yesterday" plots to have them regenerated at the next reporting cycle.
>
>
>

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