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Chart difference?

Discussion specific to Davis weather stations
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tomcatuk
Posts: 331
Joined: Fri 26 Dec 2008 4:41 pm
Weather Station: ----> Davis Vantage Vue
Operating System: Windows 10 20H2 19042.685
Location: Buckingham

Chart difference?

Post by tomcatuk »

Hi Steve just wonder why the chart looks different after a restart?

Ie this is the chart before I restarted Cumulus the windchill looks like this...
chartweb.jpg
Then after a restart I get this...
chartweb2.jpg
I have the windchill option ticked by the way in Cumulus

Not mentioned it before but some times when I try to view the graphs locally I view them fine ie the window open, but then after closing it down I go to look again and the window simply won't open... I know it won't do it while it is uploading as I just discovered...
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Regards Steve
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steve
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Re: Chart difference?

Post by steve »

tomcatuk wrote:Hi Steve just wonder why the chart looks different after a restart?
I should do a FAQ for this. That's twice this has been asked, just today - but I know you won't be reading the Fine Offset section now you're one of the elite ;)

The graphs are plotted at 1-minute intervals while Cumulus is running. When you start Cumulus up, it downloads the data from the logger and adds it to the log files. It then plots the graphs using the last 24 hours worth of data from the log files; so the plot interval you see at start up comes from a combination of the station logger interval and the Cumulus logging interval (but I recommend having them set to the same value anyway).
Not mentioned it before but some times when I try to view the graphs locally I view them fine ie the window open, but then after closing it down I go to look again and the window simply won't open... I know it won't do it while it is uploading as I just discovered...
I can't explain that, I'm afraid, as it all works fine for me, and I can't think of a reason why it wouldn't. The upload is done in a separate thread specifically so it doesn't interfere with the UI. It could be something to do with the way the data is read from the Vue, but again, that's in a separate thread. That thread does have to communicate with the UI thread, though, to update the display, but it shouldn't stop the graphs window opening.
Steve
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steve
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Re: Chart difference?

Post by steve »

steve wrote:The upload is done in a separate thread specifically so it doesn't interfere with the UI.
It's occurred to me that maybe it's not the ftp uploads that cause the problem. I don't think the WU/CWOP etc uploads are done in a separate thread, so it's possibke these do interfere with the UI.
Steve
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tomcatuk
Posts: 331
Joined: Fri 26 Dec 2008 4:41 pm
Weather Station: ----> Davis Vantage Vue
Operating System: Windows 10 20H2 19042.685
Location: Buckingham

Re: Chart difference?

Post by tomcatuk »

Hi Steve on this chilly day... thanks for the update......

See you've flatlined out today... ;)
flatline.jpg
but I know you won't be reading the Fine Offset section now you're one of the elite ;)
I'm not saying a word... :lol: :lol:
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Regards Steve
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steve
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Re: Chart difference?

Post by steve »

tomcatuk wrote:See you've flatlined out today... ;)
Station losing contact with the sensors again :(
Steve
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tomcatuk
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Joined: Fri 26 Dec 2008 4:41 pm
Weather Station: ----> Davis Vantage Vue
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Location: Buckingham

Re: Chart difference?

Post by tomcatuk »

Not the Davis?
Regards Steve
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steve
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Re: Chart difference?

Post by steve »

tomcatuk wrote:Not the Davis?
Yes, it's been doing it quite a bit recently.
Steve
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