<![CDATA[dygraphOptions dateWindows]]>Re: dygraphOptions in REXYGEN HMI Designer

Hello,
I'm looking into the possibility to zoom in by default, so when you open the page with the trend, on a part of a trend plot in REXYGEN HMI software.
0_1562790948065_range_selector.PNG

In the above mentioned topic on the old forum, that is referring to the options in dygraph, I found some interesting link that referred to a "date Windows".

dateWindow #
Initially zoom in on a section of the graph. Is of the form [earliest, latest], where earliest/latest are milliseconds since epoch. If the data for the x-axis is numeric, the values in dateWindow must also be numbers.

Type: Array of two numbers
Default: Full range of the input is shown

Unfortunately I do not succeed to figure out the required code in the "options" to select for instance only the last 8 hours of a trendchart that is using for instance 3 full days.

I'm sampling every 2 minutes (pfac = 2400) and have a trendplot of 3 days (l = 2160).
0_1562790514478_trend settings.PNG

Unfortunately I don't find what exact code should be used to achieve the behavior as referred to in the example online.
Any help would be greatly appreciated.

Thanks,
Peter

]]>https://forum.rexygen.com/topic/44/dygraphoptions-datewindowsRSS for NodeWed, 20 May 2026 12:38:45 GMTWed, 10 Jul 2019 20:43:41 GMT60<![CDATA[Reply to dygraphOptions dateWindows on Fri, 12 Jul 2019 19:35:10 GMT]]>Thank a lot for explanation Ondrej.
I will proceed accordingly.

Best regards,
Peter

]]>https://forum.rexygen.com/post/128https://forum.rexygen.com/post/128Fri, 12 Jul 2019 19:35:10 GMT<![CDATA[Reply to dygraphOptions dateWindows on Fri, 12 Jul 2019 14:19:57 GMT]]>Hello Peter,
we are using dateWindow function during trend refresh. Thus every time we get a new data the time widow is adjusted. So you are not able to use this attribute for custom default zoom. I suggest to follow the @cechurat recommendation and create a 3 hour trend.

Best regards,
Ondrej

]]>https://forum.rexygen.com/post/127https://forum.rexygen.com/post/127Fri, 12 Jul 2019 14:19:57 GMT<![CDATA[Reply to dygraphOptions dateWindows on Fri, 12 Jul 2019 12:44:53 GMT]]>Thanks Tomas,

Not exactly what I want.
But what about this "Link-Interaction" Dygraph type?
0_1562935381516_Link_Interaction_Dygraphs.PNG
Here a possibility to zoom to an hour, day or week etc. and move this time span to the left or to the right with the Pan parameters listed....

Can such a graph be implemented in Rexygen?

Peter

]]>https://forum.rexygen.com/post/126https://forum.rexygen.com/post/126Fri, 12 Jul 2019 12:44:53 GMT<![CDATA[Reply to dygraphOptions dateWindows on Fri, 12 Jul 2019 12:25:35 GMT]]>Hi Peter,

thanks for interesting feature request.

It is possible to set dygraph options in REXYGEN HMI Designer - which means that it is static. According to the dygraph docs the dateWindow should be dynamically changed according to the desired time window (which is constantly moving): "earliest/latest are milliseconds since epoch".
The only workaround in my mind for now is to use two trend plots - one 8h and one 3 days long.

Cheers,
Tomas

]]>https://forum.rexygen.com/post/125https://forum.rexygen.com/post/125Fri, 12 Jul 2019 12:25:35 GMT