<![CDATA[Graph - Stop graphing when some value]]>Hi,
is possibile to stop graphing when some value is returned?
In my case Ubiquiti device return -1000 of signal strenght when remote device is not connected via radio.

I need to stop graphing instead of get -1000

value.png

exampleStopGraph.jpg

]]>https://forum.netxms.org/topic/6832/graph-stop-graphing-when-some-valueRSS for NodeFri, 13 Nov 2026 06:15:59 GMTSun, 27 Dec 2020 09:12:36 GMT60<![CDATA[Reply to Graph - Stop graphing when some value on Mon, 28 Dec 2020 12:34:54 GMT]]>Hi,

there is open change request for that: https://track.radensolutions.com/issue/NX-1826. Hopefully will fix it soon.

Best regards,
Victor

]]>https://forum.netxms.org/post/29142https://forum.netxms.org/post/29142Mon, 28 Dec 2020 12:34:54 GMT<![CDATA[Reply to Graph - Stop graphing when some value on Mon, 28 Dec 2020 10:37:23 GMT]]>However, there is an anomaly  😞
If the chart is zoomed out, it tends to close the line between the previous and last retrieved value.
See in my example 1H Graph and 4H same graph

Graph-1h.jpg

Graph-4h.jpg

]]>https://forum.netxms.org/post/29137https://forum.netxms.org/post/29137Mon, 28 Dec 2020 10:37:23 GMT<![CDATA[Reply to Graph - Stop graphing when some value on Mon, 28 Dec 2020 10:20:38 GMT]]>Thanks Filipp!

It Works ! !

]]>https://forum.netxms.org/post/29136https://forum.netxms.org/post/29136Mon, 28 Dec 2020 10:20:38 GMT<![CDATA[Reply to Graph - Stop graphing when some value on Sun, 27 Dec 2020 21:41:44 GMT]]>Try abort instead of return null:

if ($1 < -100) {
  abort;
} else {
  return $1;
}
]]>https://forum.netxms.org/post/29132https://forum.netxms.org/post/29132Sun, 27 Dec 2020 21:41:44 GMT<![CDATA[Reply to Graph - Stop graphing when some value on Sun, 27 Dec 2020 18:34:00 GMT]]>I've tried, but in last value I get "0" instead of <<ERROR>>
This is the Transformation
return ($1 < -100) ? null : $1;

Why?

Graph.jpg

LastValue.jpg

Transformation.jpg

]]>https://forum.netxms.org/post/29131https://forum.netxms.org/post/29131Sun, 27 Dec 2020 18:34:00 GMT<![CDATA[Reply to Graph - Stop graphing when some value on Sun, 27 Dec 2020 17:48:49 GMT]]>Null means data collection error - no value will be stored in the DB, no value will be shown on the chart.
The DCI will show "<<ERROR>>" in Last Values.

If you want 0, simply return 0 in the transform script.

]]>https://forum.netxms.org/post/29129https://forum.netxms.org/post/29129Sun, 27 Dec 2020 17:48:49 GMT<![CDATA[Reply to Graph - Stop graphing when some value on Sun, 27 Dec 2020 16:47:51 GMT]]>When null is returned on the chart it goes a position itself as value 0

Version 3.6.303

Other methods?

]]>https://forum.netxms.org/post/29128https://forum.netxms.org/post/29128Sun, 27 Dec 2020 16:47:51 GMT<![CDATA[Reply to Graph - Stop graphing when some value on Sun, 27 Dec 2020 15:16:33 GMT]]>Use a transform script to return "null" when wrong value is received:

if ($1 < -100) {
  return null;
} else {
  return $1;
}
]]>https://forum.netxms.org/post/29127https://forum.netxms.org/post/29127Sun, 27 Dec 2020 15:16:33 GMT