I'm trying to figure out how to plot a mostly constant reading that is changing very rarely, for example a desired temperature set on a dial. To avoid creating event on every update, I have the event-on-change-reading attribute set. But when the last update is out of plot zoom scope, the reading is missing. What I would like to achieve is either:
- make the plot look back for the latest value before its start to know where to begin
- force creating reading update events for example every hour
- anything else that you might suggest
Thanks for any help!