EasyChart 2 marks at Mrk mode

[vpessanha]

At my application, we have trends that shows the pressure at an HPU.
I'm using the EasyChart to trend the pressure.
I would like to do a second mark at the trend where I could calculate the deviation and show it automatically.

[lrose]

You should check out Phil's Note Chart Module:

New NoteChart module in the Marketplace

Automation Professionals is pleased to announce the release of NoteChart, its first public marketplace module. From the marketplace description: [quote]The NoteChart module extends Ignition’s built-in Classic Chart and Easy Chart components to mark the plot with a witness line and text at the location of specific time-stamped events.[/quote]Key Features: [ul][li]Translucent Text for annotations and X-Trace labels[/li] [li]Auto X-Trace on Mouse Events or scripted selection[/li] [li]Optional …

It has this functionality built in.

While I believe it to be technically possible with the first party chart components, the task is far from trivial.

[vpessanha]

Thanks, Irose, I'll check Phil's note.

[justinedwards.jle]

You could create any number of marks you want using value, range, and interval markers.
Examples:
• Two X-Trace on Easy Chart
• Overlaying non-associated Alarms on Trends
• Vision Chart - Multiple markers and movable
• Change background color of Vision chart

If you want to display words in the plot of the chart, search the forum for XYTextAnnotations