Select pens to trend

Ignition
,
1

I am interested in using check boxes to select which values on the screen I want to trend and then click a button to open a trend with those values.

image

How can I make this work?

2

That looks like you are working in Vision. Can you add the Vision (or Perspective) tag to your question to make it clear?

3

Sorry, it is perspective.

image

4

Thanks.
Which chart component type do you wish to use?

5

Preferably the power chart.

6

Try this:

  • Run the chart in Designer and add the tags/pens that you want.
  • If you now examine the props | pens | 0, etc., you’ll see there is a visible property for each.
  • You now need to create a dictionary to pass to the chart. You can use an Expression Structure and bind to to whatever you like on that view. A custom property on the root might suffice.

Expression structure

  • On the chart view create a view parameter of type object to take the dictionary.
  • On the chart open props | pens | 0 | visible and add a binding to the view parameter.

Pen visibility bindng

That should be enough to get you going.

8

I'm new to ignition, so I want to copy the solution you told me, but it doesn't work.

Can you send me a sample file or let me know in detail?

9

Please explain

  • what you did,
  • what you expected,
  • and what you got.