Annotation label on graph (append)

[Joven]

Dear Sir,

Can anyone teach me how can i maintain the history of the previous annotations that i defined on a graph earlier? Right now, it seems that once i create another new annotation list, all the previous annotations that i define earlier will be cleared.

Attach is an example to create one annotation list. How do i maintain the previous annotations if i create another new annotation list again?

[RavensFan]

You would store your array of annotations in a shift register, then build any new annotations onto that array and write them back to the property node.

Though your VI is missing a loop to keep it running.  Is this a subVI of another VI?

[Joven]

Dear Ravens,

If one of my annotation list output is already 1 D array and the other annotation list is also 1D array, how do i actually combine them to a new annotation list? Both annotation arrays have different dimensions and i cant combine them together resulting in an error.

Is there any way to work around this?

[RavensFan · Accepted solution]

Build Array.

Right click on the function and select Concatenate Inputs.  It will take two 1-D arrays and append them to each other giving you one longer 1-D array.  Its normal mode when you first drop it would be for that not to be selected, in which case, it would take the two 1-D arrays and make them into one 2-D array.