LabVIEW

cancel
Showing results for 
Search instead for 
Did you mean: 

Graph not initialized: is it possible?

Is it possible to have a graph without initialization? I mean I would like that it could keep the plots from the previous run of the vi, so that at the following run the new plots could be superimposed on top of the old ones without the old being cleared.
0 Kudos
Message 1 of 3
(2,496 Views)

You are not very specific here, but you are probably looking for a chart. This assumes that the data is spaced equally in time.

 

Another possibility would be the xy graph frmo the express palette. You can configure it to retain data between calls.

 

In the most general case you can build up your data in a shift register.

0 Kudos
Message 2 of 3
(2,490 Views)

Hi

 

If you are planning to save the chart/graph data from previous execution of the vi, as in, close the vi and run again, you can try saving the data in a compatible format to a file and read from the file before you begin the data display during the next run of the VI.

 

On a general note, we can give you simple to complex possibilties of solving your problem, without actually knowing which one would be more helpful, or which option needs more details.

 

Most of us would suggest authors to be more clearer on their requirement. Else, we would be guessing around what you may be actually requiring.

A VI to show what you need, or to show what is already done may be of help.

 

 Edited:

 

You said 'initialized'. Are you initializing the graph at every iteration? How are you building data onto the graph?

Regards
Freelance_LV
TestAutomation Consultant
0 Kudos
Message 3 of 3
(2,467 Views)