Shared Variable based on Array of cluster

[MorganRock]

Hello,

I've created a shared variable which is based on an array of cluster (typedef). The cluster only contians two double elements for x-y coordinates of a point.

Everything seems working until I found the shared variable can only hold the first two elements when I pass an array to it.

Are there any settings I've missed?

Thanks

Yan

[RavensFan]

Show us how you are building your data and sending it to the shared variable.

[MorganRock]

Data is simply created and directly sent to SV.

The difference during defining the SV is:

Normally, when define an array SV, it allows to change the "Number of elements" (default as "2").

However, when define a typedef array SV, the option is gone. Does it then use the default number "2" as the number of elements?

[RavensFan]

You defined the Shared Variable as a Single Element FIFO.  That means it can only hold 1 element.

What can be confusing is that you defined your shared variable as an array of clusters, as opposed to the cluster itself.  If this was a multi-element instead of single element FIFO, then you could theoretically wind up with an array of arrays (of clusters).  I don't know if the shared variable engine can handle that.  In general, you can't have an array of arrays in LabVIEW.