Passing parameters to VIs

[Greg_Shipley]

Using LV 6.1 with WIN 2000. I am wanting a way to pass several graph parameters to a SubVI without having to cluster properties together. I have several graphs that I need to pass serveral parameters each and would like a compact way to pass all parameters for an XY graph into a SubVI. Are references the way to go here? if so, does anyone have example code on this?

[eriasystemes]

I think references should be good for you. If you pass a reference then all the properties will be available in the subVI.

Watch the VI attached !

Julien

[Greg_McKaskle2]

> Using LV 6.1 with WIN 2000. I am wanting a way to pass several graph
> parameters to a SubVI without having to cluster properties together.
> I have several graphs that I need to pass serveral parameters each and
> would like a compact way to pass all parameters for an XY graph into a
> SubVI. Are references the way to go here? if so, does anyone have
> example code on this?

References are really a way to interact with UI object, not a general
pointer to data. In LV, which is a value-based dataflow language, you
either pass the parameters individually, in an array if they are of the
same type, or in a cluster if they are not.

Greg McKaskle

[shoneill]

If I'm not mistaken, all data operations done on references must be done in the UI thread. Depending on what thread the sub-vi is normally running in, this can have severe performance issues.

Have a look here for more information.

Shane.