Exporting VI content (objects and connections)

[lorant]

Hello everyone,

I would like to obtain a list of the objects AND connections of the block diagram of a VI. In other words, I would like to find out from a VI what objects, subVIs etc. contains an other VI...  Is this possible somehow?

(e.g. if we have two boolean controls, named Bool1 and Bool2, a boolean indicator, named Bool3, and these three are connected by the means of an AND gate - Bool3=Bool1*Bool2,

then I would like to obtain the content of my VI, which is either the formula Bool3=Bool1*Bool2,  or something like a date packet

Controls: Bool1, Bool2;

Indicators: Bool3;

Objects: AND gate;

Connections: Bool1-1st input of AND gate, Bool2-2nd input of AND gate, Bool3-output of AND gate).

The Export Strings function from the Tools menu exports only a tagged list about the objects, without mentioning anything about the connections.

Hope you understand my question!

Thanks a lot for your help!

Lorant

[TiTou]

Hi Lorant,

I am not sure of that point but I don't think you can get a list of the variables declared in a VI.
About the second point I doubt even more.. I would be very very surprised if a function can tell you how the variables are linked inside of a VI...

Sorry...

[smercurio_fc]

It almost sounds like you're trying to perform the old "text-style" documentation of a LabVIEW program. Also known as "can I generate C-code equivalent of my LabVIEW code?". Is this for documentation purposes?

[lorant]

Hy,

no, it's actually not for documentation purposes, but does it matter...? I've found a good way of evaluating such a content of a diagram, but in Simulink. The Simulink saves the model in an .mdl file, where such a list about the object and connections exist, so it seems reasonable to create the model in Simulink, and the evaluation of it in LabVIEW....

[TiTou]

There is just one point I'm just thinking about that... for instance when you have a multiplication, if you right click on the output part and choose "create indicator", an indicator is create with a default name "X*Y"... that sort of mean that LabVIEW can, in some cases, tell you where the outputs come from, no ?

[shoneill]

I think there MIGHT be a chance that this is possible using LV scripting.

Try searching the LAVA user goup forums for scripting.  If I remember correctly, I think they were able to access "Wire" objects (with names etc.)

Hope this helps

Shane.

[Jarrod_S.]

You can also view the VI hierarchy. This will show a tree of all of its subVIs and custom controls (anything saved as .ctl). It doesn't give any information about the logic involved in the VI.

Select the menu item Browse >> VI Hierarchy (LabVIEW 7.1 and before) or View >> VI Hierarchy (LabVIEW 8.0) to see this information.