Does anyone know about a good ring buffer acquisition example for IMAQdx?

[JorgenU]

I have found a good example called preposttrigger that works fine for IMAQ for capturing images around a certain event.

My question is if there exist a similiar example for IMAQdx?

[veritas]

i haven't found one either, and I cannot seem to convert the IMAQ version of LL ring.vi to work with IMAQdx 

[BlueCheese]

Jorgen,

What would you like the example to show? Using pre/post-triggers in IMAQdx is (mostly) dependent on the trigger functionality provided by the camera unless you use an IMAQ I/O board like an 8254R/8255R or a CVS. Many cameras do have some fairly powerful trigger functionality though that can be accessed via registers on FireWire and via attributes for GigE Vision cameras.

If you're looking explicitly for a ring example, there isn't one for IMAQdx because the buffer ring is used internally and not directly exposed. This is because they contain raw images that must be decoded first into a form to be used by Vision functions. When you use the Grab functions you are extracting, decoding, then releasing an image from the ring.

If you have some specifics on examples you'd like to see that we don't have covered, please let us know and someone may be able to provide one. The feedback would also go towards future examples included with the software.

Thanks,
Eric