How to acquire a series of position data in a while loop which generate a position once a time in labview?

[100148X]

My program is whole in a while loop. Once it runs, it will use kinect to keep acquire my head position data, so it will generate a position once a time. I want to attain 5 positions, and use it to calculate 3 velocity and 2 acceleration. How do I get 5 once while it generate 1 once time?

[LV_Pro · Accepted solution]

If your received data is brought to the edge of the while loop, and you right click where that wire exits the while loop, you can select "Enable Indexing" which will produce an array of the received data as big as the number of times through the loop. Alternatively, check the "Help:FInd Examples" for "Producer/Consumer", which will allow your receiving loop (producer) to get data and send it to a processing loop (consumer).

[100148X]

Thanks. I m using the producer consumer pattern. But what I get in consumer loop is still a real-time position value. So how to get 5 positions in consumer loop?

[100148X]

And I have already tried 'flush queue' & 'get queue statues', and this 2 all give me empty array.

[mikeporter]

You don't understand the concept here. In the producer loop you will transfer the current reading from the kinect to the consumer loop. All your data processing and analysis takes place in the consumer loop.

Mike...

[LV_Pro]

Can you post the code you have created so that we can see where you are heading?

[100148X]

I have used the first way to solve the problem. Thanks!