How to control samples of a 3D graph?

[BjarneDK]

Hi,

Im working with a data acquistion program, were I have three forces, wich I want to be shown as a 3D graph. Now, when I implement the 3D graph, it uses a lot of CPU power, so I would like to sample the graph slower, for example about 50 times pr second, would be enough (and would probably save some CPU power?).

I have made a test VI to try to get it working, but I cant get the loops running. The three waveform generators are to simulate the tree forces, that I will get from the DAQ assistant.

Any ideas to solve it, mabye make it on a different way? 

[BjarneDK]

I forgot to mention, that as it is by now, it would probably give some timing issues in a bigger system?

[Ben]

Anything over 30 Hz is near imposible for a human to notice.

Ben

[BjarneDK]

Yea I also think that 30Hz vould be enough, thats why I have to find a way to "tune" it down 🙂

[Ben]

Sorry but I have not learned the 3d picture version so I can not help.

Ben

[BjarneDK]

Help anyone? 🙂

[Morini]

Hi Bjarne,

I have tried your attached VI in Labview 2009 an it seems to run fine with a 3D graph udate rate at 1Hz. Can you confirm this?

Depends on your application you might want to consider multiple loops structures in Labview, where DAQ and Data presentation/Logging has their own loop for optimizing the performance.

Please let me know if this helps.

Thanks!

Message Edited by Morini on 02-22-2010 09:41 AM

[BjarneDK]

Hi, 

Thanks for your reply. Yea mabye it would be a good idea to split it op in loops. I have tried to do it in this vi, is it the right way to do it ? you should imagine the loop with the waveform generators as a bigger system 🙂