labview crashes with intensity chart

[WCR]

Twice this morning, LV2010 has hung ("program is not repsonding") when I have tried to reposition an intesity chart on my front panel.  In one case I copied the chart from a NI example program into my VI.  When I tried to reposition the chart on my front panael, LV stopped responding.  Same thing happened when I tried again; the second time, I got the intensity chart from the charts and graphs palette.  I have LV 2010, version 10.0f2, and windows XP.  Thanks.

[X.]

Post your VI and provide steps to reproduce.

[Wee-Bey · Accepted solution]

Hi there!

The following KnowledgeBase explains why this might be happening.

http://digital.ni.com/public.nsf/allkb/9A8FB888BFCED9658625721500434A31

Basically, that chart might be holding a lot of data, and when you move it, LabVIEW has to rearrange all that information in RAM as you move the chart. You can either write smaller data, or save all that data in an array separate from the chart at the end of execution so you can save it. If you want to view it in a chart later, just input it back into a chart.

[WCR]

Thank you.  I experienced a similar error under similar circumstances, on a different computer.  In that case, I got an error message. 

An NI engineer says:

"I did a bit of research on this issue and the problem you are experiencing is related to LabVIEW itself and not your code. The error is related to the drawmgr.cpp script that is used to draw objects on the block diagram. There has been a bug report filed for LabVIEW 2010 under Corrective Action Request #254388. The good news is that this bug was fixed in LabVIEW SP1. You can download this service pack."

[Wee-Bey]

Excellent. Did updating to SP1 fix this similar issue and the original one you detailed? Redrawing elements on the front panel can be quite CPU-intensive, so if you're ever setting up a system that automatically does a lot of redraws on the front panel and you're getting a whole lot of CPU usage you want to avoid, then if there isn't some kind of service pack update to it, then one go-to move is to try and reduce how often you do a redraw. Hopefully your issue got resolved. 🙂