XYGraph does not show some points. Why?

[murchak]

I have a very simple code to plot error bars (idea is not mine).

However, points are missing from my plot. Why? The second line is missing.

I have attached pictures of the BD, FP, and the actual code. I had posted this before, but never got an answer. (https://forums.ni.com/t5/LabVIEW/Plot-does-not-show-2nd-point/td-p/2362244)

Sorry for posting again. 

This is driving me insane. The code is just way too simple and I don't see where and how points could be missing.

[altenbach]

The line at x=2 shows just fine in LabVIEW 2013.

[RavensFan · Accepted solution]

I'd say it's a weird bug.  Looks like you are in LV 2011.  I see it in LV 2012 SP1.

If you set the point style to something besides None, the line then shows up.  You can set it to a very small point style that hardly shows up against the line.

[murchak]

That is really interesting. Can someone try this in LabVIEW 2011? I am really curious if anyone else will face this problem with their 2011 version.

I spoke with NI today to possibly upgrade my 2011 DS to the latest version which would cost $2600.

I wonder if I can call them again for a free upgrade since my LabVIEW 2011 must have issues. (Of course that won't happen).

[GerdW]

Hi murchak,

I tested your VI on LV2011SP1 and see the same display bug as you do.

But I also found a workaround:

- Changing the line width alone doesn't help.

- Changing the point style does help showing the line!

So you need to change the plot style to show points too, even the smallest point is sufficient (and doesn't get recognized by the user)!.

See exported simplified image:

(I used bigger points for demonstration…)

[murchak]

Thanks GerdW.

RavensFan already suggested this. It works now.