waveform chart gaps

[ThijsBoeree]

When i'm thinking on it... I control a laser with those square waves. I make a waveform with a graph and do an interpolation to make a generation file with a sample frequency of 1024 Hz. So sometimes there is 0 time between a jump from 2 volts to -1 volt for example. But then again the chart should interpolate also. But maybe not...? Thanks for all the thinking! Happy easter everyone.

[billko]

Have you tried zooming in on the broken parts of the graph to see if it is really a discontinuity?  Does the graphed data reflect the discontinuity?

[ThijsBoeree]

It's a chart, not a graph...

[billko]

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@ThijsBoeree wrote:
It's a chart, not a graph...

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Okay, I stand corrected.  But can you do those things?

[ThijsBoeree]

Well the strange thing is, when i stop the program the gaps are filled with a straight line... I have to try the zooming at work.

[billko]

Sounds more like a rendering issue than a data issue.  Maybe something simple like resizing the chart in the horizontal direction will help?

[ThiCop]

Hello Thijs,

Is it possible to create some test code that should allow me to reproduce this behavior locally?

[ThijsBoeree]

I am trying to give some test code, but my program is rather big, 319 VI's in total now... So thats alot of work. The acquisition is in a seperate loop, with a message handler queue mechanism like the example given in LabVIEW. But i already made this some time ago with another application and then there weren't gaps...?

Best regards,

Thijs

[ThiCop]

Hello Thijs,

I fully understand that you are not able to share the full code.

However, are you able this behavior with a limited subset of your code?

If I can reproduce it, then I can focus better on finding a way to resolve it.

[ThijsBoeree]

Here is the whole program; https://www.dropbox.com/sh/chlhwh0ox6tmmsc/Vro5S_z9P6

1. change the acquisition and generation hardware in the ini file.

2. make 2 folders on your c drive:

C:/eyemovements/subjects

C:/eyemovementsbackup/subjects

3. i also use the open G library...

Run the 'Main' vi from the project, create a subject, make a new measurement and then you see what i mean...

Good luck!

Regards,

Thijs

PS. this is still very beta...