How can I programatically "reset scale layout"?

[Daniel_Chile]

When ploting waveform and XY graphs, sometimes the X scale goes weird and Xmin goes beyond the visible plot area. This problem is corrected by making right click-advanced-reset scale layout. Is there any way to do this programatically? Thanks

Daniel

[Ankita A.]

Hi Daniel,

If the Xmin sometimes is out of the range of what you are expecting and do not want the graph to do that, you should turn off the autoscaling function (Right Click->X Scale->Autoscale). You can do the same thing programmatically using XScale.Scale Fit property in property node. Wire a zero constant to the Scale Fit property to turn off autoscaling. You can also set the minimum value of X scale by using the X Scale.Range.Minimum property.

Regards,
Ankita A.

[Daniel_Chile]

Hi. Thanks for your answer.

My problem is not about autoscaling. It's about a graph scale display problem that happens sometimes when I zoom in and the Y scale values have a lot of digits.

My question points to "reset scale layout" programatically. Is it possible to do that?

I understand that it may be difficult to understand the problem I try to describe, so when it happens again I'll get a screenshot and post it.

Thanks,

Daniel

[Ankita A.]

Hi Daniel,

It is not possible to "reset scale layout" programmatically. You can however set the Marker Values programmatically using property nodes.

Regards,
Ankita A.

[Daniel_Chile]

Hi, Ankita. Attached there is an image of the problem I have. Please note that the minimum value of the X axis is mislocated.
I've had the same problem ocassionally on different programs I made. I'm now using LV7.1 but I remember I got the same problem on LV6.

Which would be the best method to correct this programatically?

Thank you.

Daniel

[Ankita A.]

Hi Daniel,

Please try out the attached example. Try to plot your data in the graph in this example and see if you are able to correct the xscale programmatically using this VI.

Please let me know if you have any questions/comments regarding this issue.

Regards,
Ankita A.

[Daniel_Chile]

Hi.
I implemented your method in my program, but I'm afraid it didn't work out.

I really don't have no idea about how to correct this problem.

Regards,

Daniel

[Ankita A.]

Hi Daniel,

I cannot think of any other way to reset the scale programmatically. I think your best bet would be to do it using the front panel.

Reagrds,
Ankita A.

[chilly_charly]

This strange behaviour may be related to a bug in the graph scale management known to affect the Y scale. Have a look at previous discussions here [link removed; thread no longer available]
I'm sorry that you will have to wait for a fix by NI. In the mean time, try to find a work-around playing with the property node...

CC