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We appreciate your patience as we improve our online experience.
04-14-2011 04:05 AM
Hi.
We're having a problem determing the X-scale on a chart. The chart shows a sine-wave in real time scale, with about 1 second or so on the graph. How can we change this to 10 or 30 seconds? Which property node should we use for this, when the chart uses real time scale?
Thanks for your help!
04-14-2011 04:22 AM
04-14-2011 05:13 AM
The chart uses X-axis with the exact date and time from the computer - T0.
If we change the chart history length and then "autoscale X-axis", nothing changes.
Do you know any property nodes that will can change the lenght of the X-axis, when it shows the exact time?
04-14-2011 05:21 AM
Added two pictures that shows the problem.
04-14-2011 05:46 AM
Hi,
you don't need to set T0 constantly. The x axis range is settable: simply switch off autoscaling and set the needed range (either manually or by property nodes). Then this range will not change with new data arriving!
Next time please attach a (simplified) VI instead of undebuggable pictures...
04-14-2011 06:03 AM
The VI is quite large, with lots of subVI's, so adding it here, might be problematic. But it's added now. All the charts should use absolute time, and be scaled in for example 10 or 30 seconds.
We have tried using property nodes, with "X scale - max/min" and "scale fit", but the problem is that the X-axis is in absolute time.
Eventhough we remove "autoscale X-axis", it's not possible to type the time manually - it just switches back.
Thanks a lot for your help.
04-14-2011 06:09 AM
An older version so you'll be able to open it
06-03-2013 10:53 AM
Hi,
I have the same problem with changing the x aix period. It only shows 1 second on the chart and backwards. Did you figure out how to change to longer period?
Thanks,
Jingjing
06-03-2013 11:04 AM
Yes we solved it back in 2011, but I don't remember how. Probably using property nodes.
06-03-2013 11:24 AM
thanks for the quick reply!
I am new to labview and we are using limited edition because we haven't decided to buy windows or labview. I am wondering if the property nodes are in the full edition? (I didn't find the property nodes for x axis)