xy graph

[Isabella]

Hi All,

How to change the properties for x-axis? Bec for the timing of my xy graph, the number is so great.

Thanks & Regards,

Isa

[MikeS81]

Hi Isa,

how do you write the data to your XYGraph? You can can connect two arrays of data to the xygraph. One for the x-axis and one for y.

Mike

[Isabella]

Hi Mike,

One is in time while the other is in DBL.

Thanks & Regards,

Isa

[Norbert_B · Accepted solution]

Isa,

since you already asked several questions about timestamping, i just asume that your x-axis represents time.... is that assumption correct?

If so, you would not use xy graph except if your time (delta t) is not linear for the measurement values. So with a constant delta t, you would use a "normal" graph and use the timing information (T0 and delta t) for scaling of the x-axis. Using waveforms as datatype, that is done automatically. You propably have to configure the x-axis as shown in the screenshot:

 

Please note that this setting can be configured for xy graphs as well!

hope this helps,

Norbert 

Message Edited by Norbert B on 01-16-2009 02:29 AM

[Isabella]

Thanks alot.

Cheers (:

[Isabella]

Hi,

Sry for the trouble. i have one more question. Is that how to adjust my timing to 5mins interval? instead 15mins interval which is kind of long.

Thanks & Regards,

Isa

[Isabella]

Sry. i forgot to attach in the previous post.

[Norbert_B]

Isa,

the scaling of the time axis depends on your settings/values. See attached VI.  Please note that using the property nodes to define min and max of the time scale will, in general, create better impressions of the graph.

Using autoscaling could leave spaces what might be misleading for the user. Still, using the property nodes possibly can cut out some values of the graph due to rounding issues.

In the example, the interval is defined by delta t. That is the frequency you use to acquire the signal. So if your application is acquiring a signal one sample per 5 minutes, the interval would be 5 minutes...

If you refer by "interval" to the so called "ticks" of the graph, you have to modify their appearance (minor, mayor ticks).

hope this helps,

Norbert

[Isabella]

Sry. but my labview version is 8.5. I cant open that vi. Is it possible to save it to 8.5version?

Thanks & Regards,

Isa

[MikeS81]

Hi Isa,

for 8.5 now.

Mike