Multiplot on Waveform chart with separate scae range for each channel

[Kousy]

Hi All,

In my application I just like to plot all the incoming analog channels(about 10-12) values onto Waveform chart, just to see the trend. Each channels data have different scale ranges.

I done that as follows :
On Y Axis, I duplicated the original Amplitude (y axis scale name) to 'N' no. as per my requirement. Also I am able to change dynamically the minimum, maxmimum, increment value for each channel on y axis. At any point of time, Y axis have atmost any combination of 3-4 channels only. Depends on the selection of channel no., I made visible the relevant scale range, name etc.. sometimes these scales get overlapped. sometimes happens correctly.

Now I resolved scale overlapping problem by using the Active scale's Left & top property. But the active Plot area gone. I am not able to regain the actual plotting area by using any of the property like active plot's left, top, width & height property. Initially I designed a chart of width that should accommadate on the screen without the use of application's scroll bar itlsef. But after this problem occurred, it's
width got extended about 30%. Also is there any way to overcome the scale overlapping problem?

Can Anyone help me out on this issue?

Regards,

Kousy

[devchander]

Hi Kousy,

My suggestion will be, why not stack plots in your chart?

This way,  you can have a common x axis but an independent y axis for each of the plots.

think about it

Regards

Dev

[Jarrod_S.]

Which version of LabVIEW are you using? If you have LabVIEW 8, you could consider using a Mixed-Signal graph that can accomodate signals of different ranges, types (digital, analog, etc) all graphed along a common x-axis. It has separate viewing regions, scrollbars, etc. This could drastically reduce the amount of code used in your application, and provide a very professional user interface.

Take a look at this feature and others!

[devchander]

Hmm, labview 8 seems to pack a lot of simplifiers.

But i gotta wait for a while till i can start doing on it 

[Kousy]

Hi,

I read ur reply Mr.Jarrod. but I am using LabView 7.1 version.

Mr. devchand, I dont know how to make stack plots. Is the width to the left of the actual plotting area is adjustable? I hope I should use transparent property of waveform chart to do stacking. but in vain. Sending out an example would be helpful for me to understand.

Regards,

Kousy

[devchander]

Hi,

This attached example illustrates stack and overlay for charts

right click on the chart plot area and select stack plot/overlay plot option in the dropdown menu

Regards

Dev