Dynamically resizing stacked plots depending on visibility of scale

Hi,
is there a way to change plot width in a chart with stacked plots, depending on visibility of scales and number of digits of scales _and_ without resizing width of the chart when all scales are invisible?
The problem: when all scales are invisible and the number of digits increases, the chart's width decreases and the scales move a little to the left.
Thanks a lot in advance.
Cheers,
Martin

Hello Martin,
Could you please attach some sample code of your question. Also, if would be really helpful if you could document the front panel of the code with what to do in order to see the problem you are seeing with the chart's width decreasing.
Thanks.

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Change properties inside dynamic stack plots

Is there any way in LabView 8.2 now to change the properties of indicators inside an array or cluster? I want to change the properties of the waveforms inside DynamicStackPlots (http://zone.ni.com/devzone/cda/epd/p/id/3024). I see on this forum back in 2005 this was last discussed. I have also tried making a cluster of waveforms (instead of an array of clusters) from which you can at least separately access properties (allowing you to make specific waveforms not visible, yielding dynamic stack plot functionality). But you STILL cannot modify, say, the plot min range, label, scale... etc.
All ideas welcome!
Thanks,
Adam

Hi, Adam.
This question seems to pop up every once in a while. The answers are different for arrays and clusters:
Clusters
You can access the properties using an explicitly-linked property node (IE, one that takes a control reference as an input). You can obtain a reference to the controls in one of two ways:
- Right-click on the control (inside the cluster) and select Create»Reference.
- Create a property node for the cluster and access the Controls[ ] property. This will give you an array of references to the controls inside the cluster, and you can pass that into the explicitly-linked property node. (You may have to use a To More Specific Class VI if you want to access properties that apply to only graphs.)
Arrays
Since arrays are for holding a large quantity of indentical data types, the properties for all elements of the array must be the same. If you really want to sidestep this functionality, however, you can always create an array of references to controls. If you wanted to do that, you'd have to create all your controls individually and then create references for them one by one. Once the references are created you can pass them into a Build Array VI. To alter the properties of any particular control, you'd use an explicitly-linked property node and pass in the appropriate reference.
Let me know if any part of this isn't clear. Have a nice evening!
Message Edited by sarahk on 10-25-2006 04:35 PM
Sarah K.
Search PME
National Instruments
Attachments:
clusterControlReference.GIF ‏6 KB

Dynamically stacked plots of chart

In LV 2009 it is still not possible to set the number of stacked plots of a chart programmatically. Is there any useable workaround?
Before I start measurement I know how many channels I will acquire – between 1-16.
Before the measurement starts I want the chart to display as many plots as I have charts
I am building exe in the end (in linked thread is proposed some workaround that doesn't work in executables)
My only suggestion so far is to use 16 stacked plots and play with their height and position to hide and show them = not very friendly. Thanks for any suggestion
Message Edited by ceties on 01-12-2010 03:28 PM
LV 2011, Win7
Attachments:
StackedPlots.vi ‏14 KB

If you somehow manage to execute the program with "overlayed" plot selected (with the number of stacked plots wired to the property node )and then switch back o "stack plots" progrmatically i think you can solve this...
Guru
Regards
Guru (CLA)

Stacked plots

Is there a way to have a stacked "Waveform Chart" with 8 stacked charts but display 16 plots, 2 on each chart?

Ok I found a way to do this. It is not exactly straight forward but the attached VI and control show what you want. The secret is in customizing the graph and using the "Y Scale Index" property.
Follow these steps and you should be golden.
1. Create your stacked plot with the 16 plots. So you will have 16 tiny little plot areas... no worries.
2. Take a look at the attached code and see how you can select the active plot and then the Y Scale Index associated.
You at the moment have 16 plots and 16 Y scales. Simple change the Y scale index of the last 8 plots to be 0-7.
3. Try that and notice you now 16 plot areas 8 plots with 2 plots on it, and then 8 that are empty.
4. The last thing is to get rid of the 8 "blanks".
5. Select the last 8 plots and make their Y scales not visible.
6. Finally right click on the chart and select customize.
7. Select window>> Show Parts Window. In that new window you can find the last 8 plots, and set their hieght to 1, and change their location. I suggest moving them under the top plot.
8. At this point you have a lot of free space. Select one of the remaining plots and increase its height to what looks good for just one plot area. Then select the 8 that you want to show and you can use the "Resize Objects" ring in the tool bar to make them all the same size. Move them to where you want and bingo.
9. You should now have 8 visible plots, and 8 that are hidden. Save the control and replace the one on your Front Panel.
You should be done. Let me know if or where you get lost because I know this is kinda strange.
Evan
Attachments:
Overlaid graphs.ctl ‏31 KB
Overlaid graphs.vi ‏50 KB

How do you programmatically switch between a stack plot and an overlay plot with a waveform control?

One method i realize is to have two waveform controls, one visible and one not visible. The real issue here is, how to dynamically control the number of plots in a stacked plot. My case,
i will have between 2 and 8 channels. I have found that in the properties if i set the number of plots - Legend--Plots shown . I can control the number of stack plots, however, i must toggle from overlay to stack plots in design mode for the correct number of stack plots to be shown. Does anyone know a way around this problem or know of the property that has alluded me?

Hi,
You cant select between Stack plot and Overlay programmatically. Well not in LaBVIEW 5.1.1.
You could have two Charts, one set up for Overlay and the other setup for Stacked. Then hide the one you are not immediately using.
Ray.
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Ray Farmer

"Fill base line"/"Fill to" problem within stack plots

Hi there,
I try to plot multi data sets within the stack plots waveform chart. But I can't control the Fill To option correctly for the plots other than the first plot in the window. As attached, even I set the fill baseline to zero for the second plot (the green one) in the first window, it performs like fill to -infinity. I am using Labview 2010 DS2.
Any solution? Or, I made any mistake here?
Thanks.
Attachments:
Stack Plot Fill Baseline.vi ‏12 KB

I agree things behave a bit weird if the number of traces is not a multiple of the number of stacked plots. Do you want three stacked plots or have two traces share one of the plots? Maybe you should use more defined data structures, e.g. an array where each element is a clusters of size=3.
Try the following:
resize the plot legend so 4 stacked plots show.
Now resize it again for two stacked plots.
In my case, the fill to zero is now correct.
LabVIEW Champion . Do more with less code and in less time .

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quite below is the quoted text message is from Java Substance Forum: http://www.nabble.com/Removing-top-left-substance-menu-and-deactivating-Background-painting-while-Resizing-a-Frame--to17775101.html
Is it somehow possible to use substance or another LooknFeel with custom titelbar and still keeping a hidden JFrame background resizing? So if i resize a JFrame only a rectangular should be visible not the content of the window should dynamically resize.
That would be a general Swing question to ask in Swing forums on java.net or on java.sun.com
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----- Original Message ----
From: PEL <liquidc4d@...>
To: users@...
Sent: Wednesday, June 11, 2008 9:07:36 AM
Subject: Re: Removing top left substance menu and deactivating Background painting while Resizing a Frame?
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Plotting 6 curves in 3 stacked plots?

I've got some filtered x,y, z coordinate data which I'm currently plotting to a waveform chart with stacked plots. How can I include the unfiltered data on the respective plots?
ie. 1 plot displaying x filtered and unfiltered together, y filtered and unfiltered together etc.
Solved!
Go to Solution.

Hey Graham,
Interesting question!! It has taken me a while to figure it out, but is certainly possible - even if the solution is a bit of a fiddle.
Please see the attached code. To impliment your functionality, I had to...
Bundle all plots (in this case 4) in to a single cluster, and send them into a "stacked chart".
Resize the plot legend to show all 4 plots.
Right click each item in the legend, navigate to Y-Scale and then select which window you would like to show the plot (1-4)
This means that 2 of the windows will show 2 plots each, and 2 of the windows will be empty. Unfortunately, I was unable to "hide" a window - so this is where the "fiddle" comes in - I just resized and repositioned each of the "windows" to effectively only show 2 of them in our stacked chart.
I hope this has been useful Graham,
Best wishes,
Rich R
Applications Engineer
National Instruments UK & Ireland
Attachments:
StackedPlot.vi ‏18 KB

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STACKED PLOT Y-AXIS
I have a stacked waveform chart showing four plots
Each plot correctly appears on a different sub-plot
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Attachments:
stackedplot_yaxis_edit.zip ‏22 KB

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stackedplot_yaxis_edit2.vi ‏66 KB

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toomanycolors1.JPG ‏25 KB

Dynamically resizing stacked plots depending on visibility of scale

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