Plot two graphs in same XY graph

Hi
i want to save the graphs which are generated by a Vi into a file programically
how this can be done
thanks in advance
augustin
Certified LabVIEW Associate Developer
Solved!
Go to Solution.

Rajaa,
Obviously the XY graph has been constructed using X and Y data. It should be better (faster and memory saving) to use directly these data than to use a property node to retrieve them...
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...

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Plotting two graphs in one single graph

Hi. This is my first time using control and simulation. I want to plot two graphs within a single graph. It seems that I have to use bundle and build arrays functions but I just do not know how to plot them. The x points and y points of (2) are just defined by a single set of points included in the array defined. The x points and y points of (1) are results of another formula, but both plots would fit in the same location of a single graph. I hope my question is understandable. I attach part of the model that I want to be plotted.
Thank you
Solved!
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Attachments:
two graphs.JPG ‏26 KB

Hi,
You can try something like this. Check the attached VI.
Regards,
Nitzz
(Give Kudos to good Answers and Mark it as a Solution if your problem is Solved)
Attachments:
Untitled 3.vi ‏39 KB

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Please don't start a new thread. Stick to the original.
http://forums.ni.com/t5/LabVIEW/How-to-plot-waveform-or-graph-using-table-database-which/td-p/294036...

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Hi Dazza,
The link below takes you to a page which should provide you with what you need. Let me know if you need further help.
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How can I plot two sets of data points in 3d graph?

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Message Edited by altenbach on 04-23-2009 01:11 PM
LabVIEW Champion . Do more with less code and in less time .

I would like to plot two lines with an xy graph in realtime

I understand how to plot in real time with an xy graph appending to an array, but I would like to simply put a line so I can see when my first plot crosses a certain value on the y-axis, say at like y=30. So I would like to know how it is you can plot two lines in real time. I'll put in my vi so you can take a look at what I have so far. On my vi the array is shortened to contain only 5 values so as not to take up memory.
Attachments:
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Hi,
I have made certain modifications to your vi so that now it plots two lines with an xy graph in realtime.
Regards,
Ankita A.
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Attachments:
multiplot_XY_graph.vi ‏55 KB

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In the course of my research i have come up up with a problem where , i have two different graphs having the same xy config and the same time scale.What i need is a difference plot the difference of the two graphs.Can anyone please suggest a way to go about it ??
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this might help:
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I have an XY Graph plotting lines over an Intensity Graph. If my program runs for long enough I need to be able to X scroll the intensity graph and have the XY graph scroll accordingly so that the two graphs remain in sync. I thought that outputing the x.min and x.max properties from the intensity property node would do it, but the x.min and x.max do not change with scrolling
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Stephan,
Attached below is a small example of how to accomplish this. All it does is monitor the first graphs scrollbar and sets the second's to the same location.
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Hi all,
I'm working on an HMI "front" for a larger acquisition/analysis system, that includes continuous performance monitoring of a turbine. The results of the measurements are stored arrays of contour lines, that represents turbine efficiency and guide vane openings. This analysis is all performed in the background. In the HMI, the performance data is loaded from file when the specific "report" is requested, and is plotted in an XY graph. I would like to indicate the current operation point of the machine by using a plot that is a single point. Thus, that point's position among the contour lines indicates the current performance of the turbine. This point is updated once every second, while the performance data remains the same for considerable amounts of time between recalculations (days to weeks).
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Solved!
Go to Solution.

You cannot redraw a single plot. If you want to update a single plot, you need to retain all plots in a shift regsiter and replace the data of the desired plot. However, your problem seems much simpler than that. To show a single point on a nearly static plot you have several options.
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LabVIEW Champion . Do more with less code and in less time .

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Hi Vimal,
Go throungh the following code. it will help you.
REPORT Z_3DGRAPH.*structure declaration for performance measurementTYPES: BEGIN OF ty_performance,
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    EXCEPTIONS
      others    = 1.
Regards,
Rajesh Kumar

Help needed in plotting Line Graph!!!!!!!!!Pls help!!

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Please help!

You describe your need, but not where it originates from.
Is it a programming assignment? If so, I hope this is not your chosen major, as you will fail because you are a non-resourceful plagarist.
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Hi Shrikant,
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GerdW
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Prototype_Plot_Switch1.vi ‏31 KB

Hi,
i'd changed a little bite your code. Cause if you set the line color to transparent, the legend must also be transparent. So, I think that you can't go that way.
See my approach.
Software developer
www.mcm-electronics.com
PS: Don't forget to rate a good anwser ; )
Currently using Labview 2011
PORTUGAL
Attachments:
Prototype_Plot_Switch1 changedvi.vi ‏24 KB

Problem With Plotting a graph

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I need help plotting a graph.
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Hi,
Here is a photo of what I want to do with the graph.
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Attachments:
tr1.JPG ‏113 KB

Plot two graphs in same XY graph

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