XY Graph with two Y inputs

I need to know how to graph a XY graph with two values of Y. I need to it to compare to different angles and I also would like to make them graph different colors. Currently i have an XY graph with one Y input using the XY Graph express VI. I found out how to set up for two simultaneous plots by editing the properties for the graph but I don't know how I can input another Y value to plot using the XY Graph express VI.
Thank You,
Phil

I never use the express functons but I think what will work is to use the merge signal function. Try merging the two x inputs together and merging the two y inputs together. I made a modification to the shipping example called Lissajous.vi to try a quick test.
Attachments:
lissajous_mod.JPG ‏54 KB

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How can i control graph with two inputs?

Hi,
i would like to ask you about the graph with two inputs
Normally, if i just give one input, they generate the graph with this input(y) vs time(x).
But now i would like to get the graph with my two inputs in x axis and y axis .
i want to control both of two axis. How could i do for it ?
i attached the file that i try to use "Build XY graph" to control both x and y axis with random number .
It can run but i don't know how come the graph show nothing. .
Actually , it have to show something like wavefrom continuously. am i right?
Could you tell me a way to solve it ?
>>>
what i want to get is ..
in Graph,
for x axis , ditance (always increases)
for y axis , vibration (vary)
>>>
Thank you so much for your time . I am looking forward your kindly reply.
With Respect,
Su
Attachments:
using Build XY graph.vi ‏59 KB

Hi NI9233,
Mind me to interrupt, I am just helping Mike to explain what he meant to you, refer to the graph:
Picture 1:
Double click on Build XY Graph, uncheck the clear data on each call
Picture 2 and 3:
Change your formula node into +1 Basic Function in Functions Pallette.
Hope that helps!
PS: I am sorry for the size of the image, seems I made a mistakes when I saved the picture.
Sincerely,
Krisna Wisnu
Message Edited by Krisna Wisnu on 11-19-2008 08:19 PM
Sincerely,
Krisna Wisnu
Attachments:
Clear Graph on Each Call.PNG ‏46 KB
+1.PNG ‏30 KB
+1_2.PNG ‏21 KB

How do I create a graph with two different y-axis variables with the same x-axis (therefor having two curves)?, How do I create a graph with two different y-axis variables with the same x-axis (therefor having two curves)?

How do I create a graph with two different y-axis variables with the same x-axis (therefor having two curves)?, How do I create a graph with two different y-axis variables with the same x-axis (therefor having two curves)?

Hi Libby,
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Hello again.
I should have explained my example more. I used the same signal for both the X and Y inputs of my XY graph, so the linearly increasing line is expected behavior. In order to do what you want, you need to use a split signal VI after the DAQ Assistant express VI. Once you place the split signal VI on the block diagram you can expand it so that it has two output nodes and wire them to the X and Y input terminals of the Build XY Graph express VI.
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Message Edited by Brooks_C on 11-30-2007 03:39 PM
Message Edited by Brooks_C on 11-30-2007 03:40 PM
Brooks
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Split Signal Build Array2.JPG ‏37 KB
Split Signal2.JPG ‏20 KB

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> when i try to wire a 2-D array of data to the value property of a
> graph(strict control reference), it shows a conflict. The value data
> type only shows up as accepting a 1-D array input. I want to use
> control references to pass the chart data to my main vi. Will I have
> to change the waveform graph control reference into an array control
> reference to make this work?? This would require adding a while loop
> in the main vi to read the array data and update the graph data??
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Go to Solution.
Attachments:
Example.vi ‏139 KB

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Attachments:
Master_v2.vi ‏98 KB

duplicate post. Try to to keep the same question in one thread. What is wrong with adding all of you channels to the single task as recomended?

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Synchronizing two counter frequency inputs with multiple analog inputs

Hello all,
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Solved!
Go to Solution.
Attachments:
SimpleDAQ.vi ‏44 KB
LV_Error.JPG ‏31 KB

Maybe third times the charm?
So I've finally got a good handle on why the VI is having problems at low RPM though I'm somewhat embarassed how long it took me to do that
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Attachments:
SimpleDAQ_1_Start Stop.vi ‏48 KB

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