XY graph datapoint display using cursor

Hello to all, I am using XY graph to display amplitude v/s time. While running the vi, data is continuously plooted on graph till user stops the vi. I want to add a feature such that, while running the vi, when user click on the graph on particular position using cursor, it should display corresponding time value and amplitude value of that point. I mean value of Y-axis corresponding to X-axis not the cursor position. When using cursor position, it is ok with X-axis but it shows the position of cursor for Y-axis (as property says) , and I want datavalue of that point not y-axis position.
I hope it is clear with question. Let me have some example...for y=x graph shown below, you can see for cursor x=4.4 and y=6.8, how to display corresponding datapoint which shoud be y=4.4
Solved!
Go to Solution.

While creating (or even after you created), choose 'Snap to' Plot 0.
Don't let it be 'Free Dragging'
Example attached.
I am not allergic to Kudos, in fact I love Kudos.
Make your LabVIEW experience more CONVENIENT.
Attachments:
Snap to Plot 0.vi ‏10 KB

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Line using cursor in xy graph

hi
how i can draw line using cursor in xy graph
Solved!
Go to Solution.

Hi bijal,
Not sure what you are planning to do. But you could start with:
Creating a XY graph.
Right click on the XY graph >> Visible Items>> Cursor Legend.
Right click on the cursor legend >> Create Cursor >> Free. Up to this step, you should able to create the cursor.
To obtain the data from the cursor, go to your block diagram >> right click on the XY graph terminal at the block diagram >> Create >> Property Node >> Active Cursor. This should create the property node for your XY graph. To change a selected property to write, right click on the active cursor >> Change to Read and it should be like below:
Just input 0 to access the first cursor
Expend it to access an additional properties >> on the second property, click on it >> Cursor >> Cursor Position >> Cursor X.
Expend the properties until you see as below:
It Cursor.PosX and Cursor.PosY isn't changed to write, do change it to write by right clicking on Cursor.PosX >> Change to Write. Do the same for Cursor.PosY
Up to point 6, you should be able to obtain data from the XY graph cursor.
Use those values to plot into the XY graph. I believe you'll need to find a way to plot XY graph by building an array of clusters.
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Identify peaks on graph using cursors

I have a piece of analysis software that is supposed to identify event shapes based on peaks in a histogram (attached, along with a sample data set). Following the advice of users in my last thread, I rewrote the program in what I hope is a much improved way. My first question as a LabVIEW newbie: please critique my code. Suggestions for improved style/readability are more than welcome.
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(disclaimer : I haven't looked at your VI).
One way to use the cursors would be to create one (in EDIT mode) and have it snap to plot 0.
It will therefore always be on your plot.
You can show the readout (Cursor Palette) if you like.
In the code, it's just a property of the graph.
You could respond to changes in cursor position and provide your own readout, if you like.
Provide a button (or menu item) to DO IT, and when the button is clicked, you remember the X and Y cursor value (read the properties) and use that Y value as your peak.
you could also look up some other value at that X location, if that does anything for you.

Labeling points on XY graph with numbers. Trying to use cursor names.

I have found some example vis in the NI Developers Zone that label the points using Cursor Name attribute. I have some success, but results are not consistent. I need up to 100 labels...is there a limit to the number of cursors? Is there a way to initialize 100 cursors without using Cursor Legend? Sometimes the cursors do not appear or do not move...they don't seem to be consistent. Any other ideas to solve this problem? Would it be possible to show the number of the point when the cursor is moved to that point. I am using LabView 6.0. windows 2000.
Thanks.
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> Problem: When trying to change cursor position programatically using
> attribute notes, the cursor position will not change.
>
> I found this in the knowledgeBase. Solution: Unlock the cursor.
> Cursor position attributes are read-only when the cursor is locked.
> Liz
> Still looking for answer of a way to initialize 100 cursors with
> Cursor legend.
>
If you want to do things programmatically, like set the cursor text to
match the X or Y value of the point, read the value, format the string
and write it to the name of the cursor.
If you want to init 100 cursors interactively, you can popup on the edge
of the cursor legend and show the index. The cursor legend is simply an
array of clusters of cursor info. Set the index to 99 and type in a
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sure if that is what you meant.
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Generate report using CURSORS? - Simple question

Folks,
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FROM XXXWD.WD_DUPS DUPS, OE_ORDER_HEADERS_ALL OHA
WHERE OHA.ATTRIBUTE11 = DUPS.ATT11
AND OHA.ATTRIBUTE12 = DUPS.ATT12
AND OHA.ATTRIBUTE16 = DUPS.ATT16
AND (OHA.FLOW_STATUS_CODE NOT IN ('CLOSED', 'CANCELLED'))
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Here's one query that will give you everything:
SELECT OHA.ORDER_NUMBER
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      ,DUPS.ATT16
      ,OLA.LINE_NUMBER
      ,OLA.ORDERED_ITEM
      ,OLA.FLOW_STATUS_CODE
FROM   XXXWD.WD_DUPS        DUPS
      ,OE_ORDER_HEADERS_ALL OHA
      ,OE.ORDER_LINES_ALL   OLA
WHERE OLA.HEADER_ID   = OHA.HEADER_ID
AND    OHA.ATTRIBUTE11 = DUPS.ATT11
AND    OHA.ATTRIBUTE12 = DUPS.ATT12
AND    OHA.ATTRIBUTE16 = DUPS.ATT16
AND    OHA.FLOW_STATUS_CODE NOT IN ('CLOSED', 'CANCELLED')
AND    DUPS.ATT11 <> 'WESTERN SERVICE'
ORDER BY OHA.ORDER_NUMBER
         ,OLA.LINE_NUMBER
         ,DUPS.ATT11
         ,DUPS.ATT12
         ,DUPS.ATT16
;(correction in order by clause)
Message was edited by:
Eric H

About using cursor expressions in Oracle Reports

I've just discovered a rather old syntax of the mighty select statement. It seems related to the concept of inline view or more precisely scalar view. It's the cursor syntax in a select statement.
Example:
select d.dname
,cursor(select e.empno,e.ename,sal
from scott.emp e
where e.deptno = d.deptno)
from scott.dept d
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.oO(saka34)
> I want hyperlink to display when cursor hovers the link.
I have PHP website
>which I want to edit in Dreamweaver. For example when you
see in yahoo or msn
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Dear All,
I am sorry to say that I don't whether I can make you understand me.
I want to know that in a graph how to use one pixel to display two point. Is the value of the pixel average of the two values of the point?
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Any way to use cursor values inside other cursor by bulk collect?

hi,
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XY graph datapoint display using cursor

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