LabVIEW XY graph point style bug

I have a XY graph showing two or more signals
I have seleced a circular point for the data poins of the first signal.
When I try and select te same point for the second second, it shows up as at diamond with an open space in the middle.
Bug?
LV 2011
Solved!
Go to Solution.

This is the problem:
When access the plot legend and I choose THE SAME point style (First row, third column) for both graphs, why do they then appear differently in both the legends and in the graphs afterwords, just as shown in the picture ???
Simple as that.
I put the graph with data as an attachment so anyone can see if they get the same. LabVIEW 11.
Attachments:
XY bug.vi ‏11 KB

Similar Messages

Custom Icon / Marker / Point-style on Graph

Is there a way I can use a custom icon (or point-style) on a graph or chart? I want to place a series of points on an XY-Graph but I don't want to use any of the built-in point styles, I want to use a .gif file I have. I have toyed with the idea of converting an XY position to a screen position (in pixels) and hiding / showing an icon already on the front panel, and moving it. This seemed like a bit of a hack to me, I'm hoping there's a better way.
Thanks

ptilghma -
I know you can modify programmaticaly:
Graph palette
Plot legend (waveform chart, waveform graph, xy graph, and digital waveform graph only)
Scrollbar (charts only)
Blinking plot
Label scroll position
Active X/Y Scale
Using property nodes but I don't think that it modifies the icon.
I think mapping out the screen and applying some sort of logic to replace the points is your only way out.
Here is a link describing the use of property nodes in graphs
http://digital.ni.com/public.nsf/websearch/A0525AF9D64408F186256BFB005970EB?OpenDocument
Best Regards
Bruno Noronha
Bruno Noronha
Certified LabVIEW Associate Developer
Using LabVIEW 8.6

Custom Cursor point style on XY graph

Is there is a way you can change the point style of a cursor on an xy graph to somthing custom, possibly an image or somthing else. Basicly Id like to have very many point styles, but more then just whats in LV, Id want some that actually look different.
Thanks,
-Mark

Hi Mark,
You can use an event structure to detect when the mouse enters or leaves the XY graph. When the mouse enters you can set the cursor using the "Set Cursor" VI and when it leaves you can unset the cursor using the "Unset Busy" VI. You can create a reference to a custom cursor beforehand using the "Create Cursor from file" VI. Unfortunately none of the VIs that I mention here are available with the base package.
I've attached an example program written in LV7 on Windows. (note: you need a .ani or .cur file for the cursor you wish to use)
Hope this helps,
Neil
Attachments:
XY_Cursor.vi ‏83 KB

Custom cursor point style

Is there is a way you can change the point style of a cursor on an xy graph to somthing custom, possibly an image or somthing else. Basicly Id like to have very many point styles, but more then just whats in LV, Id want some that actually look different.
Thanks,
-Mark

me too i want this option.can i make the cursor as a small car or small dog......?
can any body help me?

Labview Intensity Graph Vertical Axis Label

When I change the font of the vertical axis label of a Labview intensity graph, the label disappears. Is this a Labview bug or is there a way to correct the problem?

Here are those screenshots... I was a little quick to submit
- JLS
PS - of course, when you're editing the free label, it doesn't have those nasty affects, and if you group the objects (see the Free Label and Grouping screenshot) it behaves (at least cosmetically) much like a native graph label
Best,
JLS
Sixclear
Attachments:
Free Label and Grouping.JPG ‏81 KB
While Typing.JPG ‏66 KB
After Typing and Clicking Off the Graph.JPG ‏67 KB

Multiple xy graph point by point

Hi,
I would like to plot multiple trace xy graphs point by point. If I plot one trace, it does show up point by point, but plotting multiple traces, they traces show up one after another and not point and point. Attached is my code. Any help would be appreciated.
-Tim
Solved!
Go to Solution.
Attachments:
testmultixyplot.vi ‏26 KB

That's because you use 'Replace array subset', the element you try to replace does not exist, that means the new element is not placed inside the array.
Use the following code construct instead:
Ton
Free Code Capture Tool! Version 2.1.3 with comments, web-upload, back-save and snippets!
Nederlandse LabVIEW user groep www.lvug.nl
My LabVIEW Ideas
LabVIEW, programming like it should be!

Mouse Pointer resizes when applying pointer style to all

When Captivate records my SW demo, it uses up to three different mouse pointer styles at different times (Haven't quite figured out what the protocol is). I really don't like this and would like only one style used (the hand). So when I right click on the hand pointer on a slide, and choose "Use the current mouse pointer for all slides," any pointer that was automatically changed to the hand pointer is much smaller (shrinked by 50%) and I still have to end up manually selecting the hand pointer for each one.
Does anyone know why this is happening?
Is there a way to select a default or standard pointer to be used at all times?
TIA,
Vicky
Captivate 8 user

Here's the shortest code with the problem I could come up with.... You can run it if you create two different default paragraph styles: 'Product - Description' and 'Product - Title No Indent';
The problem is that the first line should have 'Product - Description' style, but it instead it gets 'Product - Title No Indent'.
If I comment out one of the paragraphs, everything works fine. What's wrong?
var doc = app.documents.add(),
    product, text_frame, i, l;
product = {
    'text': [
            'style': 'Product - Description',
            'text': 'Designed for monitoring sterilization processes.'
            'style': 'Product - Title No Indent',
            'text': 'Designed for monitoring sterilization processes.'
            'style': 'Product - Description',
            'text': 'Designed for monitoring sterilization processes.'
text_frame = doc.pages[0].textFrames.add();
text_frame.geometricBounds = [ '0pt', '0pt', '240pt', '300pt'];
for ( i = 0, l = product.text.length; i < l; i++ ) {
    text_frame.contents += "\r" + product.text[i].text;
    text_frame.parentStory.paragraphs[-1].appliedCharacterStyle = doc.characterStyles[0];
    text_frame.parentStory.paragraphs[-1].applyParagraphStyle(
        doc.paragraphStyles.item( product.text[i].style )

How to add scroll bar to a labview wave graph?

I want to know if there is a to add scroll bar to a labview wave graph.

Look here:
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=5065000000080000001E400000&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0

MATLAB pcolor and LABVIEW Intensity Graph

Hello all
I have a data matrix which i want to plot using intensity graph of LABVIEW. My problem is that when i plot this matrix using MATLAB pcolor along with "shading interp" command, i got a very fine and smooth coloring graph of this matrix, however, using LABVIEW Intensity graph along with getcolor vi, i was not able to get a smooth coloring graph comparable to MATLAB pcolor. I have tried many setting but results were not satisfactory
Is this due to a limitation of LABVIEW intensity graph or i am missing something? Kindly help me
Best Regards
Asim

Thanks for providing that Asim, unfortunately the VI you provided is unusable as-is. There is a subVI missing, and while not critical, it's difficult to tell how you're setting up the intensity graph without that VI. Additionally, it doesn't appear that there is any graph data included in the VI you provided and a third-party software license would be required to use this VI. Could you upload the data you're handling in a format that works without any external tools?
As for thoughts on the differences in the plots; they are largely similar in appearance, although it does appear that you're using a different color scale in LabVIEW- the majority of your scale is in the blue-green range, rather than continuing linearly through yellow, orange, and red. You're going to lose a lot of visual resolution in the ranges you're highlighting due to this. The plot you're trying to achieve also appears to be interpolated or blurred around the edges of bins, are you actually plotting data between integers on the x-axis, or is this an artefact introduced by the software?
Regards,
Tom L.

How do I invert meter in labview with needle pointing downwards

Hi,
I need to invert meter in labview with needle pointing downwards .
Can somebody guide me?

Try rotating the scale. The needle will follow the scale. This should help.

Copy/Paste Layer Style Bug

Really, you guys didn't fix the copy/paste layer style bug in 13.0.2. Wow, easily reproduced, there is an adobe recommended workaround, meaning very aware of the problem, and couldn't fix it for this update, very sad Adobe, very sad. Can you let us know when this will be fixed?

The 13.0.2 update was targeted to fix one specific bug. It was not intended to be a general bug-fix update.
We are testing a fix now for the layer styles bug and others, and we intend to include these fixes in the next general update, which is currently slated for release in less than two months.

How can you evaluate a graphed point in numbers

After you make a graph and incorporate a trendline. How can you evaluate that trend line at a specific x/y value point, even if it is not a graphed point in your table?

If you know the constants from the trendline then you can use them to extrapolate. To get the constants check the "Show Equation" box in the Chart Inspector > Series > Trendline
On the graph you will see the equation for the trendline:
In this case the equation is "y=2.6x + 2"
I added a new column to the data table and named is "Y extrapolated".
Then I highlighted the graph
Then click on the "sprocket " for the X values in the data table and select the "Share X Values"
Then click and hold the little circle at the bottom right corner of the selection in the table (to add the new column to the graph), then drag to the right one colum (my column is green).
Then in the new column add the formula as shown:
C7=2.6*A7+2
select C7 and fill down as need (by clicking and holding on the little circle at the bottom right of the selected cell).
I hope this helps

XY graph cursor position bug

I have reproduced the bug mentioned here:
http://forums.lavag.org/Graph-Cursor-XY-Position-Bug-t1366.html&gopid=40859#entry40859
I've reproduced this bug (?) in Labview 8.5, with an XY graph doing
much the same as Jack. The attached zip file contains a stripped down
version of my program (originally written by my coworker, Andrew
MacDonald). Run "RENA3 Data Viewer.vi" and follow the instructions.
As Jack said, changing Cursor.PosX to Cursor.Index solves the problem.
I did not find this bug mentioned anywhere other than the above link.
Fraser
Attachments:
XY Graph Cursor Bug.zip ‏142 KB

Hi Karla,
Sorry if that wasn't as obvious as I thought! :-) Hopefully the attached image makes it clear. On the front panel, 'Cursor Channel' is inputted. This is directly wired to Histogram.Cursor.PosX. Immediately following, Histogram.Cursor.PosX is read and wired to the front panel indicator 'Cursor.Cursor Position:Cursor X'. There is always a difference of 15 or 16 between the two values. If there was no bug, these two values should be identical! I can only conclude that Labview is doing something funny...
As I mentioned before, changing Cursor.PosX to Cursor.Index fixes the problem.
A bit of background: my FWHM function outputs the peak channel, and the cursor is supposed to go through the peak so you can have a visual check that it is analyzing the right peak. I noticed that the line would never go through the peak; the line would always have an offset. After wasting a couple of hours, it became clear that I was wiring the correct value into 'Cursor.PosX', but something was going wrong beyond that.
Cheers,
Fraser
Message Edited by fjharris on 01-25-2008 11:34 AM
Message Edited by fjharris on 01-25-2008 11:36 AM
Attachments:
Labview Bug.png ‏27 KB

Graph Annotations - Major Bug !!!!!

I am using annotations on a NiGraph control(2D, single plot chart). I update the X and Y coordinates of specific annotations using m_Graph.Annotations.Item(item).Caption.SetCoordinates(... , ...)
this is done around 3 times per second. Each call to SetCordinates(...,...) causes a memory leak!!! Over a period of time my application uses up all system memory. I have validated this bug by running the National Instruments Annotations example and pressing the 'Generate Waveform' button whilst monitoring the memory usage using NT's Task Manager. Your example also leaks memory each time the annotations are repositioned !!!. Each time my graph is scaled X or Y (I use a slide control for this purpose) I reposition all annotations so they
fit nicely in the view port of the graph. This operation generates many calls to the m_Graph.Annotations.Item(item).Caption....etc) and subsequently leaks memory at a vast rate. Graph annotation are the cornerstone of my application and I am very concearned that due to this bug my application is unusable.
I would appreciate any help on this matter.
Shaun

I must disagree with your answer. I feel that the discussion forum the ideal place to warn engineers around the world of the problems with your software. This posting could save developers such as myself from developing a, at present, useless (and expensive) application. I did indeed request support and reported this bug to National Instruments (UK). Unfortunately they had no knowledge of it and could not help me any further but thanked me for pointing it out and advised me to “Watch the website for future Measurement Studio Updates”. As the Product Support Engineer for Measurement Studio and LabWindows/CVI I feel you answer was far from helpful, only pointing out this bug has been verified. Information such as possible work arounds, new
version release dates or patches would have been useful. Perhaps even helpfully passing my details to one of your Technical Engineers so we might arrive at a solution. I would have rated the answer 0.5 stars but there was no icon to click.

XY graph - point text

Hello,
is possible to draw in XY Graph each point with coordinates like on attached picture(but this is only photomontage). On picture is standard XY Graph, with "Fill Base line to zero", but this is not important. Important is how to equip each point with text label like in Excel (picture 2).
Does anybody know the solution?
Thanks
LV 2011, Win7
Attachments:
pictures.zip ‏14 KB

One method is to use blank cursors with labels to add text to points. Mads gives a good example of this here:
http://forums.ni.com/ni/board/message?board.id=170&message.id=64788
2006 Ultimate LabVIEW G-eek.

LabVIEW XY graph point style bug

Similar Messages

Maybe you are looking for