Polar plot scale numbers "truncated"

I have a strange problem when using the polar plot VI.
Labview 2012 latest SP, running on a cRIO9074. I'm running a servo motor for one revolution while measuring the runout on an armature using a linear position sensor.
The data looks good, but for some reason, the scale labels truncate after two decimals, no matter what I set the precision to. I'm sending it a cluster of two double precision arrays.
When I run the Labview example, it works fine I can change the number of decimals viewed to 10 if I need to. I've tried keeping everything the same as the example.
Any ideas?
See picture.
The sample VI works fine, (I can set the precision to 6 and I will see 6 decimal positions. )

Thanks for the response, Kurt. With the help of a colleague, we were able to determine that this behavior is only when the VI is running on the cRIO.
(I think it was called "Polar Plot Demo.vi", but yes the VI is "Polar Plot with Points Option.vi"
We verified this by running the example vi first from windows (works fine), then ran it on the cRIO. On the cRIO it truncates decimals depending upon what font size you use. If you use a REAL TINY font, it will include more decimals. When running in Windows, the graph appears to move left to accomodate for more decimal place. When running on the cRIO, it appears to cut the picture off on the right side.
Following is our setup, but as stated above, we sent the demo program to the cRIO (didn't use any I/O) and the problem occured.
We're using Labview 2012, latest updates applied.
Modules are:
NI-9411 to read an Ono Sokki position sensor (quadature output from two channels, resolution is .0001 mm.
Ethercat set up using the "getting started" manual for the NI supplied AKD servo drive and motor.
All hardware works fine and data collected looks good. Test is to turn motor and collect servo position and linear encoder position.
Data has 4 decimal places coming in.

Similar Messages

  • Polar plot scale labels and background colour

    Dear Labview Forum,
    I am trying to create a polar plot.  However when I put the polar
    plot indicator on my front panel and wire up some data and parameter
    control boxes, the scale labels are missing.  See polar plot
    basic.VI.  Are the scale labels there or are they the same colour
    (black) as the background and hence not visible?
    When you compare this to the polar plot demo, the background is white and the scale labels are present.
    How can I control the polar plot background colour parameter?
    How can I control the scale label colour and visibility?
    Regards,
    Jamie
    Message Edited by Jamieg on 01-17-2007 02:18 AM
    Using Labview version 8.0
    Attachments:
    polar plot basic.vi ‏31 KB
    Polar Plot Demo.vi ‏33 KB
    polar plot basic.vi ‏31 KB
    Polar Plot Demo.vi ‏33 KB

    I'm so sorry  ... i am also unable to find the Propety Node... i think i mistook changing the Label/Caption bg colour as changing the whole bg colour... i'm so sorry...
    i've tried searching but to no avail... my apologies...
    all the best to your application...
    Best Regards,
    JQ
    LV 8.0 user...

  • How can I change the Y-axis (circular) grid spacing, in Polar Plot VI?

    When using Polar Plot VI, I need more control over the plotting parameters. This means tweaking the sub-VIs in various ways. What I need to do most is make the polar magnitude axis less busy, i.e. only draw circles every 10 instead of every 5 divisions, when using a range of 0 (outermost) to -80 (innermost).
    The magic 'magnitude axis subdivisions' variable seems to be generated in Calc Scale Specs sub-VI, and output as an array of clusters, but I can't quite see how it's created and from what.
    Please can anyone help me gain control over the number of magnitude division circles generated?
    Many thanks!

    I think if you go inside the Calc Increment.vi and modify the Increment output terminal it might change what you want to see. Try putting a multiply by 5 or ten into the case structure for when the log is false.
    Attachments:
    polar plot calc increment.jpg ‏90 KB
    modify calc increment.jpg ‏104 KB

  • Configurin​g polar plot

    I'd like to draw antenna patterns on a polar plot but it's annoying that I can't configure the degree scale. Is it possible in LabView 6.1 to set up 0 degree value at the top of the plot ??
    Thanks in advance

    See this thread for a vi to rotate an image.
    http://forums.ni.com/ni/board/message?board.id=170​&message.id=112801&query.id=80349#M112801
    Or take a look at the polar plot demo. There is a visible section button that lets you change the grid shape. Maybe you could add 90 degrees to your data.
    Go deep inside the subvi's of the polar plot demo. There is a Get Ready.vi that has a lookup table with the angle text.

  • How can I increase line width on polar plot?

    The lines plotted on a LabVIEW 6 polar plot (picture control) are very thin and do not show up well when printed. I would like to increase the line thickness (as can be done easily on the graph controls), but looking through the polar plot VIs, I cannot find any obvious way of doing this.

    The polar plots basically use the picture control to draw the lines on a plot. To increase the thickness of the lines you would have to draw another line right next to the line. I'm sure this could be done, but would require alot of messing about with the drawing subVI's to draw all lines in duplicate.
    Alternatively you could plot the graph twice, but the second plot has an origin 1 pixel out. This will double the thickness on the screen, but i dont know what it will print out like. See attached example in LV 6.0.
    Another thing to try is change the plot colours. You can make the gridlines black (instead of grey), and paint the background white. This makes the lines show up much better. I will also include this in the same example.
    I hop
    e this helps you..
    Kim
    Attachments:
    Polar_plot_lines.vi ‏37 KB

  • Problem using read from spreadsheet file and polar plotting

    Hi to all labview users,
    i am a beginner in labview and i am trying to do a polar plot.
    i read the polar plotting example in labview and it was straightforward.
    I used "write to spreadsheet file" to gather data.
    and they are in the following format
    13  10
    4  20
    8 30
    ....etc
    now. i tried using "read from spreadfile" to get the data into a array, then using "array to cluster" to convert the array into cluster, so i could connect it to the polar plot block
    however, it kept saying i couldnt connect that way, because polar plot uses 1-d array with cluster of 2 element and my source is a cluster of 9 elements....
    but doesnt the "read from spreadfile" block give me a 1-d array? and where does that 9 come from? i only have 3 rows and 2 columns in my data file....
    any guidance would be greatly appreciated.
    thx alot
    Happy guy
    ~ currently final year undergraduate in Electrical Engr. Graduating soon! Yes!
    ~ currently looking for jobs : any position related to engineering, labview, programming, tech support would be great.
    ~ humber learner of LabVIEW lvl: beginner-intermediate

    Helllo,
    I've made an example to try to help you  with that question.
    Notes:
     - the file must have values separeted by tab
     - reading the values from file as you mentioned using "read from spreadfile" you'll get a 2D array and not 1D;
    Software developer
    www.mcm-electronics.com
    PS: Don't forget to rate a good anwser ; )
    Currently using Labview 2011
    PORTUGAL
    Attachments:
    Read Table and plot polar graph.vi ‏26 KB
    teste.txt ‏1 KB

  • I would like to use a polar plot in the application now I am developing.

    Is there any kind of custom control or FP wich allows me to implement this kind of graph with CVI ?. (of course without doing Rec 2 Polar transformation and PlotXY).
    Thanks in advance,
    José M.

    There currently is not a custom control for doing polar style plots in CVI. There is only one for smith charts. You can use the standard 2D-graph to create polar plots with the help our analysis libraries, or if you need a more custom display, you could draw your own plots in a canvas control.
    Best Regards,
    Chris Matthews

  • Polar plot with legend points

    I can put one Polar Plot with legend in points?
    Case:
    I have magnitude and phase arrays for build polar plot and i want put rotation legend in each point of measurement. Then we have 3 arrays (magnitude, phase and rotation), but rotation need stay like legend for each point.
    Somebody already do it?
    thx for tip.
    Leonardo de S. Cavadas
    Maintenance Engineer and Inspection - Bureau Veritas do Brasil
    Engineer Metallurgist with emphasis in Advanced Materials
    Technologist in Computer Science

    Unclebump,
     i do one simple modification to be possible add rotation value to image, isn't better solution but i think that i'm near to solution way. Look these VIs, Re-link is necessary.
    Leonardo de S. Cavadas
    Maintenance Engineer and Inspection - Bureau Veritas do Brasil
    Engineer Metallurgist with emphasis in Advanced Materials
    Technologist in Computer Science
    Attachments:
    Plot Polar Data with Legend.vi ‏74 KB
    OtherPolarPlot.vi ‏67 KB
    Polar Plot with Legend.vi ‏75 KB

  • How to interpolate impedance measurements in a polar plot

    Hello,
    I do impedance measurements and plot them afterwards in a polar plot (see attached VI). Because of a sharp resonance it is hard to get a high resolution there.
    - Is it possible to do an interpolation between the the measured points?
    Thanks a lot.
    Best regards,
    Michael
    Solved!
    Go to Solution.
    Attachments:
    Interpolation.vi ‏47 KB

    Take a look at the attached.  I created an array to resample the data based on the data itself and then used the Resample (constant to variable) to generate interpolated data.  This  way the resonance is interpolated with more resolution than other locations.  Does this do what you want?
     There is a constant on the block diagram that controls how much more the resonance will be interpolated.
    Message Edited by rpursley8 on 03-22-2010 12:02 PM
    Randall Pursley
    Attachments:
    Interpolation-1.vi ‏76 KB

  • 3D Polar Plot

    I want to plot a 3D Polar Plot with Angle Axis as Angle, Radius Axis as Frequency and a third axis representing intensity at that point. For the snap shot of the image i have attached a .jpg file. Give me a perfect solution as soon as possible.
                            Thank You in advance
    Attachments:
    3D polar.JPG ‏22 KB

    Hi 3D Polar,
    well, you could use an intensity plot with embedded background graphics for the grid. Then you only have to plot the intensities after converting polar to rectangular coordinates.
    Asking for a "perfect solution" is like wanting all for nothing...
    Best regards,
    GerdW
    CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
    Kudos are welcome

  • Multiple polar plots into a 3d plot

    my test measures a light source, for each iteration (of the test) the detector moves up in elevation 5 deg (starts at 0 deg) and takes a data point every 2.5 degrees in azimuth (for a full 360 deg). My data array is a 3d array where on each page I have 3 columns azimuth, elevation (the elevation is constant for each iteration) and measured data. The question is: I cannot seem to plot it into a 3D graph...polar plot no problem...does any one have any insight?

    “Create color map.JPG” illustrates one way to create the map for the forth dimension.
    “Set Axis Range.JPG” how I manipulated the axis range and properties. Note: It appears all CW 3-d graph items start counting at “1” not “0”.
    “Add Cursors.JPG” shows the cursor work.
    I hope this helps,
    Ben
    Message Edited by Ben on 09-24-2005 03:48 PM
    Message Edited by Ben on 09-24-2005 03:49 PM
    Message Edited by Ben on 09-24-2005 03:49 PM
    Ben Rayner
    I am currently active on.. MainStream Preppers
    Rayner's Ridge is under construction
    Attachments:
    Create color map.JPG ‏37 KB
    Set Axis Range.JPG ‏71 KB
    Add Cursors.JPG ‏62 KB

  • Polar Plot Problem

    Hello!!!!
    I have created a Polar plot, but there is a line that shouldn't be there, what do I have to modify, so it shows exactly what I want??? I Have attached a picture of the graphs that I want, and my example VI, I hope someone can help me.
    Sorry, The arrays have to be filled out whit the next info:
    I: -1, 1,-1,1
    Q:1,-1,-1,1 THIS WAY IT does what I need.
    Saludos.!
    Mensaje editado por Special K
    Attachments:
    img030.jpg ‏305 KB
    graficar2.vi ‏43 KB

    Special K wrote:
    Im using LABVIEW 8.0 how can I create my own polar plot??
     You would need to use the picture functions to draw your graph, in the same way that the Picture Plot VI does. If you open up that VI you will see how it's done.
    Have you seen the images of what I want to obtain?? Is it possible to create those graphs??
    Yes. And yes. The "how" is a different matter. It's quite trivial to create an XY graph to draw your points, so that's why I suggested to use that. If you do not know how to draw an XY graph, open the Example Finder (Help -> Find Examples) and search for "graph". You will see lots of examples on graphs, including one for XY graphs. All you need to do is provide 4 points to the graph, and change the plot type to "scatter" so you just get the points instead of lines. Pretty simple. 

  • Really confused on making XY plots in Numbers

    I'm trying to make an XY plot in numbers from two columns of data.  I can't figure this out.  Here is an example.
    Day
    Sum
    1
    0
    8
    -11
    11
    -14
    16
    -18
    18
    -20
    23
    -25
    25
    -25
    30
    -25
    33
    -27
    34
    -27
    36
    -29
    Let's say I want to make a simple XY plot.  In this example "Day" is the X coordinate of the data and "Sum" is the Y coordinate.  Excel or if I did this on paper, the graph would look like this (scatter plot function)
    In numbers I get this
    or if I unselect "share X values" I get this
    Neither of these are right.  When I try to manually edit the X or Y data values they seem locked together.  I think I've played with every toggle available in numbers.
    My Numbers version is 3.5.2

    Hi ssls,
    There are two types of graphs (Charts) in Numbers 3 that require data to be in Body Cells.
    In the red "round rectangle" on the left is a Scatter Plot (I think you are looking for this) and on the right is a Bubble Chart (I don't think you are looking for this).
    All other graphs are Category graphs (charts) that require the X data to be in a Header in a table.
    Reproducing your data in a table with no Header Columns:
    Row 1 is a Header Row, and that is OK.
    Select Columns A and B and insert a Scatter Plot.
    To add the line, click on the graph and Format Panel > Series > Connection Lines > Straight
    Is that what you want?
    Regards,
    Ian.

  • How to draw polar plot?

    Hi all,
    I want to draw a polar plot in LV. I  am having different values of frequencies & voltage/current values at respective freuencies. Can anybody guide me?
    Vaibhav Gandhi
    B.E. Instrumentation & Control,
    INDIA

    Hi Vaibhav,
    LV already has a polar plot indicator and comes with an example of how to use it...
    Btw. usually you plot a signal vs. phase on a polar plot. How would you plot vs. a frequency?
    Best regards,
    GerdW
    CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
    Kudos are welcome

  • Polar plot from excel

    I have some data in the form of an excel table with two columns
    (frequency and amplitude). I wish to plot this as a polar plot in
    labview and then carry out convolution/correlation with another set of
    data. How do I achieve this seemingly herculean task?

    Look at this example file. Labview has a built-in polar chart.
    C:\Program Files\National Instruments\LabVIEW 7.0\examples\picture\demos.llb\Polar Plot Demo.vi

Maybe you are looking for

  • How to stop files from being locked in Mountain Lion?

    In the last week, I have found several of the files that I have generated or downloaded have become locked.  Since Apple has eliminated the Auto locking feature that use to be in Time Machine.  The files include PDFs, PHGs, TXTs, etc.  How do I stop

  • Adobe flash player for other browsers

    Hi all, I'm having trouble downloading ''Adobe Flash Player for Other Browsers'' I need it to watch video's with the steam browser. But when I download the installer and launch it nothing happends. So anyone know a way to fix it? Add me on skype: [re

  • Invoice to 3rd Party System

    Dear Experts, I am trying to send customer invoice to an external system via PI with IDoc type INVOIC02. I have done the basic setting for the output type ZRD0 to transfer the document via. EDI. I have created a partner profile for Logical System u20

  • BI Server - Solaris - Admin tool security configuration

    Hi, I have a BI server running on Solaris. I want to use the admin tool to configure users/groups which are configured in an LDAP database. Is this possible? Sifting through the forums, I can see that the admin tool is used to construct an offline rp

  • Why doesn't a normal sync add music to my iPod?

    I found my lost iPod which still had music on it that played just fine.  I synced it to my computer to add more music but instead the old stuff, except for two odd songs, disappeared and  no new music copied.  I've synced it a dozen times.  It always