Multi-Phasors using polar plot

Hello everybody
I used LabView 7.1 and I need plot three phasor, at the moment I use Polar Plot, but I don't know how to plot some phasors, any idea?
Another problem is how to I would chance the line width and form.
Thanks
Danilo

Hello erick.yamamoto
I managed plot three phasors, but I don't know how to chance the colors, form, and with of this phasors.
Danilo
Attachments:
VISincrofasor.png ‏27 KB

Similar Messages

  • 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

  • Polar plot line color

    Hello
    I have three vector plotting using polar plot.vi the problem is when I tread to shift the line color, only use black, I need three diferents colors any suggestion?. I put a picture with my block diagram.
    I would like too chance the line width how to I can realice this using mi VI?
    thanks
    Danilo

    Abel_Souza wrote:
    Hi Danilo,
    I think you can use color box contants in a case structure, each case sent one color constat, so you can select colors when you select a case on case structure.
    Regards,
    Well that is part of the story but the picture input tunnel should be changed to a SR if you wnat more than one plot.
    Ben
    Ben Rayner
    I am currently active on.. MainStream Preppers
    Rayner's Ridge is under construction

  • 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

  • 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

  • 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

  • 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. 

  • 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 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 to add cursors on polar plot

    I want to add cursors on polar plot just like the XY graph has. I am new to LabVIEW and want to be able to move those cursors by mouse movements and get the respective Angle and Magnetude values. Since the polar plot is a picture I am unable to do the same. So my questions is;
    Can I add cursors on Polar plot? If not, then, is there any other way to do so?

    Hi!
    I've found an old post about you issue: http://forums.ni.com/t5/LabVIEW/the-best-way-to-make-a-nice-POLAR-plot-in-LV/td-p/115478 (but no easy solution is provided ).
    You can use an XY plot, of course, but it's up to you to convert your polar plot to the cartesian coordinate system of the XY plot and the way back for the cursor coordinates.

  • Polar plot of a data matrix....help is needed

    Hello,
    I'm working on an Ultrasound project, the data coming from the device is transmitted through a USB driver to the PC. I made a VI, that open a connection with the USB device and recieve the data. The coming data are recognized by the LabVIEW as stream of strings, so, i converted the data into a bytes using "string to byte array" function, then I used the function "reshape array" to reshape the data bytes into a 512x64 matrix which represents the no. of samples per ultrasound line times the no. of ultrasound lines.
    I plotted the data on an intensity graph function and it worked, but the problem is that the data or the matrix must be plotted as a polar plot, not as a cartesian plot.
    The problem is that I want to convert each single pixel (byte) of the (512x64) matrix from having (x,y) coordinate into a pixel that has (r, angle) coordinate.
    can you help me plot these data in a polar plot. If any body has any suggestions please help.
    best regards,
    Underzero.
    Attachments:
    US_VI1.PNG ‏17 KB

    Multiple posts: keep discussion to this thread: http://forums.ni.com/ni/board/message?board.id=170&thread.id=337220

  • How do you get the polar plot VI's to work correctly?

    I have the data in a file and can see the correct data when placed on a smith chart, but not on the polar plot. It looks like it is mirrored on the Polar plot.

    There are a couple of examples hat come with LabVIEW that might help you. They can be found under Help >> Examples >> Advanced >> Picture Control >> "Polar Plot" and "Simple Smith Plot". As a way of comparing the two different plots, I had them plot the same data points. It looks like if you have a lot of data points with a lot variability then you want to use the Polar Plot. The following webpage may provide some infor regarding smith plots:
    http://zone.ni.com/devzone/nidzgloss.nsf/webmain/8​0EC3CE5F229DB818625686A0078B8D9?OpenDocument
    Chris_Mitchell
    Product Development Engineer
    Certified LabVIEW Architect

  • How to clear polar plot Programmatically

    How to clear polar plot Programmatically, thanks!

    This doesn't technically clear the plot, it's writing an array of zeroes to it. But if all you want is to make the plot appear to dissapear that's ok.
    I've taken a closer look and found that you have to use the Erase First property node to set which pictures can be erased. The default is never erase any, which is why the plot doesn't clear.
    Then, you can get an empty picture constant from the pictures sub-pallet and wire that into the Value (Signalling) property node and it will work.
    I have attached one VI with and one without the event structure to tidy things up, but you may not have the event structure available to you. I wrote these in LV2012.
    Attachments:
    PolarPlotV1.vi ‏16 KB
    PolarPlotV2.vi ‏22 KB

Maybe you are looking for