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karthik

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Posts posted by karthik

  1. custom controls

    in User Interface

    Posted

    Hello,

    I have inserted a image into buttons to have a professional look to GUI. Please find the attached custom control attached.

    Problem:

    Image masked, a part of Button or in other words I was not able to generate Value change Event When I clicked on image (button). Is there any way to generate Value change Event by using images? Thanks in advance.

    Regards,

    Karthik SP

  2. Typedef Combo or Ring Ctls Constants do Not Update Values

    in LabVIEW General

    Posted

    QUOTE(alukindo @ Oct 1 2007, 07:17 AM)

    Hi Aristos:

    Can you shine some light on search terms or a link related to this question. I have been unable to get info from LabVIEW online help. E.g: LabVIEW notes on the ring control should probably have a note on this behavior but nothing there.

    Thanks

    Anthony

    Hello Anthony,

    As Aristos said,there was lot of disscussion already done on this issue...I myself observed this behaviour in one of my project and thought that it is a Bug ...But later I found that Menu Rings are just fancy numerics unlike ENUM's.The Ring's text is NOT part of the data type.Hence they do not update with change in Values (as of Enums).

    Regards,

    Karthik SP

  3. port comm

    in Hardware

    Posted

    Hello,

    You can use String to Byte array to accomplish this task...

    Regrads,

    Karthik

    QUOTE(EJSpin @ Sep 28 2007, 05:45 AM)

    I'm not really sure where this post belongs, so forgive me if it's in the wrong place.

    I'm creating an interface where I need to collect data from my microcontroller through serial port. This data needs to be read by 1 word(2 bytes) at a time.

    I need to know how to convert from a string to a word and view this data on a graph.

    I hope this makes sense to someone.

    Thanks

    ~EJSpin

  4. RPM Meter

    in User Interface

    Posted

    QUOTE(Ben @ Sep 18 2007, 11:49 PM)

    Adding to above...

    THe color ramp values and colors can be changed on the fly.

    So do the customizing as outlined.

    Hide the needle

    Code up the ramp color changes

    You are there!

    Ben

    Hello Ben,

    Thanks for your reply.Can you please mention how to change the colours of the meter grid programatically based on input value?

    Karthik SP

  5. RPM Meter

    in User Interface

    Posted

    Hello,

    Can anybody please tell me how to customize a meter to get a RPM meter which I have attached with this post.It is a simple control which we generally see in cars or bikes to display RPM value.It starts from 0 to 30 and changes its colour depending on which slot it belongs.For example 0 to 5 it has to display green and from 20 to 30 it has to display red.Thanks in advance.

    Regards,

    Karthik

    LabVIEW 8.2.1

  6. Agilent VEE Pro 7.5 and LabVIEW 8.0

    in LabVIEW General

    Posted

    Hello Friends,

    Since one of my customer has License for both Agilent VEE Pro 7.5 and LabVIEW 8.0,I have been asked to make a document which List out advantages and disadvantages of this graphical languages. I know it is a worst thing to do on earth but I don't have any choice (Do or Die).I have captured some points but I just want to post this question with a hope that there is someone at other end who can help me. Please forgive me if you think I have asked irrelevant question.

    Regards,

    Karthik SP

  7. Defect Density

    in LabVIEW General

    Posted

    Hello LAVA's,

    In text based programming languages, Defect Density is generally measured as number of Major Defects found in thousand lines of code(i.e.Defect Density (at any stage) <= 1 Major/KLOC ).Is there a yard stick to measure Defect Density in LabVIEW?Can anybody please through some light on this standards? Karthik SP

    Note : I have also poste same question in NI Discussion Forum and by mistake I have posted it in Hardware insted of LabVIEW General in LAVA forum.I am sorry for the same.

  8. Defect Density

    in LabVIEW General

    Posted

    Hello Lava's,

    In text based programming languages, Defect Density is generally measured as number of Major Defects found in thousand lines of code(i.e.Defect Density (at any stage) <= 1 Major/KLOC ).Is there a yard stick to measure Defect Density in LabVIEW?Can anybody please through some light on this standards? Karthik SP

  10. average from Daq

    in Hardware

    Posted

    Hello Nulll,

    There is nothing strange when shift register gives you last value...

    Instead of using shift register,Try to bring all values outside of loop(Array) and caluculate the average...

    Do not forget to enable indexing in a loop :)

    I think ami is correct...Repond to the mail properly...

  12. draw sinwave

    in Hardware

    Posted

    You can do that alnaimi...

    I suggest you to keep your DAQ pin diagram infront of you while connecting...

    Configure your DAQ channel according to your requirement...

    All the best

    Regards,

    Karthik

  17. serial read

    in Hardware

    Posted

    Hello takimidante,

    They are very good examples in LabVIEW examples.Such as...

    The Advanced Serial Read and Write example performs a Serial Port Read, a Serial Port Write, or a combination of these actions while setting some advanced serial features like buffer size, termination characters, and XON/XOFF flow control. The user selects the actions (read or write) on the front panel. If both are selected, the VI will write the data first, read the data and then close the VISA session that is opened to the port.

    The Basic Serial Write and Read (2Port) example opens 2 VISA resources and configures one COM port to perform a write operation and the other COM port to perform a read operation. This VI will wait until the specified number of bytes (bytes to read) is received at the port. Only the number of bytes specified will be read.

    I suggest you to go through it to get a basic idea.

    How to build a waveform???

    Using a Waveform Graph and a Bundle with three elements, you can create a graph with an offset and a set distance between points. All you will need is an array representing the Y values. On the bundle the first value is the offset, i.e. where to start; the second value is the "dx", i.e. the horizontal space between the points; and third your array.

    All the best.

    Regards,

    Karthik SP

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