Thread: get the data and plot the graph

  1. #1
    Registered User
    Join Date
    Oct 2003

    get the data and plot the graph

    Dear All,
    i have data received from parallel port and how to plot them on the computer screen using visual c++? can anyone show me the simple program code? i have no such experience before. Thank u.

  2. #2
    and the hat of int overfl Salem's Avatar
    Join Date
    Aug 2001
    The edge of the known universe
    Create 2 separate programs.

    1. Create a program to read data from parallel port and fprintf() it to a file. Check that the text file which is produced contains the data you expect.

    2. Create a program to plot a graph from a fixed set of XY coordinates stored within the program
    int coords[] = { 0,0, 100,100, 200,200, 300,500 };
    When both programs work individually, think about joining them together.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  3. #3
    Registered User
    Join Date
    Oct 2003
    Thanks for your quickly response,Salem.
    I have a program which can read the data from parallel port, but i expected not to save the data into a file, and plot the data on pc screen in real time. what library function i need to call?
    Last edited by lwong; 01-01-2004 at 08:13 AM.

  4. #4

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