Create and Display a Graph

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  • Create and Display a Graph

    Hi,

    I am trying to display a graph on the right hand side of the screen. I have tried using GRAPH_CreateEx but I am basically getting a plain black box with some values on the side. I could really do with a good detailed example code that could help me understand how to configure it. Can someone please help me.

  • Hi,

    You have to create a data item and attach it to the graph. To update the graph simply add values to the item.

    Attached is an example which shows a simple graph with two data items (sine, cosine).

    Regards,
    Sven
    Files

    • SimpleGraph.zip

      (1.45 kB, downloaded 851 times, last: )
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  • thanks for the example,
    Now do you have to use the messages/setting callback method.
    Can't you just set the graph in your main function and then add the values in the while loop or do you need the wm message/callbacks method to redraw the graph background.

  • Also I have tried implementing your example in my main function. But there no scales in the example. I have tried
    the following to add a scale and it adds values on the right and the bottom with no relation to the graph. Also I want an X and Y axis like the example pictures. How do I make it do this ?

    hScale = GRAPH_SCALE_Create(28, GUI_TA_RIGHT, GRAPH_SCALE_CF_VERTICAL, 10);
    GRAPH_AttachScale(hGraph, hScale);
    hScale = GRAPH_SCALE_Create(380, GUI_TA_BOTTOM, GRAPH_SCALE_CF_HORIZONTAL, 10);
    GRAPH_AttachScale(hGraph, hScale);