CODEWITHSUNDEEP
c#zedgraph
user2950764
user2950764

Reputation: 221

Graph with ZedGraph using other class than Form

I'm trying to make a program that will read some values, analyze them and plot the result. I can't get the plot thing to work though, which probably is due to faulty parameters being sent in to my plot class.

This is what I have in my Form class:

    private void FileButton_Click(object sender, EventArgs e)
    {
        OpenFileDialog ReadFileDialog = new OpenFileDialog();

        if (ReadFileDialog.ShowDialog() == DialogResult.OK)
        {
            ReadFile Acceleration = new ReadFile();

            if (PlotResultCheckbox.Checked)
            {
                PlotClass PlotResult = new PlotClass(); 
                //The FormClass being the class I'll call to plot from various part of my program

                PlotResult.FFTPlot();
            }

        }
     }


    private void FFTPlotWindow_Load(object sender, EventArgs e)
    {
          //Don't really know what to put here but this is my Plot-window anyway
    }

What parameters, besides the obvious ones with the data I shall plot, should I pass to my Plot class? Should I make FFTPlotWindow public?

Thanks in advance Axel

Upvotes: 1

Views: 752

Answers (1)

Larry
Larry

Reputation: 18051

To achieve what you are trying to do, I can suggest two approaches.

  • Make the PlotClass interact with ZedGraph:

In this case, the PlotClass should be aware about it .

You can specify a reference to your ZedGraph control in the FFTPlot method that is supposed to plot the graph.

public class PlotClass
{
    ...

    public void FFTPlot(ZedGraphControl zgc)
    {   
        // Build the point list and attach it to a new curve

        GraphPane myPane = zgc.GraphPane;
        var list = new PointPairList();

        // Your code to add the points
        // ...

        var myCurve = myPane.AddCurve("My Curve", list, Color.Blue, SymbolType.None);
        zgc.AxisChange();
        zgc.Invalidate();
    }
}

Then :

if (PlotResultCheckbox.Checked)
{
    PlotClass PlotResult = new PlotClass(); 
    PlotResult.FFTPlot(zedGraphControl1);
}
  • The other approach (I would recommend) is to let your Form responsible to handle the ZedGraph control, using data exposed by the PlotClass. By this way, the PlotClass will remain independant from any graphic concerns.

So :

if (PlotResultCheckbox.Checked)
{
    PlotClass PlotResult = new PlotClass(); 

    GraphPane myPane = zedGraphControl1.GraphPane;
    var list = new PointPairList();

    // Your code to add the points using a property exposed by PlotResult
    // ...

    var myCurve = myPane.AddCurve("My Curve", list, Color.Blue, SymbolType.None);
    zedGraphControl1.AxisChange();
    zedGraphControl1.Invalidate();
}

Regardless the approach you decide, the ZedGraph wiki will be very helpful.

Upvotes: 1

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