Series values multiplier

[Luigi S.]

Hi All,
I am using TeeChart for .NET (ver. 3.5.3146.24805).

I remember that in an older version of TeeChart (I worked with it it under Borland C++ Builder 5.0 some yeas ago) in the ValueList class there was a double property called "Multiplier" that was a multiplication factor for all the values inside the ValueList object, but I can't find it in the .NET version of TeeChart ....

Is something similar still available ?

Thanks.

[Narcís]

Hi Luigi,

Do you mean the multiply function? There's an example of this at All Features\Welcome !\Functions\Standard\Multiply in the features demo. For more information about TeeChart functions please read Tutorial 7 - Working with Functions. Tutorials and demo can be found at TeeChart's program group.

[Narcís]

Hi Luigi,

As an update, I see this property is obsolete now in the VCL version and it doesn't exist in .NET. Anyway I think multiply function could help or you could also use something like this:

Code: Select all

			for (int i = 0; i < tChart1[0].Count; i++)
			{
				tChart1[0].YValues[i] *= 5;
			}

[Luigi S.]

Hi Luigi,

Anyway I think multiply function could help

Hi Narcís ,
If I understood correctly the multiply function allows to multiply two series A and B and show the resulting function C...

In my case I should multiply all values of A for a constant value, keeping the original values inside the A series: is it possible to do this avoiding to add a point with value K (the multiply factor) into B for each point inside A, but simply one point of value K ?

Thanks.

[Narcís]

Hi Luigi,

In that case you can use series marks and GetSeriesMark and GetAxisLabel event like this:

Code: Select all

    public Form1()
    {
      InitializeComponent();
      InitializeChart();
    }

    private double multiplyFactor = 5;
    
    private void InitializeChart()
    {
      Steema.TeeChart.Styles.Bar bar1 = new Steema.TeeChart.Styles.Bar(tChart1.Chart);

      bar1.FillSampleValues();
      bar1.Marks.Visible = true;
      bar1.Marks.Style = Steema.TeeChart.Styles.MarksStyles.Value;

      bar1.GetSeriesMark += new Steema.TeeChart.Styles.Series.GetSeriesMarkEventHandler(bar1_GetSeriesMark);
      tChart1.GetAxisLabel += new Steema.TeeChart.GetAxisLabelEventHandler(tChart1_GetAxisLabel);
    }

    void tChart1_GetAxisLabel(object sender, Steema.TeeChart.GetAxisLabelEventArgs e)
    {
      if (sender == tChart1.Axes.Left)
      {
        double tmp = Convert.ToDouble(e.LabelText) * multiplyFactor;
        e.LabelText = tmp.ToString();
      }
    }

    void bar1_GetSeriesMark(Steema.TeeChart.Styles.Series series, Steema.TeeChart.Styles.GetSeriesMarkEventArgs e)
    {
      double tmp = Convert.ToDouble(e.MarkText);
      e.MarkText = Convert.ToString(tmp * multiplyFactor);
    }