Is it possible to define an own pointer style for point seri

[fano]

Hi,

Is it possible to define an own pointer style for point series?

Currently some default enums are there with nice things in it.
I just wondered if I could make an own one which would be
useful for some applications. I was thinking of a pointer style
that represents a little test-tube or such.

Thanks,
fano

[Narcís]

Hi fano,

Yes, you can create a custom series style derived from standard point series type. The code below is an example of that using an image as the series pointer.

Code: Select all

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Steema.TeeChart;
using Steema.TeeChart.Drawing;
using Steema.TeeChart.Editors;


namespace ChartSamples
{
  public partial class Form1 : Form
  {
    public Form1()
    {
      InitializeComponent(); 
      ImagePoint imagePoint = new ImagePoint(tChart1.Chart);
      imagePoint.Image = pictureBox1.Image;
      imagePoint.FillSampleValues(100);
    }

    private void tChart1_Click(object sender, EventArgs e)
    {
      tChart1.ShowEditor();
    }
  }

  public class ImagePoint : Steema.TeeChart.Styles.Points
  {
    private Image image;

    public ImagePoint(Steema.TeeChart.Chart c)
      : base(c)
    {
    }

    public Image Image
    {
      get { return image; }
      set { image = value; }
    }

    public override string Description
    {
      get
      {
        return "ImagePoint";
      }
    }

    public override void DrawValue(int index)
    {
      Rectangle R;
      if (image == null) base.DrawValue(index);
      else
      {
        Pointer.HorizSize = image.Width;
        Pointer.VertSize = image.Height;
        int left = CalcXPos(index) - (Pointer.HorizSize / 2);
        int top = CalcYPos(index) - (Pointer.VertSize / 2);
        R = Rectangle.FromLTRB(left,
        top,
        left + Pointer.HorizSize,
        top + Pointer.VertSize);

        Graphics3D g = Chart.Graphics3D;
        g.Draw(R, image, true);
      }
    }
  }


}

[fano]

Hi,

many thanks for this hint. It works great!

fano