Steema Central

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

        private Steema.TeeChart.Tools.Annotation annotation1;
        private Steema.TeeChart.Styles.Ternary ternary1;

        private void InitializeChart()
        {
            ternary1 = new Steema.TeeChart.Styles.Ternary(tChart1.Chart);
            ternary1.FillSampleValues();

            annotation1 = new Steema.TeeChart.Tools.Annotation(tChart1.Chart);
            tChart1.MouseMove += new MouseEventHandler(tChart1_MouseMove);
            
        }

        void tChart1_MouseMove(object sender, MouseEventArgs e)
        {
            int index = ternary1.Clicked(e.X, e.Y);

            if (index != -1)
            {
                string tmp = ternary1.ValueMarkText(index);
                string[] tmpArray = tmp.Split(' ');

                tmp = " ";

                for (int i = 0; i < tmpArray.Length; i++)
                {
                    tmp += String.Format("{0:##0}", tmpArray[i]) + " ";
                }

                annotation1.Text = String.Format("Point: {0} Value: {1}", index.ToString(), tmp);   
            }

            double m = 5;
            this.Text = String.Format("{0:##0}", m.ToString());            
        }