Hi,

I need to insert extra graphical objects on my graph. To make it look nice I need to know the coordinate of the bottom left corner. Could you please tell me how can I retrieve that data? Is it possible to know size of the graph?
My graph is set to Dock: Fill so it re-sizes, that is why I need to know the proper size/coordinates of the graph.

Please find attached a picture explaining the situation.

Thank you for your help in advanced
Daniel

Hi Daniel,

You can use the chart's PlotArea property, but please note that it is valid only after the chart is calculated - for example in the paint callback notification methods. The following code draws a red circle on top of the Bottom-Left corner of the chart:

   public partial class Form1 : Form, INPaintCallback
   {
      public Form1()
      {
         InitializeComponent();
      }

      private void Form1_Load(object sender, EventArgs e)
      {
         NChart chart = nChartControl1.Charts[0];
         NBarSeries bar = new NBarSeries();
         chart.Series.Add(bar);
         bar.Values.AddRange(new double[]{ 10, 20, 15 });

         chart.PaintCallback = this;
      }

      public void OnAfterPaint(NPanel panel, NPanelPaintEventArgs eventArgs)
      {
         NPointF p = nChartControl1.Charts[0].PlotArea.LeftBottom;
         eventArgs.Graphics.PaintEllipse(new NColorFillStyle(Color.Red), null, new NRectangleF(p.X - 6, p.Y - 6, 12, 12));
      }
      public void OnBeforePaint(NPanel panel, NPanelPaintEventArgs eventArgs)
      {         
      }
   }

Best Regards,
Nevron Support Team