custom painting on a chart

[ido]

hi,
i have a rounded graphics object (bitmap) that i want to paint on a line value. is there a tutorial on custom paining on a line\chart?

[Narcís]

Hi idan,

Yes, please have a look at Tutorial 13 - Custom drawing on the Chart Panel available at TeeChart's program group.

[ido]

I need to paint a bitmap object and on a specific point on a line which the tutorial doesn't reffer to. is there a way to do so?

[Narcís]

Hi idan,

In that case you could try using something like this:

Code: Select all

		void tChart1_AfterDraw(object sender, Steema.TeeChart.Drawing.Graphics3D g)
		{
			g.Draw(xPos, yPos, myImage);
		}

[ido]

what if the values are double and not int?

[Narcís]

Hi idan,

You should convert them to screen postion coordinates (int) using given methods, for example:

Code: Select all

			int xPos = tChart1.Axes.Left.CalcPosValue(1500);

or

Code: Select all

			int xPos = tChart1.Series[0].CalcXPos(5);