Plotting My Own Lines

[cbart_1]

This is what i have so far:

protectedoverridevoid Initialize()
{
Add(new Line(Color.DarkCyan, PP, "MyPivot"));Add(new Line(Color.DarkCyan, R1, "MyR1"));Add(new Line(Color.DarkCyan, R2, "MyR2"));Add(new Line(Color.DarkCyan, R3, "MyR3"));
Add(new Line(Color.DarkCyan, S1, "MyS1"));Add(new Line(Color.DarkCyan, S2, "MyS2"));
Add(new Line(Color.DarkCyan, S3, "MyS3"));
}

protectedoverridevoid OnBarUpdate()
{
PreHigh = PriorDayOHLC().PriorHigh[0];
PreLow = PriorDayOHLC().PriorLow[0];
PreClose = PriorDayOHLC().PriorClose[0];

PP = (PreHigh + PreLow + PreClose) / 3;
R1 = 2 * PP - PreLow;
R2 = PP + (PreHigh - PreLow);
R3 = R1 + (PreHigh - PreLow);
S1 = 2 * PP - PreHigh;
S2 = PP - (PreHigh - PreLow);
S3 = S1 - (PreHigh - PreLow);
}

What i want is to plot the pivots at the values they equal. I would also like to add text on each line to label which one they are.

[NinjaTrader_Austin]

Hi Coby, it isn't recommend to Add lines in the initialize section. Would DrawLine work for you?

// Draws a dotted lime green line from 10 bars back to the current bar  
// with a width of 2 pixels  
DrawLine("PP", false, 10, PP, 0, PP, Color.LimeGreen, DashStyle.Solid, 1);

[cbart_1]

how to draw text to label each line

Ok I got the pivot lines to show up. Now how do i draw text on each line to label which one is which on the left side of the chart.

This is what i have:
DrawText("Pivot", TF,"Pivot", 75, PP, 3, Color.Black, Font., StringAlignment.Center, Color.Black, Color.WhiteSmoke, 1);

I cannot get it to work. what do I put for the font.

[NinjaTrader_Austin]

Hi Coby, I recently wrote a tip that deals with how to change the font when using DrawText. The tip is located here. Basically, you can do this:

// in variables
private Font    largeFont = new Font("Arial", 12);        // This  variable holds the large font.

// in OnBarUpdate (or anywhere else)
DrawText("PP", true, "text that displays on the chart", 1, PP,  Color.Black, largeFont, StringAlignment.Near, Color.Transparent,  Color.Transparent, 0);

[cbart_1]

My lines went away

That made my lines go away and no text is diplayed on the chart.

[NinjaTrader_Austin]

Are there any errors in the logs (right-most tab in Control Center)?

[cbart_1]

Yes

The startBarsAgo is out of valid range. I have it at 50. If I set it to 0 it will work but it puts the text to right side of the chart.

[NinjaTrader_Austin]

That means the line is trying to be drawn where no bars exist. For example, at the 1st bar it tries to draw a line 50 bars back (-49th bar) which doesn't exist. A simple fix:

protected override void OnBarUpdate()
{
// very important this item is first in OnBarUpdate()

if (CurrentBar < 50)
    return;
}

[cbart_1]

Ok That worked

Thank You!