How to draw line with plot and give it a value?

[aekzof]

Dear support
I created a simple indicator it is a simple line that starts 10 bars ago and is at the height of this one


but I would like to use plot to create this indicator


1. Is there a way to stretch the line to the future without using time?


in this example

2. how to draw this line with plot?
3. what is the value of this plot because i want to use it in the strategies builder?

Many thanks.


if (State == State.SetDefaults)
{
Description = @"Enter the description for your new custom Indicator here.";
Name = "MyCustomIndicator";


BarsAgo = 10;

AddPlot(new Stroke(Brushes.Orange, 2), PlotStyle.Dot, "MyLine");
}



else if (State == State.Configure)
{
}
}

protected override void OnBarUpdate()
{


if (CurrentBar < 60)
return;


Draw.Line(this, "MyLine" , true, BarsAgo, High[BarsAgo] , 0, High[BarsAgo] , Brushes.Red, DashStyleHelper.Dot, 4);

}

#region Properties
[NinjaScriptProperty]
[Display(Name="BarsAgo", Order=1, GroupName="Parameters")]
public int BarsAgo
{ get; set; }

[Browsable(false)]
[XmlIgnore]
public Series<double> MyLine
{
get { return Values[0]; }
}
#endregion

[NinjaTrader_BrandonH]

Hello aekzof,

Thanks for your post.

Instead of a Line drawing object, you could consider using a Ray drawing object to "project" the line into the future.

For example, you could set the start point BarsAgo value to 1 and the end point BarsAgo value to 0 when calling Draw.Ray().

See this help guide for more information about working with Draw.Ray: https://ninjatrader.com/support/help...8/draw_ray.htm

"what is the value of this plot because i want to use it in the strategies builder?"

Currently, in the code you shared the plot does not contain a value since you have not assigned a value to the plot. You would first need to assign a value to the plot using Value. For example, Value[0] = Close[0]; would set the plot value to be the current Close price.

See this help guide for more information about working with plots: https://ninjatrader.com/support/help...t8/addplot.htm

Let us know if we may assist further.

[aekzof]

Thank you for your reply
Precisely that's what I can't understand the value of the plot.

the goal of this line is when price breaks this line from above and below

Value[0] = signal1
signal1 = condition (when price breaks the line)

I don't know if that's right

[NinjaTrader_BrandonH]

Hello aekzof,

Thanks for your note.

You would need to assign a value to the plot for the plot to contain a value. Note that you can only assign values such as int values and double values to a plot. You cannot add a condition to a plot.

For example, if you have a double variable called "signal1" and that variable holds a value of say Close[0], you would then apply that variable to the plot. See below.

private double signal1; //class level variable.

protected override void OnBarUpdate()
{
    //assign a value to the signal1 variable
    signal1 = Close[0];

    //assign the signal1 variable to the plot
    Value[0] = signal1;
}

Please see the sample code in the AddPlot() help guide page to see how a value could be assigned to the plot using Value[].

AddPlot: https://ninjatrader.com/support/help...t8/addplot.htm
Value: https://ninjatrader.com/support/help...nt8/value.htm\

You could also work through the Developing Indicators tutorials to better understand how to create indicators.

Developing Indicators: https://ninjatrader.com/support/help...indicators.htm

Let us know if we may assist further.

[aekzof]

Thank you .