Trend Line doesn't work

[LuckyChillda]

Hi, i am really novice. I wanted to developed indicator, that make trend line from first bar of seasson to end bar of seasson, but it is does not working and i do not know where is the issue. Any advice? Thank you.

namespace NinjaTrader.NinjaScript.Indicators.Lucky
{
public class SessionTrendLine : Indicator
{
private int startBar = -1;
private int endBar = -1;
private double closeBar = -1;

protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = @"Indikátor, který vytváří trendovou linii spojující první a poslední svíčku v seanci.";
Name = "SessionTrendLine";
Calculate = Calculate.OnBarClose;
IsOverlay = true;
AddPlot(Brushes.Transparent, "InvisiblePlot");
}
}

protected override void OnBarUpdate()
{
// Pokud není zvolena daily, weekly nebo monthly svíčka
if (BarsInProgress != 0)
return;

// Zjisti, zda se jedná o první svíčku v seanci
if (Bars.IsFirstBarOfSession)
{
startBar = CurrentBar;
}

// Zjisti, zda se jedná o poslední svíčku v seanci
if (Bars.IsLastBarOfSession)
{
endBar = CurrentBar;
closeBar= Close[0];

// Vytvoření trendové linie

if (startBar >= 0 && endBar >= 0)
{
Print(startBar);
Print(endBar);
Print(closeBar);
Draw.Line(this, "tag1" + CurrentBar, false, startBar, closeBar, endBar, closeBar, Brushes.LimeGreen, DashStyleHelper.Dot, 2);
}
}
}
}
}

[LuckyChillda]

I already made that.

[NinjaTrader_Gaby]

Hello LuckyChillda,

Thank you for your post.

Are you trying to draw 1 trend line? Or many lines?

To understand why the script is behaving as it is, such as placing orders or not placing orders or drawing objects when expected, it is necessary to add prints to the script that print the values used for the logic of the script to understand how the script is evaluating.

In the strategy add prints (outside of any conditions) that print the date time of the bar and all values compared in every condition.

The prints should include the time of the bar and should print all values from all variables and all hard coded values in all conditions that must evaluate as true for this action to be triggered. It is very important to include a text label for each value and for each comparison operator in the print to understand what is being compared in the condition sets.

The debugging print output should clearly show what the condition is, what time the conditions are being compared, all values being compared, and how they are being compared.

Prints will appear in the NinjaScript Output window (New > NinjaScript Output window).

I am happy to assist you with analyzing the output from the output window.

Run or backtest the script and when the output from the output window appears save this by right-clicking the output window and selecting Save As... -> give the output file a name and save -> then attach the output text file to your reply.

Below is a link to a support article that demonstrates using informative prints to understand behavior and includes a link to a video recorded using the Strategy Builder to add prints.

https://support.ninjatrader.com/s/ar...nd-TraceOrders