My first attempt at NinjaScript. Trying to get a ray from the highest High of N bars. Compiles but nothing showing on the chart. Why?
Code:
#region Using declarations
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Data;
using NinjaTrader.Gui.Chart;
#endregion
// This namespace holds all indicators and is required. Do not change it.
namespace NinjaTrader.Indicator
{
/// <summary>
/// Hi of Bars
/// </summary>
[Description("Hi of Bars")]
public class HiRay : Indicator
{
#region Variables
// Wizard generated variables
private int periods = 10; // Default setting for Periods
// User defined variables (add any user defined variables below)
#endregion
/// <summary>
/// This method is used to configure the indicator and is called once before any bar data is loaded.
/// </summary>
protected override void Initialize()
{
CalculateOnBarClose = true;
Overlay = true;
PriceTypeSupported = false;
}
/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{
// Use this method for calculating your indicator values. Assign a value to each
DrawRay("MyHiRay", periods, MAX(High,periods)[0], 0, MAX(High,periods)[0], Color.Blue, DashStyle.DashDot, 2);
}
#region Properties
[Browsable(false)] // this line prevents the data series from being displayed in the indicator properties dialog, do not remove
[XmlIgnore()] // this line ensures that the indicator can be saved/recovered as part of a chart template, do not remove
public DataSeries Plot0
{
get { return Values[0]; }
}
[Description("")]
[Category("Parameters")]
public int Periods
{
get { return periods; }
set { periods = Math.Max(1, value); }
}
#endregion
}
}
#region NinjaScript generated code. Neither change nor remove.
// This namespace holds all indicators and is required. Do not change it.
namespace NinjaTrader.Indicator
{
public partial class Indicator : IndicatorBase
{
private HiRay[] cacheHiRay = null;
private static HiRay checkHiRay = new HiRay();
/// <summary>
/// Hi of Bars
/// </summary>
/// <returns></returns>
public HiRay HiRay(int periods)
{
return HiRay(Input, periods);
}
/// <summary>
/// Hi of Bars
/// </summary>
/// <returns></returns>
public HiRay HiRay(Data.IDataSeries input, int periods)
{
checkHiRay.Periods = periods;
periods = checkHiRay.Periods;
if (cacheHiRay != null)
for (int idx = 0; idx < cacheHiRay.Length; idx++)
if (cacheHiRay[idx].Periods == periods && cacheHiRay[idx].EqualsInput(input))
return cacheHiRay[idx];
HiRay indicator = new HiRay();
indicator.BarsRequired = BarsRequired;
indicator.CalculateOnBarClose = CalculateOnBarClose;
indicator.Input = input;
indicator.Periods = periods;
indicator.SetUp();
HiRay[] tmp = new HiRay[cacheHiRay == null ? 1 : cacheHiRay.Length + 1];
if (cacheHiRay != null)
cacheHiRay.CopyTo(tmp, 0);
tmp[tmp.Length - 1] = indicator;
cacheHiRay = tmp;
Indicators.Add(indicator);
return indicator;
}
}
}
// This namespace holds all market analyzer column definitions and is required. Do not change it.
namespace NinjaTrader.MarketAnalyzer
{
public partial class Column : ColumnBase
{
/// <summary>
/// Hi of Bars
/// </summary>
/// <returns></returns>
[Gui.Design.WizardCondition("Indicator")]
public Indicator.HiRay HiRay(int periods)
{
return _indicator.HiRay(Input, periods);
}
/// <summary>
/// Hi of Bars
/// </summary>
/// <returns></returns>
public Indicator.HiRay HiRay(Data.IDataSeries input, int periods)
{
return _indicator.HiRay(input, periods);
}
}
}
// This namespace holds all strategies and is required. Do not change it.
namespace NinjaTrader.Strategy
{
public partial class Strategy : StrategyBase
{
/// <summary>
/// Hi of Bars
/// </summary>
/// <returns></returns>
[Gui.Design.WizardCondition("Indicator")]
public Indicator.HiRay HiRay(int periods)
{
return _indicator.HiRay(Input, periods);
}
/// <summary>
/// Hi of Bars
/// </summary>
/// <returns></returns>
public Indicator.HiRay HiRay(Data.IDataSeries input, int periods)
{
if (InInitialize && input == null)
throw new ArgumentException("You only can access an indicator with the default input/bar series from within the 'Initialize()' method");
return _indicator.HiRay(input, periods);
}
}
}
#endregion
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