I still keep getting this error with this indicator. I'm freezing all the brushes. I've narrowed the error to the Draw.Text call. Any ideas?
Code:
#region Using declarations
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Gui;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Gui.SuperDom;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Core.FloatingPoint;
using NinjaTrader.NinjaScript.DrawingTools;
#endregion
//This namespace holds Indicators in this folder and is required. Do not change it.
namespace NinjaTrader.NinjaScript.Indicators
{
public class VwapProfile : Indicator
{
private const int number = 5;
private double iCumVolume = 0;
private double iCumTypicalVolume = 0;
private List<double> vwaps;
protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = @"";
Name = "VWAP Profile";
Calculate = Calculate.OnBarClose;
IsAutoScale = false;
IsOverlay = true;
DisplayInDataBox = true;
DrawOnPricePanel = true;
DrawHorizontalGridLines = true;
DrawVerticalGridLines = true;
PaintPriceMarkers = false;
ScaleJustification = NinjaTrader.Gui.Chart.ScaleJustification.Right;
//Disable this property if your indicator requires custom values that cumulate with each new market data event.
//See Help Guide for additional information.
IsSuspendedWhileInactive = true;
// SET DEFAULT VALUES
Opacity = 0.35f;
// ADD PLOTS
AddPlot(new Pen( Brushes.Cyan, 1), PlotStyle.Dot, "V0");
AddPlot(new Pen( Brushes.LightGreen, 1), PlotStyle.Dot, "V1");
AddPlot(new Pen( Brushes.Magenta, 1), PlotStyle.Dot, "V2");
AddPlot(new Pen( Brushes.Red, 1), PlotStyle.Dot, "V3");
AddPlot(new Pen( Brushes.Orange, 1), PlotStyle.Dot, "V4");
}
else if (State == State.Configure)
{
vwaps = new List<double>();
vwaps.Insert(0, 0d);
for(int i = 0; i < number; i++)
{
Brush tmp = Plots[i].Brush.Clone();
tmp.Opacity = Opacity;
tmp.Freeze();
Plots[i].Brush = tmp;
}
}
}
protected override void OnBarUpdate()
{
if(Bars.IsFirstBarOfSession)
{
// RESET CURRENT
iCumVolume = VOL()[0];
iCumTypicalVolume = VOL()[0] * Typical[0];
// ADD CURRENT
vwaps.Insert(0, iCumTypicalVolume/iCumVolume);
// REMOVE EXTRA VWAPS
if(vwaps.Count > number) vwaps.RemoveAt(vwaps.Count - 1);
}
else
{
iCumVolume = iCumVolume + VOL()[0];
iCumTypicalVolume = iCumTypicalVolume + (VOL()[0] * Typical[0]);
// UPDATE CURRENT
vwaps[0] = iCumTypicalVolume/iCumVolume;
}
if(vwaps.Count > 4)
{
V0[0] = vwaps[0];
V1[0] = vwaps[1];
V2[0] = vwaps[2];
V3[0] = vwaps[3];
V4[0] = vwaps[4];
for(int i = 0; i < number; i++)
{
string tag = string.Format("V{0}", i.ToString("N0"));
bool isAutoScale = false;
string text = string.Format( "V{0} {1}", i.ToString("N0"), vwaps[0].ToString("F"));
int barsAgo = 0;
double y = vwaps[i];
int pixelOffset = 12;
Brush textBrush = Brushes.White;
textBrush.Freeze();
NinjaTrader.Gui.Tools.SimpleFont font = new NinjaTrader.Gui.Tools.SimpleFont("Arial", 10);
Brush outlineBrush = Brushes.White;
outlineBrush.Freeze();
Brush areaBrush = Plots[i].Brush.Clone();
areaBrush.Freeze();
int areaOpacity = Convert.ToInt32( Opacity * 100 );
try
{
Text T = Draw.Text(this, tag, isAutoScale, text, barsAgo, y, pixelOffset, textBrush, font, TextAlignment.Justify, outlineBrush, areaBrush, areaOpacity);
}
catch(System.Exception e)
{
System.Windows.MessageBox.Show(e.Message);
}
}
}
}
#region Properties
[Range(0, 1)]
[NinjaScriptProperty]
[Display(Name = "Opacity", GroupName = "Parameters", Order = 0)]
public float Opacity
{
get; set;
}
[Browsable(false)]
[XmlIgnore]
public Series<double> V0
{
get { return Values[0]; }
}
[Browsable(false)]
[XmlIgnore]
public Series<double> V1
{
get { return Values[1]; }
}
[Browsable(false)]
[XmlIgnore]
public Series<double> V2
{
get { return Values[2]; }
}
[Browsable(false)]
[XmlIgnore]
public Series<double> V3
{
get { return Values[3]; }
}
[Browsable(false)]
[XmlIgnore]
public Series<double> V4
{
get { return Values[4]; }
}
#endregion
}
}
#region NinjaScript generated code. Neither change nor remove.
namespace NinjaTrader.NinjaScript.Indicators
{
public partial class Indicator : NinjaTrader.Gui.NinjaScript.IndicatorRenderBase
{
private VwapProfile[] cacheVwapProfile;
public VwapProfile VwapProfile(float opacity)
{
return VwapProfile(Input, opacity);
}
public VwapProfile VwapProfile(ISeries<double> input, float opacity)
{
if (cacheVwapProfile != null)
for (int idx = 0; idx < cacheVwapProfile.Length; idx++)
if (cacheVwapProfile[idx] != null && cacheVwapProfile[idx].Opacity == opacity && cacheVwapProfile[idx].EqualsInput(input))
return cacheVwapProfile[idx];
return CacheIndicator<VwapProfile>(new VwapProfile(){ Opacity = opacity }, input, ref cacheVwapProfile);
}
}
}
namespace NinjaTrader.NinjaScript.MarketAnalyzerColumns
{
public partial class MarketAnalyzerColumn : MarketAnalyzerColumnBase
{
public Indicators.VwapProfile VwapProfile(float opacity)
{
return indicator.VwapProfile(Input, opacity);
}
public Indicators.VwapProfile VwapProfile(ISeries<double> input , float opacity)
{
return indicator.VwapProfile(input, opacity);
}
}
}
namespace NinjaTrader.NinjaScript.Strategies
{
public partial class Strategy : NinjaTrader.Gui.NinjaScript.StrategyRenderBase
{
public Indicators.VwapProfile VwapProfile(float opacity)
{
return indicator.VwapProfile(Input, opacity);
}
public Indicators.VwapProfile VwapProfile(ISeries<double> input , float opacity)
{
return indicator.VwapProfile(input, opacity);
}
}
}
#endregion
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