keltner channel with additional properties

[barriosmex]

I'm programming some additional properties on a keltner channel, which I'd like to see. I have managed to place in the lower right corner a box with the value of the width of the channel. the outermost channel has an offset of 3.5 and the inner one an offset of 1.75. I have tried to make the internal channel only show according to a condition, but from what I have read it is not possible to condition an AddPlot.

using crossabove and crossbelow within if and else statements, when the price reaches a certain level of the external channel, is it possible?

what I have achieved so far:

protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = NinjaTrader.Custom.Resource.NinjaScriptIndicatorDe scriptionKeltnerChannel;
Name = "KeltnerChannelEMAwColorAndHalfline";
Period = 52;
IsOverlay = true;
IsSuspendedWhileInactive = true;
OffsetMultiplier = 3.5;
RegionBrush = Brushes.WhiteSmoke;
Opacity = 20;

AddPlot(Brushes.White, NinjaTrader.Custom.Resource.KeltnerChannelMidline) ;
AddPlot(Brushes.White, NinjaTrader.Custom.Resource.NinjaScriptIndicatorUp per);
AddPlot(Brushes.White, NinjaTrader.Custom.Resource.NinjaScriptIndicatorLo wer);
AddPlot(new Stroke(Brushes.Black, DashStyleHelper.Dash, 1, 70), PlotStyle.Hash, "UpperHalfline");
AddPlot(new Stroke(Brushes.Black, DashStyleHelper.Dash, 1, 70), PlotStyle.Hash, "LowerHalfline");
}
else if (State == State.DataLoaded)
{
diff = new Series<double>(this);
EMADiff = EMA(diff, Period);
EMATypical = EMA(Typical, Period);
}
}

protected override void OnBarUpdate()
{
diff[0] = High[0] - Low[0];

double middle = EMATypical[0];
double offset = EMADiff[0] * OffsetMultiplier;
double offset1 = EMADiff[0] * OffsetMultiplier*0.5;

double upper = middle + offset;
double lower = middle - offset;
double upperhalfline = middle + offset1;
double lowerhalfline = middle - offset1;
double bspread = upper - lower;

Midline[0] = middle;
Upper[0] = upper;
Lower[0] = lower;
Values[3][0] = upperhalfline;
Values[4][0] = lowerhalfline;

Draw.Region(this, "KeltnerChannelwColor", CurrentBar, 0, Upper, Lower, null, RegionBrush, Opacity, 0);
// Draws text Band Spread in the lower right corner of panel 1
Draw.TextFixed(this, "tag1", "B. Sp "+bspread.ToString("N2"), TextPosition.BottomRight, Brushes.Black, new NinjaTrader.Gui.Tools.SimpleFont ("Arial", 11), Brushes.Black, Brushes.Silver, 10);
}

one of the attached images shows the progress of my work and the next image my goal

[Amedeus]

hi barriosmex

maybe taking a look at the Plots objects page is what you where missing ?
https://ninjatrader.com/fr/support/h...nt8/?plots.htm

in your case maybe something like :

Midline[0] = middle;
Upper[0] = upper;
Lower[0] = lower;
Values[3][0] = upperhalfline;
Values[4][0] = lowerhalfline;


if (condition of your liking)
{
Plots[3].Brush = Brushes.myColora;
Plots[4].Brush = Brushes.myColorb;
}
else
{
Plots[3].Brush = Brushes.myColorc;
Plots[4].Brush = Brushes.myColord;
}

edit :
maybe have a try with PlotBrushes too see if it is more appropriate..

https://ninjatrader.com/fr/support/helpGuides/nt8/?plotbrushes.htm

[barriosmex]

hi barriosmex

maybe taking a look at the Plots objects page is what you where missing ?
https://ninjatrader.com/fr/support/h...nt8/?plots.htm

in your case maybe something like :

Midline[0] = middle;
Upper[0] = upper;
Lower[0] = lower;
Values[3][0] = upperhalfline;
Values[4][0] = lowerhalfline;


if (condition of your liking)
{
Plots[3].Brush = Brushes.myColora;
Plots[4].Brush = Brushes.myColorb;
}
else
{
Plots[3].Brush = Brushes.myColorc;
Plots[4].Brush = Brushes.myColord;
}

edit :
maybe have a try with PlotBrushes too see if it is more appropriate..
https://ninjatrader.com/fr/support/h...lotbrushes.htm

Thank you!. Plot Brushes worked

I place the following conditions with flags to alternate the use of dotted bands

 if(!upperflag && High[0] >= Upper[0])
{
upperflag = true;
lowerflag = false;
}

if(upperflag && !lowerflag && Low[0] <= Lower[0])
{
lowerflag = true;
upperflag = false;
}

if(lowerflag)
PlotBrushes[4][0] = Brushes.Transparent;
if(upperflag)
PlotBrushes[3][0] = Brushes.Transparent;

I wonder if the implementation seems right to you? my knowledge in programming is very basic

[Amedeus]

hi barriosmex,

I wonder if the implementation seems right to you? my knowledge in programming is very basic

as long as it works for you... it looks ok to me, but i am just a beginner as well.

I've found PlotBrushes to be kinda demanding performance wise in the past.
maybe have a look at the utilization monitor when your instrument is awake.. (output > right ckck)

if you have one transparent plots anyway, maybe having one plot only ? beeing given different values depending on your flags could avoid the use of PlotBrushes ?
I would test something like, or similar to :

if(lowerflag)
Values[3][0] = upperhalfline;
if(upperflag)
Values[3][0] = lowerhalfline;