Draw.Region - Not plotting

[cp.trader]

Hi, I have an indicator that is coloring the area between 2 averages.

I have several problems

1. It was working on all charts that were in the minutes time frame but would not draw on the daily chart. I'm not sure why.
2. I upgraded to the latest version of NT8 and it won't draw on any chart for me.
3. I would like to put the upper and lower band of the moving averages to be shown in the databox. I'm not sure how to do this.
4. When this indicator is loaded I would like to offset the right margin of the chart so that I can put text markers on the right such that they do not interfere with the chart.

I have attached my indicator zip file.

Thanks for any help you can give me.

[NinjaTrader_JoshG]

Hello cp.trader,
Thanks for your post and welcome to the NinjaTrader forum.

1. It was working on all charts that were in the minutes time frame but would not draw on the daily chart. I'm not sure why.

How many days of data are you loading on your chart?

2. I upgraded to the latest version of NT8 and it won't draw on any chart for me.

Are there any errors on the 'Logs' tab of your Control Center?

3. I would like to put the upper and lower band of the moving averages to be shown in the data box. I'm not sure how to do this.

Just set the upper and lower bands to a Value to get them to appear in the data box. For example, to set the primary value of the indicator you would set your calculation to Value[0].This would appear in the data box with your plots name. Additionally, you can go on to assign multiple values to your indicator to display in the data box using Value[1], Value[2], etc.

4. When this indicator is loaded I would like to offset the right margin of the chart so that I can put text markers on the right such that they do not interfere with the chart.

You should be able to do this with ChartControl.Properties.BarMarginRight
I would set this in State.DataLoaded

[cp.trader]

Thanks for your response, I tried to sort the issues out but couldn't achieve the desired result.

I had a look.

Hello cp.trader,
Thanks for your post and welcome to the NinjaTrader forum.

How many days of data are you loading on your chart?

365 days which should be more than enough. If I chart just the moving averages, they show no problem.

Are there any errors on the 'Logs' tab of your Control Center?

Yes

Indicator 'MDI': Error on calling 'OnBarUpdate' method on bar 0: You are accessing an index with a value that is invalid since it is out-of-range. I.E. accessing a series [barsAgo] with a value of 5 when there are only 4 bars on the chart.

I can't see in the code where I'm accessing outside the array bounds.

Just set the upper and lower bands to a Value to get them to appear in the data box. For example, to set the primary value of the indicator you would set your calculation to Value[0].This would appear in the data box with your plots name. Additionally, you can go on to assign multiple values to your indicator to display in the data box using Value[1], Value[2], etc.

I'm using Value[0] and Value[1]. I was assuming there must be an option that I need to change to put them in the databox.

You should be able to do this with ChartControl.Properties.BarMarginRight
I would set this in State.DataLoaded

Thank you this worked properly for me.

If I comment Draw.Region out it appears to plot the 2 moving averages for me with no problems.

as long as draw.region is comment out I will see
Draw region is as follows


//Draw.Region(this, regionName, CurrentBar - trendStartBar + 1, 0, MDI1, MDI2, null, fillBrush, 20);

[NinjaTrader_JoshG]

I agree that's plenty of days being loaded. I think you may have an issue with the 'MDI' indicator. Did you create that indicator or did you get it from somewhere?

The error you are seeing on your log is a very common NinjaScript error. Please see the tip at the following link for information on resolving this error.

https://ninjatrader.com/support/helpGuides/nt8/en-us/?make_sure_you_have_enough_bars.htm

Once that error is fixed I would expect for you to be able to use Draw.Region without issue.

[cp.trader]

My first go at writing one myself. Basically it is just 2 moving averages with the region colored between them.
I wasn't able to find an example of this for NT8. Do you know of any examples

[NinjaTrader_JoshG]

I wasn't able to find an example of this specifically. I will leave this post open for anyone else that wants to offer suggestions on where to find something like this.

[cp.trader]

Thanks Josh,

I have it working at the moment, but I had to use a try catch to get rid of the exception.

I've attached a code snippet that is causing the problem. I can't see how to apply your previous suggestion to fix this. I can't see what is causing the problem any further insight would be appreciated.

The update bar is

protected override void OnBarUpdate()
{
try
{ //Add your custom indicator logic here.

MDI0[0] = emaValues[0]; // Plot the selected MA fast
MDI1[0] = wmaValues[0]; // Plot the selected MA slow

TrendDirection mdi0TrendDirection = IsRising(MDI0) ? TrendDirection.Rising : IsFalling(MDI0) ? TrendDirection.Falling : TrendDirection.Neutral;
TrendDirection mdi1TrendDirection = IsRising(MDI1) ? TrendDirection.Rising : IsFalling(MDI1) ? TrendDirection.Falling : TrendDirection.Neutral;

TrendDirection trend;
if (mdi0TrendDirection == TrendDirection.Rising && mdi1TrendDirection == TrendDirection.Rising)
{
trend = TrendDirection.Rising;
trendBrush = PanelColorTrendRising;
}
else if (mdi0TrendDirection == TrendDirection.Falling && mdi1TrendDirection == TrendDirection.Falling)
{
trend = TrendDirection.Falling;
trendBrush = PanelColorTrendFalling;
}
else
{
trend = TrendDirection.Neutral;
trendBrush = PanelColorTrendNeutral;
}


if (currentTrendDirection != trend)
{
currentTrendDirection = trend;
trendChangeStartBar = CurrentBar;
regionName = "trend" + CurrentBar.ToString();
}

Draw.Region(this, regionName, CurrentBar - trendChangeStartBar + 1, 0, MDI0, MDI1, Brushes.Transparent, trendBrush, TrendOpacity, 0);
}
catch (System.Exception ex)
{
}
}

Where
emaValues = EMA(Close, Period).Value;
wmaValues = WMA(Close, Period).Value;

and
[XmlIgnore]
[Browsable(false)]
public Series<double> MDI0
{
get { return Values[0]; }
}

[XmlIgnore]
[Browsable(false)]
public Series<double> MDI1
{
get { return Values[1]; }
}

I can't see what is happening to cause the error I described before

[NinjaTrader_PatrickH]

Hello cp.trader,

Thank you for your response.

The main item here is the use of the SolidColorBrushes. I would recommend not only reviewing our materials on brushes at the following link but downloading my edited version of your indicator and reviewing the changes I made. Specifically I am using Brushes in place of SolidColorBrushes.

Working with Brushes: https://ninjatrader.com/support/help...th_brushes.htm

Please let me know if you have any questions.