Plot on Current Bar Only

[sheimdal]

Hi All,

I'm plotting up and down arrows to show the current bid and ask prices. I only want them to show on the current bar.

They work fine except each arrow is shown on each bar across the chart. I don't want the chart cluttered. How do I limit the Plot arrows to the current bar only?

I've tried using this code but it kills all arrows even on the current bar;

PlotColors[0][1] = Color.Transparent

Any Ideas?

Thanks

[NinjaTrader_Matthew]

If you're using a Plot, there will be a value for each bar on the chart.

If you just want to show on the current bar, you can use draw methods:

DrawText("bid", GetCurrentBid().ToString(), 0, High[0] + TickSize, Color.Blue);

[NinjaTrader_Matthew]

If you were using Arrows, you can also use the DrawArrow Up/Down methods:

http://www.ninjatrader.com/support/helpGuides/nt7/drawarrowdown.htm

http://www.ninjatrader.com/support/helpGuides/nt7/drawarrowup.htm

[sheimdal]

Mathew,

Thank you for the response.

Your examples use the "Draw" functionality. I'm using the Plot function and have not been able to figure out how to limit the plot to the current bar only. All of the triangles show up on each bar on the chart as a plot not a Draw Object.

I have two Plots on the chart, one triangle for Bid and another for Ask. I've been trying this code with no luck;

PlotColors[0][1] = Color.Transparent;
PlotColors[1][1] = Color.Transparent;

Do I need to do some kind of Reset function on a Dataseries object or something similar?

[NinjaTrader_Matthew]

Mathew,

Thank you for the response.

Your examples use the "Draw" functionality. I'm using the Plot function and have not been able to figure out how to limit the plot to the current bar only. All of the triangles show up on each bar on the chart as a plot not a Draw Object.

I have two Plots on the chart, one triangle for Bid and another for Ask. I've been trying this code with no luck;

PlotColors[0][1] = Color.Transparent;
PlotColors[1][1] = Color.Transparent;

Do I need to do some kind of Reset function on a Dataseries object or something similar?

If I'm now understanding correctly, what you're attempting should work. I put together a quick script and that seems to accomplish your goal using:

        protected override void OnBarUpdate()
        {
			
			if(CurrentBar < 1)
				return;
            
			PlotColors[0][1] = Color.Transparent;
			PlotColors[1][1] = Color.Transparent;
			
            Plot0.Set(GetCurrentBid());
            Plot1.Set(GetCurrentAsk());
        }

Please let me know if this is not what you're looking for.

[sheimdal]

It worked. I was using a different if statement using FirstTickOfBar. Using CurrentBar as you outlined fixed it.

Thank you very much!

[koganam]

Mathew,

Thank you for the response.

Your examples use the "Draw" functionality. I'm using the Plot function and have not been able to figure out how to limit the plot to the current bar only. All of the triangles show up on each bar on the chart as a plot not a Draw Object.

I have two Plots on the chart, one triangle for Bid and another for Ask. I've been trying this code with no luck;

PlotColors[0][1] = Color.Transparent;
PlotColors[1][1] = Color.Transparent;

Do I need to do some kind of Reset function on a Dataseries object or something similar?

I understand your query, but maybe you are forcing yourself to use a particular method simply because it is what you want to use, rather than because it is the most suitable for the purpose that you have described.

For what you describe as your desired end result, it is much simpler to code, and more efficient to run, using a single reusable draw object (OK, in this case 2), than to use a DataSeries (which is what a Plot is).