Changing colors in area fill (Draw.Region) depending on slope of EMA

[SuneSorgenfrei]

Hi
I need a little help on understanding why this does not work.
I am trying to change the color of the fill between 2 EMAs depending on the slope of the EMAs. I have debugged and the different part of the statement are hit at the right times so it seems that the color value is somehow overwritten as the area fill only has one color.

 protected override void OnBarUpdate()
{
if(CurrentBar < EmaHighLen)
return;

if(emaHigh[0]> emaHigh[1] && emaHigh[0]> emaHigh[2] && emaHigh[0]> emaHigh[3])
Draw.Region(this, CurrentBar+"tag1", CurrentBar, 0, emaHigh, emaLow, null, Brushes.Green, 25);
else if(emaHigh[0]< emaHigh[1] && emaHigh[0] < emaHigh[2] && emaHigh[0] < emaHigh[3])
Draw.Region(this, CurrentBar+"tagDown", CurrentBar, 0, emaHigh, emaLow, null, Brushes.Red, 25);
else
Draw.Region(this, CurrentBar+"tagNeutral", CurrentBar, 0, emaHigh, emaLow, null, Brushes.Gray, 25);
}

Best Regards,
Sune

[s.kinra]

Hello Sune,
I would expect it to draw 3 regions at the same time, so the results might not be as expected. In your if statements you're drawing the regions but not removing the older one to retain the latest one. Every region will have one static color which is definitely not as expected. You can goto drawing objects to find all regions drawn on chart.
Workaround would be to identify the bar index where slope is changing & then draw a new region between these bar index.
Hope it helps!

[SuneSorgenfrei]

Hi
Thanks for the input.
I found the issue. The issue was the CurrentBar paramter i used in the

Draw.Region(this, CurrentBar+"tag1", CurrentBar, 0, emaHigh, emaLow, null, Brushes.Green, 25);

As the value request in the method was

int startBarsAgo

CurrentBar, because it is all bars until now, takes all bars until now and colors them so therefore the last color would overwrite all else.
By changing the call to

Draw.Region(this, CurrentBar+"tag1", 1, 0, emaHigh, emaLow, null, Brushes.Green, 25);

the code does what I want.

Best Regards,
Sune

[NinjaTrader_ChelseaB]

Hello Sune,

Below is a link to an example indicator you may find helpful for using Draw.Region between two plots.

https://ninjatraderecosystem.com/user-app-share-download/macrossbuilder/