BarColor does not work from OnMarketData()?

[alexandroid]

Hi,

I am trying to write an indicator using OnMarketData() method and have it color bars based on the bar values. However, it seems like BarColor is being completely ignored in this case.

I can see that bar values go from positive to negative but the bar color remains the same - the one specified in indicator properties in UI. What am I doing wrong? Should I be using a different Plot constructor?

public class TugOfWar : Indicator {
...
private static readonly Color BULL_BAR_COLOR = Color.FromKnownColor(KnownColor.DodgerBlue);
private static readonly Color BEAR_BAR_COLOR = Color.FromKnownColor(KnownColor.Firebrick);

protected override void Initialize()
{
    Plot p = new Plot(BULL_BAR_COLOR, PlotStyle.Bar, "BarWinners");
    Add(p);
    p.Pen.Width = 5;

    Overlay                = false;
    CalculateOnBarClose = false;
}

protected override void OnBarUpdate() {} // currently not used - empty

protected override void OnMarketData(MarketDataEventArgs md) {
    ...
    int diff = volAtAsk - volAtBid;
    BarColor = (diff >= 0 ? BULL_BAR_COLOR : BEAR_BAR_COLOR);
    BarWinners.Set(diff);
}

[NinjaTrader_PatrickH]

Hello alexandroid,

Thank you for your post.

BarColor would change the color of the bars on the chart and not what is listed in the Data Series menu of the chart. Are the bars on the chart not changing colors?

[alexandroid]

Oh my God, yes, the bars on the chart do! I was so focused on watching my indicator bars that I completely missed that.

I've tried adding DrawOnPricePanel = false to Initialize() method but it still does not help.

How can I achieve different colored bars for my indicator?

[NinjaTrader_PatrickH]

alexandroid,

Thank you for your response.

You would use PlotColors, you can find a reference sample at the following link: http://ninjatrader.com/support/forum...ead.php?t=3227

[alexandroid]

Thank you very much! Using PlotColors[0][0] = BULL_BAR_COLOR; works!