Drawn diamonds disappear

[Lonneman]

Hi, I am trying to make the indicator draw a black diamond when three conditions are met. The way I did it (see below) works, but it only shows the diamond of the last occasion, the one before that disappears when a new one is drawn, so there is only one black diamond on the chart at any time.

This defeats its purpose, because I want to use it to visually check the whole chart for every occurence, to see if I am happy with the three conditions as entry criteria.

How can I make it keep the old diamonds?

protected override void OnBarUpdate()
 {

[lots of stuff]

 if (bLongCond1 == true && bLongCond2 == true && bLongCond3 == true)        
       DrawDiamondLong();
 }
         
protected void DrawDiamondLong()
{
      Overlay = true;
      DrawDiamond("", true, -1, Low[0] + 0.0004, Color.Black);
}

[NinjaTrader_Bertrand]

Lonneman, you would then need to use a unique tag id for each diamond object created in the process, this sample would show you how - http://www.ninjatrader.com/support/f...ead.php?t=3419