Draw Objects on First Instance Only

[aligator]

Dear Support,

I can not find any reference on "How to draw only the first instance of a draw object."

For Example: The condition "Draw.ArrowUp if Both Price and RSI are rising" will draw arrows on every successive bar that meets the condition. However, we are interested only in the first arrow until the condition no longer exists and the the condition exists again.

Any reference or example scripts please?

Many thanks.
.

[NinjaTrader_Jesse]

Hello,

if the arrow is being plotted on each bar, that likely would mean you are using a unique Tag name like "Tag" + CurrentBar

To limit a drawing you would need to use a non unique tag like "MyTag" but this would update an existing object if the condition remains true.

To limit this to the first occurrence only, you would likely need a bool variable. When the drawing is added, set the bool variable to true. You would also need to surround the drawing with a condition to check if the bool variable is true. This would limit the drawing to once when it becomes true the first time and not after. You could reset the bool variable when you want this logic to work again.

if(myBool == false)
{
    Draw.Dot(...);
    myBool = true;
}

if(someConditionToReset)
    myBool = false;

I look forward to being of further assistance.