resetting indicators

[dirtybrown]

Hi. I am still new to Ninjatrader development. The functionality of the attached indicator is to simply print arrows based on the number of variables that occur within a certain number of seconds. They are datetimes. I manually set their values because this is just one small piece of a bigger puzzle I don't have access to so that's why I am manually setting them for now:

protected override void Initialize()
{
CalculateOnBarClose = true;
Overlay = true;
DateTime Now = System.DateTime.Now;
SpanThreshold = SpanThreshold.AddMilliseconds(-100000);

UpTriangleTime=UpTriangleTime.AddMilliseconds(-100009);
DownTriangleTime=DownTriangleTime.AddMilliseconds( 7);

lastdowncarattime=lastdowncarattime.AddMillisecond s(5);
lastupcarattime=lastupcarattime.AddMilliseconds(-100009);

pricebelowbluetime=pricebelowbluetime.AddMilliseco nds(-100009);
priceabovebluetime=priceabovebluetime.AddMilliseco nds(5);

lastupdottime=lastupcarattime.AddMilliseconds(-100009);
lastdowndottime=lastdowncarattime.AddMilliseconds( 777);

yelbelowbluetime=yelbelowbluetime.AddMilliseconds(-100009);
yelabovebluetime=yelabovebluetime.AddMilliseconds( 1);

}

but the indicator repaints on every bar, is there code in the wrong place?

[NinjaTrader_JoshP]

dirtybrown,

You should not place things in the Initialize() method like that. If you want something only run once please use if (CurrentBar == 0 && FirstTickOfBar) at the beginning of OnBarUpdate().

[dirtybrown]

dirtybrown,

You should not place things in the Initialize() method like that. If you want something only run once please use if (CurrentBar == 0 && FirstTickOfBar) at the beginning of OnBarUpdate().

hmm, Ok I initialized the variables like this:

if (CurrentBar == 0 && FirstTickOfBar) {


DateTime Now = System.DateTime.Now;
SpanThreshold = SpanThreshold.AddMilliseconds(-100000);

UpTriangleTime=UpTriangleTime.AddMilliseconds(-100009);
DownTriangleTime=DownTriangleTime.AddMilliseconds( 7);

lastdowncarattime=lastdowncarattime.AddMillisecond s(5);
lastupcarattime=lastupcarattime.AddMilliseconds(-100009);

pricebelowbluetime=pricebelowbluetime.AddMilliseco nds(-100009);
priceabovebluetime=priceabovebluetime.AddMilliseco nds(5);

lastupdottime=lastupcarattime.AddMilliseconds(-100009);
lastdowndottime=lastdowncarattime.AddMilliseconds( 777);

yelbelowbluetime=yelbelowbluetime.AddMilliseconds(-100009);
yelabovebluetime=yelabovebluetime.AddMilliseconds( 1);
return;

}

but still getting the repaints

[NinjaTrader_JoshP]

Please describe what you mean by repaints. Your draw objects are given unique names so your indicator will keep adding more and more objects.

[dirtybrown]

Please describe what you mean by repaints. Your draw objects are given unique names so your indicator will keep adding more and more objects.

I'm running this on a 1 tick chart with a straight line printing instead of candlestick. When the new tick comes though, the indicator reprints itself on the at the top (or bottom) of the previous tick. See attachment

[NinjaTrader_JoshP]

You should not give each tick a new unique name for the object. You should only give it unique names as per bar.

[dirtybrown]

You should not give each tick a new unique name for the object. You should only give it unique names as per bar.

I thought about that and tried drawing like this:

DrawArrowUp("up1", 0, Low[0] - x, Color.Green);

Doesn't seem to make a different for me at least. Is there another way I should be naming it?

[NinjaTrader_JoshP]

Not sure I follow. When you use a static name any future calls to that same signal name will modify the old object instead of drawing a new object. If you have additional objects with other names then those will be shown as well.

[dirtybrown]

Not sure I follow. When you use a static name any future calls to that same signal name will modify the old object instead of drawing a new object. If you have additional objects with other names then those will be shown as well.

I only want the arrow to print when the conditions given are true. I tried to give it a dynamic name like this:


/DrawArrowUp("t"+ CurrentBar.ToString(), 0, Low[0] - x, Color.Green);

and the same thing happens, the previous print of the indicator disappears and it's redrawn on a new tick.

I think maybe I need to move the for loop to a lower scope

[NinjaTrader_JoshP]

If you are using loops it could be the cause of redrawing itself. If you want the objects to "disappear" please use RemoveDrawObject().