BarBrush Current(forming) bar

[12tkram]

Hi NT bods,

Just testing some code, and based on the current realtime price is higher or lower than the previous high or low I want to colour the forming bar (not bar[1]) but, it doesn't seem to work, what am I missing ?



//snippets of code

if (State == State.SetDefaults)
{
Description = "test";
Name = "test";
Calculate = Calculate.OnEachTick;
}

//add additional data sources
else if (State == State.Configure)
{
AddDataSeries(Instrument.FullName, BarsPeriodType.Day, 1); /// not used in this example,
AddDataSeries(Instrument.FullName, BarsPeriodType.Tick, 1); /// tick data for realtime prices
}

protected override void OnBarUpdate()
{
if(BarsInProgress == 2){
if( Closes[2][0]<Lows[0][1] ) BarBrushes[0] = Brushes.Magenta;
if( Closes[2][0]>Highs[0][1] ) BarBrushes[0] = Brushes.Lime;
}
}

[NinjaTrader_Kate]

Hello 12tkram,

Thank you for your post.

Do you see any errors in your log when you try to run this? If you're not checking to make sure there's enough bars on the chart before processing starts you'll hit an error - in this case you can't access the low of one bar back of the main series if this tries to run on the very first bar, so you need to make sure it's not processing until there's enough. You can add this to the beginning of OnBarUpdate to avoid this:

if (CurrentBars[0] < 2)
return;

If you add this do you see the bars being painted properly?

Please let us know if we may be of further assistance to you.

[12tkram]

Hi Kate, thanks for the response, I have that already in my code, I didnt post it as I didnt think it was relevant.


if(CurrentBars[0] < 2 ) return;
if(CurrentBars[1] < 2 ) return;
if(CurrentBars[2] < 2 ) return;

TBH, it looks like it colours Bar[1] while Bar[0] is forming

[12tkram]

Yeah, BarBrush and BarBrushes[0] both change Bar[1], not Bar[0] (the current bar) .. I modded to code just to change the colour each tick ..

is there any way to change the colour for the current forming bar ? Bar[0]

[NinjaTrader_Kate]

Hello 12tkram,

Thank you for your reply.

Attached is the little example I made to test this, which does color the bar as it's forming. Perhaps comparing this with your code may be of assistance to you.

Please let us know if we may be of further assistance to you.

[12tkram]

cool, thanks, I bet I have missed something really simple

[12tkram]

brilliant lol .. I can't even spot the difference I have gone cross eyed .. cut and pasted your code over mine and it works like a charm XD many thanks!!!!!