DrawLine on volume charts

[palinuro]

This code works as expected on time charts. On volume charts, however, it starts out correctly but as the bar progresses the line moves back to the prior bar.

protected override void OnBarUpdate()
{
// Use this method for calculating your indicator values. Assign a value to each
// plot below by replacing 'Close[0]' with your own formula.
// Plot0.Set(Close[0]);

if (!Historical) DrawLine(CurrentBar.ToString(),true,0,High[0] + 2,0,Low[0]-2,Color.Chocolate,DashStyle.Dash,2);

}

[NinjaTrader_JoshP]

Thanks for reporting. We will look into it.

[NinjaTrader_JoshP]

palinuro,

This occurs because draw objects are now anchored based on time. When you first drew the line it was at a certain timestamp. As the volume bar builds it keeps changing timestamps, but your line was already of an earlier time stamp so it seems like it is moving.

To address you could try using the DateTime signature and just pass in Time[0] as the time you want to draw on and keep refreshing that line based on the latest volume bar's time. Note that if you are using very short volume/tick charts you can end up with multiple bars with the same time stamp and in those instances the line would go on the very first bar with that time stamp.

[palinuro]

Thanks, that does it.