Finding programmatically when price approaches manually drawn trend line or channel

[music_p13]

Hello,

Do you have any reference samples on how to programmatically detect when price is approaching (x number of ticks) to manually drawn trend line or regression channel (upper or lower part of it)?

Thanks

[NinjaTrader_ChrisL]

Hello music_p13,

Thank you for the post.

Please see this example that can detect every horizontal line on the chart and label them programmatically:

https://ninjatraderecosystem.com/use...izontal-lines/

You can do the same thing with a regression line. It does not need to be within OnRender for your purpose. You can do the same in OnBarUpdate like so:

private NinjaTrader.NinjaScript.DrawingTools.RegressionChannel RC;

...

protected override void OnBarUpdate()
        {
            foreach (Gui.NinjaScript.IChartObject thisObject in ChartPanel.ChartObjects)
            {
                if(thisObject is NinjaTrader.NinjaScript.DrawingTools.RegressionChannel)
                {
                    RC = thisObject as NinjaTrader.NinjaScript.DrawingTools.RegressionChannel;

                    Print(RC.StartAnchor.Price.ToString());
                    Print(RC.EndAnchor.Price.ToString());

                }

            }
        }

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Please let me know if I can assist further.

[music_p13]

Thanks Chris,

And is there an easy way to retrieve price for a simple line or Ray - let's say "2 bars ago" - so see what the value of that line was 2 bars ago (provided it is NOT a horizontal line)... Or even for current bar...

Thanks

[NinjaTrader_ChrisL]

Hello music_p13,

Thank you for the reply.

You would need to use the Time object from the chart start/end anchor and use GetSlotIndexByTime():

https://ninjatrader.com/support/helpGuides/nt8/en-us/?getslotindexbytime.htm

That method will return the bar index of that time. The index counts up from the leftmost bar on the chart. From that data, you can find the price of any bar between the start anchor and the end anchor. You will essentially find the slope of the line in terms of price vs time.

Please let me know if I can assist further.