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Indicator Development Support for the development of custom indicators using NinjaScript.

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Old 09-18-2017, 03:32 PM   #1
Zeos6
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Default Drawing Lines

Hi,
I'm plotting a horizontal line on a Renko chart. Most of the time it works fine. The problem occurs when there are bars with the same time stamp; for example, 18:00:00:023 (bar index 447), 18:00:00:023 (bar index 448), 18:00:00:023 (bar index 449), 18:00:00:050 (bar index 450) .The line stops drawing on the first of those bars

I understand why this is happening. The overloads for DrawLine allow you to start/end plotting at either startBarsAgo/endBarsAgo OR startTime/endTime. In my situation I need to use a DateTime to begin plotting and therefore I am stuck with using a DateTime to terminate the plot. Unfortunately Time[0] only gives a time stamp accurate to seconds and therefore the plot terminates early.

I think the plot might work if it were possible to have an overload that would allow the use of DateTime and barsAgo interchangeably. But I am not sure of that. Can you suggest how I can extend my plot to bars with the same Time[0] value time stamp but which differ in the millisecond portion of the time stamp as seen in the Data Box? Thank you.
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Old 09-18-2017, 03:49 PM   #2
NinjaTrader_Jim
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Hello Zeos6,

Thanks for your inquiry.

After looking into this further, it appears that the DateTime value of the Time object is used to find a slot to place the ChartAnchor of the Drawing Tool.

I will submit a feature request on your behalf asking for DrawingTool overloads that accept millisecond granularity. I will update this post with the ticket ID after it has become available.

EDIT: This feature request is being tracked with the ticket ID SFT-2696. This feature's implementation can be found in the Release Notes of the version of NinjaTrader that includes the feature. You can find the Release Notes here: https://ninjatrader.com/support/help...ease_notes.htm

Feature requests are fulfilled based on our development team's schedule and priorities and we cannot provide a time frame for it to become available.

In the meantime, you could devise a workaround by using custom rendering to draw a line to actual pixel coordinates that are translated from how many milliseconds the time you want to plot is offset from the slot's time.

I look forward to being of further assistance.
Last edited by NinjaTrader_Jim; 09-20-2017 at 02:43 PM.
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