Drawing a rectangle into the future

[cunparis]

I want to draw a rectangle for the entire session. In my code I set the end time to be a time into the future (the next day). This draws the rectangle but as time goes on the end of the rectangle appears and it does not extend to the date/time I set.

When I double click on the rectangle and click data I see I have the end time set correctly. Is this a bug? Is there another way to get this to draw into the future? The only workaround I found was to redraw this rectangle on every bar. This seems to work but it just seems inefficient to redraw it every bar (I have lots of them).

[NinjaTrader_AdamP]

cunparis,

Could you possibly post your code for review?

[koganam]

It depends on what type of chart you are using. If you are not using a fixed time interval chart, then there is no way for the code to determine where the session end time will be, so you will have to redraw the rectangle on each bar, or at least periodically.

[cunparis]

Adam, the code is here:

i.DrawRectangle("Zone"+i.ToDay(startTime)+":"+top+":"+bottom, false, startTime, bottom, endTime, top, color, colorArea, opacity);

It depends on what type of chart you are using. If you are not using a fixed time interval chart, then there is no way for the code to determine where the session end time will be, so you will have to redraw the rectangle on each bar, or at least periodically.

I think you found the reason. I'm not using minute chart. So this makes sense.

I wonder if I could specify x bars into the future instead of a date/time?

[NinjaTrader_Bertrand]

Hi cunparis, correct, this would only work on a timed based chart, where future timestamps are known - unfortunately we could only support drawing into the future by using a future DateTime.

[koganam]

... I wonder if I could specify x bars into the future instead of a date/time?

Yes, you can. Then just start praying that they do not break it in a future update.

[Harry]

Hi cunparis, correct, this would only work on a timed based chart, where future timestamps are known - unfortunately we could only support drawing into the future by using a future DateTime.

I have found that you can draw into the future by using DrawRectangle with a negative value for the index. Example is attached. The indicator shows the Jackson Zones for coming Monday.

[[email protected]]

Harry

Can you please explain to an amateur how to enter a negative value on the index?

I want to extend my rectangle into the future

Thanks

[Harry]

Harry

Can you please explain to an amateur how to enter a negative value on the index?

I want to extend my rectangle into the future

Thanks

Just use DrawRectangle as described in the NinjaScript reference manual

DrawRectangle(string tag, int startBarsAgo,  double  startY, int endBarsAgo,  double  endY, Color color)  
DrawRectangle(string tag, bool autoScale,  int  startBarsAgo, double startY,  int  endBarsAgo, double endY, Color color,  Color  areaColor, int areaOpacity)

and use it with negative values for startBarsAgo and endBarsAgo.

Also make sure to select a sufficient value for the right margin under chart properties.

[crunchfx]

extend rectangle

where do you go to enter the negitive value.