Draw rectangle

[djkiwi]

Hi Guys, I'm trying to draw a rectangle at the same time slot each day. The chart may go back 30 days so needs to draw a rectangle for each day. I'm using the code in this thread.

http://www.ninjatrader.com/support/forum/showthread.php?t=30726&highlight=draw+rectangle+time

The problem with this code is it only draws the rectangle on the current day so would like to know how to draw the rectangle for each day on the chart.

Thanks in advance
DJ

[NinjaTrader_JC]

Hello djkiwi,

Using the following code:

DrawRectangle("ColorCloseRange", false, startDateTime, 1000, endDateTime, 1200, Color.Red, Color.Yellow,10);

With the tag being the same name it will override if it is called again. So if you would like to keep the old drawing objects you may want to do something like:

DrawRectangle("ColorCloseRange"+CurrentBar, false, startDateTime, 1000, endDateTime, 1200, Color.Red, Color.Yellow,10);

Let us know if we can be of further assistance.

[akushyn]

Hello, experienced guys.

I would like to do , showed in attached picture below.
How to draw the rectangle starts from right side of the chart?

I don't need to draw on history. Would like to redraw on every bar update.

Thanks in advance !

[Harry]

Hello, experienced guys.

I would like to do , showed in attached picture below.
How to draw the rectangle starts from right side of the chart?

I don't need to draw on history. Would like to redraw on every bar update.

Thanks in advance !

On a chart with equidistant bars you can use negative values for startBarsAgo and endBarsAgo. You can also code a custom plot and directly draw on the chart panel.

[NinjaTrader_JC]

Hello akushyn,

Drawing object in the future can get a bit complicated but if it is a time based series and equidistant bars it should work mostly like you would expect but it is not something that we can really support since you are accessing values on a chart that are not present yet.

Negative values as Harry suggested will work and you may also add time to the DateTime series as well that you may try for example:

if(!Historical)
	DrawRectangle("ColorCloseRange", false, Time[0], Low[0], Time[0].AddMinutes(5), High[0], Color.Red, Color.Yellow,10);

[akushyn]

Hello akushyn,

Drawing object in the future can get a bit complicated but if it is a time based series and equidistant bars it should work mostly like you would expect but it is not something that we can really support since you are accessing values on a chart that are not present yet.

Negative values as Harry suggested will work and you may also add time to the DateTime series as well that you may try for example:

if(!Historical)
	DrawRectangle("ColorCloseRange", false, Time[0], Low[0], Time[0].AddMinutes(5), High[0], Color.Red, Color.Yellow,10);

Thank you for your answer.
Have another related question...

Would like to start draw rectangle for the current day starts from start of the day 00:01 time to the last bar.
How to get the bar time of the beginning of the current day for specified time frame ?

The same issue is for HorizontalLine

[NinjaTrader_CalH]

akushyn,

You would need to use Bars.GetBar(DateTime time) to get the bars at 00:01 and the end bar.

However, you won't want to use the Horizontal line as this will draw a line continuously. You would want to use DrawLine().

http://www.ninjatrader.com/support/h...tml?getbar.htm

Let me know if I can be of further assistance.

[akushyn]

Thanks for DrawLine().

I used :

DateTime startDateTime;
DateTime endDateTime;
Bars.Session.GetNextBeginEnd(Bars, 0, out startDateTime, out endDateTime);

...

DrawLine("mavVolPrice", false, startDateTime, maxVolumeOfPrevDay, endDateTime, maxVolumeOfPrevDay, Color.Red, DashStyle.Dash, 2);

Now I have what I wish first ))
Further, how is it possible to see such rectangles also on history, cause I see only the last day ?

[NinjaTrader_PatrickH]

Hello akushyn,

Thank you for your response.

You can use the example provided by JC for both the DrawLine() and DrawRectangle():

DrawRectangle("ColorCloseRange"+CurrentBar, false, startDateTime, 1000, endDateTime, 1200, Color.Red, Color.Yellow,10);

This uses CurrentBar in the tag to allow it to draw multiples of the object. However, we would need to include some way to limit the drawing to once a day rather than drawing multiple objects for each bar of the day. So essentially one tag per day. This can be achieved by setting the tag only on the FirstBarOfSession:

if(Bars.FirstBarOfSession)
{
sessionTag = CurrentBar;
}

An example of using this for the DrawLine would be the following:

DrawLine("mavVolPrice" + sessionTag, false, startDateTime, maxVolumeOfPrevDay, endDateTime, maxVolumeOfPrevDay, Color.Red, DashStyle.Dash, 2);