Histagram on the bottom of Price Panel

[stasha]

Hello folks,

Using NT 8.0.16.2, 64 bit. Trying to create a histogram on the bottom of price panel on the chart. it consists of small rectangles hovering around Y = 0. Problem is that what I get is - squished bars at the top (around 2900 area) and squished rectangles at the bottom (around 0) as attached. So it looks like two horizontal lines: the chart and the rectangles.

How can I possibly have it so that nothing is squished (chart is intact and rectangles at the bottom are visible)? In other words how to hide the big chunk of empty space between current market prices and 0? I obviously don't want to use fixed Y=2900 for histogram, cause the price will change with time.

Currently I use this to draw rectangles:
Draw.Rectangle(this, "FrDim" + CurrentBar, true /* auto scale */, 0, 0, 1, RectSize, Color, FillColor, 100 /*non transparent */, true /* on price panel */);

It does not have to be rectangles hovering around Y=0, I just thought it will work, but it seem to not. What is the right way to put an indicator on the bottom of price chart in this case (and not in a separate panel from the chart)?


Thank you very much in advance!

[NinjaTrader_PaulH]

Hello stasha,

Thanks for your post.

For this, we would recommend using OnRender(). You can see an example of the coding needed in the indicator SampleCustomRender in your NinjaTrader. The sample indicator also is commented to help clarify the code. Here is a link to OnRender(): https://ninjatrader.com/support/help.../?onrender.htm

Alternatively, you might consider using a plot with the plot style set to "bar" instead of using Draw.Rectangle and then use the scale justification of "Overlay".

[stasha]

Hi Paul.
I went with 2nd approach: AddPlot and giving it a value with overlay scale works perfect - thank you very much!
Another follow question is how can I change those plotted bars color on the fly using some calculation?
Basically:
if (condition1) Plot[0].Brush = Green;
else if (condition2) Plot[0].Brush = Red;

What should be in place of Plot[0].Brush? I found no way of modifying the color of the plot after it is added in AddPlot and am pretty sure there must be one.

Thank you!

[NinjaTrader_PaulH]

Hello stasha,

Thanks for your reply.

Changing the Plot[0].Brush will change the entire series. What you want to use is PlotBrushes[][] when the first index[] is the plot number and the second index[] is the actual bar to change.

Please see the help guide for an example conditional use: https://ninjatrader.com/support/help...lotbrushes.htm

[stasha]

Paul,
Thank you very much!
Very prompt and to the point! Wish all companies had this kind of support!