change color of line based on indicator

[Tradexxx]

hi,
running indicator 1, i would like to change the colors of the lines (painted from indicator 1), based on the values from indicator 2.
i assume it is possible, but how can this be done?
thx

[NinjaTrader_ChrisL]

Hi Tradexxx, thanks for your post.

If indicator 2 has a public plot or Series object then you can make an instance of indicator 2 in indicator 1. See the SampleMACrossover as an example. That strategy initializes two SMA indicators. I would recommend using RemoveDrawObject() to remove the old line and re-draw it with a different color.

https://ninjatrader.com/support/helpGuides/nt8/?removedrawobject.htm

Please let me know if I can assist any further.

[Tradexxx]

hello ChrisL, thank you for your post.

i don't understand what you mean by this.
imagine indicator 1 is ZIGZAG indicator.
and indicator 2 is MACD.
i would like to color the lines from ZIGZAG depending on result of MACD.
something like MACD Diff < 0 then draw ZIGZAG red and in case MACD Diff > 0 then draw in green.
is this possible?
why do i need to remove DrawObject?
thank you

[NinjaTrader_ChrisL]

Hi Tradexxx, thanks for your patience.

The ZigZag indicator would be a little more difficult to manipulate because its Value[] array for the plot is sparse (it gets updates at random points in the data). One could change the back brush of the chart, but It would take a bit more investigation to find how the ZigZag plot itself (specifically PlotBrushes) can be changed based on this condition.

I've attached an example for review.

[Tradexxx]

Hi Chris,
thank you for your post.
i saw that coloring the background by creating a normal indicator is working fine.
than i added zigzag and recognice it's not working.
for me, the print is ok. but unfortunately i don't have enough programming knowledge to proceed here...
if any of you has any idea, i'll be happy to proceed......
thank you

[NinjaTrader_ChrisL]

Hi Tradexxx, thanks for the follow up.

I noticed in the Miscellaneous region of the code OnRender is being used. So the indicator is drawing with the DX brush directly. One would need to find a valid index with PlotBrushes[0].Get(index) and change the color that way for a variable ZigZag brush.

Please let me know if I can assist any further.