single line different tones of colors

[andre.adamov]

I am wondering whether is it possible coloring a plot or line by gradient colors.

What i am trying to achive for example drawing a plot or line at the best bid and coloring that according the number of contracts offered that level.

i was trying this but it doesnt seem to be working:

Add(new Plot(new Pen(linecolor1, 2), PlotStyle.Block, "Ask"));
Add(new Plot(new Pen(linecolor2, 2), PlotStyle.Block, "Bid"));
	
ratio=Math.Min(1f,((float)Math.Abs(askTick))/(((float)FixedNumber)));
linecolor1=Color.FromArgb((int)(255f*ratio),Color.Red);
Plots[0].Pen.Color = linecolor1;		
											
ratio2=Math.Min(1f,((float)Math.Abs(bidTick))/(((float)FixedNumber)));
linecolor2=Color.FromArgb((int)(255f*ratio2),Color.Green);
Plots[1].Pen.Color = linecolor2;

thanks in advance!

[NinjaTrader_Bertrand]

Hi Andre, working with the allpha channel of FromArgb would be the right approach. As for an example would only be aware of http://www.ninjatrader.com/support/f...d=1&linkid=294

I would suggest setting the colors via PlotColors in NT7 - http://www.ninjatrader.com/support/h...sub=PlotColors

[andre.adamov]

Thanks for the quick answer.
Firstly I couldn't use it but fortunately i found the solution in the comment section. I think it should be updated according to this:

http://www.ninjatrader.com/support/forum/showthread.php?p=160928#post160928

second, I was trying to change to colors with no luck by overwriting theese numbers:
Color red = Color.FromArgb(255, 0, 0);
Color green = Color.FromArgb(0, 255, 0);

What should I do to change the colors?

[NinjaTrader_Bertrand]

Andre, thanks for the reply. What would your custom colors / ratios be printing for each bar, would they provide the dynamic change you seek? If your ratio would just be 1 for example it would be easily creating a static color only...

[andre.adamov]

The ratio would change for each bar.
It would be the depth of market at that level compared to a pre-defined fix number.

ratio=Math.Min(1f,((float)Math.Abs(askTick))/(((float)FixedNumber)));

in this case: ask limit orders / my reference level

[NinjaTrader_Bertrand]

I see thanks. Would definitely print that value out to doublecheck the calcs are hitting 'home' for you. Here's a quick test I just ran using PlotColors to push the colors to, I'm not seeing any issue with dynamically changing color generally this way -

ratio = Math.Min(1f,((float)Math.Abs(Volume[0]))/(((float)SMA(Volume, 10)[0])));
linecolor1=Color.FromArgb((int)(255f * 0.75 * ratio),Color.Red);
PlotColors[0][0] = linecolor1;		
Plot0.Set(SMA(10)[0]);

[andre.adamov]

Thank you Bertrand!
You were right, the calculation was wrong.
The coloring is fine now.

The last thing is that i dont know how to acces n-th level of ask or bid.

bidTick = GetCurrentBid();
bidTickVolume = GetCurrentBidVolume();

with this i can acces the price and depth of the best bid but I need for instance the 5th level.
how can I get that?

[NinjaTrader_Bertrand]

Great. Correct those would give you the current bid /ask of the Level1 data only. For deeper levels you would need to check into the OnMarketDepth() - http://www.ninjatrader.com/support/h...=OnMarketDepth