How hide \ show plot dynamically?

[fx.practic]

Hello.

I'd like to hide \ show plots dynamically while indicator working.

In NT7 this worked fine:

if( SMA1[0] < SMA2[0] ) Plots[0].Pen.Color = Color.Empty;
if( SMA1[0] > SMA2[0] ) Plots[0].Pen.Color = Color.Black; 

In NT8 it not work.
And variant below not work too.

Plots[0].Pen = new Pen( Brushes.Transparent, 1 );
Plots[0].Opacity = 0;
Plots[0].Brush = Vis.Empty_Brush;

OnRenderTargetChanged()
{
   Plots[0].BrushDX= Brushes.Empty.ToDxBrush();   
   Plots[2].BrushDX = new DxSolidColorBrush( RenderTarget, new Color4( 0, 0, 0, 0) );
} 

Is there any way to do it?

[NinjaTrader_ChelseaB]

Hello fx.practic,

Set the Plot[index].Brush and then refresh with ForceRefresh().

Attached is an example.

[Zeos6]

Maybe I am missing something here, but can't you simply build your plots dynamicaly?
Just add them in the (State == State.Configure) and you can use variable to turn them on and off. Using InvokeAsync((Action) for this seems a bit of an overkill.

[fx.practic]

Thanks a lot, Chelsea! Great example of lucidity.



Zeos6, I am don't quite understand how to do this with manipulations in the (State == State.Configure):

if( SMA1[0] < SMA2[0] ) Plots[0].Pen.Color = Color.Empty; 
if( SMA1[0] > SMA2[0] ) Plots[0].Pen.Color = Color.Black; 

Also, I have idea to make checkbox, that hide \ show some plots.

[fx.practic]

Need additional clarification: I trying to hide plot, with each dot colored with PlotBrushes[][].
And this method not work.

Is there any way to hide colored plot too?

Now I using SendKey(F5), but this is ugly.

[NinjaTrader_ChelseaB]

Hello fx.practic,

Yes, a single bar's plot color can be set with PlotBrushes[plot index][bars ago].

Are you setting this to Brushes.Transparent?

Are you getting an error?

Do you have an export of a reduced script to demonstrate?

[Zeos6]

Hi fx.practic,

If you are trying to dynamically change plot colors on each point, have a look at the following thread:

http://ninjatrader.com/support/forum/showthread.php?t=3227

There is a sample multi colored plot indicator from the NT Team, from JoshP. It will probably do what you are looking for.

[fx.practic]

Zeos6: I mean not set color of one dot, but how to make transparent all dots of particular plot. Thank You for link.

Chelsea, let me clarify, what I tried.

Transparent color is

Color.FromArgb( 0, 255, 255, 255 ); 

Empty color is

Color.FromArgb( 0, 0, 0, 0 ); 

Brushes don't contain Brushes.Empty, so I used

Brush empty_brush = new SolidColorBrush(  Color.FromArgb( 0, 0, 0, 0 ) );
empty_brush.Freeze(); 

No Brushes.Transparent, neither empty_brush work if:

    Value[0] = Close[0];
    PlotBrushes[0][0] = Brushes.Red; 

Can You advice me some new ways?

[Zeos6]

Hi fx.practic,

I am really not sure what it is you are trying to accomplish. If you are trying to hide/show in real time, as your NT7 code seems to indicate, then the multicolored plot link I provided will work for you. If you are trying to show/hide at the start - during configuration, then my original suggestion will work.

EDIT: Have you tried something along the lines of ....

if(State == State.SetDefaults)
{
    AddPlot(Brushes.Blue, "SMA1");
    AddPlot(Brushes.Red, "SMA2");
     ...
}

protected override void OnBarUpdate()
{
    // Check that we have enough bars on our chart before processing
    if(CurrentBar < Period) 
        return;
            
     // Set the plots
    Values[0][0]     = SMA(High, Period)[0];     // SMA1
    Values[1][0]    = SMA(Low, Period)[0];       // SMA2

if (Values[0][0] > Values[1][0])
{
    // SMA1 > SMA2 code would set 
    // set SMA1 to lime and the SMA2 to transparent
                PlotBrushes[0][0] = Brushes.Lime;
                PlotBrushes[1][0] = Brushes.Transparent;
}
else if (Values[0][0] < Values[1][0]))
{
    // SMA1 < SMA2 code would set 
    // set SMA1 to transparent and the SMA2 to Purple
                PlotBrushes[0][0] = Brushes.Transparent;
                PlotBrushes[1][0] = Brushes.Purple;
}
else
{
    // SMA1 = SMA2 code would set 
    // set SMA1 to orchid and the SMA2 to green
                PlotBrushes[0][0] = Brushes.Orchid;
                PlotBrushes[1][0] = Brushes.Green;
}
    ...
}

[fx.practic]

Zeos6, let my explain what I need on this video:
https://monosnap.com/file/M1NByU2N5l...VvkhDeVMXsJouC

[Zeos6]

Oh OK. You want to show/hide your SMA using a button. Is that correct?

By the way, this is not what your NT7 code indicates.
if( SMA1[0] < SMA2[0] ) Plots[0].Pen.Color = Color.Empty;
if( SMA1[0] > SMA2[0] ) Plots[0].Pen.Color = Color.Black;

[fx.practic]

Zeos6, that is exactly what I want.
Yes, it work in NT7 in way You provide.
But, it not work in NT8 if:

if( SMA1[0] < SMA2[0] ) Plots[0].Pen.Color = Color.Empty; 
if( SMA1[0] > SMA2[0] ) Plots[0].Pen.Color = Color.Black;

Brushes[0][0] = Brushes[1][0] = Brushes.Pink; 

And I need to hide multycolored plot in NT8.

[Zeos6]

Hi fx.practic,

Attached is a simple skeleton code that does what you indicated you wanted. It's based off of what ChelseaB gave you. It works at my end. I am sure you can adapt it to your needs.

[fx.practic]

I didn't find the key row in Your code:

PlotBrushes[0][0] = Brushes.Orange; 

Please, try this.

[Zeos6]

Hello fx.practic,

I am trying to help you but now I am confused again. The code I sent you does exactly what you showed in your video. I have no idea what you mean by

PlotBrushes[0][0] = Brushes.Orange;

and how that even comes into this discussion. Is this multi timeframe?
What exactly is it that you want to do? The information you have provided is contradictory.if you can clearly explain what you want I might be able to help you. As it stands now, I have no idea what the issue is.