Plot0.Set not executed when overriding Plot()

[fpa75]

Hello,

Here is the most basic code to display an indicator:

protected override void OnBarUpdate()
{
   // Use this method for calculating your indicator values. Assign a value to each
   // plot below by replacing 'Close[0]' with your own formula.
   Plot0.Set(Close[0]);
}
/*        
public override void Plot(Graphics graphics, Rectangle bounds, double min, double max)
{
}
*/ 

Plot0 is correctly displayed. Can someone explain why, as soon as overriding Plot() is uncommented, then nothing is displayed anymore :

protected override void OnBarUpdate()
{
   // Use this method for calculating your indicator values. Assign a value to each
   // plot below by replacing 'Close[0]' with your own formula.
   Plot0.Set(Close[0]);
}
        
public override void Plot(Graphics graphics, Rectangle bounds, double min, double max)
{
   // Prevents Plot0.Set() in OnBarUpdate() to be executed ???
} 

So, when overriding Plot(), does it mean that Plot0.Set() cannot be used anymore ? This is strange, and I cannot understand if this is by design, or a mistake in my code.

Thanks.

[koganam]

Hello,

Here is the most basic code to display an indicator:

protected override void OnBarUpdate()
{
   // Use this method for calculating your indicator values. Assign a value to each
   // plot below by replacing 'Close[0]' with your own formula.
   Plot0.Set(Close[0]);
}
/*        
public override void Plot(Graphics graphics, Rectangle bounds, double min, double max)
{
}
*/ 

Plot0 is correctly displayed. Can someone explain why, as soon as overriding Plot() is uncommented, then nothing is displayed anymore :

protected override void OnBarUpdate()
{
   // Use this method for calculating your indicator values. Assign a value to each
   // plot below by replacing 'Close[0]' with your own formula.
   Plot0.Set(Close[0]);
}
        
public override void Plot(Graphics graphics, Rectangle bounds, double min, double max)
{
   // Prevents Plot0.Set() in OnBarUpdate() to be executed ???
} 

So, when overriding Plot(), does it mean that Plot0.Set() cannot be used anymore ? This is strange, and I cannot understand if this is by design, or a mistake in my code.

Thanks.

If you want the base Plot method to be called, then you must code it to be called.

public override void Plot(Graphics graphics, Rectangle bounds, double min, double max) 
{
   [B][COLOR=Blue]base.Plot(graphics, bounds, min, max); [/COLOR][/B]
   // the rest of your custom stuff. Or you can call base.Plot(...) last. Your choice.
}

[NinjaTrader_CalH]

Hello fpa75,

Thank you for your post and to Koganam for answering.

Yes, you need to have base.Plot(graphics, bounds, min, max); in order to show any plots the indicator has

Let me know if I can be of further assistance.

[fpa75]

Thanks. It works !

Fabrice.

PS: I have added another Plot (Plot1) and base.Plot(graphics, bound, min, max) displays both. As Cal H. says, this command tells the graphical rendering engine to display all the PlotXX in OnBarUpdate().