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Indicator won't plot when alert is written in

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  • KBJ
    replied
    I think this code might solve a couple of problems that I saw in the code...

    Code:
    protected override void OnBarUpdate()
    {
      if (CurrentBar == 0) return;     // So we can access one bar back (Volume[1]).
    
      if (Bars.PercentComplete > 0)    // Has current bar started yet?
      {                                // Yes.
         Plot0.Set( Volume[0] / Bars.PercentComplete );  // Pro-rate current volume.
    
         if ( (Volume[0] / Bars.PercentComplete) > Volume[1] )
         {
             Alert( "myAlert", NinjaTrader.Cbi.Priority.High, "PRV", 
                     "Alert1.wav", 30, Color.Black, Color.Yellow );
         }
         return;
      }
    
      //
      // Current bar has not started yet...
      //
      Plot0.Set( Volume[1] );    // Display volume for last bar instead.
    }
    ...what I noticed was a potential divide-by-zero if PercentComplete was zero, and an access violation on the first bar if the Alert code was un-commented.

    Hope this helps.

    KBJ

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  • NinjaTrader_Dierk
    replied
    Glad it's resolved for you.

    Leave a comment:


  • maxpi
    replied
    I never think to go to the logs, sorry... it was trying to reference the bar before bar[0]...

    I still wonder why, when updating every tick, it stops plotting at times, I can use it when it does that but it's annoying. If I reapply the indicators it brings the plot up to date.
    Last edited by maxpi; 10-24-2007, 01:09 PM.

    Leave a comment:


  • NinjaTrader_Dierk
    replied
    Is there any funny stuff in the logs?

    Leave a comment:


  • maxpi
    started a topic Indicator won't plot when alert is written in

    Indicator won't plot when alert is written in

    I have the following code, it works fairly well, sometimes it stops ploting but it displays the current value at the side of the screen which is what I want always. When I include the section of code for generating the alert it does not plot and it does not display the current value.

    protectedoverridevoid OnBarUpdate()
    {
    if (Bars.PercentComplete>0)
    {
    Plot0.Set(Volume[0] /Bars.PercentComplete);
    }

    /*
    if (Volume[0] /Bars.PercentComplete >Volume[1])
    {
    Alert("myAlert", NinjaTrader.Cbi.Priority.High, "PRV", "Alert1.wav", 30, Color.Black, Color.Yellow);
    }
    */
    }
    Last edited by maxpi; 10-24-2007, 12:19 PM.

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