Histogram buffers - page 2

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candle sticks only work at main window.

in sep-window, Histogram only need one buffer and based on 0 to draw.

 

Instead of using indicator index, I draw trendlines for the bars as a workaround in sub-windows.

The index pairing does not work in the subwindows.

 

"SetIndexStyle" function controls drawing parameters of an indicator array. The drawing mode of DRAW_LINE assumes that lines between values defined in a corresponding indicator array are drawn. The drawing mode of DRAW_HISTOGRAM having been applied to the main window indicator has its special features, as well. A histogram is drawn between corresponding values of two index arrays: an even one (here: SpanA_Buffer) and an odd one (here: SpanB_Buffer). At that, the color of the index array is used the value of which is higher.



Sad...

So, this feature does not exist in indicator_separate_window...

I'm just trying to port a histogram indicator from main window to separate window...

 
stringo:
From the article:

"SetIndexStyle" function controls drawing parameters of an indicator array. The drawing mode of DRAW_LINE assumes that lines between values defined in a corresponding indicator array are drawn. The drawing mode of DRAW_HISTOGRAM having been applied to the main window indicator has its special features, as well. A histogram is drawn between corresponding values of two index arrays: an even one (here: SpanA_Buffer) and an odd one (here: SpanB_Buffer). At that, the color of the index array is used the value of which is higher.


 See also Heiken Ashi custom indicator as sample.

Dear stringo...

I create main window CI with 5 buffers, 2 to draw histos and 3 to draw lines. The histos is drawn from and to the wrong value. But when I eliminate the line buffers ( so I'm only use 2 buffers for histos), the histos is drawn correctly.


Correct me if I'm wrong : we can not mix DRAW_HISTOGRAM and DRAW_LINE in one CI because that can cause MT4 to draw a wrong histogram(s).


Thanks before and after and ... Happy New Year Twenty Ten

 

I'm glad MT5 developer decided to incorporate new drawing styles - but the question remains, will it still not work in separate window?

creating chart or indicator drawn as chart on separate window is very much needed. A programmer has created an indicator somewhat achieving this

(google 'chart clones' - great to get rid of those pesky title bars :)) but I'm hoping this would be a standard feature in MT5!

  • DRAW_CANDLES -- requires four indicator buffers (CandleSample.mq5)
  • DRAW_HISTOGRAM2 -- requires two indicator buffers (HistogramSample.mq5)
  • DRAW_BARS -- requires four indicator buffers (BarsSample.mq5)



     

    Have read this thread through a couple of times now but still can't seem to figure out the solution to what I need...

    I am trying to create an indicator that paints the area between two defined standard deviation bands. E.g. The area between the 2nd and 3rd deviations from the central MA. How can I do this? My code is below. 

    //+------------------------------------------------------------------+
//WBC_BollingerBand_Zone                                             |
//+------------------------------------------------------------------+
#property copyright "whitebloodcell"
#property link      ""

#property indicator_chart_window
#property indicator_buffers 7

#property indicator_color1 DimGray
#property indicator_color2 DarkGreen
#property indicator_color3 Red
#property indicator_color4 Green
#property indicator_color5 Maroon
#property indicator_color6 Red
#property indicator_color7 Green

#property indicator_width1 1
#property indicator_width2 1
#property indicator_width3 1
#property indicator_width4 1
#property indicator_width5 1
#property indicator_width6 2
#property indicator_width7 2

#property indicator_style1 STYLE_SOLID
#property indicator_style2 STYLE_SOLID
#property indicator_style3 STYLE_SOLID
#property indicator_style4 STYLE_SOLID
#property indicator_style5 STYLE_SOLID

extern int    BandsLength     =    20;
extern int    BandsMethod     =    MODE_EMA;
extern int    BandsPrice      = PRICE_CLOSE;
extern double BandsDeviation1 = 2; 
extern double BandsDeviation2 = 3; 

double MaBuffer[];
double UpperBand1[];
double LowerBand1[];
double UpperBand2[];
double LowerBand2[];

double buffer5[];
double buffer6[];

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+

int init() {
   SetIndexBuffer(0,MaBuffer);
   SetIndexBuffer(1,UpperBand1);
   SetIndexBuffer(2,LowerBand1);
   SetIndexBuffer(3,UpperBand2);
   SetIndexBuffer(4,LowerBand2);
   
   SetIndexBuffer(5,buffer5); 
   SetIndexStyle(5,DRAW_HISTOGRAM);
   SetIndexBuffer(6,buffer6); 
   SetIndexStyle(6,DRAW_HISTOGRAM);

   SetIndexLabel(0,"Bands ma");
   SetIndexLabel(1,"Bands upper band 1");
   SetIndexLabel(2,"Bands lower band 1");
   SetIndexLabel(3,"Bands upper band 2");
   SetIndexLabel(4,"Bands lower band 2");
   SetIndexLabel(5,"Zone Upper Bound");
   SetIndexLabel(6,"Zone Lower Bound");
   return(0);
}

int deinit()
{
   return(0);
}


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+

int start() {
   double sum,ma;
   int    counted_bars = IndicatorCounted();
   int    limit,i,k;


   if(counted_bars < 0) {return(-1);}
   if(counted_bars>0) {counted_bars--;}
   
   limit = Bars-counted_bars;

   for (i=limit;i>=0;i--) {
      ma = iMA(NULL,0,BandsLength,0,BandsMethod,BandsPrice,i);
            for (sum = 0.0, k = 0; k < BandsLength; k++) {
                 sum += ((Close[k+i]-ma)*(Close[k+i]-ma));
            }     

      //
      //
      //
      //
      //
      
      MaBuffer[i] = ma;
      if (BandsDeviation1!=0) {
            UpperBand1[i]  = ma+BandsDeviation1*MathSqrt(sum/BandsLength);
            LowerBand1[i]  = ma-BandsDeviation1*MathSqrt(sum/BandsLength);
      }               
      if (BandsDeviation2!=0) {
            UpperBand2[i]  = ma+BandsDeviation2*MathSqrt(sum/BandsLength);
            LowerBand2[i]  = ma-BandsDeviation2*MathSqrt(sum/BandsLength);
      } 
      //Red
      //buffer6[i] = MaBuffer[i];
      //buffer5[i] = UpperBand2[i]; 
      //buffer5[i] = MaBuffer[i];
      //buffer6[i] = LowerBand2[i]; 
   }            
   return(0);
}
     

    For working examples check out :   https://www.mql5.com/en/forum/130531

    JohnT

     
    jft:

    For working examples check out :   https://www.mql5.com/en/forum/130531

    JohnT

    Why are you responding now ?  you are 6 years late . . .   please do not drag up 6 year old posts unless you have a exceptional reason.

     

    Thread started  2007.01.04 

     
    DxdCn: candle sticks only work at main window.

    in sep-window, Histogram only need one buffer and based on 0 to draw.

    phy: Instead of using indicator index, I draw trendlines for the bars as a workaround in sub-windows.
    The index pairing does not work in the subwindows.

    How to Draw Cnadle chart in indicator_separate_window ? - MQL4 forum
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