SuperTrend_Dot

ÿþ//+------------------------------------------------------------------+

//|                                               SuperTrend_Dot.mq5 |

//|                        Copyright 2018, MetaQuotes Software Corp. |

//|                                                 https://mql5.com |

//+------------------------------------------------------------------+

#property copyright "Copyright 2018, MetaQuotes Software Corp."

#property link      "https://mql5.com"

#property version   "1.00"

#property description "SuperTrend Dot indicator"

#property indicator_chart_window

#property indicator_buffers 6

#property indicator_plots   2

//--- plot TrUP

#property indicator_label1  "Trend Up"

#property indicator_type1   DRAW_ARROW

#property indicator_color1  clrGreen

#property indicator_style1  STYLE_SOLID

#property indicator_width1  1

//--- plot TrDN

#property indicator_label2  "Trend Down"

#property indicator_type2   DRAW_ARROW

#property indicator_color2  clrRed

#property indicator_style2  STYLE_SOLID

#property indicator_width2  1

//--- input parameters

input uint     InpPeriod      =  10;   // Period

input double   InpMultiplier  =  1.5;  // Multiplier

//--- indicator buffers

double         BufferTrUP[];

double         BufferTrDN[];

double         BufferUP[];

double         BufferDN[];

double         BufferTR[];

double         BufferATR[];

//--- global variables

double         multiplier;

int            period;

int            handle_atr;

//+------------------------------------------------------------------+

//| Custom indicator initialization function                         |

//+------------------------------------------------------------------+

int OnInit()

  {

//--- set global variables

   period=int(InpPeriod<1 ? 1 : InpPeriod);

   multiplier=(InpMultiplier<0 ? 0 : InpMultiplier);

//--- indicator buffers mapping

   SetIndexBuffer(0,BufferTrUP,INDICATOR_DATA);

   SetIndexBuffer(1,BufferTrDN,INDICATOR_DATA);

   SetIndexBuffer(2,BufferUP,INDICATOR_CALCULATIONS);

   SetIndexBuffer(3,BufferDN,INDICATOR_CALCULATIONS);

   SetIndexBuffer(4,BufferTR,INDICATOR_CALCULATIONS);

   SetIndexBuffer(5,BufferATR,INDICATOR_CALCULATIONS);

//--- setting a code from the Wingdings charset as the property of PLOT_ARROW

   PlotIndexSetInteger(0,PLOT_ARROW,159);

   PlotIndexSetInteger(1,PLOT_ARROW,159);

//--- setting indicator parameters

   IndicatorSetString(INDICATOR_SHORTNAME,"SuperTrend Dot ("+(string)period+","+DoubleToString(multiplier,1)+")");

   IndicatorSetInteger(INDICATOR_DIGITS,Digits());

//--- setting buffer arrays as timeseries

   ArraySetAsSeries(BufferTrUP,true);

   ArraySetAsSeries(BufferTrDN,true);

   ArraySetAsSeries(BufferUP,true);

   ArraySetAsSeries(BufferDN,true);

   ArraySetAsSeries(BufferTR,true);

   ArraySetAsSeries(BufferATR,true);

//--- create MA's handles

   ResetLastError();

   handle_atr=iATR(NULL,PERIOD_CURRENT,period);

   if(handle_atr==INVALID_HANDLE)

     {

      Print("The iATR(",(string)period,") object was not created: Error ",GetLastError());

      return INIT_FAILED;

     }

//---

   return(INIT_SUCCEEDED);

  }

//+------------------------------------------------------------------+

//| Custom indicator iteration function                              |

//+------------------------------------------------------------------+

int OnCalculate(const int rates_total,

                const int prev_calculated,

                const datetime &time[],

                const double &open[],

                const double &high[],

                const double &low[],

                const double &close[],

                const long &tick_volume[],

                const long &volume[],

                const int &spread[])

  {

//--- #AB0=>2:0 <0AA82>2 1CD5@>2 :0: B09<A5@89

   ArraySetAsSeries(high,true);

   ArraySetAsSeries(low,true);

   ArraySetAsSeries(close,true);

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   if(rates_total<4)

      return 0;

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   int limit=rates_total-prev_calculated;

   if(limit>1)

     {

      limit=rates_total-2;

      ArrayInitialize(BufferTrUP,EMPTY_VALUE);

      ArrayInitialize(BufferTrDN,EMPTY_VALUE);

      ArrayInitialize(BufferUP,0);

      ArrayInitialize(BufferDN,0);

      ArrayInitialize(BufferTR,0);

      ArrayInitialize(BufferATR,0);

     }

//--- >43>B>2:0 40==KE

   int count=(limit>1 ? rates_total : 1),copied=0;

   copied=CopyBuffer(handle_atr,0,0,count,BufferATR);

   if(copied!=count) return 0;



//---  0AGQB 8=48:0B>@0

   for(int i=limit; i>=0 && !IsStopped(); i--)

     {

      double ATR=BufferATR[i];

      double median=(high[i]+low[i])/2.0;



      BufferUP[i]=median+ATR*multiplier;

      BufferDN[i]=median-ATR*multiplier;



      BufferTR[i]=(close[i]>BufferUP[i+1] ? 1 : (close[i]<BufferDN[i+1] ? -1 : BufferTR[i+1]));



      bool flag=(BufferTR[i]<0 && BufferTR[i+1]>0 ? true : false);

      bool flagh=(BufferTR[i]>0 && BufferTR[i+1]<0 ? true : false);

      

      if(BufferTR[i]>0 && BufferDN[i]<BufferDN[i+1])

         BufferDN[i]=BufferDN[i+1];

      if(BufferTR[i]<0 && BufferUP[i]>BufferUP[i+1])

         BufferUP[i]=BufferUP[i+1];



      if(flag)

         BufferUP[i]=median+ATR*multiplier;

      if(flagh)

         BufferDN[i]=median-ATR*multiplier;



      if(BufferTR[i]==1)

        {

         BufferTrUP[i]=BufferDN[i];

         BufferTrDN[i]=EMPTY_VALUE;

        }

      else

        {

         BufferTrDN[i]=BufferUP[i];

         BufferTrUP[i]=EMPTY_VALUE;

        }

     }



//--- return value of prev_calculated for next call

   return(rates_total);

  }

//+------------------------------------------------------------------+