//+------------------------------------------------------------------+ //| haOpen.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 "Heikin-Ashi Open indicator" #property indicator_separate_window #property indicator_buffers 2 #property indicator_plots 2 //--- plot O #property indicator_label1 "HA Open" #property indicator_type1 DRAW_LINE #property indicator_color1 clrGreen #property indicator_style1 STYLE_SOLID #property indicator_width1 1 //--- plot C #property indicator_label2 "HA Close" #property indicator_type2 DRAW_LINE #property indicator_color2 clrRed #property indicator_style2 STYLE_SOLID #property indicator_width2 1 //--- indicator buffers double BufferOpen[]; double BufferClose[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- indicator buffers mapping SetIndexBuffer(0,BufferOpen,INDICATOR_DATA); SetIndexBuffer(1,BufferClose,INDICATOR_DATA); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"Heikin-Ashi Open"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); //--- setting plot buffers PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0); PlotIndexSetDouble(1,PLOT_EMPTY_VALUE,0); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferOpen,true); ArraySetAsSeries(BufferClose,true); //--- 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[]) { //--- Установка массивов буферов как таймсерий ArraySetAsSeries(open,true); ArraySetAsSeries(high,true); ArraySetAsSeries(low,true); ArraySetAsSeries(close,true); //--- Проверка и расчёт количества просчитываемых баров if(rates_total<4 || Point()==0) return 0; //--- Проверка и расчёт количества просчитываемых баров int limit=rates_total-prev_calculated; if(limit>1) { limit=rates_total-2; ArrayInitialize(BufferOpen,0); ArrayInitialize(BufferClose,0); } //--- Расчёт индикатора for(int i=limit; i>=0 && !IsStopped(); i--) { BufferOpen[i]=(BufferOpen[i+1]+BufferClose[i+1])/2.0; BufferClose[i]=(open[i]+high[i]+low[i]+close[i])/4.0; } //--- return value of prev_calculated for next call return(rates_total); } //+------------------------------------------------------------------+