//+------------------------------------------------------------------+ //| GannSwing.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 "Gann Swing indicator" #property indicator_chart_window #property indicator_buffers 3 #property indicator_plots 1 //--- plot GannSwing #property indicator_label1 "Gann Swing" #property indicator_type1 DRAW_SECTION #property indicator_color1 clrRed #property indicator_style1 STYLE_SOLID #property indicator_width1 2 //--- indicator buffers double BufferGS[]; double BufferUS[]; double BufferDS[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- indicator buffers mapping SetIndexBuffer(0,BufferGS,INDICATOR_DATA); SetIndexBuffer(1,BufferUS,INDICATOR_CALCULATIONS); SetIndexBuffer(2,BufferDS,INDICATOR_CALCULATIONS); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"Gann Swing"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferGS,true); ArraySetAsSeries(BufferUS,true); ArraySetAsSeries(BufferDS,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(high,true); ArraySetAsSeries(low,true); //--- Проверка и расчёт количества просчитываемых баров if(rates_total<5) return 0; //--- Проверка и расчёт количества просчитываемых баров int limit=rates_total-prev_calculated; if(limit>0) { limit=rates_total-4; ArrayInitialize(BufferGS,EMPTY_VALUE); ArrayInitialize(BufferUS,0); ArrayInitialize(BufferDS,0); } //--- Подготовка данных for(int i=limit; i>=0 && !IsStopped(); i--) { ResetBuffers(i); //--- 1.Two consecutive Higher High candles indicate Upswing if(high[i]>high[i+1] && high[i+1]>high[i+2]) { BufferUS[i]=1; // Up } //--- 2.Two consecutive Lower Low candles indicate Downswing if(low[i]high[i+1] && low[i]>=low[i+1]) { BufferUS[i]=1; // Up } //--- 5. If the next bar has a lower high (or same high) and a //--- lower low when compared to the previous bar, then the swing line goes down connecting the low of the next bar if(BufferDS[i]==0 && high[i]<=high[i+1] && low[i]=0 && !IsStopped(); i--) { if(BufferUS[i]==1) { if(swing_dir==1) BufferGS[i]=high[i]; else if(swing_dir==-1) { BufferGS[i]=high[i]; swing_dir=1; } else { swing_dir=1; BufferGS[i]=high[i]; } } else if(BufferDS[i]==1) { if(swing_dir==-1) BufferGS[i]=low[i]; else if(swing_dir==1) { BufferGS[i]=low[i]; swing_dir=-1; } else { swing_dir=-1; BufferGS[i]=low[i]; } } else { if(high[i+1]>high[i+2] && low[i+1]high[i+1] && low[i]>=low[i+1]) { if(swing_dir==-1) BufferGS[i]=low[i]; else if(swing_dir==1) { BufferGS[i]=low[i]; swing_dir=-1; } } else if(high[i]<=high[i+1] && low[i]=0 && !IsStopped(); i--) { if(BufferGS[i]==high[i]) { if(last==1) BufferGS[last_index]=EMPTY_VALUE; last=1; last_index=i; } if(BufferGS[i]==low[i]) { if(last==-1) BufferGS[last_index]=EMPTY_VALUE; last=-1; last_index=i; } } //--- return value of prev_calculated for next call return(rates_total); } //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ void ResetBuffers(const int shift) { BufferGS[shift]=EMPTY_VALUE; BufferUS[shift]=BufferDS[shift]=0; } //+------------------------------------------------------------------+