【MQL】MTF_Fractals（マルチタイムフレームフラクタルス）

2025年7月9日

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//+------------------------------------------------------------------+
//|                                                 MTF_Fractals.mq4 |
//|                                  Copyright 2025, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+

#property copyright "Copyright 2025, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"
#property strict

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1  Red
#property indicator_color2  Red

//---- indicator parameters
input ENUM_TIMEFRAMES TimeFrame = PERIOD_CURRENT;   //　時間足

//---- indicator buffers
double ExtUpperBuffer[];
double ExtLowerBuffer[];

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
{
    SetIndexStyle(0,DRAW_ARROW);
    SetIndexBuffer(0,ExtUpperBuffer);
    SetIndexArrow(0, 236);
    ArraySetAsSeries(ExtUpperBuffer, true);
    SetIndexLabel(0,"Fractals Upper");

    SetIndexStyle(1,DRAW_ARROW);
    SetIndexBuffer(1,ExtLowerBuffer);
    SetIndexArrow(1, 236);
    ArraySetAsSeries(ExtLowerBuffer, true);
    SetIndexLabel(1,"Fractals Lower");

    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[])
{
    if (_Period > TimeFrame && TimeFrame != PERIOD_CURRENT) return -1;
    int limit = rates_total-prev_calculated-1;
    for (int i=limit; i>=0; i--)
    {
        int bar = iBarShift(NULL, TimeFrame, Time[i], false);
        if (bar == -1) continue;
        
        double upper = iFractals(NULL,TimeFrame,MODE_UPPER,bar);
        double lower = iFractals(NULL,TimeFrame,MODE_LOWER,bar);
        ExtUpperBuffer[i]=upper;
        ExtLowerBuffer[i]=lower;
    }

    return(rates_total);
}