GPM - Geometric Projection Method: Decoding Through Trendlines

//+------------------------------------------------------------------+
//|                                               GPM_Confluence.mq5 |
//|                                  Copyright 2026, AI Trading Corp|
//|                                             https://mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2026, AI Trading Corp"
#property link      "https://mql5.com"
#property version   "1.00"
#property indicator_chart_window
//--- Input parameters
input int      InpDepth    = 12;   // ZigZag Depth
input int      InpDeviation= 5;    // ZigZag Deviation
input int      InpBackstep = 3;    // ZigZag Backstep
input color    InpFiboColor= clrGold; // Fibonacci Color
input color    InpLineColor= clrAqua; // Trendline Color
//--- Global handles and variables
int            zzHandle;
datetime       lastBarTime;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
{
   //--- Get handle for built-in ZigZag indicator to find structural swings
   zzHandle = iCustom(_Symbol, _Period, "Examples\\ZigZag", InpDepth, InpDeviation, InpBackstep);
   if(zzHandle == INVALID_HANDLE)
   {
      Print("Failed to create ZigZag handle.");
      return(INIT_FAILED);
   }
   lastBarTime = 0;
   return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
   //--- Clean up chart objects on removal
   ObjectDelete(0, "GPM_Fibo");
   ObjectDelete(0, "GPM_Trendline");
}
//+------------------------------------------------------------------+
//| 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[])
{
   //--- Only recalculate on a new bar to optimize performance
   if(time[0] == lastBarTime) return(rates_total);
   lastBarTime = time[0];
   //--- Arrays to hold the recent structure points
   double zzBuffer[];
   ArraySetAsSeries(zzBuffer, true);
   
   //--- Copy ZigZag data (need enough bars to find 3 swings)
   int copied = CopyBuffer(zzHandle, 0, 0, 300, zzBuffer);
   if(copied <= 0) return(rates_total);
   int pointCount = 0;
   datetime pTime[3];
   double pPrice[3];
   //--- Loop backward through the chart arrays to find the last 3 swing points
   for(int i = 0; i < copied && pointCount < 3; i++)
   {
      if(zzBuffer[i] > 0.0)
      {
         int barIndex = i; 
         pTime[pointCount]  = time[barIndex];
         pPrice[pointCount] = zzBuffer[i];
         pointCount++;
      }
   }
   //--- If 3 valid macro points are found, project the GPM geometry
   if(pointCount == 3)
   {
      //--- Clear previous frames
      ObjectDelete(0, "GPM_Fibo");
      ObjectDelete(0, "GPM_Trendline");
      //--- 1. Draw Fibonacci Retracement on the most recent completed swing leg (Point 2 to Point 1)
      if(ObjectCreate(0, "GPM_Fibo", OBJ_FIBO, 0, pTime[2], pPrice[2], pTime[1], pPrice[1]))
      {
         ObjectSetInteger(0, "GPM_Fibo", OBJPROP_COLOR, InpFiboColor);
         ObjectSetInteger(0, "GPM_Fibo", OBJPROP_WIDTH, 1);
         ObjectSetInteger(0, "GPM_Fibo", OBJPROP_BACK, true);
         // Enable common key GPM levels
         ObjectSetDouble(0, "GPM_Fibo", OBJPROP_LEVELVALUE, 0, 0.382);
         ObjectSetDouble(0, "GPM_Fibo", OBJPROP_LEVELVALUE, 1, 0.500);
         ObjectSetDouble(0, "GPM_Fibo", OBJPROP_LEVELVALUE, 2, 0.618);
      }
      //--- 2. Draw Geometric Trendline connecting outer market structure (Point 2 to Point 0)
      if(ObjectCreate(0, "GPM_Trendline", OBJ_TREND, 0, pTime[2], pPrice[2], pTime[0], pPrice[0]))
      {
         ObjectSetInteger(0, "GPM_Trendline", OBJPROP_COLOR, InpLineColor);
         ObjectSetInteger(0, "GPM_Trendline", OBJPROP_WIDTH, 2);
         ObjectSetInteger(0, "GPM_Trendline", OBJPROP_RAY_RIGHT, true); // Project line forward into empty space
      }
      
      ChartRedraw();
   }
   return(rates_total);
}

Quoting JBRolim

Disliked

# GPM - Geometric Projection Method ### Decoding Price Through Trendlines, Fibonacci and Market Geometry ## Welcome to the GPM - Geometric Projection Method Thread Before anything else, respect is essential. Every trader is welcome here, regardless of experience level. However, insults, personal attacks, trolling, discrimination, political discussions, or any form of toxic behavior will not be tolerated. This thread is intended to be a professional environment focused on learning, sharing ideas, and improving as traders....

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Quoting PatienceFx

Disliked

To capture the core GPM concept—finding confluence zones where Trendlines and Fibonacci levels intersect—we can code a MetaTrader 5 (MT5) custom indicator in MQL5. Because computer algorithms cannot easily replicate subjective human trendline drawing, this indicator uses an objective mathematical approach (ZigZag swings) to automatically detect recent peaks/troughs, project a Fibonacci Retracement, and draw an active trendline to highlight the GPM Confluence Zone. MQL5 Custom Indicator Code Save this code in your MT5 directory under MQL5/Indicators/GPM_Confluence.mq5....

Ignored

Quoting PatienceFx

Disliked

[T]he author believes price movements follow an underlying structure rather than moving randomly.....

Ignored