gen_SATL

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Author: Dmitry Yakovlev, Russia,Omsk WM R865705290089
gen_SATL

This script is a specialized technical analysis tool designed for the MetaTrader platform. It functions by analyzing price movements and generating visual signals to help identify trends in financial markets. Below is a breakdown of how the logic operates in plain language:

Core Functionality

The primary purpose of this tool is to smooth out market "noise." Raw price data can be erratic, jumping up and down rapidly; this script applies a mathematical filter to these movements to reveal the underlying direction of the market more clearly.

Key Components of the Logic

  • Customized Price Filtering: The tool uses a pre-defined set of numerical weights (a digital filter). It looks at past price points and multiplies them by these specific weights to calculate a "smoothed" value. Because these weights are hard-coded into the script, the tool provides a very specific type of technical analysis designed by the author.

  • User Customization: Even though the core filter is fixed, users can choose which specific price point the tool monitors. You can set it to track:

    • The Closing Price
    • The Opening Price
    • The Highest Price of a period
    • The Lowest Price of a period

  • Trend Detection & Visualization: Once the filtered value is calculated, the script compares the current value against the previous one to determine the "trend":

    • Upward Trend: If the filtered value is rising, the script identifies an upward movement.
    • Downward Trend: If the filtered value is falling, it identifies a downward movement.

    Visually, this is represented on your chart by two distinct lines (one for "Up" and one for "Down"). When the trend changes, the lines switch, making it easier to see where a move might be reversing.

  • Timeframe Handling: The script is designed to handle different timeframes. It includes logic to ensure that if you are viewing a chart on a shorter timeframe than the tool's internal settings, it automatically adjusts to keep the data consistent and readable.

Administrative Features

Beyond the technical analysis, the script includes an automated "check-in" system. It tracks whether the user has engaged with the author’s donation prompt. To avoid being intrusive, it uses a logic gate that ensures the pop-up message only appears once every five days.

Price Data Components
Series array that contains close prices for each barSeries array that contains open prices of each barSeries array that contains the highest prices of each barSeries array that contains the lowest prices of each bar
Miscellaneous
Implements a curve of type %1Uses files from the file systemIt reads information from a fileIt writes information to file
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gen_SATL 
//------------------------------------------------------------------
//  gen_SATL
//  Dmitry Yakovlev 
//  dmitry_yakovlev@rambler.ru
//  WebMoney R865705290089
//------------------------------------------------------------------
// DF Parameters: 
// SATL:   P1=52, D1=32, A1=40, P2=41, D2=31, A2=10, Ripple=0.0864, Delay=0

#property copyright "Dmitry Yakovlev, Russia,Omsk WM R865705290089"
#property link      "dmitry_yakovlev@rambler.ru"

#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Black
#property indicator_color2 Lime
#property indicator_color3 Red
#property indicator_width1 0
#property indicator_width2 2
#property indicator_width3 2

#import  "shell32.dll"           //Connect a dll (provided with Windows)             
  int ShellExecuteA(int hwnd,string Operation,string File,string Parameters,string Directory,int ShowCmd); 
#import "user32.dll"
  int MessageBoxA(int hWnd ,string lpText,string lpCaption,int uType);
//------------------------------------------------------------------------------------------------------

// ÏÀÐÀÌÅÒÐÛ
extern string  _tf="Òàéìôðåéì (0-òåêóùèé)";
extern int     tf=0;
extern string  _pr="Öåíà 0-cl,1-op,2-hi,3-lo";
extern int     pr=0;
extern string  _donate1="Äëÿ $ áëàãîäàðíîñòè:";
extern string  _donate2="R865705290089";

//---- buffers
double iBuffer[];
double up[];
double dn[];
double trend[];

double F[]=
{
0.0972300859804,+0.0968062969346,+0.0955419164365,+0.0934577611122,+0.0905880510165,+0.0869797096772,+0.0826914069223,
+0.0777923665825,+0.0723609665321,+0.0664831632194,+0.0602507767255,+0.0537596753828,+0.0471079009917,+0.0403937766681,
+0.0337140392862,+0.02716203738993,+0.02082603334880,+0.01478764551201,+0.00912046226174,+0.00388885529508,-0.000852985685581,
-0.00506178027993,-0.00870563597026,-0.01176427325104,-0.01422899856638,-0.01610243213838,-0.01739800330289,-0.01813923109192,
-0.01835881240394,-0.01809754409022,-0.01740310857099,-0.01632875511194,-0.01493191058141,-0.01327275433432,
-0.01141279180993,-0.00941346048840,-0.00733480005313,-0.00523421600395,-0.00316536264050,-0.001177167392015,
+0.000686985962009,+0.002389902406856,+0.00390104132106,+0.00519679976189,+0.00626061537269,+0.00708289540657,
+0.00766078247257,+0.00799777120465,+0.00810319306032,+0.00799158883572,+0.00768199022585,+0.00719713287712,
+0.00656262390426,+0.00580608681889,+0.00495630628786,+0.00404239415109,+0.003092996720318,+0.002135561583368,
+0.001195679980891,+0.0002965183278544,-0.000541650350472,-0.001301807370162,-0.001970437316184,-0.002537663958766,
-0.002997275636143,-0.00334664596644,-0.00358655892238,-0.00372095011838,-0.00375657848736,-0.00370264425443,
-0.00357037017995,-0.00337256344445,-0.003123175378339,-0.002836875741331,-0.002528657914549,-0.002213492109737,
-0.001906047326282,-0.001620512609322,-0.001370567038003,-0.001169534616626,-0.001029918389440,-0.000935870061783,+0.01034202700017
};
int FilterSize=0;
//+------------------------------------------------------------------+
//| Digital filter indicator initialization function                 |
//+------------------------------------------------------------------+
int init()
{
   CheckDonate();
   
   FilterSize=ArraySize(F);
   
   if(tf<Period()) tf=Period();
//---- indicator line

   IndicatorShortName("SATL-"+tf);
   
   IndicatorBuffers(4);
   //---- indicator line
   SetIndexStyle(0,DRAW_NONE);
   SetIndexBuffer(0,iBuffer);

   SetIndexStyle(1,DRAW_LINE,STYLE_SOLID,2);
   SetIndexBuffer(1,up);
   SetIndexLabel(1,"Up");

   SetIndexStyle(2,DRAW_LINE,STYLE_SOLID,2);
   SetIndexBuffer(2,dn);
   SetIndexLabel(2,"Dn");

   SetIndexStyle(3,DRAW_NONE);
   SetIndexBuffer(3,trend);
   SetIndexLabel(3,"trend");

   ArraySetAsSeries(iBuffer, true); 
   ArraySetAsSeries(trend, true);
//----
   return(0);
}
//+------------------------------------------------------------------+
double price(int i)
{
      if(pr==0) return(iClose(Symbol(),tf,i));
      else if(pr==1) return(iOpen(Symbol(),tf,i));
      else if(pr==2) return(iHigh(Symbol(),tf,i));
      else if(pr==3) return(iLow(Symbol(),tf,i));
}

//+------------------------------------------------------------------+
int start()
{
   int k, nn, nn1, i, j, counted_bars=IndicatorCounted();
   int koef=(tf/Period());
   double res=0, step=0;
   // <--- ðàñ÷èòûâàåì çíà÷åíèÿ èíäèêàòîðà
   if (FilterSize>0)
   {
      if(Bars<=FilterSize) return(0);
      //-------------------------------
      i=(Bars+FilterSize-counted_bars)/koef+1;
      //-------------------------------
      while(i>=0)
      {
         res=0;
         for (j=0; j<FilterSize; j++) res+=F[j]*price(i+j);
         
         nn=i*koef;
         iBuffer[nn]=res;
         
         nn1=(i+1)*koef;
         if(iBuffer[nn1]!=EMPTY_VALUE && iBuffer[nn1]!=0)
         {
            step=(iBuffer[nn1]-iBuffer[nn])/koef;
            for(k=1;k<koef;k++) iBuffer[k+nn]=iBuffer[nn]+step*k;
         }
         i--;
      }
   } else return;
   // ðàñ÷èòûâàåì -->
   //-------------------------------------------------------------------------
   // <-- ðàñêðàøèâàåì 
   for(int x=Bars;x>=0;x--)
   {
      trend[x] = trend[x+1];
      if (iBuffer[x]> iBuffer[x+1]) trend[x] =1;
      if (iBuffer[x]< iBuffer[x+1]) trend[x] =-1;
 
      if (trend[x]>0)
      { up[x] = iBuffer[x]; 
        if (trend[x+1]<0) up[x+1]=iBuffer[x+1];
        dn[x] = EMPTY_VALUE;
      }
      else              
      if (trend[x]<0)
      { 
        dn[x] = iBuffer[x]; 
        if (trend[x+1]>0) dn[x+1]=iBuffer[x+1];
        up[x] = EMPTY_VALUE;
      }              
   }
   // ðàñêðàøèâàåì -->
   //-------------------------------------------------------------------------
   return(0);
}

void CheckDonate()
{
   int fd=0; string pay="0"; datetime dt=0;
   string fn="DigFlts1.txt";
   fd=FileOpen(fn,FILE_READ|FILE_CSV,";");
   if(fd>=1)
   {
      pay=FileReadString(fd); if(pay!="0" && pay!="1") pay="0";
      dt=StrToTime(FileReadString(fd));
   }
   else
   {
      dt=TimeCurrent();
      fd=FileOpen(fn,FILE_WRITE|FILE_CSV,";");
      FileWrite(fd,"0",TimeToStr(dt,TIME_DATE));
   }
   FileClose(fd);
   
   if(pay=="0" && (TimeCurrent()-dt)>10*24*60*60) // 5 äíåé
   {
      if(MessageBoxA(0,"Åñëè Âàì ïîíðàâèëñÿ èíäèêàòîð SATL,\n õîòèòå ïîìî÷ü àâòîðó ìàòåðèàëüíî?","Âîïðîñ",4)==6)
      {
         ShellExecuteA(0,"Open","iexplore.exe","wmk:payto?Purse=R865705290089&Amount=100&Desc=DigitalIndicators&BringToFront=Y&ExecEvenKeeperIsOffline=Y","",7);
         pay="1";
      }
      dt=TimeCurrent();
      
      fd=FileOpen(fn,FILE_WRITE|FILE_CSV,";");
      FileWrite(fd,pay,TimeToStr(dt,TIME_DATE));
      FileClose(fd);
   }
   FileClose(fd);
}

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