centerofgravity_v1

//+---------------------------------------------------------------------+
//|                                                 CenterOfGravity.mq4 |
//|                         Copyright © 2007, MetaQuotes Software Corp. |
//|                                           http://www.metaquotes.net |
//+---------------------------------------------------------------------+ 
//| Äëÿ ðàáîòû  èíäèêàòîðà  ñëåäóåò  ïîëîæèòü ôàéë SmoothAlgorithms.mqh |
//| â ïàïêó (äèðåêòîðèþ): êàòàëîã_äàííûõ_òåðìèíàëà\\MQL5\Include        |
//+---------------------------------------------------------------------+
#property copyright "Copyright © 2007, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"
//---- íîìåð âåðñèè èíäèêàòîðà
#property version   "1.11"
//---- îòðèñîâêà èíäèêàòîðà â îòäåëüíîì îêíå
#property indicator_separate_window
//---- äëÿ ðàñ÷¸òà è îòðèñîâêè èíäèêàòîðà èñïîëüçîâàíî òðè áóôåðà
#property indicator_buffers 3
//---- èñïîëüçîâàíî äâà ãðàôè÷åñêèõ ïîñòðîåíèÿ
#property indicator_plots   2
//+----------------------------------------------+
//|  Ïàðàìåòðû îòðèñîâêè èíäèêàòîðà              |
//+----------------------------------------------+
//---- îòðèñîâêà èíäèêàòîðà 1 â âèäå òð¸õöâåòíîé ëèíèè
#property indicator_type1 DRAW_COLOR_LINE
//---- â êà÷åñòâå öâåòîâ òð¸õöâåòíîé ëèíèè èñïîëüçîâàíû
#property indicator_color1 clrGray,clrLime,clrRed
//---- ëèíèÿ èíäèêàòîðà 1 - íåïðåðûâíàÿ êðèâàÿ
#property indicator_style1  STYLE_SOLID
//---- òîëùèíà ëèíèè èíäèêàòîðà 1 ðàâíà 1
#property indicator_width1  1
//---- îòîáðàæåíèå ìåòêè èíäèêàòîðà 1
#property indicator_label1  "Center of Gravity"
//+-----------------------------------+
//| Ïàðàìåòðû îòðèñîâêè èíäèêàòîðà    |
//+-----------------------------------+
//---- îòðèñîâêà èíäèêàòîðà 2 â âèäå ëèíèè
#property indicator_type2   DRAW_LINE
//---- â êà÷åñòâå öâåòà ëèíèè èíäèêàòîðà èñïîëüçîâàí ñèíèé öâåò
#property indicator_color2  clrBlue
//---- ëèíèÿ èíäèêàòîðà 2 - íåïðåðûâíàÿ êðèâàÿ
#property indicator_style2  STYLE_SOLID
//---- òîëùèíà ëèíèè èíäèêàòîðà 2 ðàâíà 1
#property indicator_width2  1
//---- îòîáðàæåíèå ìåòêè èíäèêàòîðà 2
#property indicator_label2  "Signal Line"
//---- ñòèëü ëèíèè - øòðèõïóíêòèðíàÿ êðèâàÿ
#property indicator_style2 STYLE_DASHDOTDOT
//+-----------------------------------+
//| Îáúÿâëåíèå ïåðå÷èñëåíèé           |
//+-----------------------------------+
enum Applied_price_ //òèï êîíñòàíòû
  {
   PRICE_CLOSE_ = 1,     //PRICE_CLOSE
   PRICE_OPEN_,          //PRICE_OPEN
   PRICE_HIGH_,          //PRICE_HIGH
   PRICE_LOW_,           //PRICE_LOW
   PRICE_MEDIAN_,        //PRICE_MEDIAN
   PRICE_TYPICAL_,       //PRICE_TYPICAL
   PRICE_WEIGHTED_,      //PRICE_WEIGHTED
   PRICE_SIMPL_,         //PRICE_SIMPL_
   PRICE_QUARTER_,       //PRICE_QUARTER_
   PRICE_TRENDFOLLOW0_,  //TrendFollow_1 Price 
   PRICE_TRENDFOLLOW1_,  //TrendFollow_2 Price 
   PRICE_DEMARK_         //Demark Price
  };
//+-----------------------------------+
//| Âõîäíûå ïàðàìåòðû èíäèêàòîðà      |
//+-----------------------------------+
input uint Period_=10; // Ïåðèîä óñðåäíåíèÿ èíäèêàòîðà
input uint SmoothPeriod=3; // Ïåðèîä ñãëàæèâàíèÿ ñèãíàëüíîé ëèíèè
input ENUM_MA_METHOD MA_Method_=MODE_SMA; // Ìåòîä óñðåäíåíèÿ ñèãíàëüíîé ëèíèè
input Applied_price_ AppliedPrice=PRICE_CLOSE_;// Öåíîâàÿ êîíñòàíòà
//---- îáúÿâëåíèå äèíàìè÷åñêèõ ìàññèâîâ, êîòîðûå áóäóò â 
//---- äàëüíåéøåì èñïîëüçîâàíû â êà÷åñòâå èíäèêàòîðíûõ áóôåðîâ
double Ext1Buffer[];
double Ext2Buffer[];
double ColorExt2Buffer[];
//---- îáúÿâëåíèå öåëî÷èñëåíûõ ïåðåìåííûõ íà÷àëà îòñ÷¸òà äàííûõ
int min_rates_total;
//---
#include <SmoothAlgorithms.mqh> 
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+  
void OnInit()
  {
//---- èíèöèàëèçàöèÿ êîíñòàíò
   min_rates_total=int(Period_+1+SmoothPeriod+2);
//---- ïðåâðàùåíèå äèíàìè÷åñêîãî ìàññèâà MAMABuffer â èíäèêàòîðíûé áóôåð
   SetIndexBuffer(0,Ext1Buffer,INDICATOR_DATA);
//---- îñóùåñòâëåíèå ñäâèãà íà÷àëà îòñ÷¸òà îòðèñîâêè èíäèêàòîðà
   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total+1);
//---- ïðåâðàùåíèå äèíàìè÷åñêîãî ìàññèâà â öâåòîâîé, èíäåêñíûé áóôåð   
   SetIndexBuffer(1,ColorExt2Buffer,INDICATOR_COLOR_INDEX);
//---- ïðåâðàùåíèå äèíàìè÷åñêîãî ìàññèâà FAMABuffer â èíäèêàòîðíûé áóôåð
   SetIndexBuffer(2,Ext2Buffer,INDICATOR_DATA);
//---- îñóùåñòâëåíèå ñäâèãà íà÷àëà îòñ÷¸òà îòðèñîâêè èíäèêàòîðà
   PlotIndexSetInteger(1,PLOT_DRAW_BEGIN,min_rates_total+1);
//---- èíèöèàëèçàöèè ïåðåìåííîé äëÿ êîðîòêîãî èìåíè èíäèêàòîðà
   string shortname;
   StringConcatenate(shortname,"Center of Gravity(",Period_,")");
//---- ñîçäàíèå èìåíè äëÿ îòîáðàæåíèÿ â îòäåëüíîì ïîäîêíå è âî âñïëûâàþùåé ïîäñêàçêå
   IndicatorSetString(INDICATOR_SHORTNAME,shortname);
//---- îïðåäåëåíèå òî÷íîñòè îòîáðàæåíèÿ çíà÷åíèé èíäèêàòîðà
   IndicatorSetInteger(INDICATOR_DIGITS,0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,    // êîëè÷åñòâî èñòîðèè â áàðàõ íà òåêóùåì òèêå
                const int prev_calculated,// êîëè÷åñòâî èñòîðèè â áàðàõ íà ïðåäûäóùåì òèêå
                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[])
  {
//---- ïðîâåðêà êîëè÷åñòâà áàðîâ íà äîñòàòî÷íîñòü äëÿ ðàñ÷¸òà
   if(rates_total<min_rates_total) return(0);
//---- îáúÿâëåíèå ïåðåìåííûõ ñ ïëàâàþùåé òî÷êîé  
   double price_,sma,lwma;
//---- îáúÿâëåíèå öåëî÷èñëåííûõ ïåðåìåííûõ
   int first1,first2,first3,bar;
   static int startbar;
//---- èíèöèàëèçàöèÿ èíäèêàòîðà â áëîêå OnCalculate()
   if(prev_calculated>rates_total || prev_calculated<=0)// ïðîâåðêà íà ïåðâûé ñòàðò ðàñ÷¸òà èíäèêàòîðà
     {
      first1=0; // ñòàðòîâûé íîìåð äëÿ ðàñ÷¸òà âñåõ áàðîâ ïåðâîãî öèêëà
      first2=int(Period_+1); // ñòàðòîâûé íîìåð äëÿ ðàñ÷¸òà âñåõ áàðîâ ñèãíàëüíîé ëèíèè
      first3=int(Period_+SmoothPeriod+3); // ñòàðòîâûé íîìåð äëÿ ðàñ÷¸òà âñåõ áàðîâ öèêëà ðàñêðàñêè
      startbar=int(Period_+1);
     }
   else // ñòàðòîâûé íîìåð äëÿ ðàñ÷¸òà íîâûõ áàðîâ
     {
      first1=prev_calculated-1;
      first2=first1;
      first3=first1;
     }
//---- îáúÿâëåíèå ïåðåìåííûõ êëàññà Moving_Average
   static CMoving_Average MA,LWMA,SIGN;
//---- îñíîâíîé öèêë ðàñ÷¸òà ñðåäíåé ëèíèè êàíàëà
   for(bar=first1; bar<rates_total; bar++)
     {
      //---- Âûçîâ ôóíêöèè PriceSeries äëÿ ïîëó÷åíèÿ âõîäíîé öåíû Series
      price_=PriceSeries(AppliedPrice,bar,open,low,high,close);
      //----
      sma=MA.MASeries(0,prev_calculated,rates_total,Period_,MODE_SMA,price_,bar,false);
      lwma=LWMA.MASeries(0,prev_calculated,rates_total,Period_,MODE_LWMA,price_,bar,false);
      //----
      Ext1Buffer[bar]=sma*lwma/_Point;
      Ext2Buffer[bar]=SIGN.MASeries(startbar,prev_calculated,rates_total,SmoothPeriod,MA_Method_,Ext1Buffer[bar],bar,false);
     }
//---- îñíîâíîé öèêë ðàñêðàñêè ñèãíàëüíîé ëèíèè
   for(bar=first3; bar<rates_total; bar++)
     {
      ColorExt2Buffer[bar]=0;
      if(Ext1Buffer[bar]<Ext2Buffer[bar])
         ColorExt2Buffer[bar]=2;
      else ColorExt2Buffer[bar]=1;
     }
//----
   return(rates_total);
  }
//+------------------------------------------------------------------+