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NB-channel_1.mq4

Time: 2014-11-06 | Download file:NB-channel_1.mq4

//+------------------------------------------------------------------+
//|                                               NB_SHI_Channel.mq4 |
//|                                     Copyright © 2005, Nick Bilak |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, Nick Bilak"
#property link      ""

#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Red
//#property indicator_color2 Green
//#property indicator_color3 Green
//#property indicator_color4 Green
double buf1[];
double buf2[];
double buf3[];
double ExtMapBuffer1[];
//---- input parameters
extern int       AllBars=240;
extern int       BarsForFract=0;
int CurrentBar=0;
double Step=0;
int B1=-1,B2=-1;
int UpDown=0;
double P1=0,P2=0,PP=0;
int i=0,AB=300,BFF=0;
int ishift=0;
double iprice=0;
datetime T1,T2;

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0,DRAW_ARROW);
   SetIndexArrow(0,164);
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexEmptyValue(0,0.0);
   SetIndexStyle(1,DRAW_LINE);
   SetIndexBuffer(1,buf1);
   SetIndexStyle(2,DRAW_LINE);
   SetIndexBuffer(2,buf2);
   SetIndexStyle(3,DRAW_LINE);
   SetIndexBuffer(3,buf3);
//----
	
	
   return(0);
  }
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 
   
//----
   return(0);
  }

void DelObj()
{
	ObjectDelete("TL1");
	ObjectDelete("TL2");
	ObjectDelete("MIDL");
}

//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
//  if( Time[0]>= StrToTime("2005.8.19 06:00")) return(0);
   int    counted_bars=IndicatorCounted();
//---- 
	if ((AllBars==0) || (Bars0) 
		BFF=BarsForFract; 
	else
	{
		switch (Period())
		{
			case 1: BFF=12; break;
			case 5: BFF=48; break;
			case 15: BFF=24; break;
			case 30: BFF=24; break;
			case 60: BFF=12; break;
			case 240: BFF=15; break;
			case 1440: BFF=10; break;
			case 10080: BFF=6; break;
			default: DelObj(); return(-1); break;
		}
	}
	CurrentBar=2; 
	B1=-1; B2=-1; UpDown=0;
	while(((B1==-1) || (B2==-1)) && (CurrentBar-1) && (CurrentBar==Highest(Symbol(),Period(),MODE_HIGH,BFF*2+1,CurrentBar-BFF))) 
		{
			if(UpDown==0) { UpDown=1; B1=CurrentBar; P1=High[B1]; }
			else { B2=CurrentBar; P2=High[B2]; }
		}
		CurrentBar++;
	}
	if((B1==-1) || (B2==-1)) {DelObj(); return(-1);} 
	Step=(P2-P1)/(B2-B1);
	P1=P1-B1*Step; B1=0;
	ishift=0; iprice=0;
	if(UpDown==1)
	{ 
		PP=Low[2]-2*Step;
		for(i=3;i<=B2;i++) 
		{
			if(Low[i]P1) {ishift=0; iprice=P1;}
		if(High[1]>P1+Step) {ishift=1; iprice=P1+Step;}
	} 
	else
	{ 
		PP=High[2]-2*Step;
		for(i=3;i<=B2;i++) 
		{
			if(High[i]>PP+Step*i) { PP=High[i]-i*Step;}
		}
		if(Low[0]PP) {ishift=0; iprice=PP;}
		if(High[1]>PP+Step) {ishift=1; iprice=PP+Step;}
	}
	P2=P1+AB*Step;
	T1=Time[B1]; T2=Time[AB];

	if(iprice!=0) ExtMapBuffer1[ishift]=iprice;
	DelObj();
	ObjectCreate("TL1",OBJ_TREND,0,T2,PP+Step*AB,T1,PP); 
		ObjectSet("TL1",OBJPROP_COLOR,Lime); 
		ObjectSet("TL1",OBJPROP_WIDTH,2); 
		ObjectSet("TL1",OBJPROP_STYLE,STYLE_SOLID); 
	ObjectCreate("TL2",OBJ_TREND,0,T2,P2,T1,P1); 
		ObjectSet("TL2",OBJPROP_COLOR,Lime); 
		ObjectSet("TL2",OBJPROP_WIDTH,2); 
		ObjectSet("TL2",OBJPROP_STYLE,STYLE_SOLID); 
	ObjectCreate("MIDL",OBJ_TREND,0,T2,(P2+PP+Step*AB)/2,T1,(P1+PP)/2);
		ObjectSet("MIDL",OBJPROP_COLOR,Lime); 
		ObjectSet("MIDL",OBJPROP_WIDTH,1); 
		ObjectSet("MIDL",OBJPROP_STYLE,STYLE_DOT);
	
	double cbars=AB-B1;
	double startPP=PP+Step*AB, endPP=PP;
	double startP1=P2, endP1=P1;
	double startP2=(P2+PP+Step*AB)/2, endP2=(P1+PP)/2; 
	double deltaPP=(startPP-endPP)/cbars;
	double deltaP1=(startP1-endP1)/cbars;
	double deltaP2=(startP2-endP2)/cbars;
   buf1[AB]=startPP;
   buf2[AB]=startP1;
   buf3[AB]=startP2;
	for (int i=AB-1; i>=0; i--) {
      buf1[i]=buf1[i+1]-deltaPP;
      buf2[i]=buf2[i+1]-deltaP1;
      buf3[i]=buf3[i+1]-deltaP2;
	}
//----
   return(0);
  }
//+---------------------------------------------------------------

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