//+------------------------------------------------------------------+
//| at_Itp(t)Env.mq4 |
//| at_Itp(t): Copyright © 2005, MetaQuotes Software Corp. |
//| http://www.metaquotes.net |
//| Envelope: Copyright © 2005, Nikolay Kositsin |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, MetaQuotes Software Corp."
#property link "http://www.metaquotes.net"
//----
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Lime
#property indicator_color2 Blue
#property indicator_color3 Red
//----
extern int hours=4;
extern int s=10;
extern int cb=1000;
extern double Envelope_Shift=0.20;
extern int Shift=0;
double ci[];
double UperBuffer [];
double DownBuffer [];
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
int init()
{
//---- drawing settings
SetIndexStyle(0,DRAW_LINE);
SetIndexStyle(1,DRAW_LINE);
SetIndexStyle(2,DRAW_LINE);
//---- IndexShift
SetIndexShift(0,Shift);
SetIndexShift(1,Shift);
SetIndexShift(2,Shift);
//----
IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS));
//----
SetIndexLabel (0, "Envelope+");
SetIndexLabel (1, "at_Itp(t)");
SetIndexLabel (2, "Envelope-");
//---- indicator buffers
IndicatorBuffers(3);
//---- indicator buffers mapping
SetIndexBuffer (0, UperBuffer);
SetIndexBuffer (1, ci);
SetIndexBuffer (2, DownBuffer);
//----
return(0);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
int start()
{
// int counted_bars=IndicatorCounted();
int i,x,m,pt,aa,bb,cc;
//----------------------------
pt=hours*60/Period();
//-----------------------
for(m=0; m<=s; m++)
{
i=0;
while(i<=cb)
{
if (m==0) { ci[cb+pt]=Close[cb+pt]; ci[i]=Close[i]; ci[cb+2*pt]=Close[cb+2*pt];}
if (m!=0 & m!=s) { ci[i+pt]=0.5*(ci[i]+ci[i+2*pt]); ci[0]=0.5*(ci[0]+ci[pt]); ci[cb+2*pt]=0.5*(ci[cb+2*pt]+ci[cb+pt]); }
if (m==s) { aa=i; bb=i+pt; cc=i+2*pt;
for(x=i; x<=i+pt-1; x++) {ci[x]=ci[aa]*((x-bb)*(x-cc))/((aa-bb)*(aa-cc))+ci[bb]*((x-aa)*(x-cc))/((bb-aa)*(bb-cc))+ci[cc]*((x-aa)*(x-bb))/((cc-aa)*(cc-bb));}
}
i=i+pt;
}
}
//+------------------------------------------------------------------+
//| |
//| Input indicator buffer: ci. |
//| Output indicator buffers: UperBuffer, DownBuffer. |
//+------------------------------------------------------------------+ |
int ExtCountedBars=IndicatorCounted();
int r; r=Bars-ExtCountedBars-1;
while(r>=0)
{
UperBuffer[r]= ci[r]*(1+Envelope_Shift/100);
DownBuffer[r]= ci[r]/(1+Envelope_Shift/100);
r--;
}
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Series array that contains close prices for each bar
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features: