//+------------------------------------------------------------------+ //| Butterfly.mq4 | //| Copyright © 2006, Archer Trading, LLC | //| http://www.archertrading.net | //+------------------------------------------------------------------+ #property copyright "Copyright © 2006, Archer Trading, LLC" #property link "http://www.archertrading.net" #property indicator_chart_window #property indicator_buffers 2 #property indicator_color1 Lime #property indicator_width1 3 #property indicator_color2 OrangeRed #property indicator_width2 3 //---- indicator parameters extern int ExtDepth=32; extern int ExtDeviation=3; extern int ExtBackstep=12; //---- indicator buffers double ExtMapBuffer[]; double ExtMapBuffer2[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int init() { IndicatorBuffers(2); //---- drawing settings SetIndexStyle(0,DRAW_ARROW,EMPTY,2); SetIndexArrow(0,217); SetIndexStyle(1,DRAW_ARROW,EMPTY,2); SetIndexArrow(1,218); //---- indicator buffers mapping SetIndexBuffer(0,ExtMapBuffer); SetIndexBuffer(1,ExtMapBuffer2); SetIndexEmptyValue(0,0.0); ArraySetAsSeries(ExtMapBuffer,true); ArraySetAsSeries(ExtMapBuffer2,true); //---- indicator short name IndicatorShortName("ZigZag("+ExtDepth+","+ExtDeviation+","+ExtBackstep+")"); //---- initialization done return(0); } //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ int start() { int shift, back,lasthighpos,lastlowpos; double val,res; double curlow,curhigh,lasthigh,lastlow; for(shift=Bars-ExtDepth; shift>=0; shift--) { val=Low[Lowest(NULL,0,MODE_LOW,ExtDepth,shift)]; if(val==lastlow) val=0.0; else { lastlow=val; if((Low[shift]-val)>(ExtDeviation*Point)) val=0.0; else { for(back=1; back<=ExtBackstep; back++) { res=ExtMapBuffer[shift+back]; if((res!=0)&&(res>val)) ExtMapBuffer[shift+back]=0.0; } } } ExtMapBuffer[shift]=val; //--- high val=High[Highest(NULL,0,MODE_HIGH,ExtDepth,shift)]; if(val==lasthigh) val=0.0; else { lasthigh=val; if((val-High[shift])>(ExtDeviation*Point)) val=0.0; else { for(back=1; back<=ExtBackstep; back++) { res=ExtMapBuffer2[shift+back]; if((res!=0)&&(res=0; shift--) { curlow=ExtMapBuffer[shift]; curhigh=ExtMapBuffer2[shift]; if((curlow==0)&&(curhigh==0)) continue; //--- if(curhigh!=0) { if(lasthigh>0) { if(lasthigh0) { if(lastlow>curlow) ExtMapBuffer[lastlowpos]=0; else ExtMapBuffer[shift]=0; } //--- if((curlow=0; shift--) { if(shift>=Bars-ExtDepth) ExtMapBuffer[shift]=0.0; else { res=ExtMapBuffer2[shift]; if(res!=0.0) ExtMapBuffer[shift]=res; } } }