//+------------------------------------------------------------------+ //| iS7N_PriceChannel.mq5 | //| Copyright, 2010 SHOOTER777 | //| s7n@yandex.ru | //+------------------------------------------------------------------+ #property copyright "2010, SHOOTER777" #property link "s7n@yandex.ru" //--- indicator settings #property indicator_chart_window #property indicator_buffers 3 #property indicator_plots 3 #property indicator_type1 DRAW_LINE #property indicator_type2 DRAW_LINE #property indicator_type3 DRAW_LINE #property indicator_color1 Magenta #property indicator_color2 Magenta #property indicator_color3 Magenta #property indicator_width1 2 #property indicator_width2 2 #property indicator_width3 1 #property indicator_label1 "Channel upper" #property indicator_label2 "Channel lower" #property indicator_label3 "Channel median" //--- input parameters input int InpChannelPeriod=10; // Period //--- indicator buffers double ExtHighBuffer[]; double ExtLowBuffer[]; double ExtMiddBuffer[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ void OnInit() { //--- indicator buffers mapping SetIndexBuffer(0,ExtHighBuffer,INDICATOR_DATA); SetIndexBuffer(1,ExtLowBuffer,INDICATOR_DATA); SetIndexBuffer(2,ExtMiddBuffer,INDICATOR_DATA); //--- set accuracy IndicatorSetInteger(INDICATOR_DIGITS,_Digits-1); //--- set first bar from what index will be drawn PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,InpChannelPeriod); //---- line shifts when drawing PlotIndexSetInteger(0,PLOT_SHIFT,1); PlotIndexSetInteger(1,PLOT_SHIFT,1); PlotIndexSetInteger(2,PLOT_SHIFT,1); //--- name for DataWindow and indicator label IndicatorSetString(INDICATOR_SHORTNAME,"Price Channel("+string(InpChannelPeriod)+")"); PlotIndexSetString(0,PLOT_LABEL,"Channel("+string(InpChannelPeriod)+") upper"); PlotIndexSetString(1,PLOT_LABEL,"Channel("+string(InpChannelPeriod)+") lower"); PlotIndexSetString(2,PLOT_LABEL,"Median("+string(InpChannelPeriod)+")"); //--- set drawing line empty value PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0.0); PlotIndexSetDouble(1,PLOT_EMPTY_VALUE,0.0); PlotIndexSetDouble(2,PLOT_EMPTY_VALUE,0.0); //--- initialization done } //+------------------------------------------------------------------+ //| Get highest value for range | //+------------------------------------------------------------------+ double Highest(const double &array[],int range,int fromIndex) { double res; int i; //--- res=array[fromIndex]; for(i=fromIndex;i>fromIndex-range && i>=0;i--) { if(resfromIndex-range && i>=0;i--) { if(res>array[i]) res=array[i]; } //--- return(res); } //+------------------------------------------------------------------+ //| Price Channel | //+------------------------------------------------------------------+ int OnCalculate(const int rates_total,const int prev_calculated, const datetime &Time[], const double &Open[], const double &High[], const double &Low[], const double &Close[], const long &TickVolume[], const long &Volume[], const int &Spread[]) { int i,limit; //--- check for rates if(rates_total