158 lines
12 KiB
Plaintext
158 lines
12 KiB
Plaintext
//+------------------------------------------------------------------+
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//| Slope_Direction_Line.mq5 |
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//| Copyright 2018, MetaQuotes Software Corp. |
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//| https://mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2018, MetaQuotes Software Corp."
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#property link "https://mql5.com"
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#property version "1.00"
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#property description "Slope Direction Line indicator"
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#property indicator_chart_window
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#property indicator_buffers 6
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#property indicator_plots 2
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//--- plot SDL
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#property indicator_label1 "SDL"
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#property indicator_type1 DRAW_COLOR_LINE
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#property indicator_color1 clrGreen,clrRed,clrDarkGray
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 2
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//--- plot Trend
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#property indicator_label2 "Trend direction"
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#property indicator_type2 DRAW_LINE
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#property indicator_color2 clrNONE
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#property indicator_style2 STYLE_SOLID
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#property indicator_width2 1
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//--- input parameters
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input uint InpPeriod = 80; // Period
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input ENUM_MA_METHOD InpMethod = MODE_EMA; // Method
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input ENUM_APPLIED_PRICE InpAppliedPrice = PRICE_CLOSE; // Applied price
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//--- indicator buffers
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double BufferSDL[];
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double BufferColors[];
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double BufferTrend[];
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double BufferMAP[];
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double BufferMAP2[];
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double BufferRAW[];
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//--- global variables
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int period_ma;
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int period2;
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int periodSqrt;
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int handle_maP;
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int handle_maP2;
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int weight_sum;
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//--- includes
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#include <MovingAverages.mqh>
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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//--- set global variables
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period_ma=int(InpPeriod<2 ? 2 : InpPeriod);
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period2=(int)floor(period_ma/2.0);
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periodSqrt=(int)floor(sqrt(period_ma));
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//--- indicator buffers mapping
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SetIndexBuffer(0,BufferSDL,INDICATOR_DATA);
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SetIndexBuffer(1,BufferColors,INDICATOR_COLOR_INDEX);
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SetIndexBuffer(2,BufferTrend,INDICATOR_DATA);
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SetIndexBuffer(3,BufferMAP,INDICATOR_CALCULATIONS);
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SetIndexBuffer(4,BufferMAP2,INDICATOR_CALCULATIONS);
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SetIndexBuffer(5,BufferRAW,INDICATOR_CALCULATIONS);
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//--- setting indicator parameters
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IndicatorSetString(INDICATOR_SHORTNAME,"SDL ("+(string)period_ma+")");
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IndicatorSetInteger(INDICATOR_DIGITS,Digits());
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//--- setting buffer arrays as timeseries
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ArraySetAsSeries(BufferSDL,true);
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ArraySetAsSeries(BufferColors,true);
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ArraySetAsSeries(BufferTrend,true);
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ArraySetAsSeries(BufferMAP,true);
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ArraySetAsSeries(BufferMAP2,true);
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ArraySetAsSeries(BufferRAW,true);
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//--- create MA's handles
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ResetLastError();
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handle_maP=iMA(NULL,PERIOD_CURRENT,period_ma,0,InpMethod,InpAppliedPrice);
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if(handle_maP==INVALID_HANDLE)
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{
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Print("The iMA(",(string)period_ma,") object was not created: Error ",GetLastError());
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return INIT_FAILED;
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}
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handle_maP2=iMA(NULL,PERIOD_CURRENT,period2,0,InpMethod,InpAppliedPrice);
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if(handle_maP2==INVALID_HANDLE)
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{
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Print("The iMA(",(string)period2,") object was not created: Error ",GetLastError());
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return INIT_FAILED;
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}
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//---
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| Custom indicator iteration function |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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//--- Проверка и расчёт количества просчитываемых баров
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if(rates_total<fmax(period_ma,4)) return 0;
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//--- Проверка и расчёт количества просчитываемых баров
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int limit=rates_total-prev_calculated;
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if(limit>1)
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{
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limit=rates_total-2;
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ArrayInitialize(BufferSDL,EMPTY_VALUE);
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ArrayInitialize(BufferTrend,0);
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ArrayInitialize(BufferMAP,0);
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ArrayInitialize(BufferMAP2,0);
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ArrayInitialize(BufferRAW,0);
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}
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//--- Подготовка данных
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int count=(limit>1 ? rates_total : 1),copied=0;
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copied=CopyBuffer(handle_maP,0,0,count,BufferMAP);
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if(copied!=count) return 0;
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copied=CopyBuffer(handle_maP2,0,0,count,BufferMAP2);
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if(copied!=count) return 0;
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for(int i=limit; i>=0 && !IsStopped(); i--)
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{
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BufferRAW[i]=2.0*BufferMAP2[i]-BufferMAP[i];
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}
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switch(InpMethod)
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{
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case MODE_EMA : if(ExponentialMAOnBuffer(rates_total,prev_calculated,period_ma,periodSqrt,BufferRAW,BufferSDL)==0) return 0; break;
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case MODE_SMMA : if(SmoothedMAOnBuffer(rates_total,prev_calculated,period_ma,periodSqrt,BufferRAW,BufferSDL)==0) return 0; break;
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case MODE_LWMA : if(LinearWeightedMAOnBuffer(rates_total,prev_calculated,period_ma,periodSqrt,BufferRAW,BufferSDL,weight_sum)==0) return 0; break;
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//---MODE_SMA
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default : if(SimpleMAOnBuffer(rates_total,prev_calculated,period_ma,periodSqrt,BufferRAW,BufferSDL)==0) return 0; break;
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}
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//--- Расчёт индикатора
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for(int i=limit; i>=0 && !IsStopped(); i--)
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{
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BufferTrend[i]=(BufferSDL[i]>BufferSDL[i+1] ? 1 : BufferSDL[i]<BufferSDL[i+1] ? -1 : BufferTrend[i+1]);
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BufferColors[i]=2;
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if(BufferTrend[i]>0)
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{
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BufferColors[i]=0;
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if(BufferTrend[i+1]<0)
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BufferColors[i+1]=0;
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}
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else
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{
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BufferColors[i]=1;
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if(BufferTrend[i+1]>0)
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BufferColors[i+1]=1;
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}
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}
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//--- return value of prev_calculated for next call
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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