Discussão do artigo "Explorando as possibilidades de criar gráficos de velas multicoloridas"
//+------------------------------------------------------------------+ //| Color Candles.mq5 | //| Copyright 2020, Samuel Manoel de Souza | //| https://www.mql5.com/pt/users/samuelmnl | //+------------------------------------------------------------------+ #property copyright "Copyright 2020, Samuel Manoel de Souza" #property link "https://www.mql5.com/pt/users/samuelmnl" #property version "1.00" #property indicator_chart_window #property indicator_buffers 12 #property indicator_plots 3 //--- plot bull #property indicator_label1 "bull" #property indicator_type1 DRAW_CANDLES #property indicator_color1 clrGreen,clrBlack,clrGreen #property indicator_style1 STYLE_SOLID #property indicator_width1 1 //--- plot bear #property indicator_label2 "bear" #property indicator_type2 DRAW_CANDLES #property indicator_color2 clrRed,clrBlack,clrRed #property indicator_style2 STYLE_SOLID #property indicator_width2 1 //--- plot range #property indicator_label3 "wait" #property indicator_type3 DRAW_CANDLES #property indicator_color3 clrGold,clrBlack,clrGold #property indicator_style3 STYLE_SOLID #property indicator_width3 1 //--- indicator buffers double bullBuffer1[]; double bullBuffer2[]; double bullBuffer3[]; double bullBuffer4[]; double bearBuffer1[]; double bearBuffer2[]; double bearBuffer3[]; double bearBuffer4[]; double rangeBuffer1[]; double rangeBuffer2[]; double rangeBuffer3[]; double rangeBuffer4[]; input int inpShift = 0; //Indicator Shift input int inpBlue = 10;//Blue Shift input int inpRed = 20; //Red Shift //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { if(inpBlue <= 0) { Alert("Blue Shift must be greater then 0!"); return INIT_PARAMETERS_INCORRECT; } if(inpRed <= inpBlue) { Alert("Red Shift must be greater then Blue Shift!"); return INIT_PARAMETERS_INCORRECT; } //--- indicator buffers mapping SetIndexBuffer(0, bullBuffer1, INDICATOR_DATA); SetIndexBuffer(1, bullBuffer2, INDICATOR_DATA); SetIndexBuffer(2, bullBuffer3, INDICATOR_DATA); SetIndexBuffer(3, bullBuffer4, INDICATOR_DATA); SetIndexBuffer(4, bearBuffer1, INDICATOR_DATA); SetIndexBuffer(5, bearBuffer2, INDICATOR_DATA); SetIndexBuffer(6, bearBuffer3, INDICATOR_DATA); SetIndexBuffer(7, bearBuffer4, INDICATOR_DATA); SetIndexBuffer(8, rangeBuffer1, INDICATOR_DATA); SetIndexBuffer(9, rangeBuffer2, INDICATOR_DATA); SetIndexBuffer(10, rangeBuffer3, INDICATOR_DATA); SetIndexBuffer(11, rangeBuffer4, INDICATOR_DATA); //---Setting which value make the bars invisible PlotIndexSetDouble(0, PLOT_EMPTY_VALUE, 0); PlotIndexSetDouble(1, PLOT_EMPTY_VALUE, 0); PlotIndexSetDouble(2, PLOT_EMPTY_VALUE, 0); //---Setting the shift values for each bar PlotIndexSetInteger(0, PLOT_SHIFT, inpShift); PlotIndexSetInteger(1, PLOT_SHIFT, inpShift); PlotIndexSetInteger(2, PLOT_SHIFT, inpShift); //---Setting from where the bars must be drawed PlotIndexSetInteger(0, PLOT_DRAW_BEGIN, inpRed - 1); PlotIndexSetInteger(1, PLOT_DRAW_BEGIN, inpRed - 1); PlotIndexSetInteger(2, PLOT_DRAW_BEGIN, inpRed - 1); //--- return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ //| Custom indicator iteration function | //+------------------------------------------------------------------+ int OnCalculate(const int rates_total, const int prev_calculated, const int begin, const double &price[]) { //--- //---If there is no sufficient bars, don't calculate if(rates_total < inpRed) { return rates_total; } //---Defining from where we should start the calculation int limit; if(prev_calculated < inpRed) limit = inpRed; else limit = prev_calculated - 1; //---Main calculation loop for(int i = limit; i < rates_total; i++) { int shift = BarIndex2shift(i); double open = iOpen(_Symbol, _Period, shift); double high = iHigh(_Symbol, _Period, shift); double low = iLow(_Symbol, _Period, shift); double close = iClose(_Symbol, _Period, shift); double red = price[i - (inpRed)]; //Getting the Red line value double blue = price[i - inpBlue]; //Getting the Blue line value double yellow = price[i]; //Getting the Yellow line value //There are three flags for this filter //0 = sell, 1= wait, 1 = buy // we can buy if 2 lines is above the red // we can sell if 2 lines is below the red int direction = 0; direction += (yellow > red) ? 1 : 0; // If Yellow is above Red, add 1 red = blue; blue = yellow; direction += (blue > red) ? 1 : 0; // If Blue is above Red, add 1 . //For default bars isn't visible bullBuffer1[i] = 0; bullBuffer2[i] = 0; bullBuffer3[i] = 0; bullBuffer4[i] = 0; bearBuffer1[i] = 0; bearBuffer2[i] = 0; bearBuffer3[i] = 0; bearBuffer4[i] = 0; rangeBuffer1[i] = 0; rangeBuffer2[i] = 0; rangeBuffer3[i] = 0; rangeBuffer4[i] = 0; //We'll assign value to each bar according with the direction flag switch(direction) { case 0: // Is bear market { bearBuffer1[i] = open; bearBuffer2[i] = high; bearBuffer3[i] = low; bearBuffer4[i] = close; break; } case 1: // Is bull market { rangeBuffer1[i] = open; rangeBuffer2[i] = high; rangeBuffer3[i] = low; rangeBuffer4[i] = close; break; } case 2: // Is range market { bullBuffer1[i] = open; bullBuffer2[i] = high; bullBuffer3[i] = low; bullBuffer4[i] = close; break; } } } //--- return value of prev_calculated for next call return(rates_total); } int BarIndex2shift(int bar) {return Bars(_Symbol, _Period) - bar - 1;} //+------------------------------------------------------------------+
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Novo artigo Explorando as possibilidades de criar gráficos de velas multicoloridas foi publicado:
Neste artigo, veremos as possibilidades de criação de indicadores de velas personalizados, e falaremos sobre suas vantagens e desvantagens.
Neste artigo, veremos as possibilidades de criação de gráficos de velas personalizados, e falaremos sobre suas vantagens e desvantagens. Adicionalmente, consideraremos quatro alternativas para esse tipo de indicadores:
Assim, alcançamos o objetivo deste artigo, que era o de demonstrar como criar regras de coloração com base em certas condições de negociação escolhidas para criar um gráfico de velas personalizado. O resultado do trabalho feito é mostrado na figura abaixo:
Autor: Samuel Manoel De Souza