//------------------------------------------------------------------ #property copyright "www.forex-tsd.com" #property link "www.forex-tsd.com" //------------------------------------------------------------------ #property indicator_chart_window #property indicator_buffers 2 #property indicator_plots 1 #property indicator_label1 "Double smoothed EMA" #property indicator_type1 DRAW_COLOR_LINE #property indicator_color1 clrOrange #property indicator_style1 STYLE_SOLID #property indicator_width1 2 // // // // // enum enPrices { pr_close, // Close pr_open, // Open pr_high, // High pr_low, // Low pr_median, // Median pr_typical, // Typical pr_weighted, // Weighted pr_average // Average (high+low+oprn+close)/4 }; input enPrices Price = pr_close; // Price to use input int EmaPeriod = 20; // EMA period input color ColorFrom = clrDarkOrange; // Color down input color ColorTo = clrLimeGreen; // Color Up input int ColorSteps = 50; // Color steps for drawing double ssm[]; double colorBuffer[]; //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ // // // // // int cSteps; int OnInit() { SetIndexBuffer(0,ssm,INDICATOR_DATA); SetIndexBuffer(1,colorBuffer,INDICATOR_COLOR_INDEX); cSteps = (ColorSteps>1) ? ColorSteps : 2; PlotIndexSetInteger(0,PLOT_COLOR_INDEXES,cSteps+1); for (int i=0;i=0; k++) { min = (ssm[i-k]max) ? ssm[i-k] : max; } if((max-min) == 0) col = 50; else col = 100 * (ssm[i]-min)/(max-min); colorBuffer[i] = MathFloor(col*cSteps/100.0); } return(rates_total); } //------------------------------------------------------------------ // //------------------------------------------------------------------ // // // // // double getPrice(enPrices price, const double& open[], const double& close[], const double& high[], const double& low[], int i, int bars) { switch (price) { case pr_close: return(close[i]); case pr_open: return(open[i]); case pr_high: return(high[i]); case pr_low: return(low[i]); case pr_median: return((high[i]+low[i])/2.0); case pr_typical: return((high[i]+low[i]+close[i])/3.0); case pr_weighted: return((high[i]+low[i]+close[i]+close[i])/4.0); case pr_average: return((high[i]+low[i]+close[i]+open[i])/4.0); } return(0); } //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ // // // // // color getColor(int stepNo, int totalSteps, color from, color to) { double stes = (double)totalSteps-1.0; double step = (from-to)/(stes); return((color)round(from-step*stepNo)); } color gradientColor(int step, int totalSteps, color from, color to) { color newBlue = getColor(step,totalSteps,(from & 0XFF0000)>>16,(to & 0XFF0000)>>16)<<16; color newGreen = getColor(step,totalSteps,(from & 0X00FF00)>> 8,(to & 0X00FF00)>> 8) <<8; color newRed = getColor(step,totalSteps,(from & 0X0000FF) ,(to & 0X0000FF) ) ; return(newBlue+newGreen+newRed); } // // // // // double workEma[][2]; double iEma(double price, double period, int r, int instanceNo=0) { if (ArrayRange(workEma,0)!= totalBars) ArrayResize(workEma,totalBars); // // // // // double alpha = 2.0 / (1.0+period); workEma[r][instanceNo] = workEma[r-1][instanceNo]+alpha*(price-workEma[r-1][instanceNo]); return(workEma[r][instanceNo]); }