A indicator to demo buffer-pattern: Candles + Fractals + ZigzagColor + ColorMaLine.
It uses the folllowing drawing styles:
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
//--- indicator buffers mapping
SetIndexBuffer( 0,P1B1,INDICATOR_DATA);
SetIndexBuffer( 1,P1B2,INDICATOR_DATA);
SetIndexBuffer( 2,P1B3,INDICATOR_DATA);
SetIndexBuffer( 3,P1B4,INDICATOR_DATA);
SetIndexBuffer( 4,P1BC,INDICATOR_COLOR_INDEX);
SetIndexBuffer( 5,P2B1,INDICATOR_DATA);
SetIndexBuffer( 6,P3B1,INDICATOR_DATA);
SetIndexBuffer( 7,P4B1,INDICATOR_DATA);
SetIndexBuffer( 8,P4B2,INDICATOR_DATA);
SetIndexBuffer( 9,P4BC,INDICATOR_COLOR_INDEX);
SetIndexBuffer(10,P5B1,INDICATOR_DATA);
SetIndexBuffer(11,P5BC,INDICATOR_COLOR_INDEX);
//--- Auxiliary buffers for intermediate calculations
SetIndexBuffer(12,P4M1,INDICATOR_CALCULATIONS);
SetIndexBuffer(13,P4M2,INDICATOR_CALCULATIONS);
//--- They should be placed after all the buffer to be displayed, or else ... you can try it by youself
//--- ARROW
PlotIndexSetInteger(1,PLOT_ARROW,217);
PlotIndexSetInteger(2,PLOT_ARROW,218);
PlotIndexSetInteger(1,PLOT_ARROW_SHIFT,-iArrowShift);
PlotIndexSetInteger(2,PLOT_ARROW_SHIFT,iArrowShift);
PlotIndexSetDouble(1,PLOT_EMPTY_VALUE,EMPTY_VALUE);
PlotIndexSetDouble(2,PLOT_EMPTY_VALUE,EMPTY_VALUE);
//--- ZIGZAG
PlotIndexSetDouble(3,PLOT_EMPTY_VALUE,0.0);
//--- MA
maHandle=iMA(Symbol(),0,ExtPeriod,0,MODE_EMA,PRICE_CLOSE);
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
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& tick_volume[],
const long& volume[],
const int& spread[])
{
//---
CalcCandles(rates_total,prev_calculated,open,high,low,close);
CalcFractal(rates_total,prev_calculated,high,low,P2B1,P3B1);
CalcZigzag (rates_total,prev_calculated,high,low,P4B1,P4B2,P4BC,P4M1,P4M2);
CalcColorMA(rates_total,prev_calculated,P5B1,P5BC);
//--- return value of prev_calculated for next call
return(rates_total);
}