synthetic currency chart

Quoting chrisx

Disliked

Is there a way, I can make a realtime chart of a sythetic currency on the mt4 platform?

Now I want to add these currencies together to make one synthetic currency, which I want to display on the mt4 platform in a normal chart in realtime.
Is that possible?

Ignored

Quoting chrisx

Disliked

Could you point me to a way doing that?

Ignored

Quoting chrisx

Disliked

What I want is a normal offline tick chart with the following basket as example. Nothing fancy or exotic:
15 min timeframe:

AUDUSD*0.68+EURUSD*(-0.04)+GBPUSD*0.03+USDCAD*0.64+USDCHF*0.36

Ignored

Quoting chrisx

Disliked

Thank you very much zznbrm!

But I don't think I know how to use this properly.
Nothing is displayed on the chart, and no History file is written. At least I wasn't able to find one. The script seems to be working though.

Sorry I didn't make it more clear before, but history data would be great.
I want it to look like every other normal currency chart, only displaying the basket combination instead.

If thats possible somehow, it would be great.

Cheers,
Chris

Ignored

Quoting zznbrm

Disliked

Look to Experts/Journal tab for error messages.

Drag the script to a chart - let's pick the EURUSD Monthly chart.
Do not change any user parameters. Hit OK.
The script status will appear in the comments of the EURUSD Monthly chart.
Open the USD-IDX, M15 offline chart. It will look like a normal chart.


How would you like history data calculated? MT4 does not store historical tick data.

Ignored

#property copyright ""
#property link      ""
#property indicator_chart_window
#property indicator_buffers 4


//Indicator Parameters
extern string SubSymbol = "USDJPY";
extern color BullBarColor = Blue;
extern color BearBarColor = Red;
extern color GridColor = Black;
extern bool Mirroring = false;

//Global Variables
string Prefix; //Indicator Prefix
int Grid = 10; //Grid Lines
int SnapPips = 10;  //Snap Pips For Grid Lines


//Indicator Buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
double ExtMapBuffer4[];



//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init() {

   //Initialize Indexes
   Prefix = "Chart_Indi" + SubSymbol;

   IndicatorShortName( "Chart_Indi( " + SubSymbol + " )" );

   SetIndexBuffer( 0, ExtMapBuffer1 );
   SetIndexBuffer( 1, ExtMapBuffer2 );
   SetIndexBuffer( 2, ExtMapBuffer3 );
   SetIndexBuffer( 3, ExtMapBuffer4 );

   SetIndexStyle( 0, DRAW_HISTOGRAM, DRAW_LINE, 1, BullBarColor );
   SetIndexStyle( 1, DRAW_HISTOGRAM, DRAW_LINE, 1, BearBarColor );
   SetIndexStyle ( 2, DRAW_HISTOGRAM, DRAW_LINE, 3, BullBarColor );
   SetIndexStyle( 3, DRAW_HISTOGRAM, DRAW_LINE, 3, BearBarColor );

   SetIndexEmptyValue( 0, 0.0 );
   SetIndexEmptyValue( 1, 0.0 );
   SetIndexEmptyValue( 2, 0.0 );
   SetIndexEmptyValue( 3, 0.0 );


   return( 0 );
}



//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit() {
   int _i;
   
 for ( _i = 1; _i <= Grid ; _i ++ ) {
    ObjectDelete( Prefix + "Grid" + _i );
    ObjectDelete( Prefix + "Price" + _i );
   }
   ObjectDelete( Prefix + "Status" );

   return( 0 );
}



//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start() {

   if(IsDemo()==True && IsTesting()==True)
   {
   int _BarsCount;
   double _CurRangeHigh, _CurRangeLow, _CurRangeCenter;
   double _SubRangeHigh, _SubRangeLow, _SubRangeCenter;
   double _SubPoint, _SubDigit;
   double _SubOpen, _SubHigh, _SubLow, _SubClose;
   double _PipsRatio;
   double _GridPips, _GridPrice;
   int _i;



   //Initialize Buffers
 RefreshRates();

   ArrayInitialize( ExtMapBuffer1, 0.0 );
   ArrayInitialize( ExtMapBuffer2, 0.0 );
   ArrayInitialize( ExtMapBuffer3, 0.0 );
   ArrayInitialize( ExtMapBuffer4, 0.0 );


   //Calculate Visible Bars
   _BarsCount = BarsPerWindow() + 1;
   int _FirstBar = FirstVisibleBar();
   int _LastBar = _FirstBar - _BarsCount + 1;
   if ( _LastBar < 0 ) {
      _LastBar = 0;
      _BarsCount = _FirstBar + 1;
   }


   //Calculate Chart Ratio
   _CurRangeHigh = High[Highest(NULL, 0, MODE_HIGH, _BarsCount, _LastBar)];
   _CurRangeLow = Low[Lowest(NULL, 0, MODE_LOW, _BarsCount, _LastBar)];
   _CurRangeCenter = ( _CurRangeHigh + _CurRangeLow ) / 2;

   if ( Mirroring ) {
      _SubRangeHigh = iLow( SubSymbol, 0, Lowest( SubSymbol, 0, MODE_LOW, _BarsCount, _LastBar ) );
      _SubRangeLow = iHigh( SubSymbol, 0, Highest( SubSymbol, 0, MODE_HIGH, _BarsCount, _LastBar ) );
   } else {
      _SubRangeHigh = iHigh( SubSymbol, 0, Highest( SubSymbol, 0, MODE_HIGH, _BarsCount, _LastBar ) );
      _SubRangeLow = iLow( SubSymbol, 0, Lowest( SubSymbol, 0, MODE_LOW, _BarsCount, _LastBar ) );
   }

   _SubRangeCenter = ( _SubRangeHigh + _SubRangeLow ) / 2;
   _SubPoint = MarketInfo( SubSymbol, MODE_POINT );
   _SubDigit = MarketInfo( SubSymbol, MODE_DIGITS );

   _PipsRatio = ( _CurRangeHigh - _CurRangeLow )  / ( _SubRangeHigh - _SubRangeLow );

   _GridPips = ( _SubRangeHigh - _SubRangeLow ) / Grid;
   _GridPips = MathRound( ( _SubRangeHigh - _SubRangeLow ) / Grid / ( _SubPoint * SnapPips ) ) * ( _SubPoint * SnapPips );


   //Draw Candlesticks
 for ( _i = _LastBar; _i < _LastBar + _BarsCount; _i ++ ) {
      _SubOpen = iOpen( SubSymbol, 0, _i ) - _SubRangeCenter;
      _SubHigh = iHigh( SubSymbol, 0, _i ) - _SubRangeCenter;
      _SubLow = iLow( SubSymbol, 0, _i ) - _SubRangeCenter;
      _SubClose = iClose( SubSymbol, 0, _i ) - _SubRangeCenter;

      if ( Mirroring ) {
         if ( _SubOpen < _SubClose ) {
            ExtMapBuffer2[_i] = _CurRangeCenter + _SubHigh * _PipsRatio;
            ExtMapBuffer1[_i] = _CurRangeCenter + _SubLow * _PipsRatio;
         } else {
            ExtMapBuffer2[_i] = _CurRangeCenter + _SubLow * _PipsRatio;
            ExtMapBuffer1[_i] = _CurRangeCenter + _SubHigh * _PipsRatio;
         }

         ExtMapBuffer4[_i] = _CurRangeCenter + _SubClose * _PipsRatio;
         ExtMapBuffer3[_i] = _CurRangeCenter + _SubOpen * _PipsRatio;
      } else {
         if ( _SubOpen < _SubClose ) {
            ExtMapBuffer1[_i] = _CurRangeCenter + _SubHigh * _PipsRatio;
            ExtMapBuffer2[_i] = _CurRangeCenter + _SubLow * _PipsRatio;
         } else {
            ExtMapBuffer1[_i] = _CurRangeCenter + _SubLow * _PipsRatio;
            ExtMapBuffer2[_i] = _CurRangeCenter + _SubHigh * _PipsRatio;
         }
         ExtMapBuffer3[_i] = _CurRangeCenter + _SubClose * _PipsRatio;
         ExtMapBuffer4[_i] = _CurRangeCenter + _SubOpen * _PipsRatio;
      }
   }


   //Draw Objects
   
   ObjectCreate( Prefix + "Status ", OBJ_LABEL, 0, 0, 0 );
 ObjectSet( Prefix + "Status", OBJPROP_COLOR, GridColor );
   ObjectSet( Prefix + "Status ", OBJPROP_CORNER, 0 );
   ObjectSet( Prefix + "Status ", OBJPROP_XDISTANCE, 4 );
   ObjectSet( Prefix + "Status ", OBJPROP_YDISTANCE, 16 );
   ObjectSetText( Prefix + "Status ",
                  SubSymbol + " O = " + DoubleToStr( iOpen( SubSymbol, 0, _LastBar ), _SubDigit ) +
                  ", H = " + DoubleToStr( iHigh( SubSymbol, 0, _LastBar ), _SubDigit ) +
                  ", L = " + DoubleToStr( iLow( SubSymbol, 0, _LastBar ), _SubDigit ) +
                  ", C = " + DoubleToStr( iClose( SubSymbol, 0, _LastBar ), _SubDigit ),
                  8 );

 for ( _i = 1; _i <= Grid ; _i ++ ) {
      _GridPrice = MathRound( _SubRangeCenter / ( _SubPoint * SnapPips ) ) * ( _SubPoint * SnapPips );
      _GridPrice = ( ( _GridPrice + _GridPips / 2 ) + _GridPips * ( Grid / 2 - 1 ) ) - ( _GridPips * ( _i - 1 ) );

 ObjectCreate( Prefix + "Grid" + _i, OBJ_TREND, 0, 0, 0 );
      ObjectSet( Prefix + "Grid" + _i, OBJPROP_TIME1, Time[_FirstBar] );
      ObjectSet( Prefix + "Grid" + _i, OBJPROP_PRICE1, _CurRangeCenter + ( _GridPrice - _SubRangeCenter ) * _PipsRatio );
      ObjectSet( Prefix + "Grid" + _i, OBJPROP_TIME2, Time[_LastBar] );
      ObjectSet( Prefix + "Grid" + _i, OBJPROP_PRICE2, _CurRangeCenter + ( _GridPrice - _SubRangeCenter ) * _PipsRatio );
 ObjectSet( Prefix + "Grid" + _i, OBJPROP_COLOR, GridColor );
 ObjectSet( Prefix + "Grid" + _i, OBJPROP_STYLE, STYLE_DOT );
 ObjectSet( Prefix + "Grid" + _i, OBJPROP_WIDTH, 1 );
 ObjectSet( Prefix + "Grid" + _i, OBJPROP_RAY, true );

 ObjectCreate( Prefix + "Price" + _i, OBJ_TEXT, 0, 0, 0 );
      ObjectSet( Prefix + "Price" + _i, OBJPROP_TIME1, Time[_FirstBar - _BarsCount / 10] );
      ObjectSet( Prefix + "Price" + _i, OBJPROP_PRICE1, _CurRangeCenter + ( _GridPrice - _SubRangeCenter ) * _PipsRatio );
 ObjectSet( Prefix + "Price" + _i, OBJPROP_COLOR, GridColor );
      ObjectSetText( Prefix + "Price" + _i, DoubleToStr( _GridPrice, _SubDigit ), 8 );
   }

   }
   return( 0 );
}
//+------------------------------------------------------------------+