2つの通貨ペアのチャートを見比べたい時には、2つのチャート画面を横に並べて表示します。しかし、2つの通貨ペアを1つの画面に表示して比較したい場合もあります。
そのような時は、「OverLay20Chart.mq4」というインディケーターを用いることで可能になります。
上のチャートは、USD/JPYのチャートに、EUR/JPYのチャートを重ね合わせたものです。デザインを変更するには、元のチャートとOverLay20Chart.mq4のそれぞれの設定を変更します。
上のチャートは、USD/JPYのチャートに、EUR/USDのチャートを重ね合わせたものです。シンプルなデザインに変更しています。
「OverLay20Chart.mq4」のソースリストは次の通りです。
ファイル名を「OverLay20Chart.mq4」として、MT4のインストールされているフォルダ内の「experts」フォルダ内にある「indicators」フォルダに保存します。
「OverLay20Chart.mq4」
//+------------------------------------------------------------------+
//| OverLay Chart.mq4 Ver.1.10 |
//| Copyrightｩ 2006-2007 S.B.T. |
//| http://sufx.core.t3-ism.net/ |
//+------------------- DO NOT REMOVE THIS HEADER --------------------+
//| This script is free to use/distribute/modify and re-distribute. |
//| (Limited to noncommercial use.) |
//+------------------------------------------------------------------+
//Indicator Properties
#property copyright "Copyrightｩ 2006 S.B.T."
#property link "http://sufx.core.t3-ism.net/"
#property indicator_chart_window
#property indicator_buffers 4
//Indicator Parameters
extern string SubSymbol = "USDJPY";
extern color BullBarColor = MediumSeaGreen;
extern color BearBarColor = Orange;
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 = "OverLayChart" + SubSymbol;
IndicatorShortName( "OverLay Chart( " + 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;
//Delete Objects
ObjectDelete( Prefix + "Status" );
ObjectDelete( Prefix + "Copyright" );
for ( _i = 1; _i <= Grid ; _i ++ ) {
ObjectDelete( Prefix + "Grid" + _i );
ObjectDelete( Prefix + "Price" + _i );
}
return( 0 );
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start() {
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 + "Copyright", OBJ_LABEL, 0, 0, 0 );
ObjectSet( Prefix + "Copyright", OBJPROP_COLOR, GridColor );
ObjectSet( Prefix + "Copyright", OBJPROP_CORNER, 3 );
ObjectSet( Prefix + "Copyright", OBJPROP_XDISTANCE, 4 );
ObjectSet( Prefix + "Copyright", OBJPROP_YDISTANCE, 4 );
ObjectSetText( Prefix + "Copyright", "OverLay Chart by S.B.T.", 8 );
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 );
}
//+------------------------------------------------------------------+