如何画两个柱状图差值

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zhangyaomin 2021.03.15 04:11

你好

请教一个问题就是我要在附图中画两个柱状图的差值，如下图：

但是我改编程MT4之后，达不到这个效果，重叠部分也画出来了。如下图

请问怎么解决这个问题？烦请帮忙解答。感谢

下面是源码：

//+------------------------------------------------------------------+

//| FXBS2.mq4 |

//| https://www.mql5.com |

//+------------------------------------------------------------------+

#property link "https://www.mql5.com"

#property version "1.00"

#property strict

#property indicator_separate_window

#property indicator_buffers 3

#property indicator_plots 3

//--- plot FXBS_d

#property indicator_label1 "FXBS_d"

#property indicator_type1 DRAW_HISTOGRAM

#property indicator_color1 clrRed

#property indicator_style1 STYLE_SOLID

#property indicator_width1 2

//--- plot FXBS_x

#property indicator_label2 "FXBS_x"

#property indicator_type2 DRAW_HISTOGRAM

#property indicator_color2 clrGreen

#property indicator_style2 STYLE_SOLID

#property indicator_width2 2

//--- plot 生命线

#property indicator_label3 "生命线"

#property indicator_type3 DRAW_LINE

#property indicator_color3 clrYellow

#property indicator_style3 STYLE_SOLID

#property indicator_width3 1

input int InpPeriod_1=9; //

input int InpPeriod_2=60; //

input int InpPeriod_3=34; //

//--- indicator buffers

double FXBS_dBuffer[];

double FXBS_xBuffer[];

double 生命线Buffer[];

double VAR1Buffer[];

double VAR2Buffer[];

double VAR3Buffer[];

double VAR4Buffer[];

double VAR5Buffer[];

double VAR6Buffer[];

double VAR7Buffer[];

double VAR8Buffer[];

double VAR9Buffer[];

double VAR10Buffer[];

double VAR11Buffer[];

double VAR12Buffer[];

double VAR13Buffer[];

double VAR14Buffer[];

double VAR15Buffer[];

double VAR16Buffer[];

//+------------------------------------------------------------------+

//| Custom indicator initialization function |

//+------------------------------------------------------------------+

int OnInit()

{

string short_name;

IndicatorBuffers(18);

//--- indicator buffers mapping

// SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID,2,Red);

// SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_SOLID,2,Green);

SetIndexBuffer(0,VAR12Buffer);

SetIndexBuffer(1,VAR13Buffer);

// SetIndexStyle(1,DRAW_LINE,STYLE_SOLID,1,Yellow);// SetIndexStyle(1,DRAW_NONE);

SetIndexBuffer(2,生命线Buffer);

SetIndexStyle(3,DRAW_NONE); // SetIndexStyle(2,DRAW_LINE,STYLE_SOLID,1,White);

SetIndexBuffer(3,VAR1Buffer);

SetIndexStyle(4,DRAW_NONE); // SetIndexStyle(3,DRAW_LINE,STYLE_SOLID,1,White);

SetIndexBuffer(4,VAR2Buffer);

SetIndexStyle(5,DRAW_NONE); // SetIndexStyle(4,DRAW_LINE,STYLE_SOLID,1,White);

SetIndexBuffer(5,VAR3Buffer);

SetIndexStyle(6,DRAW_NONE); // SetIndexStyle(5,DRAW_LINE,STYLE_SOLID,1,White);

SetIndexBuffer(6,VAR4Buffer);

SetIndexStyle(7,DRAW_NONE); // SetIndexStyle(6,DRAW_LINE,STYLE_SOLID,1,Red);

SetIndexBuffer(7,VAR5Buffer);

SetIndexStyle(8,DRAW_NONE); // SetIndexStyle(7,DRAW_LINE,STYLE_SOLID,1,White);

SetIndexBuffer(8,VAR6Buffer);

SetIndexStyle(9,DRAW_NONE); // SetIndexStyle(8,DRAW_LINE,STYLE_SOLID,1,Red);

SetIndexBuffer(9,VAR7Buffer);

SetIndexStyle(10,DRAW_NONE); //SetIndexStyle(9,DRAW_LINE,STYLE_SOLID,1,White);

SetIndexBuffer(10,VAR8Buffer);

SetIndexStyle(11,DRAW_NONE); //SetIndexStyle(10,DRAW_LINE,STYLE_SOLID,1,White);

SetIndexBuffer(11,VAR9Buffer);

SetIndexStyle(12,DRAW_NONE);// SetIndexStyle(11,DRAW_LINE,STYLE_SOLID,1,White);

SetIndexBuffer(12,VAR10Buffer);

SetIndexStyle(13,DRAW_NONE); // SetIndexStyle(12,DRAW_LINE,STYLE_SOLID,1,White);

SetIndexBuffer(13,VAR11Buffer);

SetIndexStyle(14,DRAW_NONE); // SetIndexStyle(15,DRAW_LINE,STYLE_SOLID,1,Red);

SetIndexBuffer(14,VAR14Buffer);

SetIndexStyle(15,DRAW_NONE); //SetIndexStyle(16,DRAW_LINE,STYLE_SOLID,1,Red);

SetIndexBuffer(15,VAR15Buffer);

SetIndexStyle(16,DRAW_NONE); // SetIndexStyle(17,DRAW_LINE,STYLE_SOLID,1,White);

SetIndexBuffer(16,VAR16Buffer);

short_name="FXBS2("+IntegerToString(InpPeriod_1)+","+IntegerToString(InpPeriod_2)+","+IntegerToString(InpPeriod_3)+")";

IndicatorShortName(short_name);

SetIndexLabel(0,short_name);

//---

return(INIT_SUCCEEDED);

}

//+------------------------------------------------------------------+

//| 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[])

{

//---

int i,limit;

//---

if(rates_total<InpPeriod_2)

return(0);

//--- last counted bar will be recounted

limit=rates_total-prev_calculated;

if(prev_calculated>0)

limit++;

//--- macd counted in the 1-st buffer

for(i=0; i<limit; i++)

{

VAR1Buffer[i]= High[iHighest(NULL,0,MODE_HIGH,InpPeriod_1,i)] -Low[iLowest(NULL,0,MODE_LOW,InpPeriod_1,i)];

VAR2Buffer[i]= High[iHighest(NULL,0,MODE_HIGH,InpPeriod_1,i)]-close[i];

VAR3Buffer[i]= close[i]-Low[iLowest(NULL,0,MODE_LOW,InpPeriod_1,i)];

if(VAR1Buffer[i] !=0)

VAR4Buffer[i] =VAR2Buffer[i]/VAR1Buffer[i]*100-70;

if((High[iHighest(NULL,0,MODE_HIGH,InpPeriod_2,i)]-Low[iLowest(NULL,0,MODE_LOW,InpPeriod_2,i)])>0)

VAR5Buffer[i]=(close[i]-Low[iLowest(NULL,0,MODE_LOW,InpPeriod_2,i)])/(High[iHighest(NULL,0,MODE_HIGH,InpPeriod_2,i)]-Low[iLowest(NULL,0,MODE_LOW,InpPeriod_2,i)])*100;

VAR6Buffer[i]=(2*close[i]+high[i]+low[i])/4;

if(VAR1Buffer[i] !=0)

VAR14Buffer[i]=VAR3Buffer[i]/VAR1Buffer[i]*100;

}

for(i=0; i<limit; i++)

{

// VAR7Buffer[i]=SimpleMA(i,3,VAR14Buffer);

VAR7Buffer[i]=iMAOnArray(VAR14Buffer,0,3,0,MODE_SMA,i);

VAR8Buffer[i]=Low[iLowest(NULL,0,MODE_LOW,InpPeriod_3,i)];

}

for(i=0; i<limit; i++)

{

//VAR9Buffer[i]=SimpleMA(i,3,VAR7Buffer)-SimpleMA(i,9,VAR4Buffer);

VAR9Buffer[i]=iMAOnArray(VAR7Buffer,0,3,0,MODE_SMA,i)-iMAOnArray(VAR4Buffer,0,9,0,MODE_SMA,i);

}

for(i=0; i<limit; i++)

{

VAR10Buffer[i]=0;

if(VAR9Buffer[i]>100) VAR10Buffer[i]=VAR9Buffer[i]-100;

else VAR10Buffer[i]=0;

VAR11Buffer[i]=High[iHighest(NULL,0,MODE_HIGH,InpPeriod_3,i)];

if((VAR11Buffer[i]-VAR8Buffer[i])!=0)

VAR15Buffer[i]=(VAR6Buffer[i]-VAR8Buffer[i])/(VAR11Buffer[i]-VAR8Buffer[i])*100;

}

for(i=0; i<limit; i++)

{

//VAR12Buffer[i]=ExponentialMA(i,13,0,VAR15Buffer);

VAR12Buffer[i]=iMAOnArray(VAR15Buffer,0,13,0,MODE_EMA,i);

}

for(i=0; i<limit; i++)

{

if(prev_calculated==0 && i==limit-1)

VAR16Buffer[i]=0.667*VAR12Buffer[i]+0.333*VAR12Buffer[i];

else

VAR16Buffer[i]=0.667*VAR12Buffer[i+1]+0.333*VAR12Buffer[i];

}

for(i=0; i<limit; i++)

{

//VAR13Buffer[i]=ExponentialMA(i,2,0,VAR16Buffer);

VAR13Buffer[i]=iMAOnArray(VAR16Buffer,0,2,0,MODE_EMA,i);

}

for(i=0; i<limit; i++)

{

// 生命线Buffer[i]=ExponentialMA(i,5,0,VAR13Buffer);

生命线Buffer[i]=iMAOnArray(VAR13Buffer,0,5,0,MODE_EMA,i);

}

//--- return value of prev_calculated for next call

return(rates_total);

}

//+------------------------------------------------------------------+

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Sergey Golubev 2021.03.15 04:29 #1

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