//+------------------------------------------------------------------+
//| TriangularMA centered bands.mq4 |
//| mladen |
//|
[email protected] |
//+------------------------------------------------------------------+
#property copyright "mladen"
#property link "
[email protected]"
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 Yellow
#property indicator_color2 DodgerBlue
#property indicator_color3 Red
#property indicator_style2 STYLE_DOT
#property indicator_style3 STYLE_DOT
//
//
//
//
//
extern string TimeFrame = "current time frame";
extern int HalfLength = 56;
extern int Price = PRICE_CLOSE;
extern double ATRMultiplier = 2.0;
extern int ATRPeriod = 100;
extern bool Interpolate = true;
extern bool alertsOn = false;
extern bool alertsOnCurrent = false;
extern bool alertsOnHighLow = true;
extern bool alertsMessage = true;
extern bool alertsSound = false;
extern bool alertsEmail = false;
//
//
//
//
//
double buffer1[];
double buffer2[];
double buffer3[];
double trend[];
//
//
//
//
//
string indicatorFileName;
bool calculateValue;
bool returnBars;
int timeFrame;
int gi_PipsDecimal;
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
//
//
//
//
int init()
{
IndicatorBuffers(4);
HalfLength=MathMax(HalfLength,1);
SetIndexBuffer(0,buffer1); SetIndexDrawBegin(0,HalfLength);
SetIndexBuffer(1,buffer2); SetIndexDrawBegin(1,HalfLength);
SetIndexBuffer(2,buffer3); SetIndexDrawBegin(2,HalfLength);
SetIndexBuffer(3,trend);
//
//
//
//
//
indicatorFileName = WindowExpertName();
returnBars = TimeFrame=="returnBars"; if (returnBars) return(0);
calculateValue = TimeFrame=="calculateValue"; if (calculateValue) return(0);
timeFrame = stringToTimeFrame(TimeFrame);
//
//
//
//
//
IndicatorShortName(timeFrameToString(timeFrame)+" TMA bands ("+HalfLength+")");
gi_PipsDecimal = Get_Pips_Decimal();
return(0);
}
int deinit() { return(0); }
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
//
//
//
//
//
int start()
{
int counted_bars=IndicatorCounted();
int i,j,k,limit;
if(counted_bars<0) return(-1);
if(counted_bars>0) counted_bars--;
limit=MathMin(Bars-1,Bars-counted_bars+HalfLength);
if (returnBars) { buffer1[0] = limit+1; return(0); }
//
//
//
//
//
if (calculateValue || timeFrame==Period())
{
for (i=limit; i>=0; i--)
{
double sum = (HalfLength+1)*iMA(NULL,0,1,0,MODE_SMA,Price,i);
double sumw = (HalfLength+1);
for(j=1, k=HalfLength; j<=HalfLength; j++, k--)
{
sum += k*iMA(NULL,0,1,0,MODE_SMA,Price,i+j);
sumw += k;
if (j<=i)
{
sum += k*iMA(NULL,0,1,0,MODE_SMA,Price,i-j);
sumw += k;
}
}
//
//
//
//
//
double range = iATR(NULL,0,ATRPeriod,i+10)*ATRMultiplier;
buffer1
= sum/sumw;
buffer2 = buffer1+range;
buffer3 = buffer1-range;
//
//
//
//
//
trend = 0;
if (alertsOnHighLow)
{
if (High > buffer2) trend = 1;
if (Low < buffer3) trend = -1;
}
else
{
if (Close > buffer2) trend = 1;
if (Close < buffer3) trend = -1;
}
}
if (!calculateValue) manageAlerts();
// Calculate the distances between bid & bands
double ld_Dist.Pts, ld_Dist.Pips;
// Distance to mid
ld_Dist.Pts = MathAbs(Bid - buffer1[0]);
ld_Dist.Pips = Convert_2_Pips(ld_Dist.Pts);
ObjectCreate("!Mid",OBJ_TEXT,0,0,0);
ObjectSet("!Mid",OBJPROP_TIME1,Time[0]+(3*Period()*60));
ObjectSet("!Mid",OBJPROP_PRICE1,buffer1[0]);
ObjectSetText("!Mid",DoubleToStr(ld_Dist.Pips,gi_PipsDecimal),10,"Arial",indicator_color1);
// Distance to upper
ld_Dist.Pts = MathAbs(Bid - buffer2[0]);
ld_Dist.Pips = Convert_2_Pips(ld_Dist.Pts);
ObjectCreate("!Upp",OBJ_TEXT,0,0,0);
ObjectSet("!Upp",OBJPROP_TIME1,Time[0]+(3*Period()*60));
ObjectSet("!Upp",OBJPROP_PRICE1,buffer2[0]);
ObjectSetText("!Upp",DoubleToStr(ld_Dist.Pips,gi_PipsDecimal),10,"Arial",indicator_color2);
// Distance to lower
ld_Dist.Pts = MathAbs(Bid - buffer3[0]);
ld_Dist.Pips = Convert_2_Pips(ld_Dist.Pts);
ObjectCreate("!Low",OBJ_TEXT,0,0,0);
ObjectSet("!Low",OBJPROP_TIME1,Time[0]+(3*Period()*60));
ObjectSet("!Low",OBJPROP_PRICE1,buffer3[0]);
ObjectSetText("!Low",DoubleToStr(ld_Dist.Pips,gi_PipsDecimal),10,"Arial",indicator_color3);
return(0);
}
//
//
//
//
//
limit = MathMax(limit,MathMin(Bars-1,iCustom(NULL,timeFrame,indicatorFileName,"returnBars",0,0)*timeFrame/Period()));
for(i=limit; i>=0; i--)
{
int y = iBarShift(NULL,timeFrame,Time);
buffer1 = iCustom(NULL,timeFrame,indicatorFileName,"calculateTma",HalfLength,Price,ATRMultiplier,ATRPeriod,0,y);
buffer2 = iCustom(NULL,timeFrame,indicatorFileName,"calculateTma",HalfLength,Price,ATRMultiplier,ATRPeriod,1,y);
buffer3 = iCustom(NULL,timeFrame,indicatorFileName,"calculateTma",HalfLength,Price,ATRMultiplier,ATRPeriod,2,y);
trend = iCustom(NULL,timeFrame,indicatorFileName,"calculateTma",HalfLength,Price,ATRMultiplier,ATRPeriod,3,y);
//
//
//
//
//
if (timeFrame <= Period() || y==iBarShift(NULL,timeFrame,Time[i-1])) continue;
if (!Interpolate) continue;
//
//
//
//
//
datetime time = iTime(NULL,timeFrame,y);
for(int n = 1; i+n < Bars && Time[i+n] >= time; n++) continue;
for(k = 1; k < n; k++)
{
buffer1[i+k] = buffer1 +(buffer1[i+n]-buffer1)*k/n;
buffer2[i+k] = buffer2 +(buffer2[i+n]-buffer2)*k/n;
buffer3[i+k] = buffer3 +(buffer3[i+n]-buffer3)*k/n;
}
}
//
//
//
//
//
manageAlerts();
return(0);
}
//+-------------------------------------------------------------------
//|
//+-------------------------------------------------------------------
//
//
//
//
//
void manageAlerts()
{
if (alertsOn)
{
if (alertsOnCurrent)
int whichBar = 0;
else whichBar = 1; whichBar = iBarShift(NULL,0,iTime(NULL,timeFrame,whichBar));
if (trend[whichBar] != trend[whichBar+1])
{
if (trend[whichBar] == 1) doAlert(whichBar,"up");
if (trend[whichBar] ==-1) doAlert(whichBar,"down");
}
}
}
//
//
//
//
//
void doAlert(int forBar, string doWhat)
{
static string previousAlert="nothing";
static datetime previousTime;
string message;
if (previousAlert != doWhat || previousTime != Time[forBar]) {
previousAlert = doWhat;
previousTime = Time[forBar];
//
//
//
//
//
message = StringConcatenate(Symbol()," at ",TimeToStr(TimeLocal(),TIME_SECONDS)," "+timeFrameToString(timeFrame)+" TMA bands price penetrated ",doWhat," band");
if (alertsMessage) Alert(message);
if (alertsEmail) SendMail(StringConcatenate(Symbol(),"TMA bands "),message);
if (alertsSound) PlaySound("alert2.wav");
}
}
//+-------------------------------------------------------------------
//|
//+-------------------------------------------------------------------
//
//
//
//
//
string sTfTable[] = {"M1","M5","M15","M30","H1","H4","D1","W1","MN"};
int iTfTable[] = {1,5,15,30,60,240,1440,10080,43200};
//
//
//
//
//
int stringToTimeFrame(string tfs)
{
tfs = StringUpperCase(tfs);
for (int i=ArraySize(iTfTable)-1; i>=0; i--)
if (tfs==sTfTable || tfs==""+iTfTable) return(MathMax(iTfTable,Period()));
return(Period());
}
string timeFrameToString(int tf)
{
for (int i=ArraySize(iTfTable)-1; i>=0; i--)
if (tf==iTfTable) return(sTfTable);
return("");
}
//
//
//
//
//
string StringUpperCase(string str)
{
string s = str;
for (int length=StringLen(str)-1; length>=0; length--)
{
int char = StringGetChar(s, length);
if((char > 96 && char < 123) || (char > 223 && char < 256))
s = StringSetChar(s, length, char - 32);
else if(char > -33 && char < 0)
s = StringSetChar(s, length, char + 224);
}
return(s);
}
//+------------------------------------------------------------------+
//| create screen objects |
//+------------------------------------------------------------------+
void Object_Create(string ps_name,int pi_x,int pi_y,string ps_text=" ",int pi_size=12,
string ps_font="Arial",color pc_colour=CLR_NONE)
{
//----
// if (colour==CLR_NONE) colour=xcBackground;
ObjectCreate(ps_name,OBJ_LABEL,0,0,0,0,0);
ObjectSet(ps_name,OBJPROP_CORNER,1);
ObjectSet(ps_name,OBJPROP_COLOR,pc_colour);
ObjectSet(ps_name,OBJPROP_XDISTANCE,pi_x);
ObjectSet(ps_name,OBJPROP_YDISTANCE,pi_y);
ObjectSetText(ps_name,ps_text,pi_size,ps_font,pc_colour);
//----
return(0);
}
//+------------------------------------------------------------------+
//| convert to points |
//+------------------------------------------------------------------+
double Convert_2_Pts(double pd_Pips)
{
//----
int pd_Points=pd_Pips; // Default - no conversion
if (Digits == 5 || (Digits == 3 && StringFind(Symbol(), "JPY") != -1))
pd_Points=pd_Pips*10;
if (Digits == 6 || (Digits == 4 && StringFind(Symbol(), "JPY") != -1))
pd_Points=pd_Pips*100;
//----
return(pd_Points);
}
//+------------------------------------------------------------------+
//| convert to pips |
//+------------------------------------------------------------------+
double Convert_2_Pips(double pd_Points)
{
//----
double pd_Pips=pd_Points/Point; // Default - no conversion
if (Digits == 5 || (Digits == 3 && StringFind(Symbol(), "JPY") != -1))
{
pd_Pips=pd_Points/Point/10;
}
if (Digits == 6 || (Digits == 4 && StringFind(Symbol(), "JPY") != -1))
{
pd_Pips=pd_Points/Point/100;
}
//----
return(pd_Pips);
}
//+------------------------------------------------------------------+
//| get the pips decimal places |
//+------------------------------------------------------------------+
int Get_Pips_Decimal()
{
//----
int pi_PipsDecimal = 0; // Default - no decimals
if (Digits == 5 || (Digits == 3 && StringFind(Symbol(), "JPY") != -1))
{
pi_PipsDecimal = 1;
}
if (Digits == 6 || (Digits == 4 && StringFind(Symbol(), "JPY") != -1))
{
pi_PipsDecimal = 2;
}
//----
return(pi_PipsDecimal);
}
