PB_forBarChart.efs
EFSLibrary - Discussion Board
File Name: PB_forBarChart.efs
Description:
This study draws Point Break bars directly on bar or candlestick charts.
Formula Parameters:
- Point Break Amount: 3
- Price Source: Close - [Open, High, Low, Close, HL/2, HLC/3, OHLC/4]
- Up Color: Light Green
- Dn Color: Light Red
- Outline Color: Grey
Notes:
NA
Download File:
PB_forBarChart.efs
EFS Code:
/*****************************************************************
Provided By : eSignal (c) Copyright 2004
Description: Point Break Bars for Bar Chart
Version: 1.0
Notes:
This study displays PB bars on regular bar or candlestick chart.
Formula Parameters: Defaults:
Point Break Amount 3
Price Source Close
Up Color Light Green
Dn Color Light Red
Outline Color Grey
*****************************************************************/
function preMain() {
setPriceStudy(true);
setStudyTitle("Point Break Bars");
setCursorLabelName("PB Open", 0);
setCursorLabelName("PB High", 1);
setCursorLabelName("PB Low", 2);
setCursorLabelName("PB Close", 3);
setPlotType(PLOTTYPE_SQUAREWAVE, 0);
setPlotType(PLOTTYPE_SQUAREWAVE, 1);
setPlotType(PLOTTYPE_SQUAREWAVE, 2);
setPlotType(PLOTTYPE_SQUAREWAVE, 3);
setDefaultBarThickness(2, 0);
setDefaultBarThickness(2, 1);
setDefaultBarThickness(2, 2);
setDefaultBarThickness(2, 3);
setDefaultBarFgColor(Color.RGB(95,95,95), 0);
setDefaultBarFgColor(Color.RGB(95,95,95), 1);
setDefaultBarFgColor(Color.RGB(95,95,95), 2);
setDefaultBarFgColor(Color.RGB(95,95,95), 3);
setShowTitleParameters(false);
var fp1 = new FunctionParameter("nPB", FunctionParameter.NUMBER);
fp1.setName("Point Break Amount");
fp1.setLowerLimit(2);
fp1.setDefault(3);
var fp2 = new FunctionParameter("sSource", FunctionParameter.STRING);
fp2.setName("Price Source");
fp2.addOption("Open");
fp2.addOption("High");
fp2.addOption("Low");
fp2.addOption("Close");
fp2.addOption("HL/2");
fp2.addOption("HLC/3");
fp2.addOption("OHLC/4");
fp2.setDefault("Close");
var fp3 = new FunctionParameter("cUp", FunctionParameter.COLOR);
fp3.setName("Up Color");
fp3.setDefault(Color.RGB(140, 220, 140));
var fp4 = new FunctionParameter("cDn", FunctionParameter.COLOR);
fp4.setName("Down Color");
fp4.setDefault(Color.RGB(220, 140, 140));
var fp5 = new FunctionParameter("cOutline", FunctionParameter.COLOR);
fp5.setName("Outline Color");
fp5.setDefault(Color.RGB(95,95,95));
}
var aPBopen = null;
var aPBhigh = null;
var aPBlow = null;
var aPBclose = null;
var bInit = false;
var vPBtrend = "Up"; // Up or Dn - Developing PB bar
var vPBtrend1 = "Up"; // Up or Dn - Confirmed PB bar
var bNew = false; // New PB bar
var Price = null;
var Price1 = null;
function main(nPB, sSource, cUp, cDn, cOutline) {
var nState = getBarState();
if (nState == BARSTATE_NEWBAR) {
Price1 = Price;
vPBtrend1 = vPBtrend;
if (bNew == true) {
// New PB bar confirmed, update PB arrays
var vH = aPBhigh[0];
var vL = aPBlow[0];
if (vPBtrend == "Up") {
aPBopen.pop();
aPBopen.unshift(vH);
aPBhigh.pop();
aPBhigh.unshift(Price);
aPBlow.pop();
aPBlow.unshift(vH);
aPBclose.pop();
aPBclose.unshift(Price);
} else if (vPBtrend == "Dn") {
aPBopen.pop();
aPBopen.unshift(vL);
aPBhigh.pop();
aPBhigh.unshift(vL);
aPBlow.pop();
aPBlow.unshift(Price);
aPBclose.pop();
aPBclose.unshift(Price);
}
}
}
Price = null;
switch (sSource) {
case "Open" :
Price = open(0);
break;
case "High" :
Price = high(0);
break;
case "Low" :
Price = low(0);
break;
case "Close" :
Price = close(0);
break;
case "HL/2" :
Price = (high(0) + low(0) )/ 2;
break;
case "HLC/3" :
Price = (high(0) + low(0) + close(0) )/ 3;
break;
case "OHLC/4" :
Price = (open(0) + high(0) + low(0) + close(0) )/ 4;
break;
}
if (bInit == false) {
setStudyTitle(nPB + " Point Break Bars (Price Source: " + sSource + ")");
setDefaultBarFgColor(cOutline, 0);
setDefaultBarFgColor(cOutline, 1);
setDefaultBarFgColor(cOutline, 2);
setDefaultBarFgColor(cOutline, 3);
aPBopen = new Array(nPB);
aPBhigh = new Array(nPB);
aPBlow = new Array(nPB);
aPBclose = new Array(nPB);
for (var i = 0; i < nPB; i++) {
aPBopen[i] = Price;
aPBhigh[i] = Price;
aPBlow[i] = Price;
aPBclose[i] = Price;
}
bInit = true;
}
// Test for new PB bar
if (Price1 == null) return;
bNew = false;
vPBtrend = vPBtrend1;
var nPBmax = aPBhigh[0];
var nPBmin = aPBlow[0];
for (var i = 0; i < nPB; i++) {
nPBmax = Math.max(nPBmax, aPBhigh[i]);
nPBmin = Math.min(nPBmin, aPBlow[i]);
}
if (vPBtrend == "Up") {
if (Price > nPBmax) {
bNew = true;
} else if (Price < nPBmin) {
bNew = true;
vPBtrend = "Dn";
}
} else if (vPBtrend == "Dn") {
if (Price > nPBmax) {
bNew = true;
vPBtrend = "Up";
} else if (Price < nPBmin) {
bNew = true;
}
}
// Current or developing PB bar
var nPBo = aPBopen[0];
var nPBh = aPBhigh[0];
var nPBl = aPBlow[0];
var nPBc = aPBclose[0];
if (bNew == true) { // New unconfirmed PB bar
var vH = aPBhigh[0];
var vL = aPBlow[0];
if (vPBtrend == "Up") {
nPBo = vH;
nPBh = Price;
nPBl = vH;
nPBc = Price;
} else if (vPBtrend == "Dn") {
nPBo = vL;
nPBh = vL;
nPBl = Price;
nPBc = Price;
}
}
// PB Bar Coloring
var PBColor = cDn;
if (vPBtrend == "Up") PBColor = cUp;
for (var i = 0; i < 4; i++) {
setBarBgColor(PBColor, i, nPBl, nPBh);
}
return new Array(nPBo, nPBh, nPBl, nPBc);
}