Hi, i wonder if someone could help me converting this indicator from tradingview into mql4.

This script draws trendlines from the pivot points in the price chart.

The angle of the trendlines is determined by (a percentage of) the atr.

The angle follows the change in price, dictated by the atr at the moment where the pivot point is detected.

The atr percentage determines if the trendline follows the rate of change of the atr or a fraction ( value < 100) or a multiple ( value > 100) of that.

Code:

//@version=4
//
/////////////////////////////////////////////////////
/// © Copyright 2020 to present, Joris Duyck (JD) ///
/////////////////////////////////////////////////////
//{
// This script draws trendlines from the pivot points in the price chart.

// The angle of the trendlines is determined by (a percentage of) the atr.
// The angle follows the change in price, compared to the atr at the moment where the pivot point is detected
// The atr percentage determines if the trendline follows the rate of change of the atr or a fraction ( value < 100) or a multiple ( value > 100) of that 

// JD.

// #NotTradingAdvice #DYOR

//  Disclaimer.
// I AM NOT A FINANCIAL ADVISOR.
// THESE IDEAS ARE NOT ADVICE AND ARE FOR EDUCATION PURPOSES ONLY.
// ALWAYS DO YOUR OWN RESEARCH!
//}

study(title = "ATR Based Trendlines - JD", shorttitle="ATR Trendlines - JD", overlay=true)

// Input variables
//{
len         = input(30,    title = "loockback length pivots")
atr_percent = input(100,   title = "atr target percentage", minval = 0) / 100
wicks       = input(true,  title = "Draw lines from wicks (checked) or real bodies (unchecked)?")
do_mono     = input(false, title = "checked = monochrome lines, unchecked = direction colored lines?")
//}


// Initialising color scheme
//{
var color line_color_high = do_mono ? color.teal : color.lime
var color line_color_low = do_mono  ? color.teal : color.fuchsia
//}

/////// Function declarations ///////
//{
angle_to_slope_percent (_degrees) =>
    _slope = (_degrees/100 * atr(len / 2))
//}

/////// Start of main script ///////

// Calculate pivot points    
//{
high_point = fixnan(pivothigh(wicks ? high : (max(close, open)), len, len /2 ))
low_point  = fixnan(pivotlow(wicks ? low : (min(close, open)), len, len / 2))
//}

// plot trendlines //
//{
var line trendline_high = na
var line trendline_low  = na
trendline_high := na
trendline_low  := na

slope_high = atr_percent * angle_to_slope_percent(len / 2)
slope_low  = atr_percent * angle_to_slope_percent(len / 2)

if change(high_point) != 0
    trendline_high := line.new(
     bar_index - len/2, high_point,
     bar_index        , high_point - (slope_high * len / 2), xloc = xloc.bar_index, 
     extend = extend.right, color = line_color_high, style = line.style_dotted, width = 1)

// plot Low trendlines //
if change(low_point) != 0
    trendline_low := line.new(
     bar_index - len/2, low_point,
     bar_index        , low_point + (slope_low * len / 2), xloc = xloc.bar_index,
     extend = extend.right, color = line_color_low, style = line.style_dotted, width = 1)

Opera-Instantánea_2020-08-07_110137_www.tradingview.com_.png