Horizontal Line Bands: Free TradingView Indicator (Pine Script)

Add It to Your TradingView Chart

1Copy the scriptPress Copy script above, or the copy button on the code below.
2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
3Paste over the templateCreate a new indicator, select all of the template text and paste. Press Save and give it a name.
4Add it to the chartPress Add to chart, then adjust the settings with the gear icon next to its name.

Source Code

143 lines of Pine Script v5 from Tradingview/horizontal-line-bands.pine, published under MPL-2.0 (file header). Keep the author's credit and licence lines when you reuse it.

horizontal-line-bands.pine

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © goodgains


//@version=5
indicator("Horizontal Line Bands", overlay = true, max_lines_count = 500)

// @keywords: horizontal-line-bands, minute-anchor, close-level-lines, tick-offset-bands, inner-band-pair, outer-band-pair, breach-recolor, dashed-lines, dotted-lines, extend-right-lines, lower-timeframe-feed, realtime-minute-close, line-arrays, keep-old-lines, switching-trigger, mintick-offset, bar-index-anchor, level-breach-detection, parallel-bands, debug-labels


line1_amount = input.int(2, minval = 1, title = 'Line One', group = 'Settings', inline ='1')
line1_color = input.color(color.new(color.yellow,0), title = '', group = 'Settings', inline ='1')
line1_style = input.string('Solid', title = '', options = ['Solid', 'Dotted', 'Dashed'], group = 'Settings', inline ='1')
line1_width = input.int(1, title = '', minval = 1, maxval = 5, group = 'Settings', inline ='1')

line2_amount = input.int(6, minval = 1, title = 'Line Two', group = 'Settings', inline ='2')
line2_color = input.color(color.new(color.green,0), title = '', group = 'Settings', inline ='2')
line2_style = input.string('Solid', title = '', options = ['Solid', 'Dotted', 'Dashed'], group = 'Settings', inline ='2')
line2_width = input.int(1, title = '', minval = 1, maxval = 5, group = 'Settings', inline ='2')

closeline_color = input.color(color.new(color.gray,0), title = 'Line Close', group = 'Settings', inline ='3')
closeline_style = input.string('Dashed', title = '', options = ['Solid', 'Dotted', 'Dashed'], group = 'Settings', inline ='3')
closeline_width = input.int(1, title = '', minval = 1, maxval = 5, group = 'Settings', inline ='3')

keep_old_lines = input.bool(true, title = 'Keep Old Lines', group = 'Settings', inline ='4')
color_to_switch = input.color(color.blue, title = 'Switching Color', group = 'Settings', inline ='5')


var float last_confirmed_bar_index = na
last_confirmed_bar_index := barstate.islastconfirmedhistory ? bar_index : last_confirmed_bar_index[1]
plotchar(bar_index == last_confirmed_bar_index ? true : false, title = 'Start Calculating', char = 'x', color = color.white)


var line_close = array.new_line(100,na)
var line1_upper = array.new_line(100,na)
var line1_lower = array.new_line(100,na)
var line2_upper = array.new_line(100,na)
var line2_lower = array.new_line(100,na)

varip float line1_upper_value = 0 
varip float line1_lower_value = 0
varip float line2_upper_value = 0 
varip float line2_lower_value = 0

varip float min_high = na
varip float min_low = na
varip float min_close = na
var bool min_confirm = na

// request minute data
min_highs =  request.security_lower_tf(syminfo.tickerid, '1', high)
min_lows =  request.security_lower_tf(syminfo.tickerid, '1', low)
min_closes =  request.security_lower_tf(syminfo.tickerid, '1', close)
min_confirms =  request.security_lower_tf(syminfo.tickerid, '1', barstate.isrealtime)

min_high := array.last(min_highs)
min_low := array.last(min_lows)
min_close := array.last(min_closes)
min_confirm := array.last(min_confirms)


// function to draw lines
f_drawlines(line_close, line1_upper, line1_lower, line2_upper, line2_lower, anchor) =>

    array.unshift(line_close, line.new(x1 = bar_index, y1 = anchor, x2 = bar_index+1, y2 = anchor, xloc = xloc.bar_index,
         extend = extend.right, color = closeline_color, width = closeline_width,
         style = (closeline_style == 'Solid' ? line.style_solid : closeline_style == 'Dashed' ? line.style_dashed : closeline_style == 'Dotted' ? line.style_dotted : line.style_solid)))

    array.unshift(line1_upper, line.new(x1 = bar_index, y1 = anchor + syminfo.mintick*line1_amount, x2 = bar_index+1, y2 = anchor + syminfo.mintick*line1_amount, xloc = xloc.bar_index,
         extend = extend.right, color = line1_color, width = line1_width,
         style = (line1_style == 'Solid' ? line.style_solid : line1_style == 'Dashed' ? line.style_dashed : line1_style == 'Dotted' ? line.style_dotted : line.style_solid)))

    array.unshift(line1_lower, line.new(x1 = bar_index, y1 = anchor - syminfo.mintick*line1_amount, x2 = bar_index+1, y2 = anchor - syminfo.mintick*line1_amount, xloc = xloc.bar_index,
         extend = extend.right, color = line1_color, width = line1_width,
         style = (line1_style == 'Solid' ? line.style_solid : line1_style == 'Dashed' ? line.style_dashed : line1_style == 'Dotted' ? line.style_dotted : line.style_solid)))

    array.unshift(line2_upper, line.new(x1 = bar_index, y1 = anchor + syminfo.mintick*line2_amount, x2 = bar_index+1, y2 = anchor + syminfo.mintick*line2_amount, xloc = xloc.bar_index,
         extend = extend.right, color = line2_color, width = line2_width,
         style = (line2_style == 'Solid' ? line.style_solid : line2_style == 'Dashed' ? line.style_dashed : line2_style == 'Dotted' ? line.style_dotted : line.style_solid)))

    array.unshift(line2_lower, line.new(x1 = bar_index, y1 = anchor - syminfo.mintick*line2_amount, x2 = bar_index+1, y2 = anchor - syminfo.mintick*line2_amount, xloc = xloc.bar_index,
         extend = extend.right, color = line2_color, width = line2_width,
         style = (line2_style == 'Solid' ? line.style_solid : line2_style == 'Dashed' ? line.style_dashed : line2_style == 'Dotted' ? line.style_dotted : line.style_solid)))


 // first bar_index line
if bar_index == last_confirmed_bar_index
    f_drawlines(line_close, line1_upper, line1_lower, line2_upper, line2_lower, array.last(min_closes)) 

// past confirmed bar_index
if bar_index > last_confirmed_bar_index

    // get line values
    line1_upper_value := line.get_y1(array.first(line1_upper))
    line1_lower_value := line.get_y1(array.first(line1_lower))

    line2_upper_value := line.get_y1(array.first(line2_upper))
    line2_lower_value := line.get_y1(array.first(line2_lower))

    // // extend x2 to current bar's bar_index
    line.set_x2(array.first(line_close), bar_index)
    line.set_x2(array.first(line1_upper), bar_index)
    line.set_x2(array.first(line1_lower), bar_index)
    line.set_x2(array.first(line2_upper), bar_index)
    line.set_x2(array.first(line2_lower), bar_index)

    // replace colors line 1
    if min_high >= line1_upper_value
        line.set_color(array.first(line1_upper), color_to_switch)
    if min_low <= line1_lower_value
        line.set_color(array.first(line1_lower), color_to_switch)

    // replace colors line 2 
    if min_high >= line2_upper_value or min_low <= line2_lower_value
        line.set_color(array.first(line_close), color_to_switch)
        line.set_color(array.first(line1_upper), color_to_switch)
        line.set_color(array.first(line1_lower), color_to_switch)
        line.set_color(array.first(line2_upper), color_to_switch)
        line.set_color(array.first(line2_lower), color_to_switch)

        // make new lines / delete old lines on the bars closing update
        if min_confirm
            if not keep_old_lines
                line.delete(array.first(line_close))
                line.delete(array.first(line1_upper))
                line.delete(array.first(line1_lower))
                line.delete(array.first(line2_upper))
                line.delete(array.first(line2_lower))

            // end extension since lines aren't being deleted
            line.set_extend(array.first(line_close), extend.none)
            line.set_extend(array.first(line1_upper), extend.none)
            line.set_extend(array.first(line1_lower), extend.none)
            line.set_extend(array.first(line2_upper), extend.none)
            line.set_extend(array.first(line2_lower), extend.none)
            
        // draw new lines
        f_drawlines(line_close, line1_upper, line1_lower, line2_upper, line2_lower, min_close)
        

// bgcolor(bar_index > last_confirmed_bar_index ? color.gray : na)
label.new(bar_index, 24150, str.tostring(min_confirm), color = color.white)
label.new(bar_index, min_close, text = str.tostring(min_close), color = color.white)

Overview

Horizontal Line Bands requests 1-minute high, low, and close values from security to calculate anchor points. Horizontal lines are drawn at specific levels with options for multiple lines in two groups, each customizable in color, style, and width. A closing line with dashed style is also drawn. The script stores lines in arrays and allows keeping old lines. It draws directly on the price chart. A notable limitation is that it repaints on the live bar.

horizontal line bands
lower timeframe levels
line arrays
support resistance
breach recolor

Details

Published by

g-moe on GitHub

Code credit

goodgains, as written in the script's header

Type

Indicator, Pine Script v5

Draws

On the price chart

Markets

Any symbol

Timeframes

Any timeframe

Risk Notes

Signals can change on the live bar or after it closes (repainting)

File

Tradingview/horizontal-line-bands.pine

Repository

github.com/g-moe/Trading-Indicators. See its other scripts in the library

Settings

The inputs you can change from the gear icon on the chart. Defaults are the author's.

Setting	Type	Default	Variable
Line One	`int`	`2`	`line1_amount`
line1_color	`color`	`color.new(color.yellow,0)`	`line1_color`
line1_style	`string`	`Solid`	`line1_style`
line1_width	`int`	`1`	`line1_width`
Line Two	`int`	`6`	`line2_amount`
line2_color	`color`	`color.new(color.green,0)`	`line2_color`
line2_style	`string`	`Solid`	`line2_style`
line2_width	`int`	`1`	`line2_width`
Line Close	`color`	`color.new(color.gray,0)`	`closeline_color`
closeline_style	`string`	`Dashed`	`closeline_style`
closeline_width	`int`	`1`	`closeline_width`
Keep Old Lines	`bool`	`true`	`keep_old_lines`

Show all 13 settings

Setting	Type	Default	Variable
Switching Color	`color`	`color.blue`	`color_to_switch`

Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.

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