This indicator detects equal highs and lows by comparing prices within user-defined left and right bars using a tolerance percentage. It plots horizontal lines on the price chart for equal highs in one color and lows in another. A screener allows input of mult
Indicator · Pine Script v6 · On the chart
Auto Trendlines using line.*
This indicator automatically identifies structural pivot highs and pivot lows using a fixed 15-bar left and right evaluation window.
GitHub stars55on the repository
Pine versionv6current
Lines of code42
Settings0inputs
LicenceApache-2.0
Last update6 months ago20 Apr 2026
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
42 lines of Pine Script v6 from public/indicators/autotrendline.pine, published under Apache-2.0. Keep the author's credit and licence lines when you reuse it.
//@version=6
indicator("Auto Trendlines using line.*", overlay=true)
// ph_time = time[15]
// log.info("{0}", ph_time)
// var pl_times = array.new_int(0)
// array.unshift(pl_times, time[15])
// Find pivots
leftBars = 15
rightBars = 15
ph = ta.pivothigh(high, leftBars, rightBars)
pl = ta.pivotlow(low, leftBars, rightBars)
// Arrays to store past pivots
var ph_prices = array.new_float(0)
var ph_times = array.new_int(0)
var pl_prices = array.new_float(0)
var pl_times = array.new_int(0)
if not na(ph)
array.unshift(ph_prices, ph)
array.unshift(ph_times, time[rightBars])
if array.size(ph_prices) > 2
array.pop(ph_prices)
array.pop(ph_times)
if not na(pl)
array.unshift(pl_prices, pl)
array.unshift(pl_times, time[rightBars])
if array.size(pl_prices) > 2
array.pop(pl_prices)
array.pop(pl_times)
// Draw lines only on the last bar
if barstate.islast
if array.size(ph_prices) >= 2
line.new(x1=array.get(ph_times, 1), y1=array.get(ph_prices, 1), x2=array.get(ph_times, 0), y2=array.get(ph_prices, 0), xloc=xloc.bar_time, color=color.red, width=3, extend=extend.right, style=line.style_solid)
if array.size(pl_prices) >= 2
line.new(x1=array.get(pl_times, 1), y1=array.get(pl_prices, 1), x2=array.get(pl_times, 0), y2=array.get(pl_prices, 0), xloc=xloc.bar_time, color=color.green, width=3, extend=extend.right, style=line.style_solid)
Overview
Auto Trendlines using line.* stores recent pivot values and timestamps in dynamic arrays and, on the current bar, plots extended trendlines connecting the two most recent high pivots in red and low pivots in green. Overlaying directly on the price chart, it visualizes automated support and resistance lines. The pivot detection relies on hardcoded 15-bar confirmation periods.
- Pivot high and low detection with 15-bar lookback
- Dynamic array storage for recent pivot prices and times
- Extended trendlines drawn connecting recent pivot points
- Overlay rendering on the main price chart
Details
Published by
dcaoyuan on GitHub
Type
Indicator, Pine Script v6
Draws
On the price chart
Category
Trend, Support & resistance
Markets
Any symbol
Timeframes
Any timeframe
Risk Notes
No repainting, lookahead or stacked entries were found in its code or README. That says nothing about how well it works: test it first.
Topics
aicharttradingvibepinescripttechnical-analysispinestock
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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