OPEN-SOURCE SCRIPT
Trendline Indicator with Dynamic Breakpoint Tracking
Trendline Indicator with Dynamic Breakpoint Tracking
This indicator automates the process of manually drawing and redrawing trendlines as price structure evolves, rather than plotting a single static line.
How it works
The script tracks confirmed swing highs and lows (pivots). It starts in downtrend mode, watching the most recent swing low:
When that low is broken, the line resets. It anchors to the top of the prior move and snaps its second point to the next confirmed swing high that's lower than that top — drawing a fresh descending resistance line.
As price continues down, each new broken low re-anchors the line the same way, so the resistance line keeps stepping down along the sequence of lower highs.
If price closes at or above the current resistance level, the script flips to uptrend mode and begins drawing an ascending support line using the mirror-image logic: anchoring from the bottom of the move and snapping to the next confirmed higher low.
The two modes alternate automatically as market structure shifts between making lower highs and higher lows.
Dynamic breakpoint tracking
Unlike a fixed trendline, the breakpoints this script uses to define the line are re-evaluated continuously:
If a transition is only halfway confirmed (e.g. resistance broke but no higher low has formed yet) and price reverses back through the original anchor before that confirmation completes, the script recognizes the transition failed and reverts to the prior trend immediately, rather than waiting on a reversal that isn't materializing.
A stale-anchor safeguard prevents the line from getting permanently locked onto an old price level if the market structure it's tracking becomes irrelevant.
Inputs
Pivot Left/Right Bars — sensitivity of swing detection (smaller = faster but noisier, larger = smoother but more lag)
Max bars to search for anchor point — how far back the script looks when re-anchoring
Line colors/width, signal colors, and toggles for trend labels, pivot markers, and the debug status table
Notes
Pivot-based detection is inherently lagging by design (a swing can only be confirmed once bars exist on both sides of it), so the line reacts after structure is confirmed, not in real time.
Built for visualizing trend structure and potential trend-change points — not a standalone buy/sell signal generator. Combine with your own confirmation and risk management.
This indicator automates the process of manually drawing and redrawing trendlines as price structure evolves, rather than plotting a single static line.
How it works
The script tracks confirmed swing highs and lows (pivots). It starts in downtrend mode, watching the most recent swing low:
When that low is broken, the line resets. It anchors to the top of the prior move and snaps its second point to the next confirmed swing high that's lower than that top — drawing a fresh descending resistance line.
As price continues down, each new broken low re-anchors the line the same way, so the resistance line keeps stepping down along the sequence of lower highs.
If price closes at or above the current resistance level, the script flips to uptrend mode and begins drawing an ascending support line using the mirror-image logic: anchoring from the bottom of the move and snapping to the next confirmed higher low.
The two modes alternate automatically as market structure shifts between making lower highs and higher lows.
Dynamic breakpoint tracking
Unlike a fixed trendline, the breakpoints this script uses to define the line are re-evaluated continuously:
If a transition is only halfway confirmed (e.g. resistance broke but no higher low has formed yet) and price reverses back through the original anchor before that confirmation completes, the script recognizes the transition failed and reverts to the prior trend immediately, rather than waiting on a reversal that isn't materializing.
A stale-anchor safeguard prevents the line from getting permanently locked onto an old price level if the market structure it's tracking becomes irrelevant.
Inputs
Pivot Left/Right Bars — sensitivity of swing detection (smaller = faster but noisier, larger = smoother but more lag)
Max bars to search for anchor point — how far back the script looks when re-anchoring
Line colors/width, signal colors, and toggles for trend labels, pivot markers, and the debug status table
Notes
Pivot-based detection is inherently lagging by design (a swing can only be confirmed once bars exist on both sides of it), so the line reacts after structure is confirmed, not in real time.
Built for visualizing trend structure and potential trend-change points — not a standalone buy/sell signal generator. Combine with your own confirmation and risk management.
開源腳本
秉持TradingView一貫精神，這個腳本的創作者將其設為開源，以便交易者檢視並驗證其功能。向作者致敬！您可以免費使用此腳本，但請注意，重新發佈代碼需遵守我們的社群規範。
免責聲明
這些資訊和出版物並非旨在提供，也不構成TradingView提供或認可的任何形式的財務、投資、交易或其他類型的建議或推薦。請閱讀使用條款以了解更多資訊。
開源腳本
秉持TradingView一貫精神，這個腳本的創作者將其設為開源，以便交易者檢視並驗證其功能。向作者致敬！您可以免費使用此腳本，但請注意，重新發佈代碼需遵守我們的社群規範。
免責聲明
這些資訊和出版物並非旨在提供，也不構成TradingView提供或認可的任何形式的財務、投資、交易或其他類型的建議或推薦。請閱讀使用條款以了解更多資訊。