trend line [odnac]

This indicator automatically detects swing highs and swing lows, and draws trendlines connecting valid highs to highs and lows to lows. Lines automatically terminate when price breaks through them. Four pivot detection methods are supported.

• High Trendline (Descending Resistance): Drawn only when the current swing high is lower than the previous swing high
• Low Trendline (Ascending Support): Drawn only when the current swing low is higher than the previous swing low
• Wick Breach Filter: If any candle wick (high/low) between two pivot points touches or crosses the trendline, the line is not drawn
• Breakout Detection: When the closing price crosses the trendline, the line is terminated at that bar

1. Swing Confirm
   Detects highs and lows based on left/right bar count, but only accepts pivot points that pass an additional bearish/bullish confirmation condition. Produces fewer but more reliable swing points with less noise.
2. Pivot High/Low
   Uses raw ta.pivothigh / ta.pivotlow values directly. Any point that is higher or lower than the surrounding N bars on each side is recognized as a pivot.
3. Williams Fractal
   Confirms a pivot when the center bar's high/low is greater or less than N bars on both sides. The default value of 2 produces the classic 5-bar fractal pattern.
4. Donchian
   Uses the highest high and lowest low over N bars as pivot points. A simple and clean channel-based pivot detection method.

• Trendlines are drawn based on confirmed pivot points only, with no repainting
• The wick breach filter may result in fewer lines being drawn. This is intentional — only clean, high-confidence trendlines are displayed
• Each mode has its own independent parameters, so be sure to adjust settings individually when switching modes