Gann Fan & Angles

Gann Fan & Angles projects the classical fan — 8×1 down to 1×8 around the 1×1 balance line — from a swing anchor, and makes explicit the decision every fan needs: scale. Slopes here are defined as price units per bar, not screen degrees, so levels and alerts are identical however the chart is zoomed. The build implements Gann angles with an ATR-derived unit by default, sampled at the anchor bar so the fan never drifts as volatility changes.

How to Trade the Gann Fan & Angles?

• Price versus the 1×1: holding above the balance line reads as strength in a rising fan, below as weakness — the panel states the side and alerts catch each crossing.
• Angle-to-angle progression: when a fan line breaks, the next angle out becomes the working reference; the any-angle crossing alerts track the hand-off across enabled lines.
• Zone read: the panel names the pair of angles bracketing price — a quick strength gauge.

Gann Fan & Angles Settings

• Anchor Mode (default Auto): the dominant swing in the lookback, or a chart-placed point; Auto Swing Lookback (default 200) sets the window.
• Fan Direction (default Auto): rising from a low, falling from a high, or inferred.
• Manual Anchor Time / Manual Anchor Price (defaults 01 Jan 2024 / 0.0): the manual pivot, editable after placement.
• Scale Mode (default Auto (ATR)) with ATR Length (14) and ATR Multiplier (1.0): how many price units the 1×1 advances per bar — raise the multiplier to steepen the whole fan.
• Manual Units per Bar (default 1.0): a fixed rate for reproducible cross-chart geometry.
• Angles: 1×1 (balance line) (on), 2×1 & 1×2 (on), 3×1 & 1×3 (off), 4×1 & 1×4 (on), 8×1 & 1×8 (on).
• Angle Labels, Anchor Marker and Info Panel (all on, panel Position Top Right) round out the display.

Frequently Asked Questions

Why doesn't the 1×1 sit at 45 degrees on my chart?

It sits at 45° only when the chart zoom gives one price unit the same screen distance as one bar. Zoom and scale type change the on-screen slope but never the levels — the angle is a rate in units per bar.

How does the fan differ from the Gann Box?

The fan radiates fixed-rate angles from one pivot into the future; the Gann Box overlay subdivides a completed swing between two anchors in price and time. Trend trajectory versus internal structure of a finished range.

Should I use the ATR scale or a manual unit?

Auto (ATR) adapts the unit to the instrument so a fresh fan is usable immediately; manual suits traders who keep a fixed points-per-bar convention per market. Either way, tune the unit until past reactions spread across the fan instead of crowding one line.