mirror of
https://github.com/bilawalsidhu/gods-eye-view.git
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Sameh Khamis
0e90a03de7
The transit, ALPR, vessel, CCTV and flight/military context fixes each wrapped 359.5° to north with an inline Math.round(x) % 360. They now call roundHeadingDegrees in src/data/headingDegrees.js, which also wraps negative and multi-turn bearings. normalizeHeading moves there with it, and cockpitMath re-exports it so existing imports keep working. It now adds a turn only to a negative remainder, so a bearing just under half a degree keeps its precision. The awareness, Local ADS-B, cockpit wind, cockpit heading and Street Level readouts use the same helper. The Cockpit's TRACK ACQUIRED signal rounded without wrapping and could read COURSE 360°; it now uses formatHeadingReadout, which shows --- for a track that is not finite.
20 lines
793 B
JavaScript
20 lines
793 B
JavaScript
/** Normalize a heading into the [0, 360) range; 0 when it is not finite. */
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export function normalizeHeading(value) {
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if (!Number.isFinite(value)) return 0;
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// Only a negative remainder takes the extra turn, so a positive bearing
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// keeps its precision (0.49999999999999 must not become 360.5).
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const remainder = value % 360;
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const wrapped = remainder < 0 ? remainder + 360 : remainder;
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return wrapped === 360 ? 0 : wrapped;
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}
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/**
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* Whole degrees for display, 0–359. 359.5° and above rounds to north (0),
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* and negative or multi-turn values wrap. Null when the value is not finite,
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* so each caller keeps its own placeholder.
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*/
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export function roundHeadingDegrees(value) {
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if (!Number.isFinite(value)) return null;
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return Math.round(normalizeHeading(value)) % 360;
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}
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