mirror of
https://github.com/bilawalsidhu/gods-eye-view.git
synced 2026-11-04 10:24:02 +00:00
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.
48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
import assert from 'node:assert/strict';
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import test from 'node:test';
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import { normalizeHeading, roundHeadingDegrees } from './headingDegrees.js';
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test('normalizeHeading wraps into [0, 360) and reads a non-finite value as 0', () => {
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assert.equal(normalizeHeading(370), 10);
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assert.equal(normalizeHeading(-10), 350);
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assert.equal(normalizeHeading(720), 0);
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assert.equal(normalizeHeading(Number.NaN), 0);
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assert.equal(normalizeHeading(Infinity), 0);
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});
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test('roundHeadingDegrees reads 359.5° and above as north, never 360', () => {
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assert.equal(roundHeadingDegrees(359.4), 359);
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assert.equal(roundHeadingDegrees(359.5), 0);
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assert.equal(roundHeadingDegrees(359.6), 0);
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assert.equal(roundHeadingDegrees(360), 0);
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assert.equal(roundHeadingDegrees(0), 0);
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assert.equal(roundHeadingDegrees(194.2), 194);
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});
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test('roundHeadingDegrees wraps negative and multi-turn bearings', () => {
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assert.equal(Object.is(roundHeadingDegrees(-0.4), 0), true);
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assert.equal(roundHeadingDegrees(-0.6), 359);
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assert.equal(roundHeadingDegrees(-1), 359);
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assert.equal(roundHeadingDegrees(719.6), 0);
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assert.equal(roundHeadingDegrees(-360.6), 359);
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});
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test('roundHeadingDegrees returns null for a value that is not finite', () => {
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for (const value of [
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Number.NaN,
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Infinity,
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-Infinity,
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null,
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undefined,
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'12',
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]) {
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assert.equal(roundHeadingDegrees(value), null);
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}
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});
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test('normalizeHeading keeps a positive bearing just under a half degree', () => {
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assert.equal(roundHeadingDegrees(0.49999999999999), 0);
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assert.equal(roundHeadingDegrees(359.49999999999994), 359);
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assert.equal(normalizeHeading(-1e-15) < 360, true);
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});
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