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46 lines
1.7 KiB
JavaScript
46 lines
1.7 KiB
JavaScript
/**
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* @module firmsLabels
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* @description FIRMS-specific presentation formatting retained after the
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* dedicated card canvas moved into the shared world-overlay host.
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*/
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/** Shipped ambient FIRMS card ceiling. Selected fires bypass this cohort. */
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export const FIRMS_AMBIENT_COHORT_LIMIT = 18;
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export const FIRMS_OVERLAY_SOURCE_ID = 'firms';
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/** Refetch-stable identity for one FIRMS detection, including its source feed. */
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export function fireDetectionKey(fire) {
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const lat = Number.isFinite(fire?.lat) ? fire.lat.toFixed(4) : 'x';
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const lon = Number.isFinite(fire?.lon) ? fire.lon.toFixed(4) : 'x';
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const acq = Number.isFinite(fire?.acqMs) && fire.acqMs > 0 ? String(fire.acqMs) : '0';
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const source = satelliteShortName(fire?.satellite)
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|| String(fire?.sensor || '').trim().toUpperCase()
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|| 'x';
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return `firms:${lat}:${lon}:${acq}:${source}`;
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}
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/** Severity accent palette — matches the FIRMS glow-sprite color stops. */
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const ACCENT_RGB = Object.freeze({
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red: '224, 82, 82',
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orange: '240, 178, 62',
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yellow: '244, 227, 108',
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});
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/**
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* Severity stop name → "r, g, b" accent string (defaults to yellow).
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* @param {string} stopName - 'red' | 'orange' | 'yellow'.
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* @returns {string}
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*/
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export function accentForSeverity(stopName) {
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return ACCENT_RGB[stopName] || ACCENT_RGB.yellow;
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}
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/** Raw FIRMS satellite code → short display name (N = Suomi NPP). */
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export function satelliteShortName(satellite) {
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const s = String(satellite || '').trim().toUpperCase();
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if (s === 'N20' || s === 'NOAA-20') return 'N20';
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if (s === 'N21' || s === 'NOAA-21') return 'N21';
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if (s === 'N' || s === 'NPP' || s === 'SUOMI NPP') return 'SNPP';
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return s ? s.slice(0, 6) : '';
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}
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