35 lines
No EOL
1.2 KiB
JavaScript
35 lines
No EOL
1.2 KiB
JavaScript
const CENTER = 127.5;
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export function coordToCardinal(lat, lng) {
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// Vérifier que les valeurs de lat et lng sont dans la plage spécifiée
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if (lat > 0 || lat < -255 || lng < 0 || lng > 255) {
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return "Coordonnées invalides";
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}
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let cardinalLng = 0;
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if (lng < CENTER) cardinalLng = 100 - (lng * 100 / CENTER);
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else if (lng > CENTER) cardinalLng = (lng - CENTER) * 100 / CENTER;
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else if (lng === CENTER) cardinalLng = 0;
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let cardinalLat = 0;
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lat = lat * -1;
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if (lat < CENTER) cardinalLat = 100 - (lat * 100 / CENTER);
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else if (lat > CENTER) cardinalLat = (lat - CENTER) * 100 / CENTER;
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else if (lat === 0) cardinalLat = 0;
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// Déterminer les directions
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let directionLat = lat < CENTER ? "N" : "S";
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let directionLng = lng < CENTER ? "W" : "E";
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// Retourner la chaîne de caractères résultante
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return cardinalLat.toFixed(1) + " " + directionLat + " - " + cardinalLng.toFixed(1) + " " + directionLng;
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}
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export function GetLandBlockId(ev, map) {
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var latlng = ev.latlng;
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var pointATmp = map.project(latlng, 4);
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const blockSize = 16; // Taille d'un bloc
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var y = Math.floor((4080 - pointATmp.y) / blockSize);
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var x = Math.floor(pointATmp.x / blockSize);
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return L.point(x, y);
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} |