Troispoils/ac2re.weblivemap
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troispoils 2024-05-07 18:01:11 +02:00
parent dd63653413
commit cab9de1e90
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public/scripts/modules/math.js Normal file
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const CENTER = 127.5;
export function coordToCardinal(lat, lng) {
// Vérifier que les valeurs de lat et lng sont dans la plage spécifiée
if (lat > 0 || lat < -255 || lng < 0 || lng > 255) {
return "Coordonnées invalides";
}
let cardinalLng = 0;
if (lng < CENTER) cardinalLng = 100 - (lng * 100 / CENTER);
else if (lng > CENTER) cardinalLng = (lng - CENTER) * 100 / CENTER;
else if (lng === CENTER) cardinalLng = 0;
let cardinalLat = 0;
lat = lat * -1;
if (lat < CENTER) cardinalLat = 100 - (lat * 100 / CENTER);
else if (lat > CENTER) cardinalLat = (lat - CENTER) * 100 / CENTER;
else if (lat === 0) cardinalLat = 0;
// Déterminer les directions
let directionLat = lat < CENTER ? "N" : "S";
let directionLng = lng < CENTER ? "W" : "E";
// Retourner la chaîne de caractères résultante
return cardinalLat.toFixed(1) + " " + directionLat + " - " + cardinalLng.toFixed(1) + " " + directionLng;
}
export function GetLandBlockId(ev, map) {
var latlng = ev.latlng;
var pointATmp = map.project(latlng, 4);
const blockSize = 16; // Taille d'un bloc
var y = Math.floor((4080 - pointATmp.y) / blockSize);
var x = Math.floor(pointATmp.x / blockSize);
return L.point(x, y);
}