polylines tooltip content

utils/geometryUtils.js

@@ -0,0 +1,19 @@
+// utils/geometryUtils.js
+
+export const findClosestPoints = (coordinates, newPoint, map) => {
+  if (!map) {
+    console.error("Map is not defined. Cannot find closest points.");
+    return [];
+  }
+
+  let minDist = Infinity;
+  let closestPair = [];
+  for (let i = 1; i < coordinates.length; i++) {
+    const dist = L.LineUtil.pointToSegmentDistance(map.latLngToLayerPoint(newPoint), map.latLngToLayerPoint(coordinates[i - 1]), map.latLngToLayerPoint(coordinates[i]));
+    if (dist < minDist) {
+      minDist = dist;
+      closestPair = [coordinates[i - 1], coordinates[i], i];
+    }
+  }
+  return closestPair;
+};