Refactoring

src/lib/ol.ts

@@ -0,0 +1,17 @@
+import { LineString } from 'ol/geom';
+import { getLength } from 'ol/sphere';
+
+export const getFormatedLength = (lineString: LineString) => {
+  const length = getLength(lineString, { projection: 'EPSG:4326' });
+  if (length > 1000) {
+    const l = length / 1000;
+    return ` ${l.toLocaleString(undefined, {
+      minimumFractionDigits: 2,
+      maximumFractionDigits: 2,
+    })} km`;
+  }
+  return ` ${length.toLocaleString(undefined, {
+    minimumFractionDigits: 0,
+    maximumFractionDigits: 0,
+  })} m`;
+};