Added route layer to map.

frontend/src/components/Map.vue

@@ -77,14 +77,40 @@ export default {
         style: new Style({
           image: new Circle({
             radius: 6,
-            fill: new Fill({ color: 'red' }),
+            fill: new Fill({ color: 'lightblue' }),
-            stroke: new Stroke({ color: 'black', width: 1 }),
+            stroke: new Stroke({ color: 'blue', width: 1 }),
           }),
           zIndex: Infinity,  // Ensure that points are always displayed above other layers
         }),
       })
     },
 
+    routeLayer(points: Point[]) {
+      this.routeFeatures = []
+      points.forEach((point: Point, index: number) => {
+        if (index === 0) {
+          return
+        }
+
+        const route = new LineString([points[index - 1].getCoordinates(), point.getCoordinates()])
+        const routeFeature = new Feature(route)
+        this.routeFeatures.push(routeFeature)
+      })
+
+      return new VectorLayer({
+        source: new VectorSource({
+          // @ts-ignore
+          features: this.routeFeatures,
+        }),
+        style: new Style({
+          stroke: new Stroke({
+            color: 'cornflowerblue',
+            width: 2,
+          }),
+        }),
+      })
+    },
+
     createMap(gpsPoints: GPSPoint[]) {
       const points = gpsPoints.map((gps: GPSPoint) => {
         const point = new Point([gps.longitude, gps.latitude])
@@ -97,6 +123,7 @@ export default {
         layers: [
           this.osmLayer(),
           this.pointsLayer(points),
+          this.routeLayer(points),
         ],
         view: view
       })
@@ -104,6 +131,7 @@ export default {
       // @ts-expect-error
       this.$refs.popup.bindPopup(map)
       this.bindClick(map)
+      this.bindPointerMove(map)
       return map
     },
 
@@ -149,6 +177,29 @@ export default {
         }
       })
     },
+
+    bindPointerMove(map: Map) {
+      map.on('pointermove', (event) => {
+        const feature = map.forEachFeatureAtPixel(event.pixel, (feature) => feature)
+        const target = map.getTargetElement()
+        if (!target) {
+          return
+        }
+
+        if (feature) {
+          // @ts-expect-error
+          const coords = feature.getGeometry()?.getCoordinates()
+          if (coords?.length === 2 && coords.every((coord: number) => !isNaN(coord))) {
+            target.title = `${coords[1].toFixed(6)}, ${coords[0].toFixed(6)}`
+          }
+
+          target.style.cursor = 'pointer'
+        } else {
+          target.style.cursor = ''
+          target.title = ''
+        }
+      })
+    },
   },
 
   async mounted() {

frontend/src/components/PointInfo.vue

@@ -128,6 +128,7 @@ export default {
 
   p.latlng {
     font-size: 0.8em;
+    margin: -0.25em 0 0.25em 0;
   }
 
   .timestamp {