update waypoint marker positions

lib/pages/gps/gps_page.dart

@@ -115,9 +115,10 @@ class _GpsPageState extends State<GpsPage> {
                   ]),
             zoom: 1,
             interactiveFlags: InteractiveFlag.pinchZoom | InteractiveFlag.drag,
-
-            onPositionChanged: (MapPosition pos, isvalue) {
-              indexController.currentBound = [pos.bounds!];
+            onPositionChanged: (MapPosition pos, bool hasGesture) {
+              if (hasGesture) {
+                indexController.currentBound = [pos.bounds!];
+              }
             },
             onTap: (tapPos, cord) {}, // Hide popup when the map is tapped.
           ),
@@ -126,13 +127,23 @@ class _GpsPageState extends State<GpsPage> {
             MarkerLayer(
               markers: gpsData.map((i) {
                 return Marker(
-                    alignment: Alignment.center,
-                    height: 32.0,
-                    width: 120.0,
+                    width: 30.0, // Fixed width
+                    height: 30.0, // Fixed height
                     point: LatLng(i.lat, i.lon),
-                    child: getMarkerShape(i));
+                    child: getMarkerShape(i),
+                    alignment: Alignment.center);
               }).toList(),
-            )
+            ),
+            // MarkerLayer(
+            //   markers: gpsData.map((i) {
+            //     return Marker(
+            //         alignment: Alignment.center,
+            //         height: 32.0,
+            //         width: 120.0,
+            //         point: LatLng(i.lat, i.lon),
+            //         child: getMarkerShape(i));
+            //   }).toList(),
+            // )
           ],
         ),
       )),