MissionPlanner.GridUI.map_OnRouteEnter C# (CSharp) Method

        private void map_OnRouteEnter(GMapRoute item)
        {
            string dist;
            if (DistUnits == "Feet")
            {
                dist = ((float)item.Distance * 3280.84f).ToString("0.##") + " ft";
            }
            else
            {
                dist = ((float)item.Distance * 1000f).ToString("0.##") + " m";
            }
            if (marker != null)
            {
                if (routesOverlay.Markers.Contains(marker))
                    routesOverlay.Markers.Remove(marker);
            }

            PointLatLng point = currentMousePosition;

            marker = new GMapMarkerRect(point);
            marker.ToolTip = new GMapToolTip(marker);
            marker.ToolTipMode = MarkerTooltipMode.Always;
            marker.ToolTipText = "Line: " + dist;
            routesOverlay.Markers.Add(marker);
        }