//primaryXAxis: CategoryAxis(),
        // Chart title
        //title: ChartTitle(text: 'Half yearly sales analysis'),
        // Enable legend
        legend: Legend(isVisible: false),
        // Enable tooltip
        tooltipBehavior: TooltipBehavior(enable: true),
        zoomPanBehavior: ZoomPanBehavior(
            enablePinching: true,
            zoomMode: ZoomMode.x,
            enablePanning: true),
        series: <ChartSeries<DskPoint, num>>[
          LineSeries<DskPoint, num>(
            dataSource: <DskPoint>[
              DskPoint(0, 35),
              DskPoint(1, 28),
              DskPoint(2, 34),
              DskPoint(3, 32),
              DskPoint(4, 40)
            ],
            xValueMapper: (DskPoint sales, _) => sales.x,
            yValueMapper: (DskPoint sales, _) => sales.y,
            dataLabelSettings: DataLabelSettings(isVisible: true),
            //markerSettings: MarkerSettings(isVisible: true, shape: DataMarkerType.rectangle),
             markerSettings: MarkerSettings(
                isVisible: true,
                shape: DataMarkerType.image,
                imageUrl: 'images/truck.png'),
            // Enable data label
          ),
          ScatterSeries<DskPoint, num>(
              dataSource: <DskPoint>[
                DskPoint(1, 10)
              ],
              xValueMapper: (DskPoint sales, _) => sales.x,
              yValueMapper: (DskPoint sales, _) => sales.y,
              //markerSettings: MarkerSettings(isVisible: true, shape: DataMarkerType.rectangle),
              markerSettings: MarkerSettings(
                  isVisible: true,
                  shape: DataMarkerType.image,
                  imageUrl: 'images/truck.png'),
              name: 'India'),
        ]),
  )),`