How show Image on axis value of flutter graph - flutter

Question

I want to set an image on the index of the Stacked Graph of a flutter on the x-axis.
I created a graph class for this. but I don't know how to add an image on the index of the x-axis like in the picture.
I used (https://pub.dev/packages/syncfusion_flutter_charts/example) this package for graph implementation.
CustomChart.dart
import 'package:climate_karma/utils/values/constant_colors.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_charts/charts.dart';
import '../model/chartData.dart';
class CustomChart extends StatefulWidget {
const CustomChart({Key? key}) : super(key: key);
#override
State<CustomChart> createState() => _CustomChartState();
}
class _CustomChartState extends State<CustomChart> {
#override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
height: 150,
child: Row(
children: [
Container(
width: 48,
color: Colors.white,
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: [
Container(
margin: EdgeInsets.only(top: 25),
child: Icon(Icons.electric_car,size: 30),
),
Container(
margin: EdgeInsets.only(top: 25),
child: Icon(Icons.electric_car,size: 30,),
)
],
),
),
Flexible(
child: SfCartesianChart(
primaryXAxis: CategoryAxis(
isVisible: false,
interval: 1,
),
primaryYAxis: NumericAxis(interval: 1,maximum: 6),
backgroundColor: Colors.white,
series: <ChartSeries>[
StackedBarSeries<ChartData, String>(
dataSource: ChartData.chartDataList,
color: ConstantColors.greenVoilrtColor,
xValueMapper: (ChartData data, _) => data.name,
yValueMapper: (ChartData data, _) => data.index
),
StackedBarSeries<ChartData, String>(
dataSource: ChartData.chartDataList,
color: ConstantColors.orengeColor,
xValueMapper: (ChartData data, _) => data.name,
yValueMapper: (ChartData data, _) =>data.index,
),
StackedBarSeries<ChartData, String>(
dataSource: ChartData.chartDataList,
color: ConstantColors.yellowColor,
xValueMapper: (ChartData data, _) => data.name,
yValueMapper: (ChartData data, _) => data.index
),
StackedBarSeries<ChartData, String>(
dataSource: ChartData.chartDataList,
color: ConstantColors.zestColor,
xValueMapper: (ChartData data, _) => data.name,
yValueMapper: (ChartData data, _) => data.index
),
StackedBarSeries<ChartData, String>(
dataSource: ChartData.chartDataList,
color: ConstantColors.bianchiGreenColor,
xValueMapper: (ChartData data, _) => data.name,
yValueMapper: (ChartData data, _) => data.index
)
]
),
),
],
)
)
);
}
}
CharData.dart
import 'dart:ui';
import 'package:flutter_svg/flutter_svg.dart';
import 'package:flutter/material.dart';
class ChartData{
String name;
String image;
Widget material;
num index;
ChartData({required this.index,required this.name, required this.image,required this.material});
static List<ChartData> chartDataList = [
ChartData(index: 0,name: "elec", image: "assets/images/icon_power.svg",material: SvgPicture.asset("assets/images/icon_power.svg")) ,
ChartData(index: 1.3,name: "elec", image: "assets/images/icon_transport.svg",material: SvgPicture.asset("assets/images/icon_power.svg")),
ChartData(index: 1.3,name: "elec", image: "assets/images/icon_power.svg",material: SvgPicture.asset("assets/images/icon_power.svg")),
ChartData(index: 1.5,name: "elec", image: "assets/images/icon_power.svg",material: SvgPicture.asset("assets/images/icon_power.svg")),
ChartData(index: 1.6,name: "elec", image: "assets/images/icon_power.svg",material: SvgPicture.asset("assets/images/icon_power.svg")),
ChartData(index: 4,name: "fuel", image: "assets/images/icon_power.svg",material: SvgPicture.asset("assets/images/icon_power.svg")),
ChartData(index: 5,name: "fuel", image: "assets/images/icon_transport.svg",material: SvgPicture.asset("assets/images/icon_power.svg")),
];
}