Radar Chart in Vue Component

14 Oct 202424 minutes to read

Radar chart

To render a radar series in your chart, you need to follow a few steps to configure it correctly. Here’s a concise guide on how to do this:

Set the series type: Define the series type as Radar in your chart configuration. This indicates that the data should be represented as a radar chart, which is ideal for plotting data points on a circular grid.
Inject the RadarSeries module: Use the provide: { chart: [RadarSeries]} method to inject the RadarSeries module into your chart. This step is essential, as it ensures that the necessary functionalities for rendering radar series are available in your chart.

Composition API (~/src/App.vue)
Options API (~/src/App.vue)
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { x: 2005, y: 28 }, 
  { x: 2006, y: 25 },
  { x: 2007, y: 26 }, 
  { x: 2008, y: 27 },
  { x: 2009, y: 32 }, 
  { x: 2010, y: 35 }, 
  { x: 2011, y: 30 }
];
const primaryXAxis = {
  title: 'Year'
};
const primaryYAxis = {
  title: 'Efficiency',
  labelFormat: '{value}%'
};
const title = "Efficiency of oil-fired power production";

provide('chart', [RadarSeries, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { x: 2005, y: 28 }, 
        { x: 2006, y: 25 },
        { x: 2007, y: 26 }, 
        { x: 2008, y: 27 },
        { x: 2009, y: 32 }, 
        { x: 2010, y: 35 }, 
        { x: 2011, y: 30 }
      ],
      primaryXAxis: {
        title: 'Year'
      },
      primaryYAxis: {
        title: 'Efficiency',
        labelFormat: '{value}%'
      },
      title: "Efficiency of oil-fired power production"
    };
  },
  provide: {
    chart: [RadarSeries, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Draw type

Similar to the polar chart, use the drawType property to change the series plotting type in a Radar chart to line, column, area, range column, spline, scatter, stacking area, spline area, or stacking column. The default value of drawType is Line.

Composition API (~/src/App.vue)
Options API (~/src/App.vue)
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { x: 2005, y: 28 }, 
  { x: 2006, y: 25 },
  { x: 2007, y: 26 }, 
  { x: 2008, y: 27 },
  { x: 2009, y: 32 }, 
  { x: 2010, y: 35 }, 
  { x: 2011, y: 30 }
];
const primaryXAxis = {
  title: 'Year'
};
const primaryYAxis = {
  title: 'Efficiency',
  labelFormat: '{value}%'
};
const title = "Efficiency of oil-fired power production";

provide('chart', [RadarSeries, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { x: 2005, y: 28 }, 
        { x: 2006, y: 25 },
        { x: 2007, y: 26 }, 
        { x: 2008, y: 27 },
        { x: 2009, y: 32 }, 
        { x: 2010, y: 35 }, 
        { x: 2011, y: 30 }
      ],
      primaryXAxis: {
        title: 'Year'
      },
      primaryYAxis: {
        title: 'Efficiency',
        labelFormat: '{value}%'
      },
      title: "Efficiency of oil-fired power production"
    };
  },
  provide: {
    chart: [RadarSeries, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Binding data with series

You can bind data to the chart using the dataSource property within the series configuration. This allows you to connect a JSON dataset or remote data to your chart. To display the data correctly, map the fields from the data to the chart series xName and yName properties.

Composition API (~/src/App.vue)
Options API (~/src/App.vue)
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { x: 2005, y: 28 }, 
  { x: 2006, y: 25 },
  { x: 2007, y: 26 }, 
  { x: 2008, y: 27 },
  { x: 2009, y: 32 }, 
  { x: 2010, y: 35 }, 
  { x: 2011, y: 30 }
];
const primaryXAxis = {
  title: 'Year'
};
const primaryYAxis = {
  title: 'Efficiency',
  labelFormat: '{value}%'
};
const title = "Efficiency of oil-fired power production";

provide('chart', [RadarSeries, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { x: 2005, y: 28 }, 
        { x: 2006, y: 25 },
        { x: 2007, y: 26 }, 
        { x: 2008, y: 27 },
        { x: 2009, y: 32 }, 
        { x: 2010, y: 35 }, 
        { x: 2011, y: 30 }
      ],
      primaryXAxis: {
        title: 'Year'
      },
      primaryYAxis: {
        title: 'Efficiency',
        labelFormat: '{value}%'
      },
      title: "Efficiency of oil-fired power production"
    };
  },
  provide: {
    chart: [RadarSeries, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Customization

Start angle

You can customize the start angle of the radar series using startAngle property. By default, startAngle is 0 degree.

Composition API (~/src/App.vue)
Options API (~/src/App.vue)
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='country' yName='gold' drawType='Column'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, RadarSeries, ColumnSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { country: "USA",       gold: 50 },
  { country: "China",     gold: 40 },
  { country: "Japan",     gold: 70 },
  { country: "Australia", gold: 60 },
  { country: "France",    gold: 50 },
  { country: "Germany",   gold: 40 },
  { country: "Italy",     gold: 40 },
  { country: "Sweden",    gold: 30 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Countries',
  startAngle: 120
};
const primaryYAxis = {
  title: 'Medals'
};
const title = "Olympic Medals";

provide('chart', [Category, RadarSeries, ColumnSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='country' yName='gold' drawType='Column'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, RadarSeries, ColumnSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { country: "USA",       gold: 50 },
        { country: "China",     gold: 40 },
        { country: "Japan",     gold: 70 },
        { country: "Australia", gold: 60 },
        { country: "France",    gold: 50 },
        { country: "Germany",   gold: 40 },
        { country: "Italy",     gold: 40 },
        { country: "Sweden",    gold: 30 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Countries',
        startAngle: 120
      },
      primaryYAxis: {
        title: 'Medals'
      },
      title: "Olympic Medals"
    };
  },
  provide: {
    chart: [Category, RadarSeries, ColumnSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Radius

You can customize the radius of the radar series using coefficient property. By default, coefficient is 100.

Composition API (~/src/App.vue)
Options API (~/src/App.vue)
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='country' yName='gold' drawType='Column'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, RadarSeries, ColumnSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { country: "USA",       gold: 50 },
  { country: "China",     gold: 40 },
  { country: "Japan",     gold: 70 },
  { country: "Australia", gold: 60 },
  { country: "France",    gold: 50 },
  { country: "Germany",   gold: 40 },
  { country: "Italy",     gold: 40 },
  { country: "Sweden",    gold: 30 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Countries',
  coefficient: 80
};
const primaryYAxis = {
  title: 'Medals'
};
const title = "Olympic Medals";

provide('chart', [Category, RadarSeries, ColumnSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='country' yName='gold' drawType='Column'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, RadarSeries, ColumnSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { country: "USA",       gold: 50 },
        { country: "China",     gold: 40 },
        { country: "Japan",     gold: 70 },
        { country: "Australia", gold: 60 },
        { country: "France",    gold: 50 },
        { country: "Germany",   gold: 40 },
        { country: "Italy",     gold: 40 },
        { country: "Sweden",    gold: 30 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Countries',
        coefficient: 80
      },
      primaryYAxis: {
        title: 'Medals'
      },
      title: "Olympic Medals"
    };
  },
  provide: {
    chart: [Category, RadarSeries, ColumnSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Empty points

Data points with null or undefined values are considered empty. Empty data points are ignored and not plotted on the chart.

Mode

Use the mode property to define how empty or missing data points are handled in the series. The default mode for empty points is Gap.

Composition API (~/src/App.vue)
Options API (~/src/App.vue)
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2 :emptyPointSettings='emptyPointSettings'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { x: 2005, y: 28 }, 
  { x: 2006, y: 25 },
  { x: 2007, y: 26 }, 
  { x: 2008, y: null },
  { x: 2009, y: 32 }, 
  { x: 2010, y: 35 }, 
  { x: 2011, y: 30 }
];
const primaryXAxis = {
  title: 'Year'
};
const primaryYAxis = {
  title: 'Efficiency',
  labelFormat: '{value}%'
};
const title = "Efficiency of oil-fired power production";
const emptyPointSettings = {
  mode: 'Zero'
};

provide('chart', [RadarSeries, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2 :emptyPointSettings='emptyPointSettings'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { x: 2005, y: 28 }, 
        { x: 2006, y: 25 },
        { x: 2007, y: 26 }, 
        { x: 2008, y: null },
        { x: 2009, y: 32 }, 
        { x: 2010, y: 35 }, 
        { x: 2011, y: 30 }
      ],
      primaryXAxis: {
        title: 'Year'
      },
      primaryYAxis: {
        title: 'Efficiency',
        labelFormat: '{value}%'
      },
      title: "Efficiency of oil-fired power production",
      emptyPointSettings: {
        mode: 'Zero'
      }
    };
  },
  provide: {
    chart: [RadarSeries, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Fill

Use the fill property to customize the fill color of empty points in the series.

Composition API (~/src/App.vue)
Options API (~/src/App.vue)
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2 :emptyPointSettings='emptyPointSettings' :marker='marker'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { x: 2005, y: 28 }, 
  { x: 2006, y: 25 },
  { x: 2007, y: 26 }, 
  { x: 2008, y: null },
  { x: 2009, y: 32 }, 
  { x: 2010, y: 35 }, 
  { x: 2011, y: 30 }
];
const primaryXAxis = {
  title: 'Year'
};
const primaryYAxis = {
  title: 'Efficiency',
  labelFormat: '{value}%'
};
const title = "Efficiency of oil-fired power production";
const marker = { 
  visible: true, 
  width: 7, 
  height: 7, 
  isFilled: true 
};
const emptyPointSettings = {
  mode: 'Zero',
  fill: 'red'
};

provide('chart', [RadarSeries, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2 :emptyPointSettings='emptyPointSettings' :marker='marker'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { x: 2005, y: 28 }, 
        { x: 2006, y: 25 },
        { x: 2007, y: 26 }, 
        { x: 2008, y: null },
        { x: 2009, y: 32 }, 
        { x: 2010, y: 35 }, 
        { x: 2011, y: 30 }
      ],
      primaryXAxis: {
        title: 'Year'
      },
      primaryYAxis: {
        title: 'Efficiency',
        labelFormat: '{value}%'
      },
      title: "Efficiency of oil-fired power production",
      marker: { 
        visible: true, 
        width: 7, 
        height: 7, 
        isFilled: true 
      },
      emptyPointSettings: {
        mode: 'Zero',
        fill: 'red'
      }
    };
  },
  provide: {
    chart: [RadarSeries, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Border

Use the border property to customize the width and color of the border for empty points.

Composition API (~/src/App.vue)
Options API (~/src/App.vue)
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2 :emptyPointSettings='emptyPointSettings' :marker='marker'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { x: 2005, y: 28 }, 
  { x: 2006, y: 25 },
  { x: 2007, y: 26 }, 
  { x: 2008, y: null },
  { x: 2009, y: 32 }, 
  { x: 2010, y: 35 }, 
  { x: 2011, y: 30 }
];
const primaryXAxis = {
  title: 'Year'
};
const primaryYAxis = {
  title: 'Efficiency',
  labelFormat: '{value}%'
};
const title = "Efficiency of oil-fired power production";
const marker = { 
  visible: true, 
  width: 7, 
  height: 7, 
  isFilled: true 
};
const emptyPointSettings = {
  mode: 'Zero',
  fill: 'red',
  border: { width: 2, color: 'blue' }
};

provide('chart', [RadarSeries, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2 :emptyPointSettings='emptyPointSettings' :marker='marker'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { x: 2005, y: 28 }, 
        { x: 2006, y: 25 },
        { x: 2007, y: 26 }, 
        { x: 2008, y: null },
        { x: 2009, y: 32 }, 
        { x: 2010, y: 35 }, 
        { x: 2011, y: 30 }
      ],
      primaryXAxis: {
        title: 'Year'
      },
      primaryYAxis: {
        title: 'Efficiency',
        labelFormat: '{value}%'
      },
      title: "Efficiency of oil-fired power production",
      marker: { 
        visible: true, 
        width: 7, 
        height: 7, 
        isFilled: true 
      },
      emptyPointSettings: {
        mode: 'Zero',
        fill: 'red',
        border: { width: 2, color: 'blue' }
      }
    };
  },
  provide: {
    chart: [RadarSeries, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Events

Series render

The seriesRender event allows you to customize series properties, such as data, fill, and name, before they are rendered on the chart.

Composition API (~/src/App.vue)
Options API (~/src/App.vue)
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis' :seriesRender='seriesRender'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { x: 2005, y: 28 }, 
  { x: 2006, y: 25 },
  { x: 2007, y: 26 }, 
  { x: 2008, y: 27 },
  { x: 2009, y: 32 }, 
  { x: 2010, y: 35 }, 
  { x: 2011, y: 30 }
];
const primaryXAxis = {
  title: 'Year'
};
const primaryYAxis = {
  title: 'Efficiency',
  labelFormat: '{value}%'
};
const title = "Efficiency of oil-fired power production";

provide('chart', [RadarSeries, LineSeries]);
const seriesRender = function (args) {
  args.fill = '#ff6347';
};

</script>
<style>
  #container {
    height: 350px;
  }
</style>
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis' :seriesRender='seriesRender'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { x: 2005, y: 28 }, 
        { x: 2006, y: 25 },
        { x: 2007, y: 26 }, 
        { x: 2008, y: 27 },
        { x: 2009, y: 32 }, 
        { x: 2010, y: 35 }, 
        { x: 2011, y: 30 }
      ],
      primaryXAxis: {
        title: 'Year'
      },
      primaryYAxis: {
        title: 'Efficiency',
        labelFormat: '{value}%'
      },
      title: "Efficiency of oil-fired power production"
    };
  },
  provide: {
    chart: [RadarSeries, LineSeries]
  },
  methods: {
    seriesRender: function (args) {
      args.fill = '#ff6347';
    }
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Point render

The pointRender event allows you to customize each data point before it is rendered on the chart.

Composition API (~/src/App.vue)
Options API (~/src/App.vue)
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis' :pointRender='pointRender'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2 :marker='marker'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { x: 2005, y: 28 }, 
  { x: 2006, y: 25 },
  { x: 2007, y: 26 }, 
  { x: 2008, y: 27 },
  { x: 2009, y: 32 }, 
  { x: 2010, y: 35 }, 
  { x: 2011, y: 30 }
];
const primaryXAxis = {
  title: 'Year'
};
const primaryYAxis = {
  title: 'Efficiency',
  labelFormat: '{value}%'
};
const title = "Efficiency of oil-fired power production";
const marker = { visible: true };

provide('chart', [RadarSeries, LineSeries]);
const pointRender = function (args) {
  if (args.point.index % 2 !== 0) {
    args.fill = '#ff6347';
  }
  else {
    args.fill = '#009cb8';
  }
};

</script>
<style>
  #container {
    height: 350px;
  }
</style>
<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis' :pointRender='pointRender'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Radar' xName='x' yName='y' drawType='Line' width=2 :marker='marker'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, RadarSeries, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { x: 2005, y: 28 }, 
        { x: 2006, y: 25 },
        { x: 2007, y: 26 }, 
        { x: 2008, y: 27 },
        { x: 2009, y: 32 }, 
        { x: 2010, y: 35 }, 
        { x: 2011, y: 30 }
      ],
      primaryXAxis: {
        title: 'Year'
      },
      primaryYAxis: {
        title: 'Efficiency',
        labelFormat: '{value}%'
      },
      title: "Efficiency of oil-fired power production",
      marker: { visible: true }
    };
  },
  provide: {
    chart: [RadarSeries, LineSeries]
  },
  methods: {
    pointRender: function (args) {
      if (args.point.index % 2 !== 0) {
        args.fill = '#ff6347';
      }
      else {
        args.fill = '#009cb8';
      }
    }
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>