Comparative bar in Vue Bullet chart component

20 Dec 20236 minutes to read

The line marker that runs perpendicular to the orientation of the graph is known as the Comparative Measure and it is used as a target marker to compare against the feature measure value. This is also called as the Target Bar in the Bullet Chart. To display the target bar, the targetField should be mapped to the appropriate field from the datasource.

app.vue

<template>
  <div>
      <ejs-bulletchart id="bulletChart"
        :dataSource="data"
        valueField="value"
        targetField="target"
        :minimum="minimum"
        :maximum="maximum"
        :interval="interval"
        title="Sales Rate"
      >
      <e-bullet-range-collection>
          <e-bullet-range end="35" color="red"></e-bullet-range>
          <e-bullet-range end="50" color="blue"></e-bullet-range>
          <e-bullet-range end="100" color="green"></e-bullet-range>
        </e-bullet-range-collection>
      </ejs-bulletchart>
  </div>
</template>
<script>
import Vue from 'vue';
import { BulletChartPlugin } from '@syncfusion/ej2-vue-charts';
Vue.use(BulletChartPlugin);

export default {
  data () {
    return {
      data: [{ value: 55, target: 75 }],
      minimum: 0, maximum: 100, interval: 20
    }
  }
}
</script>

Types of target bar

The shape of the target bar can be customized using the targetTypes property and it supports Circle, Cross, and Rect shapes. The default type of the target bar is Rect.

app.vue

<template>
  <div>
      <ejs-bulletchart id="bulletChart"
        :dataSource="data"
        valueField="value"
        targetField="target"
        :minimum="minimum"
        :maximum="maximum"
        :interval="interval"
        title="Sales Rate"
        :targetTypes="targetTypes"
        :animation="animation"
      >
      <e-bullet-range-collection>
          <e-bullet-range end="35" color="red"></e-bullet-range>
          <e-bullet-range end="50" color="blue"></e-bullet-range>
          <e-bullet-range end="100" color="green"></e-bullet-range>
        </e-bullet-range-collection>
      </ejs-bulletchart>
  </div>
</template>
<script>
import Vue from 'vue';
import { BulletChartPlugin } from '@syncfusion/ej2-vue-charts';
Vue.use(BulletChartPlugin);

export default {
  data () {
    return {
      data: [{ value: 55, target: 75 }],
      minimum: 0, maximum: 100, interval: 20, targetTypes: ["Circle"], animation: { enable: false }
    }
  }
}
</script>

Target bar customization

The following properties can be used to customize the target bar. Also, you can bind the color for the target bar from dataSource for the bullet chart.

• targetColor - Specifies the fill color of target bar.
• targetWidth - Specifies the width of target bar.

app.vue

<template>
  <div>
      <ejs-bulletchart id="bulletChart"
        :dataSource="data"
        valueField="value"
        targetField="target"
        :minimum="minimum"
        :maximum="maximum"
        :interval="interval"
        title="Sales Rate"
        targetColor="color"
        targetWidth=15
      >
      <e-bullet-range-collection>
          <e-bullet-range end="35" color="red"></e-bullet-range>
          <e-bullet-range end="50" color="blue"></e-bullet-range>
          <e-bullet-range end="100" color="green"></e-bullet-range>
        </e-bullet-range-collection>
      </ejs-bulletchart>
  </div>
</template>
<script>
import Vue from 'vue';
import { BulletChartPlugin } from '@syncfusion/ej2-vue-charts';
Vue.use(BulletChartPlugin);

export default {
  data () {
    return {
      data: [{ value: 55, target: 75, color: 'red' }],
      minimum: 0, maximum: 100, interval: 20
    }
  }
}
</script>