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Tooltip

Tooltip for the accumulation chart can be enabled by using the enable property.

Source
Preview
app.vue
<template>
    <div id="app">
         <ejs-accumulationchart id="container" :tooltip='tooltip'>
            <e-accumulation-series-collection>
                <e-accumulation-series :dataSource='seriesData' xName='x' yName='y' radius='70%'> </e-accumulation-series>
            </e-accumulation-series-collection>
        </ejs-accumulationchart>
    </div>
</template>
<script>
import Vue from "vue";
import { AccumulationChartPlugin, PieSeries, AccumulationTooltip } from "@syncfusion/ej2-vue-charts";

Vue.use(AccumulationChartPlugin);

export default {
  data() {
    return {
      seriesData: [
           { x: 'Jan', y: 3 }, { x: 'Feb', y: 3.5 },
           { x: 'Mar', y: 7 }, { x: 'Apr', y: 13.5 },
           { x: 'May', y: 19 }, { x: 'Jun', y: 23.5 },
           { x: 'Jul', y: 26 }, { x: 'Aug', y: 25 },
            { x: 'Sep', y: 21 }, { x: 'Oct', y: 15 }
            ],
       tooltip:{enable: true}
    };
  },
  provide: {
     accumulationchart: [PieSeries, AccumulationTooltip]
  }
};
</script>
<style>
 #container {
     height: 350px;
 }
</style>

Note: To use tooltip feature, inject the AccumulationTooltip into the provide.

We can specify header for the tooltip using header property.

Source
Preview
app.vue
<template>
    <div id="app">
         <ejs-accumulationchart id="container" :tooltip='tooltip'>
            <e-accumulation-series-collection>
                <e-accumulation-series :dataSource='seriesData' xName='x' yName='y' radius='70%'> </e-accumulation-series>
            </e-accumulation-series-collection>
        </ejs-accumulationchart>
    </div>
</template>
<script>
import Vue from "vue";
import { AccumulationChartPlugin, PieSeries, AccumulationTooltip } from "@syncfusion/ej2-vue-charts";

Vue.use(AccumulationChartPlugin);

export default {
  data() {
    return {
      seriesData: [
           { x: 'Jan', y: 3 }, { x: 'Feb', y: 3.5 },
           { x: 'Mar', y: 7 }, { x: 'Apr', y: 13.5 },
           { x: 'May', y: 19 }, { x: 'Jun', y: 23.5 },
           { x: 'Jul', y: 26 }, { x: 'Aug', y: 25 },
            { x: 'Sep', y: 21 }, { x: 'Oct', y: 15 }
            ],
       tooltip:{enable: true, header:"Pie Chart"}
    };
  },
  provide: {
     accumulationchart: [PieSeries, AccumulationTooltip]
  }
};
</script>
<style>
 #container {
     height: 350px;
 }
</style>

Format

By default, tooltip shows information of x and y value in points. In addition to that, you can show more information in tooltip. For example the format ${series.name} ${point.x} shows series name and point x value.

Source
Preview
app.vue
<template>
    <div id="app">
         <ejs-accumulationchart id="container" :tooltip='tooltip'>
            <e-accumulation-series-collection>
                <e-accumulation-series :dataSource='seriesData' xName='x' yName='y' radius='70%'> </e-accumulation-series>
            </e-accumulation-series-collection>
        </ejs-accumulationchart>
    </div>
</template>
<script>
import Vue from "vue";
import { AccumulationChartPlugin, PieSeries, AccumulationTooltip } from "@syncfusion/ej2-vue-charts";

Vue.use(AccumulationChartPlugin);

export default {
  data() {
    return {
      seriesData: [
           { x: 'Jan', y: 3 }, { x: 'Feb', y: 3.5 },
           { x: 'Mar', y: 7 }, { x: 'Apr', y: 13.5 },
           { x: 'May', y: 19 }, { x: 'Jun', y: 23.5 },
           { x: 'Jul', y: 26 }, { x: 'Aug', y: 25 },
            { x: 'Sep', y: 21 }, { x: 'Oct', y: 15 }
            ],
       tooltip:{enable: true, format: '${point.x} : <b>${point.y}%</b>'}
    };
  },
  provide: {
     accumulationchart: [PieSeries, AccumulationTooltip]
  }
};
</script>
<style>
 #container {
     height: 350px;
 }
</style>

Tooltip Template

Any HTML element can be displayed in the tooltip by using the template property.

Source
Preview
app.vue
<template>
    <div id="app">
         <ejs-accumulationchart id="container" :tooltip='tooltip'>
            <e-accumulation-series-collection>
                <e-accumulation-series :dataSource='seriesData' xName='x' yName='y' radius='70%'> </e-accumulation-series>
            </e-accumulation-series-collection>
        </ejs-accumulationchart>
    </div>
</template>
<script>
import Vue from "vue";
import { AccumulationChartPlugin, PieSeries, AccumulationTooltip } from "@syncfusion/ej2-vue-charts";

Vue.use(AccumulationChartPlugin);

export default {
  data() {
    return {
      seriesData: [
           { x: 'Jan', y: 3 }, { x: 'Feb', y: 3.5 },
           { x: 'Mar', y: 7 }, { x: 'Apr', y: 13.5 },
           { x: 'May', y: 19 }, { x: 'Jun', y: 23.5 },
           { x: 'Jul', y: 26 }, { x: 'Aug', y: 25 },
            { x: 'Sep', y: 21 }, { x: 'Oct', y: 15 }
            ],
       tooltip:{
           enable: true,
           template:  "<div id='templateWrap' style='background-color:#bd18f9;border-radius: 3px; float: right;padding: 2px;line-height: 20px;text-align: center;'>"+
        "<img src='sun_annotation.png' />" +
        "<div style='color:white; font-family:Roboto; font-style: medium; fontp-size:14px;float: right;padding: 2px;line-height: 20px;text-align: center;padding-right:6px'><span>${y}</span></div></div>"
        }
    };
  },
  provide: {
     accumulationchart: [PieSeries, AccumulationTooltip]
  }
};
</script>
<style>
 #container {
     height: 350px;
 }
</style>

Customization

The fill and border properties are used to customize the background color and border of the tooltip respectively. The textStyle property in the tooltip is used to customize the font of the tooltip text.

Source
Preview
app.vue
<template>
    <div id="app">
         <ejs-accumulationchart id="container" :tooltip='tooltip'>
            <e-accumulation-series-collection>
                <e-accumulation-series :dataSource='seriesData' xName='x' yName='y' radius='70%'> </e-accumulation-series>
            </e-accumulation-series-collection>
        </ejs-accumulationchart>
    </div>
</template>
<script>
import Vue from "vue";
import { AccumulationChartPlugin, PieSeries, AccumulationTooltip } from "@syncfusion/ej2-vue-charts";

Vue.use(AccumulationChartPlugin);

export default {
  data() {
    return {
      seriesData: [
           { x: 'Jan', y: 3 }, { x: 'Feb', y: 3.5 },
           { x: 'Mar', y: 7 }, { x: 'Apr', y: 13.5 },
           { x: 'May', y: 19 }, { x: 'Jun', y: 23.5 },
           { x: 'Jul', y: 26 }, { x: 'Aug', y: 25 },
            { x: 'Sep', y: 21 }, { x: 'Oct', y: 15 }
            ],
       tooltip:{
           enable: true,
             format: '${series.name} ${point.x} : ${point.y}',
            //fill for tooltip
            fill: '#7bb4eb',
            //border for tooltip
            border: {
                width: 2,
                color: 'grey'
        }
        }
    };
  },
  provide: {
     accumulationchart: [PieSeries, AccumulationTooltip]
  }
};
</script>
<style>
 #container {
     height: 350px;
 }
</style>

To customize individual tooltip

Using tooltipRender event, you can customize a tooltip for particular point. event, you can customize a tooltip for particular point.

Source
Preview
app.vue
<template>
    <div id="app">
         <ejs-accumulationchart id="container" :tooltip='tooltip' :tooltipRender='tooltipRender'>
            <e-accumulation-series-collection>
                <e-accumulation-series :dataSource='seriesData' xName='x' yName='y' radius='70%'> </e-accumulation-series>
            </e-accumulation-series-collection>
        </ejs-accumulationchart>
    </div>
</template>
<script>
import Vue from "vue";
import { AccumulationChartPlugin, PieSeries, AccumulationTooltip } from "@syncfusion/ej2-vue-charts";

Vue.use(AccumulationChartPlugin);

export default {
  data() {
    return {
      seriesData: [
           { x: 'Jan', y: 3 }, { x: 'Feb', y: 3.5 },
           { x: 'Mar', y: 7 }, { x: 'Apr', y: 13.5 },
           { x: 'May', y: 19 }, { x: 'Jun', y: 23.5 },
           { x: 'Jul', y: 26 }, { x: 'Aug', y: 25 },
            { x: 'Sep', y: 21 }, { x: 'Oct', y: 15 }
            ],
       tooltip:{
           enable: true
        }
    };
  },
  provide: {
     accumulationchart: [PieSeries, AccumulationTooltip]
  },
  methods: {
      tooltipRender: function(args) {
     if (args.point.index === 3) {
              args.text = args.point.x + '' + ':' + args.point.y + '' + ' ' +'customtext';
              args.textStyle.color = '#f48042';
        }
    }
  }
};
</script>
<style>
 #container {
     height: 350px;
 }
</style>

Tooltip Mapping Name

By default, tooltip shows information of x and y value in points. You can show more information from datasource in tooltip by using the tooltipMappingName property of the tooltip. You can use the ${point.tooltip} as place holders to display the specified tooltip content.

Source
Preview
app.vue
<template>
    <div id="app">
         <ejs-accumulationchart id="container" :tooltip='tooltip'>
            <e-accumulation-series-collection>
                <e-accumulation-series :dataSource='seriesData' xName='x' yName='y' tooltipMappingName='text' radius='70%'> </e-accumulation-series>
            </e-accumulation-series-collection>
        </ejs-accumulationchart>
    </div>
</template>
<script>
import Vue from "vue";
import { AccumulationChartPlugin, PieSeries, AccumulationTooltip } from "@syncfusion/ej2-vue-charts";

Vue.use(AccumulationChartPlugin);

export default {
  data() {
    return {
      seriesData: [
                    { x: 'Jan', y: 13, text: 'Jan: 13' }, { x: 'Feb', y: 13, text: 'Feb: 13' },
                    { x: 'Mar', y: 17, text: 'Mar: 17' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' }
            ],
       tooltip:{
           enable: true, format: '${point.tooltip}'
        }
    };
  },
  provide: {
     accumulationchart: [PieSeries, AccumulationTooltip]
  },
};
</script>
<style>
 #container {
     height: 350px;
 }
</style>
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