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Bubble in React Maps component

6 Feb 202624 minutes to read

This section shows how to customize the appearance of the bubbles in the Maps component. The below video demonstrates the same.

Bubbles in the Maps component provide a visual representation of data values across geographical regions. They appear as circular or square shapes scattered over map areas, with their size proportional to the underlying data values. To enable bubbles, set the visible property of BubbleDirective to true. Then, bind the data source to the dataSource property and specify the field containing numerical data using the valuePath property.

export let world_map = // paste the World map from World.json GeoJSON file.
import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population" dataSource={[{color: 'green', name: 'India', population: '38332521' },
            {color: 'purple', name: 'New Zealand', population: '19651127' },
            {color: 'blue', name: 'Pakistan', population: '3090416' }]} minRadius={20} maxRadius={40} />
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);
import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population" dataSource={[{color: 'green', name: 'India', population: '38332521' },
            {color: 'purple', name: 'New Zealand', population: '19651127' },
            {color: 'blue', name: 'Pakistan', population: '3090416' }]} minRadius={20} maxRadius={40} />
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);

Bubble shapes

The following types of shapes are available to render the bubbles in Maps.

  • Circle
  • Square

By default, bubbles render as Circle. To display square-shaped bubbles, set the bubbleType property of BubbleDirective to Square.

import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population" bubbleType="Square" dataSource={[{ name: 'India', population: '38332521' },
                        { name: 'Pakistan', population: '3090416' }]} minRadius={20} maxRadius={40} />
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);
import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population" bubbleType="Square" dataSource={[{ name: 'India', population: '38332521' },
                        { name: 'Pakistan', population: '3090416' }]} minRadius={20} maxRadius={40} />
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);

Customization

The BubbleDirective provides the following properties to customize the appearance of bubbles in the Maps component.

  • border – To customize the color, width and opacity of the border of the bubbles in Maps.
  • fill – To apply the color for bubbles in Maps.
  • opacity – To apply opacity to the bubbles in Maps.
  • animationDelay - To change the time delay in the transition for bubbles.
  • animationDuration - To change the time duration of animation for bubbles.
import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population"
                                         dataSource={[
                                            { name: 'India', population: '38332521' },
                                            { name: 'Pakistan', population: '3090416' },
                                            { name: 'New Zealand', population: '19651127' }
                                         ]}
                                         minRadius={5} maxRadius={40} fill="green"
                                         animationDelay={100} animationDuration={1000} opacity={1}
                                         border= />
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);
import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population"
                                         dataSource={[
                                            { name: 'India', population: '38332521' },
                                            { name: 'Pakistan', population: '3090416' },
                                            { name: 'New Zealand', population: '19651127' }
                                         ]}
                                         minRadius={5} maxRadius={40} fill="green"
                                         animationDelay={100} animationDuration={1000} opacity={1}
                                         border= />
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);

Setting colors to the bubbles from the data source

The color for each bubble in the Maps can be set using the colorValuePath property of BubbleDirective. The value for the colorValuePath property is the field name from the data source of the BubbleDirective which contains the color values.

import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population"
                                         dataSource={[
                                            { name: 'India', population: '38332521', color: 'blue' },
                                            { name: 'New Zealand', population: '19651127', color: '#c2d2d6' },
                                            { name: 'Pakistan', population: '3090416', color: '#09156d' }
                                         ]}
                                         minRadius={20} maxRadius={40} colorValuePath="color"/>
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);
import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population"
                                         dataSource={[
                                            { name: 'India', population: '38332521', color: 'blue' },
                                            { name: 'New Zealand', population: '19651127', color: '#c2d2d6' },
                                            { name: 'Pakistan', population: '3090416', color: '#09156d' }
                                         ]}
                                         minRadius={20} maxRadius={40} colorValuePath="color"/>
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);

Setting the range of the bubble size

The size of the bubbles is calculated from the values got from the valuePath property. The range for the radius of the bubbles can be modified using minRadius and maxRadius properties.

import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population" dataSource={[{name: 'India', population: '38332521' },
            {name: 'New Zealand', population: '19651127' },
            {name: 'Pakistan', population: '3090416' }]} minRadius={5} maxRadius={80} />
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);
import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population" dataSource={[{name: 'India', population: '38332521' },
            {name: 'New Zealand', population: '19651127' },
            {name: 'Pakistan', population: '3090416' }]} minRadius={5} maxRadius={80} />
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);

Multiple bubble groups

Multiple bubble groups can be added to the Maps component by defining an array of bubble configuration objects in the BubbleDirective property. Each bubble group can be customized independently. The following example demonstrates gender-wise population ratio using two different bubble groups.

import { world_map } from 'world-map.ts';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import {
  MapsComponent,
  LayersDirective,
  LayerDirective,
  Inject,
} from '@syncfusion/ej2-react-maps';
import {
  BubblesDirective,
  BubbleDirective,
  Bubble,
} from '@syncfusion/ej2-react-maps';
export function App() {
  return (
    <MapsComponent>
      <Inject services={[Bubble]} />
      <LayersDirective>
        <LayerDirective
          shapeData={world_map}
          shapeDataPath="country"
          shapePropertyPath="name"
        >
          <BubblesDirective>
            <BubbleDirective
              visible={true}
              valuePath="femaleRatio"
              colorValuePath="femaleRatioColor"
              dataSource={[
                {
                  country: 'United States',
                  femaleRatio: 50.50442726,
                  maleRatio: 49.49557274,
                  femaleRatioColor: '#99295D',
                  maleRatioColor: 'blue',
                },
                {
                  country: 'India',
                  femaleRatio: 48.18032713,
                  maleRatio: 51.81967287,
                  femaleRatioColor: '#2E769F',
                  maleRatioColor: '#c2d2d6',
                },
                {
                  country: 'Oman',
                  femaleRatio: 34.15597234,
                  maleRatio: 65.84402766,
                  femaleRatioColor: '#816F28',
                  maleRatioColor: 'orange',
                },
                {
                  country: 'United Arab Emirates',
                  femaleRatio: 27.59638942,
                  maleRatio: 72.40361058,
                  femaleRatioColor: '#364A98',
                  maleRatioColor: 'orange',
                },
              ]}
              minRadius={5}
              maxRadius={20}
            />
            <BubbleDirective
              visible={true}
              bubbleType="Circle"
              valuePath="maleRatio"
              colorValuePath="maleRatioColor"
              dataSource={[
                {
                  country: 'France',
                  femaleRatio: 50.50442726,
                  maleRatio: 49.49557274,
                  femaleRatioColor: 'green',
                  maleRatioColor: '#c2d2d6',
                },
                {
                  country: 'China',
                  femaleRatio: 48.18032713,
                  maleRatio: 51.81967287,
                  femaleRatioColor: 'blue',
                  maleRatioColor: '#09156d',
                },
                {
                  country: 'Kazakhstan',
                  femaleRatio: 34.15597234,
                  maleRatio: 65.84402766,
                  femaleRatioColor: '#09156d',
                  maleRatioColor: 'yellow',
                },
                {
                  country: 'Poland',
                  femaleRatio: 27.59638942,
                  maleRatio: 72.40361058,
                  femaleRatioColor: '#09156d',
                  maleRatioColor: 'orange',
                },
              ]}
              minRadius={15}
              maxRadius={25}
              opacity={0.4}
            />
          </BubblesDirective>
        </LayerDirective>
      </LayersDirective>
    </MapsComponent>
  );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);
import { world_map } from 'world-map.ts';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import {
  MapsComponent,
  LayersDirective,
  LayerDirective,
  Inject,
} from '@syncfusion/ej2-react-maps';
import {
  BubblesDirective,
  BubbleDirective,
  Bubble,
} from '@syncfusion/ej2-react-maps';
export function App() {
  return (
    <MapsComponent>
      <Inject services={[Bubble]} />
      <LayersDirective>
        <LayerDirective
          shapeData={world_map}
          shapeDataPath="country"
          shapePropertyPath="name"
        >
          <BubblesDirective>
            <BubbleDirective
              visible={true}
              valuePath="femaleRatio"
              colorValuePath="femaleRatioColor"
              dataSource={[
                {
                  country: 'United States',
                  femaleRatio: 50.50442726,
                  maleRatio: 49.49557274,
                  femaleRatioColor: '#99295D',
                  maleRatioColor: 'blue',
                },
                {
                  country: 'India',
                  femaleRatio: 48.18032713,
                  maleRatio: 51.81967287,
                  femaleRatioColor: '#2E769F',
                  maleRatioColor: '#c2d2d6',
                },
                {
                  country: 'Oman',
                  femaleRatio: 34.15597234,
                  maleRatio: 65.84402766,
                  femaleRatioColor: '#816F28',
                  maleRatioColor: 'orange',
                },
                {
                  country: 'United Arab Emirates',
                  femaleRatio: 27.59638942,
                  maleRatio: 72.40361058,
                  femaleRatioColor: '#364A98',
                  maleRatioColor: 'orange',
                },
              ]}
              minRadius={5}
              maxRadius={20}
            />
            <BubbleDirective
              visible={true}
              bubbleType="Circle"
              valuePath="maleRatio"
              colorValuePath="maleRatioColor"
              dataSource={[
                {
                  country: 'France',
                  femaleRatio: 50.50442726,
                  maleRatio: 49.49557274,
                  femaleRatioColor: 'green',
                  maleRatioColor: '#c2d2d6',
                },
                {
                  country: 'China',
                  femaleRatio: 48.18032713,
                  maleRatio: 51.81967287,
                  femaleRatioColor: 'blue',
                  maleRatioColor: '#09156d',
                },
                {
                  country: 'Kazakhstan',
                  femaleRatio: 34.15597234,
                  maleRatio: 65.84402766,
                  femaleRatioColor: '#09156d',
                  maleRatioColor: 'yellow',
                },
                {
                  country: 'Poland',
                  femaleRatio: 27.59638942,
                  maleRatio: 72.40361058,
                  femaleRatioColor: '#09156d',
                  maleRatioColor: 'orange',
                },
              ]}
              minRadius={15}
              maxRadius={25}
              opacity={0.4}
            />
          </BubblesDirective>
        </LayerDirective>
      </LayersDirective>
    </MapsComponent>
  );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);

Enable tooltip for bubble

To enable tooltips for bubbles, set the visible property of tooltipSettings to true. The tooltip content is specified using the valuePath property, which should be set to the field name from the data source that contains the tooltip values. Additionally, custom HTML content can be displayed in the tooltip using the template property.

import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble, MapsTooltip } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble, MapsTooltip]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population" dataSource={[
                                        { name: 'India', population: '38332521' },
                                        { name: 'New Zealand', population: '19651127' },
                                        { name: 'Pakistan', population: '3090416' }]}
                                        minRadius={5} maxRadius={80}
                                        tooltipSettings= />
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);
import { world_map } from 'world-map.ts';
import * as React from "react";
import * as ReactDOM from "react-dom";
import { MapsComponent, LayersDirective, LayerDirective, Inject } from '@syncfusion/ej2-react-maps';
import { BubblesDirective, BubbleDirective, Bubble, MapsTooltip } from '@syncfusion/ej2-react-maps';
export function App() {
    return(
        <MapsComponent >
        <Inject services={[Bubble, MapsTooltip]}/>
            <LayersDirective>
                <LayerDirective shapeData={world_map} shapeDataPath="name" shapePropertyPath="name">
                    <BubblesDirective>
                        <BubbleDirective visible={true} valuePath="population" dataSource={[
                                        { name: 'India', population: '38332521' },
                                        { name: 'New Zealand', population: '19651127' },
                                        { name: 'Pakistan', population: '3090416' }]}
                                        minRadius={5} maxRadius={80}
                                        tooltipSettings= />
                    </BubblesDirective>
                </LayerDirective>
            </LayersDirective>
        </MapsComponent>
    );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);