By default, gauge will be displayed with an axis. Each axis contains its own ranges, pointers and annotation.
You can customize the width and color of an axis line by using
lineStyle property.
Background for an axis can be customized by using
background property.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective lineStyle = {{
width: 2,
color: 'red'
}} background = 'rgba(0, 128, 128, 0.3)'>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));Circular gauge axis can sweep from 0 to 360 degrees.
By default start angle of an axis is 200 degree and end angle is 160 degree and you can customize this option by using
startAngle and
endAngle property.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective startAngle = {270} endAngle = {90}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));The direction property
enables you to render the gauge axis either in ClockWise or in AntiClockWise direction.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective direction = 'AntiClockWise'>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));By default, radius of an axis is calculated based on the available size.
You can customize this, by using radius property.
It takes value either in percentage or in pixel.
In Pixel
You can set the radius of the gauge in pixel as demonstrated below,
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective radius = '150'>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));In Percentage
By setting value in percentage, gauge gets its dimension with respect to its available size. For example, when the radius is ‘50%’, gauge renders to half of the available size.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective radius = '50%'>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));You can customize the height,
color and
width of major ticks and minor ticks by
using majorTicks
and minorTicks property.
By default, interval for
majorTicks will be calculated automatically
and also you can customize the interval for major and minor ticks using
interval property.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective majorTicks = {{
interval: 10,
color:'red',
height: 10,
width: 3
}} minorTicks = {{
interval: 5,
color:'green',
height: 5,
width: 2
}}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));Tick Position
Both minor and major ticks can be moved by using
offset and
position property.
The offset defines
the distance between the axis and ticks. By default, offset value is 0.
The position will place
the ticks either inside or outside of the axis.
By default, ticks will be placed inside the axis.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective majorTicks = {{
interval: 10,
color:'red',
height: 10,
width: 3,
position: 'Inside',
offset: 5
}} minorTicks = {{
interval: 5,
color:'green',
height: 5,
width: 2,
position: 'Inside',
offset: 5
}}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));Labels of an axis can be customized by using
font property in
labelStyle options.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective labelStyle = {{
font: {
color: 'red',
size: '20px',
fontWeight: 'Bold'
}
}}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));Label Position
Labels can be moved by using offset or
position property.
The offset defines the distance between the labels and ticks.
By default, offset value is 0.
The position will place the labels either inside or outside of the axis.
By default, labels will be placed inside the axis.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective labelStyle = {{
position: 'Outside',
offset: 5
}}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));Auto Angle
Labels can be swept along the axis angle by enabling autoAngle property.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective labelStyle = {{
autoAngle: true
}}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));Smart Labels
When an axis makes a complete circle, then the first and last label of the axis will get overlap with each other.
In this scenario, you can either hide 1st or last label using hiddenLabel property.
When hiddenLabel value is First,
then the 1st label will be hidden and when the
hiddenLabel value is ‘Last’,
then the last label will be hidden.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective minimum = {0} maximum = {12} startAngle = {0} endAngle = {360}
majorTicks = {{
interval: 1,
position: 'Inside',
height: 10
}} minorTicks = {{
interval: 0.2,
position: 'Inside',
height: 5
}} labelStyle = {{
position: 'Inside',
hiddenLabel: 'First'
}}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));Label Format
Axis labels can be formatted by using format
property in labelStyle and its supports all globalize format.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective labelStyle = {{
format: 'p1'
}}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));The following table describes the result of applying some commonly used label formats on numeric values.
| Label Value | Label Format property value | Result | Description |
| 1000 | n1 | 1000.0 | The Number is rounded to 1 decimal place |
| 1000 | n2 | 1000.00 | The Number is rounded to 2 decimal place |
| 1000 | n3 | 1000.000 | The Number is rounded to 3 decimal place |
| 0.01 | p1 | 1.0% | The Number is converted to percentage with 1 decimal place |
| 0.01 | p2 | 1.00% | The Number is converted to percentage with 2 decimal place |
| 0.01 | p3 | 1.000% | The Number is converted to percentage with 3 decimal place |
| 1000 | c1 | $1,000.0 | The Currency symbol is appended to number and number is rounded to 1 decimal place |
| 1000 | c2 | $1,000.00 | The Currency symbol is appended to number and number is rounded to 2 decimal place |
Custom Label Format
Axis labels support custom label format using placeholder like {value}°C, in which the value represent the axis label e.g 20°C.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective labelStyle = {{
format: '{value}°C'
}}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));The minimum and
maximum properties
enables you to customize the start and end values of an axis.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective minimum = {50} maximum = {250}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));In addition to the default axis, you can add n number of axis to a gauge. Each axis will have its own ranges, pointers, annotations and customization options.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { CircularGaugeComponent, AxesDirective, AxisDirective, PointerModel } from '@syncfusion/ej2-react-circulargauge';
ReactDOM.render(
<CircularGaugeComponent id='circulargauge'>
<AxesDirective>
<AxisDirective majorTicks = {{
interval: 10,
position: 'Inside',
height: 10
}} minorTicks = {{
interval: 5,
position: 'Inside',
height: 5
}} pointers = {[] as PointerModel[]}>
</AxisDirective>
<AxisDirective majorTicks = {{
interval: 10,
position: 'Inside',
height: 10
}} minorTicks = {{
interval: 5,
position: 'Inside',
height: 5
}} pointers = {[] as PointerModel[]}>
</AxisDirective>
</AxesDirective>
</CircularGaugeComponent>,document.getElementById('circulargauge'));