Web Components Point Chart
The Ignite UI for Web Components Point Chart renders a collection of points. Values are represented on the y-axis (labels on the left side) and categories are displayed on the x-axis (bottom labels). These charts emphasize the amount of change over a period of time or compare multiple items as well as the relationship of parts of a whole by displaying the total of the plotted values.
Web Components Point Chart Example
You can create the Web Components Point Chart in the IgcCategoryChartComponent
control by binding your data to ItemsSource
property and setting chartType
property to Point enum, as shown in the example below.
export class CountryRenewableElectricityItem {
public constructor(init: Partial<CountryRenewableElectricityItem>) {
Object.assign(this, init);
}
public year: string;
public europe: number;
public china: number;
public america: number;
}
export class CountryRenewableElectricity extends Array<CountryRenewableElectricityItem> {
public constructor(items: Array<CountryRenewableElectricityItem> | number = -1) {
if (Array.isArray(items)) {
super(...items);
} else {
const newItems = [
new CountryRenewableElectricityItem(
{
year: `2009`,
europe: 34,
china: 21,
america: 19
}),
new CountryRenewableElectricityItem(
{
year: `2010`,
europe: 43,
china: 26,
america: 24
}),
new CountryRenewableElectricityItem(
{
year: `2011`,
europe: 66,
china: 29,
america: 28
}),
new CountryRenewableElectricityItem(
{
year: `2012`,
europe: 69,
china: 32,
america: 26
}),
new CountryRenewableElectricityItem(
{
year: `2013`,
europe: 58,
china: 47,
america: 38
}),
new CountryRenewableElectricityItem(
{
year: `2014`,
europe: 40,
china: 46,
america: 31
}),
new CountryRenewableElectricityItem(
{
year: `2015`,
europe: 78,
china: 50,
america: 19
}),
new CountryRenewableElectricityItem(
{
year: `2016`,
europe: 13,
china: 90,
america: 52
}),
new CountryRenewableElectricityItem(
{
year: `2017`,
europe: 78,
china: 132,
america: 50
}),
new CountryRenewableElectricityItem(
{
year: `2018`,
europe: 40,
china: 134,
america: 34
}),
new CountryRenewableElectricityItem(
{
year: `2018`,
europe: 40,
china: 134,
america: 34
}),
new CountryRenewableElectricityItem(
{
year: `2019`,
europe: 80,
china: 96,
america: 38
}),
];
super(...newItems.slice(0));
}
}
}
tsimport { IgcLegendModule, IgcCategoryChartModule } from 'igniteui-webcomponents-charts';
import { IgcLegendComponent, IgcCategoryChartComponent } from 'igniteui-webcomponents-charts';
import { CountryRenewableElectricityItem, CountryRenewableElectricity } from './CountryRenewableElectricity';
import { ModuleManager } from 'igniteui-webcomponents-core';
import "./index.css";
ModuleManager.register(
IgcLegendModule,
IgcCategoryChartModule
);
export class Sample {
private legend: IgcLegendComponent
private chart: IgcCategoryChartComponent
private _bind: () => void;
constructor() {
var legend = this.legend = document.getElementById('legend') as IgcLegendComponent;
var chart = this.chart = document.getElementById('chart') as IgcCategoryChartComponent;
this._bind = () => {
chart.dataSource = this.countryRenewableElectricity;
chart.legend = this.legend;
}
this._bind();
}
private _countryRenewableElectricity: CountryRenewableElectricity = null;
public get countryRenewableElectricity(): CountryRenewableElectricity {
if (this._countryRenewableElectricity == null)
{
this._countryRenewableElectricity = new CountryRenewableElectricity();
}
return this._countryRenewableElectricity;
}
}
new Sample();
ts<!DOCTYPE html>
<html>
<head>
<title>Sample | Ignite UI | Web Components | infragistics</title>
<meta charset="UTF-8" />
<link rel="shortcut icon" href="https://static.infragistics.com/xplatform/images/browsers/wc.png" >
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Kanit&display=swap" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Titillium Web" />
<link rel="stylesheet" href="https://static.infragistics.com/xplatform/css/samples/shared.v8.css" />
<link rel="stylesheet" href="/src/index.css" type="text/css" />
</head>
<body>
<div id="root">
<div class="container sample">
<div class="legend-title">
Renewable Electricity Generated
</div>
<div class="legend">
<igc-legend
name="legend"
id="legend"
orientation="Horizontal">
</igc-legend>
</div>
<div class="container fill">
<igc-category-chart
name="chart"
id="chart"
chart-type="Point"
is-horizontal-zoom-enabled="false"
is-vertical-zoom-enabled="false"
y-axis-title="TWh"
y-axis-title-left-margin="10"
y-axis-title-right-margin="5"
y-axis-label-left-margin="0"
computed-plot-area-margin-mode="Series"
crosshairs-snap-to-data="true">
</igc-category-chart>
</div>
</div>
</div>
<!-- This script is needed only for parcel and it will be excluded for webpack -->
<% if (false) { %><script src="src/index.ts"></script><% } %>
</body>
</html>
html/* shared styles are loaded from: */
/* https://static.infragistics.com/xplatform/css/samples */
css
Like this sample? Get access to our complete Ignite UI for Web Components toolkit and start building your own apps in minutes. Download it for free.
Web Components Point Chart with Single Series
In the following example, the Web Components Point Chart plots a single data source by automatically selecting numeric data column for y-axis and non-numeric data column for x-axis.
export class CountryRenewableElectricityItem {
public constructor(init: Partial<CountryRenewableElectricityItem>) {
Object.assign(this, init);
}
public year: string;
public europe: number;
public china: number;
public america: number;
}
export class CountryRenewableElectricity extends Array<CountryRenewableElectricityItem> {
public constructor(items: Array<CountryRenewableElectricityItem> | number = -1) {
if (Array.isArray(items)) {
super(...items);
} else {
const newItems = [
new CountryRenewableElectricityItem(
{
year: `2009`,
europe: 34,
china: 21,
america: 19
}),
new CountryRenewableElectricityItem(
{
year: `2010`,
europe: 43,
china: 26,
america: 24
}),
new CountryRenewableElectricityItem(
{
year: `2011`,
europe: 66,
china: 29,
america: 28
}),
new CountryRenewableElectricityItem(
{
year: `2012`,
europe: 69,
china: 32,
america: 26
}),
new CountryRenewableElectricityItem(
{
year: `2013`,
europe: 58,
china: 47,
america: 38
}),
new CountryRenewableElectricityItem(
{
year: `2014`,
europe: 40,
china: 46,
america: 31
}),
new CountryRenewableElectricityItem(
{
year: `2015`,
europe: 78,
china: 50,
america: 19
}),
new CountryRenewableElectricityItem(
{
year: `2016`,
europe: 13,
china: 90,
america: 52
}),
new CountryRenewableElectricityItem(
{
year: `2017`,
europe: 78,
china: 132,
america: 50
}),
new CountryRenewableElectricityItem(
{
year: `2018`,
europe: 40,
china: 134,
america: 34
}),
new CountryRenewableElectricityItem(
{
year: `2018`,
europe: 40,
china: 134,
america: 34
}),
new CountryRenewableElectricityItem(
{
year: `2019`,
europe: 80,
china: 96,
america: 38
}),
];
super(...newItems.slice(0));
}
}
}
tsimport { IgcCategoryChartModule } from 'igniteui-webcomponents-charts';
import { IgcCategoryChartComponent } from 'igniteui-webcomponents-charts';
import { CountryRenewableElectricityItem, CountryRenewableElectricity } from './CountryRenewableElectricity';
import { ModuleManager } from 'igniteui-webcomponents-core';
import "./index.css";
ModuleManager.register(
IgcCategoryChartModule
);
export class Sample {
private chart: IgcCategoryChartComponent
private _bind: () => void;
constructor() {
var chart = this.chart = document.getElementById('chart') as IgcCategoryChartComponent;
this._bind = () => {
chart.dataSource = this.countryRenewableElectricity;
}
this._bind();
}
private _countryRenewableElectricity: CountryRenewableElectricity = null;
public get countryRenewableElectricity(): CountryRenewableElectricity {
if (this._countryRenewableElectricity == null)
{
this._countryRenewableElectricity = new CountryRenewableElectricity();
}
return this._countryRenewableElectricity;
}
}
new Sample();
ts<!DOCTYPE html>
<html>
<head>
<title>Sample | Ignite UI | Web Components | infragistics</title>
<meta charset="UTF-8" />
<link rel="shortcut icon" href="https://static.infragistics.com/xplatform/images/browsers/wc.png" >
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Kanit&display=swap" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Titillium Web" />
<link rel="stylesheet" href="https://static.infragistics.com/xplatform/css/samples/shared.v8.css" />
<link rel="stylesheet" href="/src/index.css" type="text/css" />
</head>
<body>
<div id="root">
<div class="container sample">
<div class="legend-title">
Renewable Electricity Generated
</div>
<div class="container fill">
<igc-category-chart
name="chart"
id="chart"
chart-type="Point"
is-horizontal-zoom-enabled="false"
is-vertical-zoom-enabled="false"
included-properties="year, europe"
y-axis-title="TWh"
y-axis-title-left-margin="10"
y-axis-title-right-margin="5"
y-axis-label-left-margin="0"
computed-plot-area-margin-mode="Series"
crosshairs-snap-to-data="true">
</igc-category-chart>
</div>
</div>
</div>
<!-- This script is needed only for parcel and it will be excluded for webpack -->
<% if (false) { %><script src="src/index.ts"></script><% } %>
</body>
</html>
html/* shared styles are loaded from: */
/* https://static.infragistics.com/xplatform/css/samples */
css
Web Components Point Chart with Multiple Series
Since the Web Components Point Chart allows you to combine multiple series and compare or see how they change over time, let’s see how easy it is to achieve this. All we need to do is bind to a data source containing the data for China and the USA, and the point chart will automatically update to fit the additional data.
export class CountryRenewableElectricityItem {
public constructor(init: Partial<CountryRenewableElectricityItem>) {
Object.assign(this, init);
}
public year: string;
public europe: number;
public china: number;
public america: number;
}
export class CountryRenewableElectricity extends Array<CountryRenewableElectricityItem> {
public constructor(items: Array<CountryRenewableElectricityItem> | number = -1) {
if (Array.isArray(items)) {
super(...items);
} else {
const newItems = [
new CountryRenewableElectricityItem(
{
year: `2009`,
europe: 34,
china: 21,
america: 19
}),
new CountryRenewableElectricityItem(
{
year: `2010`,
europe: 43,
china: 26,
america: 24
}),
new CountryRenewableElectricityItem(
{
year: `2011`,
europe: 66,
china: 29,
america: 28
}),
new CountryRenewableElectricityItem(
{
year: `2012`,
europe: 69,
china: 32,
america: 26
}),
new CountryRenewableElectricityItem(
{
year: `2013`,
europe: 58,
china: 47,
america: 38
}),
new CountryRenewableElectricityItem(
{
year: `2014`,
europe: 40,
china: 46,
america: 31
}),
new CountryRenewableElectricityItem(
{
year: `2015`,
europe: 78,
china: 50,
america: 19
}),
new CountryRenewableElectricityItem(
{
year: `2016`,
europe: 13,
china: 90,
america: 52
}),
new CountryRenewableElectricityItem(
{
year: `2017`,
europe: 78,
china: 132,
america: 50
}),
new CountryRenewableElectricityItem(
{
year: `2018`,
europe: 40,
china: 134,
america: 34
}),
new CountryRenewableElectricityItem(
{
year: `2018`,
europe: 40,
china: 134,
america: 34
}),
new CountryRenewableElectricityItem(
{
year: `2019`,
europe: 80,
china: 96,
america: 38
}),
];
super(...newItems.slice(0));
}
}
}
tsimport { IgcLegendModule, IgcCategoryChartModule } from 'igniteui-webcomponents-charts';
import { IgcLegendComponent, IgcCategoryChartComponent } from 'igniteui-webcomponents-charts';
import { CountryRenewableElectricityItem, CountryRenewableElectricity } from './CountryRenewableElectricity';
import { ModuleManager } from 'igniteui-webcomponents-core';
import "./index.css";
ModuleManager.register(
IgcLegendModule,
IgcCategoryChartModule
);
export class Sample {
private legend: IgcLegendComponent
private chart: IgcCategoryChartComponent
private _bind: () => void;
constructor() {
var legend = this.legend = document.getElementById('legend') as IgcLegendComponent;
var chart = this.chart = document.getElementById('chart') as IgcCategoryChartComponent;
this._bind = () => {
chart.dataSource = this.countryRenewableElectricity;
chart.legend = this.legend;
}
this._bind();
}
private _countryRenewableElectricity: CountryRenewableElectricity = null;
public get countryRenewableElectricity(): CountryRenewableElectricity {
if (this._countryRenewableElectricity == null)
{
this._countryRenewableElectricity = new CountryRenewableElectricity();
}
return this._countryRenewableElectricity;
}
}
new Sample();
ts<!DOCTYPE html>
<html>
<head>
<title>Sample | Ignite UI | Web Components | infragistics</title>
<meta charset="UTF-8" />
<link rel="shortcut icon" href="https://static.infragistics.com/xplatform/images/browsers/wc.png" >
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Kanit&display=swap" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Titillium Web" />
<link rel="stylesheet" href="https://static.infragistics.com/xplatform/css/samples/shared.v8.css" />
<link rel="stylesheet" href="/src/index.css" type="text/css" />
</head>
<body>
<div id="root">
<div class="container sample">
<div class="legend-title">
Renewable Electricity Generated
</div>
<div class="legend">
<igc-legend
name="legend"
id="legend"
orientation="Horizontal">
</igc-legend>
</div>
<div class="container fill">
<igc-category-chart
name="chart"
id="chart"
chart-type="Point"
is-horizontal-zoom-enabled="false"
is-vertical-zoom-enabled="false"
y-axis-title="TWh"
y-axis-title-left-margin="10"
y-axis-title-right-margin="5"
y-axis-label-left-margin="0"
computed-plot-area-margin-mode="Series"
crosshairs-snap-to-data="true">
</igc-category-chart>
</div>
</div>
</div>
<!-- This script is needed only for parcel and it will be excluded for webpack -->
<% if (false) { %><script src="src/index.ts"></script><% } %>
</body>
</html>
html/* shared styles are loaded from: */
/* https://static.infragistics.com/xplatform/css/samples */
css
Web Components Point Chart Styling
Once the Web Components Point Chart is set up, we may want to make some further styling customizations such as change the markers and its outlines, brushes and thickness.
export class CountryRenewableElectricityItem {
public constructor(init: Partial<CountryRenewableElectricityItem>) {
Object.assign(this, init);
}
public year: string;
public europe: number;
public china: number;
public america: number;
}
export class CountryRenewableElectricity extends Array<CountryRenewableElectricityItem> {
public constructor(items: Array<CountryRenewableElectricityItem> | number = -1) {
if (Array.isArray(items)) {
super(...items);
} else {
const newItems = [
new CountryRenewableElectricityItem(
{
year: `2009`,
europe: 34,
china: 21,
america: 19
}),
new CountryRenewableElectricityItem(
{
year: `2010`,
europe: 43,
china: 26,
america: 24
}),
new CountryRenewableElectricityItem(
{
year: `2011`,
europe: 66,
china: 29,
america: 28
}),
new CountryRenewableElectricityItem(
{
year: `2012`,
europe: 69,
china: 32,
america: 26
}),
new CountryRenewableElectricityItem(
{
year: `2013`,
europe: 58,
china: 47,
america: 38
}),
new CountryRenewableElectricityItem(
{
year: `2014`,
europe: 40,
china: 46,
america: 31
}),
new CountryRenewableElectricityItem(
{
year: `2015`,
europe: 78,
china: 50,
america: 19
}),
new CountryRenewableElectricityItem(
{
year: `2016`,
europe: 13,
china: 90,
america: 52
}),
new CountryRenewableElectricityItem(
{
year: `2017`,
europe: 78,
china: 132,
america: 50
}),
new CountryRenewableElectricityItem(
{
year: `2018`,
europe: 40,
china: 134,
america: 34
}),
new CountryRenewableElectricityItem(
{
year: `2018`,
europe: 40,
china: 134,
america: 34
}),
new CountryRenewableElectricityItem(
{
year: `2019`,
europe: 80,
china: 96,
america: 38
}),
];
super(...newItems.slice(0));
}
}
}
tsimport { IgcLegendModule, IgcCategoryChartModule } from 'igniteui-webcomponents-charts';
import { IgcLegendComponent, IgcCategoryChartComponent } from 'igniteui-webcomponents-charts';
import { CountryRenewableElectricityItem, CountryRenewableElectricity } from './CountryRenewableElectricity';
import { ModuleManager } from 'igniteui-webcomponents-core';
import "./index.css";
ModuleManager.register(
IgcLegendModule,
IgcCategoryChartModule
);
export class Sample {
private legend: IgcLegendComponent
private chart: IgcCategoryChartComponent
private _bind: () => void;
constructor() {
var legend = this.legend = document.getElementById('legend') as IgcLegendComponent;
var chart = this.chart = document.getElementById('chart') as IgcCategoryChartComponent;
this._bind = () => {
chart.dataSource = this.countryRenewableElectricity;
chart.legend = this.legend;
}
this._bind();
}
private _countryRenewableElectricity: CountryRenewableElectricity = null;
public get countryRenewableElectricity(): CountryRenewableElectricity {
if (this._countryRenewableElectricity == null)
{
this._countryRenewableElectricity = new CountryRenewableElectricity();
}
return this._countryRenewableElectricity;
}
}
new Sample();
ts<!DOCTYPE html>
<html>
<head>
<title>Sample | Ignite UI | Web Components | infragistics</title>
<meta charset="UTF-8" />
<link rel="shortcut icon" href="https://static.infragistics.com/xplatform/images/browsers/wc.png" >
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Kanit&display=swap" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Titillium Web" />
<link rel="stylesheet" href="https://static.infragistics.com/xplatform/css/samples/shared.v8.css" />
<link rel="stylesheet" href="/src/index.css" type="text/css" />
</head>
<body>
<div id="root">
<div class="container sample">
<div class="legend-title">
Renewable Electricity Generated
</div>
<div class="legend">
<igc-legend
name="legend"
id="legend"
orientation="Horizontal">
</igc-legend>
</div>
<div class="container fill">
<igc-category-chart
name="chart"
id="chart"
chart-type="Point"
marker-outlines="rgba(140, 231, 217, 1) rgba(238, 88, 121, 1) rgba(115, 86, 86, 1)"
marker-brushes="white"
brushes="rgba(140, 231, 217, 1) rgba(238, 88, 121, 1) rgba(115, 86, 86, 1)"
outlines="rgba(140, 231, 217, 1) rgba(238, 88, 121, 1) rgba(115, 86, 86, 1)"
y-axis-title="TWh"
y-axis-title-left-margin="10"
y-axis-label-left-margin="0"
thickness="2"
computed-plot-area-margin-mode="Series"
is-horizontal-zoom-enabled="false"
is-vertical-zoom-enabled="false"
crosshairs-snap-to-data="true">
</igc-category-chart>
</div>
</div>
</div>
<!-- This script is needed only for parcel and it will be excluded for webpack -->
<% if (false) { %><script src="src/index.ts"></script><% } %>
</body>
</html>
html/* shared styles are loaded from: */
/* https://static.infragistics.com/xplatform/css/samples */
css
Advanced Types of Point Charts
You can create more advanced types of Web Components Point Charts using the IgcDataChartComponent
control instead of IgcCategoryChartComponent
control by following these topics:
Additional Resources
You can find more information about related chart features in these topics:
API References
The following table lists API members mentioned in the above sections: