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.

EXAMPLE

DATA

TS

HTML

CSS

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));
        }
    }
}
tsCOPY CODE

import { 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();
tsCOPY CODE

<!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>htmlCOPY CODE

/* shared styles are loaded from: */
/* https://static.infragistics.com/xplatform/css/samples */

cssCOPY CODE

Edit in: Codesandbox

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.

EXAMPLE

DATA

TS

HTML

CSS

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));
        }
    }
}
tsCOPY CODE

import { 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();
tsCOPY CODE

<!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>htmlCOPY CODE

/* shared styles are loaded from: */
/* https://static.infragistics.com/xplatform/css/samples */

cssCOPY CODE

Edit in: Codesandbox

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.

EXAMPLE

DATA

TS

HTML

CSS

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));
        }
    }
}
tsCOPY CODE

import { 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();
tsCOPY CODE

<!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>htmlCOPY CODE

/* shared styles are loaded from: */
/* https://static.infragistics.com/xplatform/css/samples */

cssCOPY CODE

Edit in: Codesandbox

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.

EXAMPLE

DATA

TS

HTML

CSS

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));
        }
    }
}
tsCOPY CODE

import { 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();
tsCOPY CODE

<!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>htmlCOPY CODE

/* shared styles are loaded from: */
/* https://static.infragistics.com/xplatform/css/samples */

cssCOPY CODE

Edit in: Codesandbox

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:

• Scatter Bubble Chart
• Scatter Marker Chart
• Scatter HD Chart
• Polar Marker Chart

Additional Resources

You can find more information about related chart features in these topics:

• Chart Performance
• Chart Markers

API References

The following table lists API members mentioned in the above sections:

• IgcCategoryChartComponent
• IgcDataChartComponent
• chartType
• markerTypes
• markerOutlines
• markerBrushes
• markerThickness