Web Components Step Chart

The Ignite UI for Web Components Step Chart belongs to a group of category charts that render as a collection of points connected by continuous vertical and horizontal lines. Values are represented on the y-axis and categories are displayed on the x-axis. Step Chart emphasizes the amount of change over a period of time or compares multiple items.

Web Components Step Area Chart

You can create Web Components Step Area Chart in the IgcCategoryChartComponent control by setting chartType property to StepArea 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));
        }
    }
}
tsコピー

import { IgcLegendModule, IgcCategoryChartModule, IgcDataChartInteractivityModule } 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,
    IgcDataChartInteractivityModule
);

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コピー

<!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="StepArea"
        title-alignment="Left"
        title-left-margin="25"
        title-top-margin="10"
        title-bottom-margin="10"
        is-category-highlighting-enabled="true"
        is-series-highlighting-enabled="true"
        is-transition-in-enabled="true"
        is-horizontal-zoom-enabled="false"
        is-vertical-zoom-enabled="false"
        y-axis-title="TWh"
        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コピー

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

cssコピー

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 Step Line Chart

The Web Components Step Line Chart is very similar to Step Area Chart, except that the area below lines are filled in.

You can create Step Line Chart in the IgcCategoryChartComponent control by binding your data and setting chartType property to StepLine value, 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));
        }
    }
}
tsコピー

import { IgcLegendModule, IgcCategoryChartModule, IgcDataChartInteractivityModule } 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,
    IgcDataChartInteractivityModule
);

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.legend = this.legend;
            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コピー

<!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="StepLine"
        included-properties="year, europe, china, america"
        is-category-highlighting-enabled="true"
        is-series-highlighting-enabled="true"
        is-horizontal-zoom-enabled="false"
        is-vertical-zoom-enabled="false"
        x-axis-interval="1"
        y-axis-title="TWh"
        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コピー

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

cssコピー

Edit in: Codesandbox

Web Components Step Chart Styling

If you need Step Charts with more features such as composite other series, you can configure the markerTypes, markerBrushes, markerOutlines, lines' brushes, and lines' outlines properties on the IgcCategoryChartComponent control as demonstrated 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));
        }
    }
}
tsコピー

import { IgcLegendModule, IgcCategoryChartModule, IgcDataChartInteractivityModule } 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,
    IgcDataChartInteractivityModule
);

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.legend = this.legend;
            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コピー

<!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="StepLine"
        included-properties="year, europe, china, america"
        is-category-highlighting-enabled="true"
        is-series-highlighting-enabled="true"
        is-horizontal-zoom-enabled="false"
        is-vertical-zoom-enabled="false"
        y-axis-title="TWh"
        marker-brushes="white"
        marker-outlines="rgba(140, 231, 217, 1) rgba(238, 88, 121, 1) rgba(115, 86, 86, 1)"
        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)"
        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コピー

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

cssコピー

Edit in: Codesandbox

Additional Resources

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

• Area Chart
• Line Chart
• Chart Markers

API References

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

• IgcCategoryChartComponent
• chartType
• StepArea
• StepLine
• brushes
• outlines
• markerBrushes
• markerOutlines
• markerTypes