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Strip Line in Angular Chart Component

3 Feb 202624 minutes to read

The Angular Chart component supports horizontal and vertical strip lines, providing visual guides to highlight specific ranges in the chart area. Strip lines can be added to both axes and fully customized based on visual and functional requirements. To use strip line features, inject StriplineService into the @NgModule.providers

Horizontal Strip lines

Horizontal strip lines are created by adding the stripline configuration to the vertical axis and setting the visible property to true. They highlight horizontal ranges in the chart, and multiple strip lines can be added to the same axis.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { stripData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Internet'></e-series>>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public primaryYAxis?: Object;
    ngOnInit(): void {
        this.chartData =  [{x: 1, y: 20},{x: 2, y: 22},{x: 3, y: 0},{x: 4, y: 12},{x: 5, y: 5},
                 {x: 6, y: 15},{x: 7, y: 6},{x: 8, y: 12},{x: 9, y: 20},{x: 10, y: 7}];
        this.primaryYAxis = {
           title: 'Runs',
            stripLines:[
            { start: 15, end: 22, text: 'Good', color: '#ff512f', visible: true, zIndex: 'Behind', opacity: 0.5 },
            { start: 8, end: 15, text: 'Medium', color: 'pink', opacity: 0.5, visible: true, zIndex: 'Behind' },
            { start: 0, end: 8, text:'Not enough', color: 'skyblue', opacity: 0.5, visible: true, zIndex: 'Behind' }]
        };
        this.primaryXAxis = {
            title: 'Overs'
        };
        this.title = 'India Vs Australia 1st match';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Vertical striplines

Striplines are rendered in the specified start to end range and you can add more than one stripline for an axis.
Vertical strip lines are created by adding the stripline configuration to the horizontal axis and enabling the visible property. They highlight vertical regions in the chart and support multiple entries for an axis.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { stripData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Internet'></e-series>>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public primaryYAxis?: Object;
    ngOnInit(): void {
        this.chartData =  [{x: 1, y: 20},{x: 2, y: 22},{x: 3, y: 0},{x: 4, y: 12},{x: 5, y: 5},
                 {x: 6, y: 15},{x: 7, y: 6},{x: 8, y: 12},{x: 9, y: 20},{x: 10, y: 7}];
        this.primaryYAxis = {
           title: 'Runs',

        };
        this.primaryXAxis = {
           title: 'Overs',
            stripLines:[
            {start: 0, end: 5, text: 'powerplay 1', color: 'red', visible: true, opacity: 0.5, rotation: 45, textStyle: { size: 20, color: 'black'}},
            {start: 5, end: 10, text: 'powerplay 2', color: 'blue', visible: true, opacity: 0.5, rotation: 45, textStyle: { size: 20, color: 'black'}},
        ]
        };
        this.title = 'India Vs Australia 1st match';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Customize the strip line

Strip lines can be customized to highlight specific regions more effectively:

  • Use start to set the beginning value of the strip line.
  • Use end to define the ending value.
  • Use startFromOrigin to begin the strip line from the axis origin.
  • Use size to specify the strip line height or width (based on orientation).
  • Use border to customize border appearance.
  • Use zIndex to control whether the strip line appears behind or above chart series.
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { stripData } from './datasource';

@Component({
imports: [
         ChartModule
    ],

providers: [ StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Internet'></e-series>>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public primaryYAxis?: Object;
    ngOnInit(): void {
        this.chartData = [
                 {x: 1, y: 20},{x: 2, y: 22},{x: 3, y: 0},{x: 4, y: 12},{x: 5, y: 5},
                 {x: 6, y: 15},{x: 7, y: 6},{x: 8, y: 12},{x: 9, y: 20},{x: 10, y: 7}
        ];
        this.primaryYAxis = {
           title: 'Runs',
        };
        this.primaryXAxis = {
            stripLines:[
            { startFromOrigin: true, size: 4, zIndex: 'Behind', opacity: 0.5, border: { width: 2, color:'red'}}
        ],
            title: 'Overs'
        };
        this.title = 'India Vs Australia 1st match';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Customize the stripline text

Strip line text labels can be customized for readability and visual presentation:

  • Use textStyle to set text appearance.
  • Use rotation to rotate the strip line text.
  • Use horizontalAlignment and verticalAlignment to adjust label placement.
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService } from '@syncfusion/ej2-angular-charts'




import { Component, OnInit } from '@angular/core';
import { stripData } from './datasource';
@Component({
imports: [
         ChartModule
    ],

providers: [ StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Internet'></e-series>>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public primaryYAxis?: Object;
    ngOnInit(): void {
        this.chartData = [
                 {x: 1, y: 20},{x: 2, y: 22},{x: 3, y: 0},{x: 4, y: 12},{x: 5, y: 5},
                 {x: 6, y: 15},{x: 7, y: 6},{x: 8, y: 12},{x: 9, y: 20},{x: 10, y: 7}
        ];
        this.primaryYAxis = {
           title: 'Runs',
        };
        this.primaryXAxis = {
            stripLines:[
            { startFromOrigin: true, size: 4, zIndex: 'Behind', opacity: 0.5,  text: 'Good', verticalAlignment: 'Middle', horizontalAlignment: 'Middle', rotation: 90, textStyle: { size: 15}},
            { start: 5, end: 8, verticalAlignment: 'Start', horizontalAlignment: 'End', rotation: 45, text: 'Poor'}
        ],
            title: 'Overs'
        };
        this.title = 'India Vs Australia 1st match';
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Dash Array

Dashed strip lines can be rendered using the dashArray property. The dash pattern is defined using a series of numbers representing dash and gap lengths.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { stripData } from './datasource';

@Component({
imports: [
         ChartModule
    ],

providers: [ StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryYAxis]='primaryYAxis'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Line' xName='x' yName='y' [marker]='marker'></e-series>>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = [
            {x: 1, y: 5},{x: 2, y: 39},{x: 3, y: 21},{x: 4, y: 51},{x: 5, y: 30},
            {x: 6, y: 25},{x: 7, y: 10},{x: 8, y: 40},{x: 9, y: 50},{x: 10, y: 20}
            ];
        this.primaryYAxis = {
           minimum: 0, maximum: 60, interval: 10,
        stripLines:[
            { start: 30, size: 2, sizeType: 'Pixel', dashArray:"10,5", color: "red"}
        ]
        };
        this.marker = { visible: true }
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Recurrence stripline

Recurring strip lines help mark repeating events across the chart axis. The following properties configure recurrence:

  • isRepeat – Enables or disables repeating strip lines.
  • repeatEvery – Specifies the interval at which the strip line repeats.
  • repeatUntil – Defines the end value up to which strip lines should repeat.
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { stripData } from './datasource';

@Component({
imports: [
         ChartModule
    ],

providers: [ StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Line' xName='x' yName='y' [marker]='marker'></e-series>>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = [
            {x: 1, y: 5},{x: 2, y: 39},{x: 3, y: 21},{x: 4, y: 51},{x: 5, y: 30},
            {x: 6, y: 25},{x: 7, y: 10},{x: 8, y: 40},{x: 9, y: 50},{x: 10, y: 20}
            ];
        this.primaryXAxis = {
            stripLines:[
            {start: 1, size: 1, isRepeat: true, repeatEvery: 2, color: 'rgba(167,169,171, 0.3)'}
        ]
        };
        this.marker = { visible: true }
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Size type

The sizeType property determines how strip line size is interpreted. Supported units include:

  • Auto
  • Pixel
  • Years
  • Months
  • Days
  • Hours
  • Minutes
  • Seconds
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, LineSeriesService, DateTimeCategoryService, StripLineService} from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';

@Component({
imports: [
         ChartModule
    ],

providers: [ DateTimeService, LineSeriesService, DateTimeCategoryService, StripLineService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis' [primaryYAxis]='primaryYAxis'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Line' xName='x' yName='y' [marker]='marker'></e-series>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData =  [{ x: new Date(2000, 0, 1), y: 10 }, { x: new Date(2002, 0, 1), y: 40 },
    { x: new Date(2004, 0, 1), y: 20 }, { x: new Date(2006, 0, 1), y: 50 },
    { x: new Date(2008, 0, 1), y: 15 }, { x: new Date(2010, 0, 1), y: 30 }];
        this.primaryXAxis = {
            valueType: 'DateTime', intervalType: 'Years',
       stripLines:[
            {start:new Date(2002, 0, 1) , size: 2, sizeType: 'Years', color: 'rgba(167,169,171, 0.3)'}
            ]
        };
        this.primaryYAxis = {
           minimum: 0, maximum: 60, interval: 10
        };
       this.marker = { visible: true }
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Segment stripline

Segment strip lines highlight a specific region corresponding to another axis. This is useful for marking regions that depend on values across two dimensions.

Key properties:

  • isSegmented – Enables segmented strip lines.
  • segmentStart – Defines the starting point of the segment line.
  • segmentEnd – Defines the ending point of the segment line.
  • segmentAxisName – Specifies the associated axis for segmentation.
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule } from '@syncfusion/ej2-angular-charts'
import { StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService } from '@syncfusion/ej2-angular-charts'



import { Component, OnInit } from '@angular/core';
import { stripData } from './datasource';

@Component({
imports: [
         ChartModule
    ],

providers: [ StripLineService, ColumnSeriesService, DataLabelService, LineSeriesService ],
standalone: true,
    selector: 'app-container',
    template: `<ejs-chart id="chart-container" [primaryYAxis]='primaryYAxis'>
        <e-series-collection>
            <e-series [dataSource]='chartData' type='Line' xName='x' yName='y' [marker]='marker'></e-series>>
        </e-series-collection>
    </ejs-chart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public primaryYAxis?: Object;
    public marker?: Object;
    ngOnInit(): void {
        this.chartData = [
            {x: 1, y: 5},{x: 2, y: 39},{x: 3, y: 21},{x: 4, y: 51},{x: 5, y: 30},
            {x: 6, y: 25},{x: 7, y: 10},{x: 8, y: 40},{x: 9, y: 50},{x: 10, y: 20}
            ];
        this.primaryYAxis = {
        stripLines:[
            {start: 20, end: 40, isSegmented: true, segmentStart: 2, segmentEnd: 4,
            color: 'rgba(167,169,171, 0.3)'}
        ]

        };
        this.marker = { visible: true }
    }

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

See also