Cross hair in Angular Stock chart component

24 Dec 202412 minutes to read

Crosshair has a vertical and horizontal line to view the value of the axis at mouse or touch position.

Crosshair lines can be enabled by using enable property in the crosshair. Likewise tooltip label for an axis can be enabled by using enable property of crosshairTooltip in the corresponding axis.

app.component.ts

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule, StockChartAllModule, ChartAllModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, LineSeriesService} from '@syncfusion/ej2-angular-charts'
import { LegendService, CrosshairService } from '@syncfusion/ej2-angular-charts'



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

@Component({
imports: [
         ChartModule, StockChartAllModule, ChartAllModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, CrosshairService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-stockchart id="chart-container" [primaryXAxis]='primaryXAxis' [title]='title' [crosshair]='crosshair'>
        <e-stockchart-series-collection>
            <e-stockchart-series [dataSource]='chartData' type='Candle' xName='date' yName='open' name='India' width=2 ></e-stockchart-series>
        </e-stockchart-series-collection>
    </ejs-stockchart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public crosshair?: Object;
    ngOnInit(): void {
        this.chartData = chartData;
        this.title = 'Efficiency of oil-fired power production';
        this.primaryXAxis = {
           valueType: 'DateTime'
        };
        this.crosshair= {
            enable: true
        };
    }

}

main.ts

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

Tooltip for axis

Tooltip label for an axis can be enabled by using enable property of crosshairTooltip in the corresponding axis.

app.component.ts

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule, StockChartAllModule, ChartAllModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, LineSeriesService} from '@syncfusion/ej2-angular-charts'
import { LegendService, CrosshairService } from '@syncfusion/ej2-angular-charts'



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

@Component({
imports: [
         ChartModule, StockChartAllModule, ChartAllModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, CrosshairService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-stockchart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title' [crosshair]='crosshair'>
        <e-stockchart-series-collection>
            <e-stockchart-series [dataSource]='chartData' type='Candle' xName='date' yName='open' name='India' width=2 ></e-stockchart-series>
        </e-stockchart-series-collection>
    </ejs-stockchart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public primaryYAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public crosshair?: Object;
    ngOnInit(): void {
        this.chartData = chartData;
        this.title = 'Efficiency of oil-fired power production';
        this.primaryXAxis = {
           valueType: 'DateTime',
           crosshairTooltip: {enable:true}
        };
        this.primaryYAxis = {
           majorTickLines: { color: 'transparent', width: 0 },
           crosshairTooltip: {enable:true}
        };
        this.crosshair= {
            enable: true
        };
    }

}

main.ts

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

Customization

The fill and textStyle property of the crosshairTooltip is used to customize the background color and font style of the crosshair label respectively.
Color and width of the crosshair line can be customized by using the line property in the crosshair.

app.component.ts

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { ChartModule, StockChartAllModule, ChartAllModule } from '@syncfusion/ej2-angular-charts'
import { DateTimeService, LineSeriesService} from '@syncfusion/ej2-angular-charts'
import { LegendService, CrosshairService } from '@syncfusion/ej2-angular-charts'



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

@Component({
imports: [
         ChartModule, StockChartAllModule, ChartAllModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, CrosshairService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-stockchart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title' [crosshair]='crosshair'>
        <e-stockchart-series-collection>
            <e-stockchart-series [dataSource]='chartData' type='Candle' xName='date' yName='open' name='India' width=2 ></e-stockchart-series>
        </e-stockchart-series-collection>
    </ejs-stockchart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public primaryYAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public crosshair?: Object;
    ngOnInit(): void {
        this.chartData = chartData;
        this.title = 'Efficiency of oil-fired power production';
        this.primaryXAxis = {
           valueType: 'DateTime',
           crosshairTooltip: {enable:true}
        };
        this.primaryYAxis = {
           majorTickLines: { color: 'transparent', width: 0 },
           crosshairTooltip: {enable:true}
        };
        this.crosshair= {
            enable: true,
            line: {width: 2, color: 'green'}
        };
    }

}

main.ts

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

Snap to data

Enabling the snapToData property in the crosshair aligns it with the nearest data point instead of following the exact mouse position.

app.component.ts

import { ChartModule, StockChartAllModule, ChartAllModule } from '@syncfusion/ej2-angular-charts';
import { DateTimeService, LineSeriesService} from '@syncfusion/ej2-angular-charts';
import { LegendService, CrosshairService } from '@syncfusion/ej2-angular-charts';
import { Component, OnInit } from '@angular/core';
import { chartData } from './datasource';

@Component({
imports: [
         ChartModule, StockChartAllModule, ChartAllModule
    ],

providers: [ DateTimeService, LineSeriesService, LegendService, CrosshairService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-stockchart id="chart-container" [primaryXAxis]='primaryXAxis' [primaryYAxis]='primaryYAxis' [title]='title' [crosshair]='crosshair'>
        <e-stockchart-series-collection>
            <e-stockchart-series [dataSource]='chartData' type='Candle'></e-stockchart-series>
        </e-stockchart-series-collection>
    </ejs-stockchart>`
})
export class AppComponent implements OnInit {
    public primaryXAxis?: Object;
    public primaryYAxis?: Object;
    public chartData?: Object[];
    public title?: string;
    public crosshair?: Object;
    ngOnInit(): void {
        this.chartData = chartData;
        this.title = 'AAPL Stock Price';
        this.primaryXAxis = {
            majorGridLines: { color: 'transparent' },
            crosshairTooltip: { enable: true, fill: 'green' }
        };
        this.primaryYAxis = {
            lineStyle: { color: 'transparent' },
            majorTickLines: { color: 'transparent', width: 0 },
            crosshairTooltip: { enable: true, fill: 'green' }
        };
        this.crosshair= {
            enable: true,
            line: { width: 2, color: 'green' },
            snapToData: true
        };
    }

}

main.ts

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