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Crosshair in Angular Stock Chart component

20 Apr 2021 / 3 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.

Source
Preview
app.component.ts
app.module.ts
main.ts
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import { Component, OnInit } from '@angular/core';
import { chartData } from 'datasource.ts';

@Component({
    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
        };
    }

}
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import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
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';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule, StockChartAllModule, ChartAllModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ DateTimeService, LineSeriesService, LegendService, CrosshairService]
})
export class AppModule { }
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import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Tooltip for axis

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

Source
Preview
app.component.ts
app.module.ts
main.ts
Copied to clipboard
import { Component, OnInit } from '@angular/core';
import { chartData } from 'datasource.ts';

@Component({
    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
        };
    }

}
Copied to clipboard
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
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';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule, StockChartAllModule, ChartAllModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ DateTimeService, LineSeriesService, LegendService, CrosshairService]
})
export class AppModule { }
Copied to clipboard
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

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.

Source
Preview
app.component.ts
app.module.ts
main.ts
Copied to clipboard
import { Component, OnInit } from '@angular/core';
import { chartData } from 'datasource.ts';

@Component({
    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'}
        };
    }

}
Copied to clipboard
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
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';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, ChartModule, StockChartAllModule, ChartAllModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ DateTimeService, LineSeriesService, LegendService, CrosshairService]
})
export class AppModule { }
Copied to clipboard
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);