Angular Highcharts - Configuration Syntax

In this chapter, we will showcase the configuration required to draw a chart using the Highcharts API in Angular.

Step 1 - Create Angular Application

Follow the following steps to update the Angular application we created in Angular 6 - Project Setup chapter −

Following is the content of the modified module descriptor app.module.ts.

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { HighchartsChartComponent } from 'highcharts-angular';
@NgModule({
   declarations: [
      AppComponent,
      HighchartsChartComponent    
   ],
   imports: [
      BrowserModule,
   ],
   providers: [],
   bootstrap: [AppComponent]
})
export class AppModule { }

Following is the content of the modified HTML host file app.component.html.

<highcharts-chart
   [Highcharts] = "highcharts" 
   [options] = "chartOptions" 
   style = "width: 100%; height: 400px; display: block;">
</highcharts-chart>

We'll see the updated app.component.ts in the end after understanding configurations.

Step 2 − Use Configurations

Create Highcharts and create chartOptions

highcharts = Highcharts;
   chartOptions = {   
}

Create Chart

Configure the type, title and sub-title of the chart using chartOptions.

chart: {
   type: "spline"
},

xAxis

Configure the ticker to be displayed on the X-Axis using chartOptions.

xAxis:{
   categories:["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
},

yAxis

Configure the title to be displayed on the Y-Axis using chartOptions.

yAxis: {          
   title:{
      text:"Temperature °C"
   } 
}, 

tooltip

Configure the tooltip. Put suffix to be added after value (y-axis) using chartOptions.

tooltip: {
   valueSuffix:" °C"
},

series

Configure the data to be displayed on the chart using chartOptions. Series is an array where each element of this array represents a single line on the chart.

series: [
   {
      name: 'Tokyo', 
      data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2,26.5, 23.3, 18.3, 13.9, 9.6]
   },
   {
      name: 'New York', 
      data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8,24.1, 20.1, 14.1, 8.6, 2.5]
   },
   {
      name: 'Berlin',
      data: [-0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0]
   },
   {
      name: 'London',
      data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]
   }
]

Example

Consider the following example to further understand the Configuration Syntax −

app.component.ts

import { Component } from '@angular/core';
import * as Highcharts from 'highcharts';
@Component({
   selector: 'app-root',
   templateUrl: './app.component.html',
   styleUrls: ['./app.component.css']
})
export class AppComponent {
   highcharts = Highcharts;
   chartOptions = {   
      chart: {
         type: "spline"
      },
      title: {
         text: "Monthly Average Temperature"
      },
      subtitle: {
         text: "Source: WorldClimate.com"
      },
      xAxis:{
         categories:["Jan", "Feb", "Mar", "Apr", "May", "Jun",
            "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
      },
      yAxis: {          
         title:{
            text:"Temperature °C"
         } 
      },
      tooltip: {
         valueSuffix:" °C"
      },
      series: [
         {
            name: 'Tokyo',
            data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2,26.5, 23.3, 18.3, 13.9, 9.6]
         },
         {
            name: 'New York',
            data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8,24.1, 20.1, 14.1, 8.6, 2.5]
         },
         {
            name: 'Berlin',
            data: [-0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0]
         },
         {
            name: 'London',
            data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]
         }
      ]
   };
}

Result

Verify the result.