Angular Google Charts - Configuration Syntax

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

Step 1 - Create Angular Apppcation

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

Step	Description
1	Create a project with a name googleChartsApp as explained in the Angular 6 - Project Setup chapter.
2	Modify app.module.ts, app.component.ts and app.component.html as explained below. Keep rest of the files unchanged.
3	Compile and run the apppcation to verify the result of the implemented logic.

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 { GoogleChartsModule } from  angular-google-charts ;
@NgModule({
   declarations: [
      AppComponent   
   ],
   imports: [
      BrowserModule,GoogleChartsModule
   ],
   providers: [], bootstrap: [AppComponent]
})
export class AppModule { }

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

<google-chart #chart
   [title]="title"
   [type]="type"
   [data]="data"
   [columnNames]="columnNames"
   [options]="options"
   [width]="width"
   [height]="height">
</google-chart>

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

Step 2 - Use Configurations

Set Title

title =  Browser market shares at a specific website, 2014 ;

Set Chart Type

type= PieChart ;

data

Configure the data to be displayed on the chart.

data = [
   [ Firefox , 45.0],
   [ IE , 26.8],
   [ Chrome , 12.8],
   [ Safari , 8.5],
   [ Opera , 6.2],
   [ Others , 0.7] 
];

column names

Configure the column names to be displayed.

columnNames = [ Browser ,  Percentage ];

options

Configure the other options.

options = {
   colors: [ #e0440e ,  #e6693e ,  #ec8f6e ,  #f3b49f ,  #f6c7b6 ], is3D: true
};

Example

Consider the following example to further understand the Configuration Syntax −

app.component.ts

import { Component } from  @angular/core ;
@Component({
   selector:  app-root ,
   templateUrl:  ./app.component.html ,
   styleUrls: [ ./app.component.css ]
})
export class AppComponent {
   title =  Browser market shares at a specific website, 2014 ;
   type =  PieChart ;
   data = [
      [ Firefox , 45.0],
      [ IE , 26.8],
      [ Chrome , 12.8],
      [ Safari , 8.5],
      [ Opera , 6.2],
      [ Others , 0.7] 
   ];
   columnNames = [ Browser ,  Percentage ];
   options = {    
   };
   width = 550;
   height = 400;
}

Result

Verify the result.