ngx-charts is a declarative charting framework for Angular applications. It provides a wide range of customizable chart types and is built on top of D3.js, offering a powerful and flexible solution for data visualization in Angular projects.

Pros

• Seamless integration with Angular applications
• Wide variety of chart types and customization options
• Built on D3.js, providing powerful data manipulation capabilities
• Responsive design and animations out of the box

Cons

• Learning curve for developers new to D3.js concepts
• Limited documentation for advanced customizations
• Performance may degrade with large datasets
• Some chart types may require additional configuration for optimal display

Code Examples

1. Basic Bar Chart

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

@Component({
  selector: 'app-bar-chart',
  template: `
    <ngx-charts-bar-vertical
      [view]="[700, 400]"
      [results]="data"
      [xAxis]="true"
      [yAxis]="true"
      [legend]="true"
      [showXAxisLabel]="true"
      [showYAxisLabel]="true"
      xAxisLabel="Country"
      yAxisLabel="Population">
    </ngx-charts-bar-vertical>
  `
})
export class BarChartComponent {
  data = [
    { name: 'Germany', value: 8940000 },
    { name: 'USA', value: 5000000 },
    { name: 'France', value: 7200000 }
  ];
}

2. Pie Chart with Custom Colors

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

@Component({
  selector: 'app-pie-chart',
  template: `
    <ngx-charts-pie-chart
      [view]="[700, 400]"
      [results]="data"
      [legend]="true"
      [labels]="true"
      [doughnut]="false"
      [scheme]="colorScheme">
    </ngx-charts-pie-chart>
  `
})
export class PieChartComponent {
  data = [
    { name: 'Germany', value: 8940000 },
    { name: 'USA', value: 5000000 },
    { name: 'France', value: 7200000 }
  ];
  colorScheme = {
    domain: ['#5AA454', '#A10A28', '#C7B42C']
  };
}

3. Line Chart with Multiple Series

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

@Component({
  selector: 'app-line-chart',
  template: `
    <ngx-charts-line-chart
      [view]="[700, 400]"
      [results]="multi"
      [xAxis]="true"
      [yAxis]="true"
      [legend]="true"
      [showXAxisLabel]="true"
      [showYAxisLabel]="true"
      xAxisLabel="Year"
      yAxisLabel="Population">
    </ngx-charts-line-chart>
  `
})
export class LineChartComponent {
  multi = [
    {
      name: 'Germany',
      series: [
        { name: '2010', value: 7300000 },
        { name: '2011', value: 8940000 }
      ]
    },
    {
      name: 'USA',
      series: [
        { name: '2010', value: 7870000 },
        { name: '2011', value: 8270000 }
      ]
    }
  ];
}

Getting Started

1. Install ngx-charts:

   npm install @swimlane/ngx-charts
   

2. Import NgxChartsModule in your app.module.ts:

   import { NgxChartsModule } from '@swimlane/ngx-charts';
   
   @NgModule({
     imports: [
       NgxChartsModule
     ]
   })