How to use Echarts charts in Angular2.0/4.0-JS Tutorial-php.cn

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How to use Echarts charts in Angular2.0/4.0

亚连

Jun 22, 2018 pm 01:57 PM

This article mainly introduces the sample code for using Echarts in Angular2.0/4.0. The editor thinks it is quite good, so I will share it with you now and give it as a reference. Let’s follow the editor and have a look

Preface: During development, we now need to use echarts to make icons, so I searched for information on the Internet and finally found that the ngx-echarts wheel is available. Then let’s take a step.

Method: Use echarts and ngx-eachrts as two dependencies, with the help of ngx.., because echarts is written based on js and does not have ts files. So just use ngx-echarts.

Step 1: Install dependencies

npm install echarts --save
npm install ngx-echarts --save

Step 2: Introduction in Module

import { NgxEchartsModule } from &#39;ngx-echarts&#39;;
@NgModule({
 imports: [
 ...,
// 引入module
 NgxEchartsModule
 ],
})
export class AppModule { }

Step 3: Add js to angular-cli to introduce

// edit .angular-cli.json
{
 "scripts": [
 // add this: 注意，在echarts中可能没有提供echarts.min.js但是肯定有echarts.js的。对应引入即可。
 "../node_modules/echarts/dist/echarts.min.js"
// 还可以添加中英文，主题。。。。
 ],
}

Step 4: Use

<p echarts [options]="options" [loading]="isLoading" class="demo-chart"></p>

Various files

. html

<p echarts [options]="options" class="demo-chart"></p>

. ts

options: any;
 constructor() { }
 ngOnInit() {
 let xAxisData = [];
 let data1 = [];
 let data2 = [];
 for (let i = 0; i < 100; i++) {
  xAxisData.push(&#39;category&#39; + i);
  data1.push((Math.sin(i / 5) * (i / 5 - 10) + i / 6) * 5);
  data2.push((Math.cos(i / 5) * (i / 5 - 10) + i / 6) * 5);
 }
 this.options = {
  legend: {
  data: [&#39;bar&#39;, &#39;bar2&#39;],
  align: &#39;left&#39;
  },
  tooltip: {},
  xAxis: {
  data: xAxisData,
  silent: false,
  splitLine: {
   show: false
  }
  },
  yAxis: {
  },
  series: [{
  name: &#39;bar&#39;,
  type: &#39;bar&#39;,
  data: data1,
  animationDelay: function (idx) {
   return idx * 10;
  }
  }, {
  name: &#39;bar2&#39;,
  type: &#39;bar&#39;,
  data: data2,
  animationDelay: function (idx) {
   return idx * 10 + 100;
  }
  }],
  animationEasing: &#39;elasticOut&#39;,
  animationDelayUpdate: function (idx) {
  return idx * 5;
  }
 };
 }

. AppModule will not be described here

Final result:

Finally

Of course, the official website of ngx-echarts is attached, above. The examples are actually just examples from the official website.

I saw on the Internet that some people also use this component, but it is an older version, so I wrote one myself and am using it.
Of course, events are required, and others can be viewed on the official website. Because I am just using it, specific problems require specific analysis. So I won’t go into details about the rest.

Problems encountered during use?

I use the background framework of ng2-admin. In this framework, NgxEchartsModule cannot be introduced in AppModule.ts. The specific reason is unknown, but it is speculated to be caused by ng2-admin.

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

How to install nvm on Mac (detailed tutorial)

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How to implement two-way data binding in Angular

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