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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 'ngx-echarts'; @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('category' + 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: ['bar', 'bar2'], align: 'left' }, tooltip: {}, xAxis: { data: xAxisData, silent: false, splitLine: { show: false } }, yAxis: { }, series: [{ name: 'bar', type: 'bar', data: data1, animationDelay: function (idx) { return idx * 10; } }, { name: 'bar2', type: 'bar', data: data2, animationDelay: function (idx) { return idx * 10 + 100; } }], animationEasing: 'elasticOut', 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.
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