📜  Angular Highcharts-配置语法

📅  最后修改于: 2020-10-28 04:40:48             🧑  作者: Mango


在本章中,我们将展示使用Angular中的Highcharts API绘制图表所需的配置。

第1步-创建Angular应用程序

请按照以下步骤更新我们在Angular 6-Project Setup一章中创建的Angular应用程序

Step Description
1 Create a project with a name highchartsApp 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 application to verify the result of the implemented logic.

以下是修改后的模块描述符app.module.ts的内容

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 { }

以下是修改后的HTML主机文件app.component.html的内容



了解配置后,我们将最后看到更新的app.component.ts。

第2步-使用配置

创建Highcharts并创建chartOptions

highcharts = Highcharts;
   chartOptions = {   
}

创建图表

使用chartOptions配置图表的类型,标题和副标题。

chart: {
   type: "spline"
},

x轴

使用chartOptions将代码配置为显示在X轴上。

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

y轴

使用chartOptions配置要在Y轴上显示的标题。

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

工具提示

配置工具提示。使用chartOptions将后缀添加到值(y轴)之后。

tooltip: {
   valueSuffix:" °C"
},

系列

使用chartOptions配置要在图表上显示的数据。系列是一个数组,其中该数组的每个元素代表图表上的一条线。

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]
   }
]

考虑以下示例,以进一步了解配置语法-

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]
         }
      ]
   };
}

结果

验证结果。

基本折线图