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angular - ng2-charts - Angular 4 工作示例

转载 作者:行者123 更新时间:2023-12-05 08:55:45 27 4
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我正在尝试将 ng2-charts 与 Angular 4.0 一起使用,我想通过使用 chart.js 获得与这里相同的东西:

    ...
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.bundle.min.js"></script>
...

<canvas id="myChart" width="400" height="400"></canvas>
<script>
var ctx = document.getElementById("myChart").getContext('2d');
var chart = new Chart(ctx, {
// The type of chart we want to create
type: 'horizontalBar',

// The data for our dataset
data: {
labels: ["example1","example2","example3","example4","example5","example6","example7"],
datasets: [{
label: "My First dataset",
backgroundColor: 'rgb(255, 99, 132)',
borderColor: 'rgb(255, 99, 132)',
data: [0, 10, 5, 2, 20, 30, 45]
},{
label: "My second dataset",
backgroundColor: 'rgb(2, 99, 132)',
borderColor: 'rgb(255, 99, 132)',
data: [3, 10, 5, 2, 20, 30, 45]
}]
},

// Configuration options go here
options: {
scales: {
xAxes: [{
stacked: true
}],
yAxes: [{
stacked: true
}]
}
}
});
</script>

我所做的是

npm install ng2-charts --save
npm install chart.js --save

我已经添加了

<script src="node_modules/chart.js/src/chart.js"></script>

到 src/index.html

import { ChartsModule } from 'ng2-charts';

imports: [
ChartsModule
]

到 src/app/app.module.ts

你能给我一个 src/index.html、src/app/app.component.html 和 app/component.ts 的工作示例吗?因为我在示例中遇到了一些问题

GET 
http://localhost:4200/node_modules/chart.js/src/chart.js [HTTP/1.1 404 Not Found 8 ms]
ERROR Error: "undefined" is not a chart type.

即使我更改了 chart.js 位置。

src/index.html

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Chart</title>
<base href="/">

<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" type="image/x-icon" href="favicon.ico">

<script src="../node_modules/chart.js/src/chart.js"></script>

</head>

<body>
<app-root>Loading...</app-root>
</body>
</html>

src/app/app.component.html

<h1>
{{title}}
</h1>

<div style="display: block">
<canvas baseChart
[data]="chartData"
(chartHover)="chartHovered($event)"
(chartClick)="chartClicked($event)"></canvas>
</div>
<button (click)="randomize()">Update</button>

src/app/app.component.ts

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

@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent {
title = 'app works!';

public chartData: Array<any> = [
[65, 59, 80, 81, 56, 55, 40],
[28, 48, 40, 19, 86, 27, 90]
];

}

最佳答案

改变你的 chart.js到

<script src="node_modules/chart.js/dist/Chart.bundle.min.js"></script>

应用模块 ts 代码

import { ChartsModule } from 'ng2-charts/ng2-charts';

// In your App's module:
imports: [
ChartsModule
]

更新删除 index.html 中的脚本标签并添加

检查你的 angular-cli.jsonscripts 数组,然后在其中添加:

"../node_modules/chart.js/dist/Chart.bundle.min.js"

关于angular - ng2-charts - Angular 4 工作示例,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/44548462/

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