使用chart.js和Angular显示图表时出现问题
我想在angular中使用chart.js显示图表。我第一次尝试在网上实现一个示例,在编译过程中没有问题。这是my.ts中的代码:使用chart.js和Angular显示图表时出现问题,angular,chart.js,Angular,Chart.js,我想在angular中使用chart.js显示图表。我第一次尝试在网上实现一个示例,在编译过程中没有问题。这是my.ts中的代码: import { Component, OnInit } from '@angular/core'; import { Chart } from "chart.js"; @Component({ ... }) export class MyChartComponent implements OnInit { construct
import { Component, OnInit } from '@angular/core';
import { Chart } from "chart.js";
@Component({
...
})
export class MyChartComponent implements OnInit {
constructor(){
}
ngOnInit(): void {
new Chart("myChart", {
type: 'bar',
data: {
labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255, 99, 132, 1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1
}]
},
options: {
scales: {
y: {
beginAtZero: true
}
}
}
});
}
}
在my.html中,我有:
<div id="divChart">
<canvas id="myChart"></canvas>
</div>
还有许多其他错误。
你能帮我一下吗?Chart.js 3是,所以有必要导入并注册你要使用的控制器、元件、秤和插件
请查看Chart.js文档中的内容
在您的情况下,可以按如下方式()完成:
从'Chart.js'导入{Chart,registerables};
图.登记册(…登记册)
您可以尝试在ngAfterViewInit
生命周期内创建图表吗?
ERROR Error: "linear" is not a registered scale.
_get chart.esm.js:4622
getScale chart.esm.js:4576
buildOrUpdateScales chart.esm.js:5224
each helpers.segment.js:102
buildOrUpdateScales chart.esm.js:5211
update chart.esm.js:5336
Chart chart.esm.js:5096
ngOnInit my-chart.component.ts:32
Angular 37
zUnb main.ts:11
Webpack 6
ERROR TypeError: area is undefined
_isPointInArea helpers.segment.js:1266
getNearestItems chart.esm.js:2465
nearest chart.esm.js:2548
getElementsAtEventForMode chart.esm.js:5503
_handleEvent chart.esm.js:5737
_eventHandler chart.esm.js:5720
listener chart.esm.js:5617
proxy chart.esm.js:3022
throttled helpers.segment.js:28
Angular 17
throttled helpers.segment.js:26
Angular 14
addListener chart.esm.js:2905
createProxyAndListen chart.esm.js:3028
addEventListener chart.esm.js:3071
_add chart.esm.js:5605
bindEvents chart.esm.js:5619
each helpers.segment.js:102
bindEvents chart.esm.js:5619
_initialize chart.esm.js:5129
Chart chart.esm.js:5094
ngOnInit my-chart.component.ts:32
Angular 13
import { Chart, BarElement, BarController, CategoryScale, Decimation, Filler, Legend, Title, Tooltip} from 'chart.js';
export class MyChartComponent implements OnInit {
constructor() {
Chart.register(BarElement, BarController, CategoryScale, Decimation, Filler, Legend, Title, Tooltip);
}
...
}