我有一个基于接收到的数据的动态图表生成组件。我在组件内创建一个图表实例并填写属性。我将 chartjs-annotate-plugin 导入为
import * as annotation from 'chartjs-plugin-annotation';
并像这样注册图表插件:
constructor() {
Chart.pluginService.register(annotation);
}
我试图在图表实例化之前移动它,但有趣的是,虽然我确实看到了注释,但它也会导致控制台错误,指出注释不是 ChartOptions 上的属性:
ERROR in src/app/shared/charts/chart/chart.component.ts(143,11): error
TS2345: Argument of type '{ plugins: any[]; type: string; data: { labels:
any[]; datasets: any[]; }; options: { scales: { y...' is not assignable to
parameter of type 'ChartConfiguration'.
Types of property 'options' are incompatible.
Type '{ scales: { yAxes: { stacked: boolean; ticks: { beginAtZero: true;
callback: (value: any, index: ...' is not assignable to type
'ChartOptions'.
Object literal may only specify known properties, and 'annotation' does
not exist in type 'ChartOptions'.
有任何想法吗?
从赏金编辑:这不是OP 的代码,但这里有一些代码可以重现 Angular 8 和 ChartJS Annotation 插件 0.5.7 中的问题:
let annotation = [];
annotation.push({
drawTime: 'beforeDatasetsDraw',
type: 'box',
xMin: i - 1, //index + 1,
xMax: i + 1, //index + 5,
yMin: this.yValues.reduce((a, b) => Math.min(a, b)).toString(),
yMax: this.yValues.reduce((a, b) => Math.max(a, b)).toString(),
// ID of the X scale to bind onto
xScaleID: 'x-axis-0',
// ID of the Y scale to bind onto
yScaleID: 'y-axis-0',
backgroundColor: 'rgba(101, 33, 171, 0.15)',
borderColor: 'rgba(101, 33, 171, 0.5)',
borderWidth: 2,
});
let namedChartAnnotation = ChartAnnotation;
Chart.pluginService.register(namedChartAnnotation);
return new Chart('histogram' + number, {
type: 'bar',
data: {
labels: this.xValues,
datasets: [
{
label: 'Number of alerts',
data: this.yValues,
},
],
},
options: {
annotation: {
annotations: annotation,
}
}
});
使用此代码,我在控制台中得到了上面指定的错误,但它按预期工作。如果我将annotation:
部分移动到plugins:
,错误消失,但注释不再显示:
....
options: {
plugins: {
annotation: {
annotations: annotation,
},
}
}