Javascript 更改数据集时不显示Chartjs自定义颜色
我试图创建两个不同的折线图,显示两个不同的数据集。这样,我想为每个图表显示2种不同的颜色Javascript 更改数据集时不显示Chartjs自定义颜色,javascript,angular,typescript,chart.js,signalr,Javascript,Angular,Typescript,Chart.js,Signalr,我试图创建两个不同的折线图,显示两个不同的数据集。这样,我想为每个图表显示2种不同的颜色 <div style="display: block" *ngIf='signalRService.data'> <canvas baseChart id="data1" [datasets]="signalRService.data1" [labels]="cha
<div style="display: block" *ngIf='signalRService.data'>
<canvas baseChart id="data1"
[datasets]="signalRService.data1"
[labels]="chartLabels"
[options]="chartOptions"
[legend]="chartLegend"
[chartType]="chartType"
[colors]="colors"
(chartClick)="chartClicked($event)"></canvas>
</div>
<div style="display: block" *ngIf='signalRService.data'>
<canvas baseChart id="data2"
[datasets]="signalRService.data2"
[labels]="chartLabels"
[options]="chartOptions"
[legend]="chartLegend"
[chartType]="chartType"
[colors]="colors"
(chartClick)="chartClicked($event)"></canvas>
</div>
我真的弄明白了。如果我将html中对颜色数组的引用替换为信息本身,如下所示
[colors]="
[{
backgroundColor: 'rgba(0,100,0,0.2)',
borderColor: 'rgba(0,0,100,1)',
pointBackgroundColor: 'rgba(148,159,177,1)',
pointBorderColor: '#fff',
pointHoverBackgroundColor: '#fff',
pointHoverBorderColor: 'rgba(148,159,177,0.8)',
fill: false
}]"
我还将data1和data2变量更改为原始超级数据集的切片(使用Arrays.slice),它可以工作
[colors]="
[{
backgroundColor: 'rgba(0,100,0,0.2)',
borderColor: 'rgba(0,0,100,1)',
pointBackgroundColor: 'rgba(148,159,177,1)',
pointBorderColor: '#fff',
pointHoverBackgroundColor: '#fff',
pointHoverBorderColor: 'rgba(148,159,177,0.8)',
fill: false
}]"