Topic: this.chart.getPointDataAtEvent is not a function
kevin.tahon pro asked 4 years ago
Expected behavior When I mouseover a point on my graph, I wanna see the point. Looking at the documentation I need to use the getPointDataEvent, but it's not working.
Actual behavior I wanna see the point data I clicked.
Resources (screenshots, code snippets etc.)
Code in my html
<mdb-card>
<mdb-card-body>
<h5 class="card-title">Data</h5>
<div>
<canvas mdbChart #chart
[chartType]="chartType"
[datasets]="chartDatasetsCPU"
[labels]="chartLabels"
[colors]="chartColors"
[options]="chartOptions"
[legend]="true"
(chartHover)="chartHovered($event)"
(chartClick)="chartClicked($event)"
>
</canvas>
</div>
</mdb-card-body>
</mdb-card>
Code in my ts file:
@ViewChild('chart', {static: false}) chart: BaseChartDirective;
public chartType: string = 'line';
public chartDatasetsCPU: Array<any> = [
{ data: [55, 49, 30, 21, 36, 65, 60], label: '' },
{ data: [100, 100, 100, 100, 100, 100, 100], label: '' },
{ data: [60, 60, 60, 60, 60, 60, 60], label: '' },];
public chartLabels: Array<any> = ['10/11', '', '12/11', '', '14/11', '', '16/11'];
public chartColors: Array<any> = [
{
borderColor: 'rgba(163,216,231,1)',
borderWidth: 2,
},
{
borderColor: 'rgba(246, 201, 0, 1)',
borderWidth: 2,
pointStyle:'line',
pointBorderWidth:1,
lineCap: 'square'
},
{
borderColor: 'rgba(207,0,15,1)',
borderWidth: 2,
pointStyle:'line',
pointBorderWidth:1
} ];
public chartOptions: any = {
responsive: true,
hover: {
mode: 'nearest',
intersec: true,
}};
public chartClicked(e: any): void {
console.log(this.chart.getPointDataAtEvent(e));}
public chartHovered(e: any): void {
console.log(this.chart.getPointDataAtEvent(e));}
Any idea how I can get this working?
Kind regards,
Kevin Tahon
Arkadiusz Idzikowski staff answered 4 years ago
Please update the #chart
template reference variable to #chart="mdb-base-chart"
. We will fix that in the documentation.
kevin.tahon pro commented 4 years ago
Hello, Just tested it and it's working. Thx for the response.
Kind regards,
Kevin Tahon
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Resolved
- ForumUser: Pro
- Premium support: No
- Technology: MDB Angular
- MDB Version: 9.3.1
- Device: Laptop
- Browser: Chrome
- OS: Windows 10
- Provided sample code: No
- Provided link: No