Adjust the dimensions of the ng2-charts to fit your needs

Is there a way to specify the width and height of a chart using ng2-charts? Specifically, I am working on a Bar chart similar to the one shown in the ng2-charts demo.

public doughnutChartLabels:string[] = ['EMI', 'Car', 'Food', 'Fuel'];
data:number[] = [3350, 5450, 4100, 1000];
public doughnutChartType:string = 'doughnut';
options: { responsive: true, }
colorsEmptyObject: Array<Color> = [{}];
public datasets: any[] = [
{
data: this.data,
backgroundColor: [
"#FF6384",
"#36A2EB",
"#FFCE56"
],
hoverBackgroundColor: [
"#FF6384",
"#36A2EB",
"#FFCE56"
]
}];
// events
public chartClicked(e:any):void {
console.log(e);
}

public chartHovered(e:any):void {
console.log(e);
}

Answer №1

When dealing with rectangular graphs like lines or bars, you have the option to specify the width and height in the HTML:

<canvas baseChart width="2" height="1"
        [datasets]="chartData"
        [labels]="chartLabels"
        [options]="chartOptions"
        [colors]="chartColors"
        [legend]=true
        chartType=line></canvas>

It's important to note that the width and height determine the aspect ratio, not the actual size.

For square graphs such as donuts, radar, pies, and polar charts, setting the width and height may not be as practical. While it will maintain a square shape, it may result in larger padding on the sides or top and bottom.

Alternatively, you can specify the exact size of the chart within a div:

<div style="display: block; width: 200px; height: 200px;">
    <canvas baseChart
            [data]="doughnutChartData"
            [labels]="doughnutChartLabels"
            [chartType]="doughnutChartType"
            (chartHover)="chartHovered($event)"
            (chartClick)="chartClicked($event)"></canvas>
</div>

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