Line Configuration

Line elements represent the lines connecting data points in a line chart. we can customize lines in our charts using the options provided below.

These are the following options available to customize lines:

• tension: This parameter controls the “curviness” of a line in a line chart.
• backgroundColor: This option sets the background color of the chart element.
• borderWidth: It defines the width of the border around the chart element.
• borderColor: This property sets the color of the border around the chart element.
• borderCapStyle: Specifies the style for the ends of the lines in the chart element.
• borderDash: An array of values that specify the pattern of dashes and gaps used in the border.
• borderDashOffset: This property sets the phase offset (in pixels) for the dash pattern specified by the borderDash property.
• borderJoinStyle: Defines the style for the joins between line segments in the chart element.
• capBezierPoints: If set to true, it ensures that the control points for the Bezier curve at the end of the line chart are positioned on the line.
• cubicInterpolationMode: Specifies the algorithm used to interpolate values for data points in a line chart.
• fill: Determines whether the area under the line chart should be filled with color.
• stepped: If set to true, the line chart uses a stepped interpolation between points.

Chart.js Elements Configuration provides us with the option to configure four types of elements: arcs, lines, points, and bars. Developers can use the options provided by Elements Configuration to customize these elements to change the appearance and behavior of the charts that meet their requirements.

Syntax:

let ctx = document.getElementById('myChart').getContext('2d');
let myChart = new Chart(ctx, {
    type: 'chartType',
    data: {
        // chart data here
    },
   options: {
    elements: {
       { /* element to configure */ }: {
           // configuration options here
        }
    }
}
});