Highcharts curve chart with data labels

To create a curve chart with data labels in Highcharts, you can follow these steps:

  • Include the Highcharts library in your HTML file. You can either download it from the Highcharts website or include it from a CDN like this:
<script src="https://code.highcharts.com/highcharts.js"></script>
  • Create a container element for the chart in your HTML file, like this:
<div id="chart-container"></div>
  • In your JavaScript code, create a Highcharts chart object and configure it with the data and chart options. For example:
Highcharts.chart('chart-container', {
  chart: {
    type: 'spline'
  },
  title: {
    text: 'Curve Chart with Data Labels'
  },
  xAxis: {
    categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
  },
  yAxis: {
    title: {
      text: 'Temperature (��C)'
    }
  },
  series: [{
    name: 'Tokyo',
    data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6],
    marker: {
      enabled: true,
      radius: 4
    },
    dataLabels: {
      enabled: true,
      format: '{y}��C',
      style: {
        fontSize: '12px',
        color: '#000000',
        textOutline: false
      }
    }
  }]
});

In this example, we're creating a spline chart with the Highcharts chart function and passing in a set of options:

  • chart.type is set to 'spline' to create a curve chart
  • title.text is set to 'Curve Chart with Data Labels' to set the main title
  • xAxis.categories is set to an array of month names to set the x-axis labels
  • yAxis.title.text is set to 'Temperature (��C)' to set the y-axis label
  • series is set to an array with one object containing name, data, and marker and dataLabels properties to set the chart data and styling options
  • marker is set to enable data point markers with a radius of 4
  • dataLabels is set to enable data labels with a custom format and styling options, including font size, color, and text outline

Note that you can customize many other options to further customize your curve chart, such as the line color, thickness, and style, the chart background color, and the legend position and styling. You can find more details and examples in the Highcharts documentation.

  1. Customizing Data Labels in Highcharts Curve Chart:

    • Customize the appearance of data labels in the Highcharts Curve Chart.
    Highcharts.chart('container', {
        chart: {
            type: 'spline'
        },
        title: {
            text: 'Customizing Data Labels in Highcharts Curve Chart'
        },
        series: [{
            name: 'Series 1',
            data: [5, 10, 15, 20, 25],
            dataLabels: {
                enabled: true,
                color: '#333333',
                borderRadius: 5,
                backgroundColor: 'rgba(255, 255, 255, 0.7)',
                padding: 5,
                formatter: function () {
                    return this.y;
                }
            }
        }],
        // Additional configuration options...
    });
    
  2. Adding and formatting Data Labels in Highcharts Curve Chart:

    • Add and format data labels for each point in the Curve Chart.
    series: [{
        name: 'Series 1',
        data: [5, 10, 15, 20, 25],
        dataLabels: {
            enabled: true,
            formatter: function () {
                return '<b>' + this.y + '</b>';
            },
            style: {
                color: '#ffffff',
                textOutline: '1px contrast'
            }
        }
    }],
    
  3. Highcharts Curve Chart with dynamic Data Labels:

    • Dynamically update data labels based on conditions or external factors.
    series: [{
        name: 'Series 1',
        data: [5, 10, 15, 20, 25],
        dataLabels: {
            enabled: true,
            formatter: function () {
                if (this.y > 15) {
                    return 'High';
                } else {
                    return 'Low';
                }
            },
            style: {
                color: '#333333'
            }
        }
    }],
    
  4. Interactive features in Highcharts Curve Chart with Data Labels:

    • Implement interactive features with data labels.
    series: [{
        name: 'Series 1',
        data: [5, 10, 15, 20, 25],
        dataLabels: {
            enabled: true,
            formatter: function () {
                return this.y;
            },
            style: {
                color: '#333333'
            },
            events: {
                click: function () {
                    alert('Data label clicked: ' + this.y);
                }
            }
        }
    }],
    
  5. Configuring position and style of Data Labels in Highcharts:

    • Adjust the position and style of data labels for better readability.
    series: [{
        name: 'Series 1',
        data: [5, 10, 15, 20, 25],
        dataLabels: {
            enabled: true,
            formatter: function () {
                return this.y;
            },
            style: {
                color: '#ffffff',
                textOutline: '1px contrast'
            },
            y: -10 // Adjust the vertical position
        }
    }],
    
  6. Handling overlapping Data Labels in Highcharts Curve Chart:

    • Prevent overlapping of data labels using the crop and overflow options.
    series: [{
        name: 'Series 1',
        data: [5, 10, 15, 20, 25],
        dataLabels: {
            enabled: true,
            formatter: function () {
                return this.y;
            },
            crop: false,
            overflow: 'none'
        }
    }],
    
  7. Highcharts Curve Chart with conditional Data Labels display:

    • Conditionally display or hide data labels based on certain criteria.
    series: [{
        name: 'Series 1',
        data: [5, 10, 15, 20, 25],
        dataLabels: {
            enabled: function () {
                return this.y > 15; // Display labels for values greater than 15
            },
            formatter: function () {
                return this.y;
            },
            style: {
                color: '#333333'
            }
        }
    }],