Bar Chart

API information regarding each chart is not addressed in this document. Refer to the API Guide.

Creating the Chart

There are two different ways to create the Bar chart. The Bar chart can be created through the constructor function or the static function. The two methods both result in returning an instance of the chart. The HTML element in which the chart is drawn el, data data, and the options object options are taken as parameters. If the element in which the chart is drawn contains elements other than the chart itself, it may unintentionally affect the chart. Therefore, it is recommended that you use an empty HTML element.

import { BarChart } from '@toast-ui/chart';

const chart = new BarChart({el, data, options});

// or

import Chart from '@toast-ui/chart';

const chart = Chart.barChart({el, data, options});

Basic Chart

Data Type

categories values are shown on the y-axis, and the series value must be completed with the name and the data. The name is used to identify each series and its id must be unique.

const data = {
  categories: ['Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
  series: [
    {
      name: 'Budget',
      data: [5000, 3000, 5000, 7000, 6000, 4000, 1000]
    },
    {
      name: 'Income',
      data: [8000, 4000, 7000, 2000, 6000, 3000, 5000]
    },
    {
      name: 'Expenses',
      data: [4000, 4000, 6000, 3000, 4000, 5000, 7000]
    },
    {
      name: 'Debt',
      data: [3000, 4000, 3000, 1000, 2000, 4000, 3000]
    }
  ]
}

range Chart

Data Type

The difference between the basic chart and the range chart lies in the type of the series data. The data is entered as an array, and the numerical values for the start and the end of the range should be entered in order.

const data = {
  categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
  series: [
    {
      name: 'Seoul',
      data: [
        [-8.3, 0.3],
        [-5.8, 3.1],
        [-0.6, 9.1],
        [5.8, 16.9],
        [11.5, 22.6],
        [16.6, 26.6],
        [21.2, 28.8],
        [21.8, 30.0],
        [15.8, 25.6],
        [8.3, 19.6],
        [1.4, 11.1],
        [-5.2, 3.2],
      ],
    },
    {
      name: 'Busan',
      data: [
        [0, 10],
        [3.5, 13.1],
        [5.6, 13.1],
        [10.8, 16.9],
        [11.5, 18.6],
        [13.6, 20.6],
        [15.2, 20.8],
        [21.8, 26.0],
        [17.8, 23.6],
        [11.3, 16.6],
        [4.4, 11.1],
        [3.2, 11.2],
      ],
    },
  ],
}

Stack Group Chart

The stack option allows multiple series to be displayed on a single stacked chart. Adding the stackGroup attribute allows multiple series to be stacked together according to the stackGroup.

const data = {
  categories: [
    '0 ~ 9',
    '10 ~ 19',
    '20 ~ 29',
    '30 ~ 39',
    '40 ~ 49',
    '50 ~ 59',
    '60 ~ 69',
    '70 ~ 79',
    '80 ~ 89',
    '90 ~ 99',
    '100 ~',
  ],
  series: [
    {
      name: 'Male - Seoul',
      data: [4007, 5067, 7221, 8358, 8500, 7730, 4962, 2670, 6700, 776, 131],
      stackGroup: 'Male',
    },
    {
      name: 'Female - Seoul',
      data: [3805, 4728, 7244, 8291, 8530, 8126, 5483, 3161, 1274, 2217, 377],
      stackGroup: 'Female',
    },
    {
      name: 'Male - Incheon',
      data: [1392, 1671, 2092, 2339, 2611, 2511, 1277, 6145, 1713, 1974, 194],
      stackGroup: 'Male',
    },
    {
      name: 'Female - Incheon',
      data: [1320, 1558, 1927, 2212, 2556, 2433, 1304, 8076, 3800, 6057, 523],
      stackGroup: 'Female',
    },
  ],
};

const options = {
  series: {
    stack: true
  }
};

visible

Each series can have visible option. The visible option determines whether the series is displayed when the chart is first drawn. The default is true. The basic chart, range, and stack group chart use the same way.

const data = {
  categories: ['Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
  series: [
    {
      name: 'Budget',
      data: [5000, 3000, 5000, 7000, 6000, 4000, 1000],
      visible: false,
    },
    {
      name: 'Income',
      data: [8000, 4000, 7000, 2000, 6000, 3000, 5000]
    },
    {
      name: 'Expenses',
      data: [4000, 4000, 6000, 3000, 4000, 5000, 7000]
    },
    {
      name: 'Debt',
      data: [3000, 4000, 3000, 1000, 2000, 4000, 3000]
    }
  ]
}

If you create a chart by applying the above option, you can see that the checkbox is unchecked.

colorByCategories

Each series can have colorByCategories option. The colorByCategories option determines whether to paint the bar color of the chart differently based on the categories. The default value is false.

const data = {
  categories: ['Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
  series: [
    {
      name: 'Budget',
      data: [5000, 3000, 5000, 7000, 6000, 4000, 1000],
      colorByCategories: true
    }
  ]
}

Options

options should be used as an object.

type options = {
  chart?: {
    // ...
  },
  xAxis?: {
    // ...
  },
  yAxis?: {
    // ...
  },
  legend?: {
    // ...
  },
  exportMenu?: {
    // ...
  },
  tooltip?: {
    // ...
  },
  plot?: {
    // ...
  },
  responsive?: {
    // ...
  },
  theme?: {
    // More explanations in the `theme` chapter.
  },
  series?: {
    stack?: boolean | {
      type: 'normal' | 'percent';
      connector?: boolean;
    };
    selectable?: boolean;
    eventDetectType?: 'point' | 'grouped';
    diverging?: boolean;
    dataLabels?: {
      visible?: boolean;
      anchor?: 'center' | 'start' | 'end' | 'auto';
      offsetX?: number;
      offsetY?: number;
      formatter?: (value) => string;
      stackTotal?: {
        visible?: boolean;
        formatter?: (value) => string;
      };
    };
  }
};

Common options that can be used with this chart are not addressed in this document. Refer to the respective options guide. (Links: chart Options, Axis, Legend, Export, Tooltip, Plot, responsive Options )

stack

The stack option allows multiple series to form a stacked chart. The stack chart includes 'normal' type and the 'percent' type. The stack.connector option can be used to display the connectors (the line segments that connect the series according to the categories).

normal Type

Setting series.stack to true is identical to setting stack.type to 'normal'.

const options = {
  series: {
    stack: true
  }
}

// or

const options = {
  series: {
    stack: {
      type: 'normal'
    }
  }
}

Setting the series.stack.connector to true displays the connectors.

const options = {
  series: {
    stack: {
      type: 'normal',
      connector: true
    }
  }
}

percent Type

Setting stack.type to 'percent' calculates the percentage of the sum for each and uses it to build the stack chart.

const options = {
  series: {
    stack: {
      type: 'percent'
    }
  }
}

Setting the connector option to true displays the connectors.

const options = {
  series: {
    stack: {
      type: 'percent',
      connector: true
    }
  }
}

selectable

Makes the series selectable.

default: false

const options = {
  series: {
    selectable: true
  }
};

selectable option, accompanied by on API's selectSeries and unselectSeries, grants further control over the series.

eventDetectType

Defines ways to select or detect the series via the mouse.

Type	Details
`point`	A single series is detected when a mouse comes within the individual series' detectable area. Only a single series is selected with respect to the current position of the cursor.
`grouped`	All data that are equal with respect to the y-axis are detected.

default: point

Setting the eventDetectType to 'grouped' will detect all series that are equal with respect to the y-axis.

const options = {
  series: {
    eventDetectType: 'grouped'
  }
};

diverging

The diverging option, when used, allows users to create a diverging bar chart that diverges from the center like the population distribution chart. The diverging chart uses the first element as well as the second element from the data.series.

default: false

const data = {
    categories: [
    '100 ~',
    '90 ~ 99',
    '80 ~ 89',
    '70 ~ 79',
    '60 ~ 69',
    '50 ~ 59',
    '40 ~ 49',
    '30 ~ 39',
    '20 ~ 29',
    '10 ~ 19',
    '0 ~ 9',
  ],
  series: [
    {
      name: 'Male',
      data: [383, 3869, 39590, 136673, 248265, 419886, 451052, 391113, 352632, 296612, 236243],
    },
    {
      name: 'Female',
      data: [1255, 12846, 83976, 180790, 263033, 412847, 435981, 374321, 317092, 272438, 223251],
    },
  ],
};

const options = {
  series: {
    diverging: true
  }
};

Setting the yAxis.align to be 'center' centers the y-axis of the diverging chart to be at the middle of the graph.

const options = {
  yAxis: {
    align: 'center'
  },
  series: {
    diverging: true
  }
};

dataLabels

Data labels display information regarding the series on the chart. The following are the options for dataLabels.

type options = {
  ...
  series?: {
    dataLabels?: {
      visible?: boolean;
      offsetX?: number;
      offsetY?: number;
      formatter?: (value) => string;
      anchor: 'start' | 'center' | 'end' | 'auto';
      stackTotal?: {
        visible?: boolean;
        formatter?: (value) => string;
      };
    };
  };
};

Name	Type	Details
`visible`	boolean	Whether to make the data label visible
`offsetX`	number	X offset of the data label position
`offsetY`	number	Y offset of the data label position
`formatter`	function	Takes the value of the data as its parameter and defines the format to be displayed
`anchor`	'start' \| 'center' \| 'end' \| 'auto'	Position of the data label (default: `'auto'`)
`stackTotal`	object	Defines the options related to displaying the total sum of the stack bar chart
`stackTotal.visible`	boolean	Whether to display the total sum label. If the chart is a stack chart, the default value is `true`.
`stackTotal.formatter`	function	Takes the value of data sum as its parameter and defines the format to be displayed

// Basic
const options = {
  series: {
    dataLabels: { visible: true }
  }
};

// Stack bar chart
const options = {
  series: {
    stack: true,
    dataLabels: { visible: true }
  }
};

Series Theme

The following is a list of themes that can be modified in the Bar chart. The value for the data label style includes the basic labels, and when used with stack bar chart, it can be used to style the sum label that is displayed. Themes can be used to create a text bubble with a tail.

interface BoxChartSeriesTheme {
  barWidth?: number | string;
  areaOpacity?: number;
  colors?: string[];
  hover?: {
    color?: string;
    borderColor?: string;
    borderWidth?: number;
    shadowColor?: string;
    shadowOffsetX?: number;
    shadowOffsetY?: number;
    shadowBlur?: number;
    groupedRect?: {
      color?: string;
      opacity?: number;
    };
  };
  select?: {
    color?: string;
    borderColor?: string;
    borderWidth?: number;
    areaOpacity?: number;
    shadowColor?: string;
    shadowOffsetX?: number;
    shadowOffsetY?: number;
    shadowBlur?: number;
    groupedRect?: {
      color?: string;
      opacity?: number;
    };
    restSeries?: {
      areaOpacity?: number;
    };
  };
  connector?: {
    color?: string;
    lineWidth?: number;
    dashSegments?: number[];
  };
  dataLabels?: CommonDataLabelBubbleTheme & {
     stackTotal?: CommonDataLabelBubbleTheme;
  };
}

type CommonDataLabelBubbleTheme = {
  useSeriesColor?: boolean;
  lineWidth?: number;
  textStrokeColor?: string;
  shadowColor?: string;
  shadowBlur?: number;
  fontSize?: number;
  fontFamily?: string;
  fontWeight?: string | number;
  color?: string;
  textBubble?: {
    visible?: boolean;
    paddingX?: number;
    paddingY?: number;
    backgroundColor?: string;
    borderRadius?: number;
    borderColor?: string;
    borderWidth?: number;
    shadowColor?: string;
    shadowOffsetX?: number;
    shadowOffsetY?: number;
    shadowBlur?: number;
    arrow?: {
      visible?: boolean;
      width?: number;
      height?: number;
      direction?: 'top' | 'right' | 'bottom' | 'left';
    };
  };
};

Name	Type	Details
`barWidth`	number \| string	Width of the series box
`areaOpacity`	number	Opacity of the entire area when all series are selected
`colors`	string[]	Colors for the series
`hover`	object	Style used when the cursor hovers over the series
`hover.groupRect`	object	Style used for the box area that covers the chart with respect to the y-axis when `series.eventDetectType: 'grouped'`
`select`	object	Style used when the series is selected and `series.selectable: true`
`select.areaOpacity`	number	Opacity of the selected series
`select.groupRect`	object	Style used for the box area that is selected with respect to the y-axis when `series.eventDetectType: 'grouped'`
`select.restSeries`	object	Style for series that have not been selected
`dataLabels`	object	Style for the data labels
`dataLabels.useSeriesColor`	boolean	Whether to use the series colors for the data label texts
`dataLabels.lineWidth`	number	Text stroke width
`dataLabels.textStrokeColor`	string	Text stroke color
`dataLabels.shadowColor`	string	Text shadow color
`dataLabels.shadowBlur`	number	Text shadow blue
`dataLabels.fontSize`	number	Font size
`dataLabels.fontFamily`	string	Font name
`dataLabels.fontWeight`	string	Font weight
`dataLabels.color`	string	Text color; does not work when `useSeriesColor: true`
`dataLabels.textBubble`	object	Text bubble configurations
`dataLabels.textBubble.visible`	boolean	Whether to use the text bubble
`dataLabels.textBubble.paddingX`	number	Horizontal padding
`dataLabels.textBubble.paddingY`	number	Vertical padding
`dataLabels.textBubble.backgroundColor`	string	Text bubble background color
`dataLabels.textBubble.borderRadius`	number	Text bubble border radius
`dataLabels.textBubble.borderColor`	string	Text bubble border color
`dataLabels.textBubble.borderWidth`	number	Text bubble border width
`dataLabels.textBubble.shadowColor`	string	Text bubble shadow color
`dataLabels.textBubble.shadowOffsetX`	number	Text bubble shadow x offset
`dataLabels.textBubble.shadowOffsetY`	number	Text bubble shadow y offset
`dataLabels.textBubble.shadowBlur`	number	Text bubble shadow blur
`dataLabels.textBubble.arrow`	object	Text bubble arrow configurations
`dataLabels.textBubble.arrow.visible`	boolean	Whether to use the text bubble arrows
`dataLabels.textBubble.arrow.width`	number	Arrow base width
`dataLabels.textBubble.arrow.height`	number	Arrow height
`dataLabels.textBubble.arrow.direction`	'top' \| 'right' \| 'bottom' \| 'left'	Arrow direction
`dataLabels.stackTotal`	object	Label styles for stack charts; all style options available to `dataLabels` are also available with this option

The theme is configured using the theme option, and the series theme is configured using the theme.series. The following example changes the color, width, and the on-hover style for a bar series.

const options = {
  theme: {
    series: {
      barWidth: 5,
      colors: ['#EDAE49', '#D1495B', '#00798C', '#30638E'],
      hover: {
        color: '#00ff00',
        borderColor: '#73C8E7',
        borderWidth: 3,
        shadowColor: 'rgba(0, 0, 0, 0.7)',
        shadowOffsetX: 4,
        shadowOffsetY: 4,
        shadowBlur: 6,
      },
    }
  }
};

The code above results as shown below.

The code below applies a theme to the data label to use text bubbles and to change the text styles.

const options = {
  series: {
    stack: true,
    dataLabels: { visible: true }
  },
  theme: {
    series: {
      dataLabels: {
        fontFamily: 'monaco',
        lineWidth: 2,
        textStrokeColor: '#ffffff',
        shadowColor: '#ffffff',
        shadowBlur: 4,
        stackTotal: {
          fontFamily: 'monaco',
          fontWeight: 14,
          color: '#ffffff',
          textBubble: {
            visible: true,
            paddingY: 6,
            borderWidth: 3,
            borderColor: '#00bcd4',
            borderRadius: 7,
            backgroundColor: '#041367',
            shadowOffsetX: 0,
            shadowOffsetY: 0,
            shadowBlur: 0,
            shadowColor: 'rgba(0, 0, 0, 0)'
          }
        }
      }
    }
  }
};

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Creating the Chart

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Bar Chart

Creating the Chart

Basic Chart

Data Type

range Chart

Data Type

Stack Group Chart

visible

colorByCategories

Options

stack

normal Type

percent Type

selectable

eventDetectType

diverging

dataLabels

Series Theme