Dual-y-axis line chart

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The dual-Y-axis line chart component displays two data trends as lines or curves to analyze and compare changes in your data. This topic describes how to configure the component.

Step 1: Add the component

  1. Create a web application. For more information, see Create a web application.

  2. In the Web application editor, click the component icon 组件 on the left.

  3. In the component list on the left, enter dual-Y-axis line chart in the search box, and then drag the component onto the canvas.

    For more information about adding components, see Add a component.

Step 2: Configure a data source

  1. In the web editor, select the component. In the Style pane on the right, click Configure data source.

  2. On the Data source configuration page, select a data source type and complete the configuration.

    Available data source types include API, data table resource, static data, and application push.

  3. Click OK.

    On the Data display tab, the Data source section on the left shows the name of the configured data source. The Dimension and Measure sections list the attribute fields automatically parsed from the data source.

    Note

    Data source attribute fields are matched based on the following rules:

    • Dimension: boolean, string, and time fields.

    • Measure: numeric fields.

  4. Optional: Click Data table in the upper-left corner to view all data from the configured data source.

Step 3: Configure the data display

On the Data tab, set the data and style for the line chart.

  1. Drag fields from the Dimension and Measure sections to the horizontal axis, left vertical axis, and right vertical axis boxes.

    Note

    To change the default colors, go to the Properties or Style tab on the right side of the Data tab.

  2. Optional:In the horizontal axis, left vertical axis, or right vertical axis box, click the triangle icon next to a field to perform the following operations.

    Actions

    Description

    Aggregation method

    Options: Sum (default), Average, Maximum, Minimum, and Count.

    This feature is available only for measure fields. The configured aggregation method appears before the field name.

    After setting an aggregation method for a measure field, you can configure filter conditions to display specific data.

    Note

    This feature is available only when the component's data source type is Data Table Resource.

    Filter

    Add a field to the Filter section to use it as a filter item. You can then configure conditions based on this field to filter the displayed data. A maximum of 10 filters is supported.

    Alternatively, from the Dimension or Measure section on the left, you can click the triangle icon next to a field to add it to the Filter section.

    Note

    This feature is available only when the component's data source is a data table resource. For more information, see Configure filters.

    Set display name

    Edit the display name of the field.

  3. On the right of the Data Display tab, click Style to configure the display style of the component.

    Parameter

    Description

    Global styles

    Configure global style settings, such as font, whether to show data points, use smooth curves, apply area fill, and connect points across breaks.

    Title

    Show or hide the title or legend. If visible, you can customize their appearance.

    Legend

    x-axis

    Show or hide tick labels on the X-axis or Y-axis. If visible, you can customize their appearance.

    Note

    The number of Y-axis ticks is based on the range of values and the specified interval. For example, if the minimum value is 0, the maximum value is 500, and the interval is 50, the number of ticks is 11.

    left/right y-axis

    Label

    These settings control the visibility and appearance of data point labels, grid lines, background color, and borders.

    Horizontal grid lines

    Background

    Border

    No data prompt

    Configure the message that appears when the component has no data.

  4. Click Complete Configuration to return to the web application editor and view the configured component data.

  5. Adjust the component's position on the page. For more information about general component style settings, see Configure styles.

Step 4: Configure interactions

  1. In the Interaction panel on the right side of the web application editor, click Add Interaction, and then set an event and an action.

    This component supports the Mouse In event. For example, you can set the Mouse In event to trigger a Show/Hide action that reveals a hidden component with additional information.

    For more information, see Interaction configuration.

  2. Click Preview in the upper-right corner of the page to view and debug the component's data and style.