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DataV:The Stacked Donut Chart widget

Last Updated:Jun 13, 2023

This topic describes the chart style and configuration panel of the stacked donut chart.

Chart Style

A stacked donut chart chart is a type of pie chart. Compared with a basic pie chart, a stacked donut chart chart can display the actual value of the expected goal and the current progress at the same time, as well as the percentage value of the current progress to the expected goal. It is suitable for displaying the completion status of the current task.

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Settings Panelimage..png

  • Search for Configurations: In the right-side panel of Canvas Editor, click the Settings tab, and click Search for Configurations in the upper-right corner. Enter the required configuration item in the search box, and click the search icon to quickly locate the configuration item. Fuzzy match is supported. For more information, see Search for asset configurations.
  • Size: indicates the size of a widget, including its pixel width and height. You can click the Proportional resizing icon to proportionally adjust the width and height of a widget. After you click this icon again, you can adjust the width and height as needed.
  • Position: the position of a widget, which is indicated by pixel X and Y coordinates. X-coordinate indicates the pixel distance between the upper-left corner of the widget and the left border of the canvas. Y-coordinate indicates the pixel distance between the upper-left corner of the widget and the upper border of the canvas.
  • Rotation Angle: the angle of a rotation that uses the center point of a widget as the rotation point. The unit is degrees (°). You can use one of the following methods to control the rotation angle of a widget:
    • Directly enter the degrees in the Rotation Angle spin box or click the plus sign (+) or minus sign (-) to increase or decrease the value in the Rotation Angle spin box.
    • Drag the black dot in the Rotation control icon icon.
    • Click the Horizontal flip icon to horizontally flip a widget.
    • Click the Vertical flip icon to vertically flip a widget.
  • Opacity: the opacity of a widget. Valid values: 0 and 1. If this parameter is set to 0, the widget is hidden. If this parameter is set to 1, the widget is completely displayed. Default value: 1.
  • Container: the container size of the pie chart widget.

    Padding: the distance between the lower end of the pie chart and the upper and lower edges of the container.

  • Text Area: the style of the upper and lower labels in the pie chart. Click the 眼睛图标icon to turn the text style on or off. image..png

    Parameter

    Description

    Font Family

    The font family of all text in the widget. Default value: Microsoft Yahei.

    Font Color

    The color of the label text above and below the pie chart.

    Goal Text

    The display text for the label below the pie chart.

    Current Progress Text

    The display text of the label above the pie chart.

    Font Size

    The size of the label text above and below the pie chart. Valid values: 12 to 100.

    Font Weight

    The thickness of the label text above and below the pie chart.

  • Chart 图表部分内容

    Parameter

    Description

    Inner Radius

    The radius of the inner edge of the circle in the pie chart.

    Outer Radius

    The radius of the circle in the pie chart.

    Progress Color

    The color of the progress ring. Color fill and gradient fill are supported. For more information, see color picker instructions.

    Goal Color

    The color of the target ring (the bottom ring below the progress ring).

    Excess Color

    The color of the out-of-bounds ring. When the progress is greater than the target, it will be displayed as a circle of out-of-bounds rings.

    Inner Color

    The color of the inner ring.

    Inner Line Color

    Color of the inner slash of the ring.

    Inner Lable Color

    The color of the indicator text inside the ring.

    Font Size

    The size of the indicator text in the ring. Valid values: 12 to 100.

    Font Weight

    The thickness of the indicator text in the ring.

    Border Size

    The thickness of the inner ring. Unit: px.

    Margin

    The distance between the upper and lower labels of the outer circle of the pie chart.

    • Top: the distance between the outer ring of the pie chart and the top label. Unit: pixels.

    • Bottom: the distance between the outer ring of the pie chart and the lower label. Unit: pixels.

    Automatic Decimal Places

    If you turn on the switch, you cannot set the number of decimal places. If you turn off the switch, you can customize the number of decimal places.

    Decimal Places

    The number of decimal places for the target percentage value.

  • Animation: the animation effect style of the widget. You can click the 眼睛图标icon to enable or disable the animation effect. image..png

    Parameter

    Description

    Original Duration

    The duration of the first animation rendered by the component. Unit: ms.

    Easing

    The easing effect of animation. The system provides a variety of common easing effects for you to choose from.

    Duration for Data Update

    The duration of the animation when the widget data is updated. Unit: ms.

    Update from Latest Status

    If the switch is turned on, the animation starts from the position of the previous data when the component data is updated. If the switch is turned off, the animation starts from the initial position when the component data is updated.

Data Panel

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Configuration field description

Parameter

Description

aims

The expected target value.

actual

The current progress value.

Note

The progress value in the preceding figure is greater than the target value. In this case, an out-of-bounds ring is displayed on the visualization application.

Table 1. Parameters
ParameterDescription
Controlled ModeIf you turn on the switch, data is not requested when a widget is initialized. Data requests are triggered only based on callback IDs or the method configured in Blueprint Editor. If you turn off the switch, data requests are automatically triggered. By default, the switch is turned off.
Auto Data RequestAfter you select the Auto Data Request check box, you can enable dynamic polling, and manually specify the polling interval. If you do not select this check box, data is not automatically requested. You must manually refresh the page to request data or use Blueprint Editor or callback ID events to trigger data requests.
Data SourceIn the right-side panel of Canvas Editor, click the Data tab. Click Set next to Static Data. In the Configure Datasource panel, select a data source from the Data Source Type drop-down list. Enter code for data query in the code editor, click Preview Data Response to preview the response of the data source, and then view the response. For more information, see Configure asset data.
Data FilterIf you select the Data Filter check box, you can convert the data structure, filter data, and perform simple calculations. If you click the plus sign (+) next to Add Filter, you can configure the script for the data filter in the editor that appears. For more information, see Use the data filter.
Data Response ResultThe response to a data request. If the data source changes, you can click the Refresh icon icon next to Data Response Result to view the data response in real time.

Interaction Panel

This widget does not support interaction events.

Configure interactions in Blueprint Editor

  1. In Canvas Editor, right-click a widget in the Layer panel and select Add to Blueprint Editor.
  2. Click the Blueprint Editor icon icon in the upper-left corner of the page.
  3. In Blueprint Editor, click Stacked Donut Chart in the Added Nodes pane. You can view the stacked donut chart parameters in the canvas, as shown in the following figure. 目标占比饼图蓝图参数

    • Event

      Event

      Description

      On Completion of Chart Interface Request

      The event is triggered with the processed JSON data after a data interface request is responded and processed by a filter. For more information about specific data examples, see the Data Response Result section of the Data tab in the right-side configuration panel of the canvas editor.

      On Failure of Chart Interface Request

      The event that is returned when a data interface request fails (the request may be due to network problems or interface errors) and is processed by the filter. The event also throws the processed JSON data. For more information about specific data examples, see the Data Response Result section of the Data tab in the right-side configuration panel of the canvas editor.

    • Action

      Action

      Description

      Request Chart Interface

      This action is performed to request the server data again. The data sent by an upstream data processing node or layer node is used as a parameter. For example, stacked donut chart the API data source is configured as https://api.test, and the data passed to the Request Chart Interface is { id: '1'}, the final request interface is https://api.test?id=1.

      Import Chart Interface

      After data of a widget is processed in accordance with its drawing format, the widget is imported for redrawing. You do not need to request server data again. For more information about specific data examples, see the Data Response Result section of the Data tab in the right-side configuration panel of the canvas editor.

      Update Widget Configurations

      Style configurations of widgets are dynamically updated. In the Configuration panel, click Copy Configuration to Clipboard to obtain the configuration data of the component. After that, change the style field for the data processing node in Blueprint Editor.

      Show

      The following example shows the widget.

      return{
        "animationType": "",
        "animationDuration": 1000,
        "animationEasing": "linear"
      }

      Hide

      The following example shows the widget.

      return{
        "animationType": "",
        "animationDuration": 1000,
        "animationEasing": "linear"
      }

      Hide/Show

      The following example shows whether to show or hide a widget.

      return {
        "animationIn": {
          "animationType": "",
          "animationDuration": 1000,
          "animationEasing": "linear"
        },
        "animationOut": {
          "animationType": "",
          "animationDuration": 1000,
          "animationEasing": "linear"
        }
      }

      Move

      Move a widget to a specified location. The following example shows the reference data.

          return{      
            // The positioning type. to indicates absolute positioning, whereas by indicates relative positioning. The default value is to. 
              "positionType": "to",
            // The location, which is indicated by the x and y coordinates. 
            "attr": {
              "x": 0,
              "y": 0
            },
            // The animation type. 
            "animation": {
              "enable": false,
              // The duration in which animation is displayed. 
              "animationDuration": 1000,
              // The animation curve, which can be set to linear|easeInOutQuad|easeInOutExpo. 
              "animationEasing": "linear"
            }
          }