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DataV:The Comparison Pie Chart I widget

Last Updated:May 11, 2023

This topic describes the chart style and configuration panel of the percentage pie chart.

Chart Style

A percentage pie chart chart is a type of pie chart. Compared with a basic pie chart, a percentage pie chart chart can display the actual value and percentage value of data at the same time. It is suitable for displaying the comparison of two metric data. Only two data series can be configured.

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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.
  • Font Family: the font of all text in the widget. Default value: Microsoft Yahei.

  • Container

    Padding: the distance between the pie chart and the left boundary and upper and lower borders of the widget. Unit: pixels. If it is too large, the pie chart will break out of the chart.

  • Label: the label style of the pie chart. You can click the 开关图标icon to display or hide the label.

    Parameter

    Description

    Font Color

    The colors of the upper and lower labels are modified by referring to the color picker instructions.

    Font Size

    The font size of the tag. Valid values: 12 to 100.

    Font Weight

    The font weight of the label.

  • Chart

    Parameter

    Description

    Radius

    The radius of the pie chart.

    Color

    The color of the percentage in the pie chart.

    Decoration Color

    The color of the outer border and center point of the pie chart.

    Background Color

    The background color of the pie chart.

    Font Size

    The size of the text in the pie chart. Valid values: 12 to 100.

    Font Weight

    The font weight of the text in the pie chart.

    Margin

    The distance between the pie chart and the four sides, including:

    • Top: the distance between the top label and the top label of the pie chart.

    • Bottom: the distance between the bottom label and the bottom label of the pie chart.

    • Left: the distance between the pie chart and the left side of the icon.

    • Right: the distance between the pie chart and the right side of the icon.

    Angle Offset

    The starting offset angle of the sector in the pie chart. Valid values: 0 to 360.

  • Series: the data series of the pie chart. Two series are supported. You cannot add or delete a series.

    • Series 1

      Color: the color of the sector in the pie chart.

    • Series 2

      Color: the color of the sector in the pie chart.

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

    • Original Duration: the duration of the first animation rendered by the component. Unit: ms.

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

    • Duration for Data Update: the animation duration when the widget data is updated. Unit: ms.

Data Panel

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Configuration field description

Parameter

Description

x

The category of the series label.

y

The value of the series label.

Note

The sector percentage in a pie chart is the percentage of the corresponding series label value to the total value, which is automatically calculated by the system and displayed in the corresponding area.

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 Comparison Pie Chart I in the Imported Nodes pane. You can view the percentage pie chart parameters in the canvas, as shown in the following figure. 指标对比饼图蓝图参数

    • 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, percentage pie chart the API data source is configured as https://api.test and the data transferred 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.

      Clear Widget

      A widget text is cleared without the need to specify parameters.

      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 how to hide a 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"
            }
          }