DataV:Scatter Layer (Linear Gradient)

Settings Panel

• 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.

• Height: the height of the scatter layer relative to the spherical surface of the map. Valid values: 3 to 10.

• Minimum Radius: the minimum radius of the scatter.

• Maximum Radius: the maximum radius of the scatter.

  Note

  The scatter between the maximum radius and the minimum radius. The scatter between the maximum radius and the minimum radius is displayed based on the value of the value field.

• Animation Speed: the animation speed of the scattered dots. Valid value: 0 to 0.1.

• Transparency: the transparency of the scatter layer. Valid values: 0 to 1.

• Scatter Map: the map style of the scatter layer. You can paste the map URL to obtain the map.

• Default Color: If the type field in the data is inconsistent with the configuration items of the Scatter Type > type, the scatter is displayed in the default color.

• Scatter Type: Click the or icon to add or delete a scatter type. Click the or icon to configure the arrangement style of multiple scatter points. Click the icon to copy the current scatter type configuration and add a scatter type with the same configuration.

  Parameter	Description
  type	The value of the type corresponds to the type field in the data.
  Color	The color of the lower scatter of this type. Note This configuration items can be an array. You can configure multiple series in this configuration items. The point corresponding to type field in the data is rendered with the color under this series. If type fields in the data are not present in this configuration items, they are rendered in the default color.

Data Panel

Configuration field description

Table 1. Parameters

Parameter	Description
Controlled Mode	If 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 Request	After 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 Source	In 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 Filter	If 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 Result	The response to a data request. If the data source changes, you can click the 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, click the icon next to Scatter Layer (Linear Gradient) in the 3D Earth widget list.

2. Click the icon in the upper-left corner of the page.

3. In Blueprint Editor, click the Scatter Layer (Linear Gradient) widget in the Added Nodes pane. You can view the parameters of the Scatter Layer (Linear Gradient) widget on the canvas, as shown in the following figure.

   • Event

     Event	Description
     When the scatter layer request is completed	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.
     When a scatter layer request fails	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.

   • Policy Action

     Policy Action	Description
     Request Scatter Layer	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, if the API data source is https://api.test for the scatter layer (linear gradient) and the data passed to the request scatter layer action is { id: '1'}, the final request interface is https://api.test?id=1.
     Import Scatter Layer	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.
     Display	A widget is shown without the need to specify parameters.
     Hide	A widget is hidden without the need to specify parameters.