Trajectory layer

Chart style

The trajectory layer is a 3D Earth component with independent style and data configuration. It uses trajectory lines to display transition effects between two or more geographic locations, simulating motion paths.

Style panel

• Search Configuration: Click the Style icon in the upper right corner of the panel to enter the name of the configuration item you wish to locate in the search field. The system supports fuzzy matching. For more information, see Search configuration item.

• Layer Height: The height of the trajectory layer above the Earth's surface. Valid values: 0.1 to 10.

• Trajectory Length: The length of the motion trajectory line. Valid values: 0 to 1.

• Trajectory Interval: The interval duration for the repeated motion of the trajectory line. Valid values: 0 to 1.

• Trajectory Speed: The motion speed of the trajectory line. Valid values: 0 to 0.05.

• Trajectory Color: The color of the trajectory line. For more information, see the color picker.

• Trajectory Transparency: The transparency of the trajectory line. Valid values: 0 to 1.

• Data Classification: Segments data into 2 to 7 levels based on the value field (natural segmentation) to handle rendering issues caused by large value disparities.

• Trajectory Thickness (from Thin To Thick): Click the or icons to add or remove a type. Use the or icons to rearrange types. Click the icon to duplicate the selected type.

  Trajectory Width: The maximum width for the trajectory within this type.

  Important

  This configuration item is an array that works in tandem with data classification, set incrementally from type 1 to type n. For example, if type 1 is set to 10, data with a value from 0 to 10 appears as size 10. If type 2 is set to 20, data with a value from 11 to 20 appears as size 20. When data classification is set to 3 levels, the type 3 value represents the size for data values above 20.

Data source panel

Advanced panel

This component does not support interaction events.

Blueprint interaction

1. To access the Blueprint page, click the icon in the upper left corner.

2. In the Layer Node tab, add the current component to the main canvas.

3. Review the blueprint configuration parameters.

   • Event

     Event	Description
     When The Data Interface Request Is Completed	Triggered when the trajectory layer data interface request is complete. The filter processes the data and outputs the result in JSON format.

   • Action

     Action	Description
     Request Data Interface	Re-requests server data, using data from the input data processing node or layer node as parameters. For example, if the trajectory layer uses an API data source such as https://api.test, and the data passed to the Request Data Interface action is { id: '1'}, the final request URL becomes https://api.test?id=1.
     Import Data Interface	Imports processed data in the rendering format and redraws the component without sending a new server data request.
     Switch Visibility	Toggles the visibility of the component. No parameters required.
     Show	Shows the component. See the following data example. { "animationType": "",//Animation type. Optional value: fade. No animation if not filled. "animationDuration": 1000,//Animation latency in ms. "animationEasing": ""//Animation curve }
     Hide	Hides the component. See the following data example. { "animationType": "",//Animation type. Optional value: fade. No animation if not filled. "animationDuration": 1000,//Animation latency in ms. "animationEasing": ""//Animation curve }
     Update Component Configuration	Dynamically updates the component style configuration. To obtain the configuration data, click Copy Configuration To Clipboard in the component's Style panel, then modify the corresponding style field values in the data processing node on the blueprint editor page.