Import S-421

Feature Description

SuperMap iDesktopX supports importing *.gml data that conforms to the S-421 product specification into file databases, database datasources (PostGIS or DMPlus), or EMS datasources. During import, you can specify a matching S-421 feature catalogue (FC). After import, S-421 data can be added to the map window, and planned route features can be symbolically displayed according to the display catalogue specification.

Version Information

SuperMap iDesktopX supports S-421 data import starting from the 2026 version.

Function Entry

  • In the workspace manager, right-click the target datasource and select Import Nautical Chart Data > S-421.

Operation Instructions

  1. Open or create a datasource in the workspace to store the *.gml files, and ensure that the datasource is editable.
  2. Select the target datasource, and choose Import Nautical Chart Data > S-421 from the context menu; alternatively, in the Data Processing group on the Start tab, select Data Import > Chart > S-421.
  3. In the Import Nautical Chart Data dialog box, select one or more S-421 *.gml files. Set the file type to S-421 file (*.gml), and click Open.
  4. In the S-421 Import dialog box, review the files to be imported and set the Target Datasource and FC as needed. The dialog box provides the following information:
    • Source File: Displays the file name of the S-421 data to be imported.
    • Source Data: Displays the file path of the source data.
    • Target Datasource: Displays the target datasource for import. You can select other editable data sources in the current workspace.
    • FC: Sets the S-421 feature catalogue. You should select an FC that matches the version of the source data. Currently, only S421_FC_1.0.0 is supported. After selecting the FC, the system automatically matches the corresponding version of the PC (display catalogue) and displays features in the map according to the display rules of that version.
  5. After confirming that the files, target datasource, and FC are correct, click Import. Once the import is complete, the S-421 data will be saved to the target datasource.
Note:

The file path of the imported data must not contain Chinese characters.

Related Topics

S-421 Planned Route

Browse S-421