The data catalog in GPAModelBuilder provides access to portal data. It displays data you have permissions for, allowing you to drag selected data onto the canvas and connect it to other operators for automated processing and modeling workflows.

Before using data, the administrator needs to configure the iPortal root address on the iPortal "Management" > "Servers" > "Server List" page, and configure Data meta-information Storage under "Management" > "Site Configuration" > "Data Storage" to request data storage information.

Viewing Data

Click "Data" in the left sidebar to view the data available for modeling in the data catalog:

  • Default Directory: Displays your data resources as two types: file‑based data and relational databases. Currently, file‑based data supports SuperMap UDB, ShapeFile, and FileGDB; relational databases support POSTGIS and MYSQL. You can expand the directory to view data sources and dataset lists.
  • My Directory: Displays your data resources. Custom directories can be created on the "Resource Center" > "Data" > "My Data" page.
  • Shared Directory: Displays UDB / UDBX / FileGDB data resources from personal shared directories.

Viewing Data Metadata

You can view data metadata in the following ways:

  • Select the data and click "View Metadata" to open the metadata window.
  • Drag the data onto an empty area of the canvas, click the data, then in the right panel view the data name and type. Click "View Details" in the panel to open the metadata window.

Data metadata includes:

  • Data Source Type: Includes file‑based and relational database.
  • Dataset: Dataset name.
  • Type: Dataset type.
  • Geometry Type: Point, line, or polygon.
  • Coordinate System: The dataset's coordinate system.
  • Data Volume: The number of features in the dataset.
  • Creator: The data creator.
  • Creation Time: The data creation time.
  • Dataset Details: Attribute information (presented as a table with field name, display name, and data type) and spatial information (previewed on a map below).

Refreshing a Data Source

When datasets are added, deleted, or modified, you can click the "Refresh" button corresponding to the data source to refresh it.

Using Data

You can drag a data source or dataset onto the canvas as a data parameter and connect it to other tools' parameters. After connection, the source dataset of the tool parameter will be automatically populated with the data parameter name, eliminating the need for manual entry.

If a tool parameter configuration includes field selection, after you connect a dataset to the tool parameter, the tool parameter will recognize all fields of that dataset for selection.

After configuring parameters, click the "Run" button in the upper‑left corner to run the entire model sequentially through the complete processing automation workflow.