3D Object Data Source

A 3D object data source contains 3D objects (e.g., buildings or trees), which can be generated, for example, from a CityGML database or CityGML file assigned to the project using the 3D Object Task. Alternatively, a 3D object data source from an external source (e.g., 3D mesh or 3D point cloud as 3D Tiles) can also be integrated.

Option	Description
Name	Name of the Datasource.
Description	Description of the Datasource (optional).
Bounding Box	Describes the bounding box of the data. Clicking the button "Edit Bounding Box" opens a new map window where a bounding box can be defined interactively. Clicking the button "Draw new extent on map" activates the bounding box mode, allowing the user to define a bounding box by clicking twice on the map (e.g., top-right and bottom-left corners of the bounding box). The coordinates of the bounding box are automatically adopted in EPSG 4326. Clicking the button "CLOSE" closes the map window.
URI	URI of the datasource.

Option

Description

Name

Name of the Datasource.

Description

Description of the Datasource (optional).

Bounding Box

Describes the bounding box of the data.
Clicking the button "Edit Bounding Box" opens a new map window where a bounding box can be defined interactively. Clicking the button "Draw new extent on map" activates the bounding box mode, allowing the user to define a bounding box by clicking twice on the map (e.g., top-right and bottom-left corners of the bounding box). The coordinates of the bounding box are automatically adopted in EPSG 4326.
Clicking the button "CLOSE" closes the map window.

URI

URI of the datasource.

Screen-space error

Defines the error in pixels to determine the Hierarchical Level of Detail (HLOD) (Note: This is not the CityGML LoD concept!). HLOD is required for efficient streaming of 3D objects. It defines whether a tile is sufficiently detailed for the current view and is loaded, or whether the more detailed children of the current tiles are loaded. Normally, the default settings (16) can be used.

Screen-space error (Mobile)

Defines the screen-space error for mobile devices. For good performance on mobile devices, it is recommended to set the screen-space error for mobile devices higher than for non-mobile devices. The default value is 32.

Is Point Cloud

Activate this option if the 3D object data source is a point cloud (*.pnts). Otherwise, it is assumed that the 3D object data source is a 3D data source containing mesh geometry data (*.b3dm or *.gltf).

Data Preview

The data preview allows a visual check of the configured data source before publication. It displays the data in the map window using the selected projection and within the defined extent. Users can interactively pan and zoom the map to review the display.
Changes to the data source or the extent are applied to the preview after clicking “Reload Map.”