How to edit OSGB files and convert them into 3DTiles files?
GISBox provides the function of editing OSGB in the scene, and supports converting OSGB format to 3DTiles format file at the same time. The specific operation is introduced below.
1. Create a new scene
Open GISBox and click to switch to “Scene”, as shown below:
2. Import OSGB file
After successful creation, the scene project will be automatically opened. At this time, the GISBox software will prompt us to import OSGB/general model/SHP. We can directly import the OSGB file here.
After importing the OSGB file, as shown below
3. Edit OSGB file
After selecting the OSGB layer on the left, we can set “Display Tiles” in the “Style” on the right, which is closed by default.
In “Display Mode”, you can switch the display of the OSGB model. There are three display modes: “Normal Display”, “Display White Model” and “Display Wireframe”. As shown in the figure below, the model is displayed as a wireframe.
After selecting the tile layer in OSGB, you can adjust the tile’s “Position”, “Rotation” and “Scale” in the “Style” on the right.
In the “OSGB” option at the top of the interface, you can choose to edit the OSGB area in four ways: “Polygon”, “Polyhedron”, “Rectangle” and “Cube”.
In addition, we can also perform a “Flatten” operation on the OSGB model. We unify the model height of the selected area to the “Offset”, the default value of “Offset” is 0, and the part of the model whose height is lower than the “Offset” will not change. Click “Delete” to delete the model of the selected area, and click “Cancel” to withdraw the editing operation of the selected area.
[Tips] The flattened “Offset” is based on the height of the GIS scene and will not change with the position of the oblique photography. We can set it according to our needs.
After completion, click “Submit” and wait for the file to be written to complete the OSGB editing operation.
4. Convert OSGB to 3DTiles
Select the OSGB layer that needs to be converted into 3DTiles.
Then, click “File” at the top and select “Export Selected…”.
After setting the export path and tiling options, click “Create”. (For detailed instructions on using tiling options, please refer to the tutorial: How to convert OSGB files into 3DTiles files?)
[Tips] The “Save 3DTiles1.1” function will be turned on by default for the newly created slicing task. If it is not needed, please click to turn it off.
5. Stream the model
If the “Stream as service” option is selected in the settings for the tiling task, upon successful model tiling, it will be automatically distributed (generating a corresponding service address). We can click to open the corresponding service list, as shown in the figure below: (For detailed instructions, please refer to the tutorial: Model Service).
The generated service address can be applied to GIS platforms such as Cesium, and can also be applied to some digital twin project building platforms, such as Wings Engine.
