Ground excavation is used to excavate data to reveal internal structures. This function is applicable to terrain, city fine model, building white model, BIM and oblique photography 3D model data, and only supports use in spherical scenes.

Ground excavation can be applied to municipal engineering, urban planning and other fields.

Operating steps

1. Click the Terrain Analysis - Ground Excavation button to switch to the Ground Excavation Settings panel.



2. Check the data that participated in the analysis in the layer list. GlobalImage in the example data indicates terrain data. If checked, both terrain data and sphere skin in the scene will participate in excavation analysis.
3. Set the following parameters as required.
• Elevation: refers to the excavation depth, which represents the depth of downward excavation, and the unit is meters. Data deeper than the set value is not displayed.
• Subdivision interpolation: used to control the smoothness of the edges of the drawn excavation surface, which will affect the degree of conformity between the excavation side surface and the terrain. It is recommended to set reasonable subdivision interpolation data according to the edge length, so as to make the excavation side surface more closely conform to the terrain.
• Excavation method: used to set the data range retained after excavation. It is divided into outside the reserved area and inside the reserved area, indicating that the data outside the reserved display area and the data inside the reserved display area are retained respectively.
• Material settings: used to set the excavation bottom and side materials, click the material options box to set the bottom and side materials respectively.
4. When the setup is complete, click Analyze , then left click to draw the excavation area in the 3D scene, right click to finish drawing.
5. When you finish painting, analysis results are generated in the scene. The results of ground excavation are shown in the figure below.



6. From version 11.3.0, it is possible to continuously draw excavation surfaces and support the resetting of parameters before continuing to draw new excavation surfaces.
7. After finishing the analysis, click Clear to remove all excavation results in the scene.