Table 2 The list of main classes and the class hierarchy
From: Knowledge graph representation method for semantic 3D modeling of Chinese grottoes
Class name | Superclass | Description |
|---|---|---|
Chinese Grottoes | geo: SpatialObject | An abstract term that generally refers to the grottoes in an area |
Grotto Group | Chinese Grottoes | A Chinese Grotto contains multiple grotto groups |
Cave and Niche | Grotto Group | A basic unit of grottoes and several caves and niches constitute the grottoes group |
Cave roof | Cave and Niche | The top of the cave, exclusive to the cave |
Niche eave | Cave and Niche | A protrusion at the top of a niche |
Cliff wall | Cave and Niche | A cave contains multiple cliff walls, while a niche has only one |
Cliff wall footing | Cave and Niche | Located at the bottom of the cliff wall, protecting the cave and niche |
Primary Buddha statue | Cave and Niche | One or a series of statues that are the most dominant in the cave and niche |
Other Buddha statue | Cave and Niche | Disciples, guards, or decorative statues of the main Buddha |
Decoration | Cliff Wall | A decorative design on the facade of a cave and niche |
Pedestal | Cliff Wall | Located at the bottom of a Buddha statue, the Buddha stands or sits on the pedestal |
Inscription | Cliff Wall | Flat cliffs or stone tablets with inscriptions |
Mountain | Natural Environment | The mountain blends into the cave and niche |
Vegetation | Natural Environment | The vegetation around the cave and niche |
River | Natural Environment | The water system around the cave and niche |
Road surface | Artificial Environment | Man-made landscape road |
Guardrail | Artificial Environment | Grottoes scenic area man-made safety facilities |
Data structure | Data Object | The data structure of the point cloud |
Point cloud density | Data Object | The average density of a point cloud data |