> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Surface Rule

### Properties

| Id for nTopCL | UI Label                       |
| ------------- | ------------------------------ |
| 0             | Surface edges                  |
| 1             | Surface vertex centroid        |
| 2             | Surface dual                   |
| 3             | Surface boundary               |
| 4             | Surface features               |
| 5             | Quad central axis face surface |
| 6             | Tri prism surface              |