## normal property


Gets or sets the surface normal to the triangular facet.
### Definition:
```python
@property
def normal(self):
    ...
@normal.setter
def normal(self, value):
    ...
```

### See Also
* module [`aspose.cad.fileformats.stl.stllibrary.core.models`](../../)
* class [`NormalDataUnit`](/cad/python-net/aspose.cad.fileformats.stl.stllibrary.core.models/normaldataunit)
* class [`TriangularFacet`](/cad/python-net/aspose.cad.fileformats.stl.stllibrary.core.models/triangularfacet)