## add_vertex(self, index) {#int}

Adds a vertex index to the polygon



```python

def add_vertex(self, index):
    ...
```


| Parameter | Type | Description |
| :- | :- | :- |
| index | int |  |



### See Also
* module [`aspose.threed.entities`](../../)
* class [`PolygonBuilder`](/3d/python-net/aspose.threed.entities/polygonbuilder)