# Sandbox.PolygonMesh.AddVertexToEdgeAndUpdateTable

```csharp
bool AddVertexToEdgeAndUpdateTable(VertexHandle hVertexA, VertexHandle hVertexB, float flParam, out VertexHandle pNewVertex, SortedSet<HalfEdgeHandle> pEdgeTable)
```

### Parameters

- `hVertexA` (`VertexHandle`)
- `hVertexB` (`VertexHandle`)
- `flParam` (`float`)
- `out pNewVertex` (`VertexHandle`)
- `pEdgeTable` (`SortedSet<HalfEdgeHandle>`)

### Returns

`bool`

Declared in [Sandbox.PolygonMesh](/api/Sandbox.PolygonMesh).
Assembly: `Sandbox.Engine`.