# Sandbox.UI.CanvasPanel.ZoomAt

```csharp
void ZoomAt(Vector2 screenAnchor, float factor)
```

Scale the visible span while keeping the screen anchor fixed.

### Parameters

- `screenAnchor` (`Vector2`)
- `factor` (`float`)

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