---
title: contentScaleFactor
framework: mapkit
role: symbol
role_heading: Instance Property
path: mapkit/mkoverlayrenderer/contentscalefactor
---

# contentScaleFactor

The scale factor for drawing the overlay’s content.

## Declaration

```swift
var contentScaleFactor: CGFloat { get }
```

## Discussion

Discussion The scale factor determines how the overlay renders map content from the logical coordinate space (in points) to the device coordinate space (in pixels). This value is typically either 1.0 or 2.0. Higher scale factors indicate that each point represents more than one pixel on the screen. For example, if the scale factor is 2.0 and the drawing rectangle size is 50 x 50 points, the size of the underlying area is 100 x 100 pixels. When drawing the content for your overlays, you can use this value to determine how best to render your content.

## See Also

### Attributes of the overlay

- [overlay](mapkit/mkoverlayrenderer/overlay.md)
- [alpha](mapkit/mkoverlayrenderer/alpha.md)
- [blendMode](mapkit/mkoverlayrenderer/blendmode.md)