# `GSLayer metricsTransform`

*Instance Method*

The transform used to draw metrics in layer coordinates.

## Declaration

```swift
func metricsTransform() -> AffineTransform?
```

```objc
- (NSAffineTransform *) metricsTransform;
```

```python
metricsTransform() -> NSAffineTransform
```

## Discussion

Italic layers return a shear transform around the slant height. Returns `nil` when no transform is needed.

## See Also

### Metrics Geometry

- [`GSLayer metricsBoundsInWritingDirection:`](/Core/GlyphsCore/GSLayer/metricsBoundsInWritingDirection:) — The metrics rectangle for a writing direction.