# `GSLayer keyForAttributeCoordinates`

*Instance Method*

A stable key describing the complete Intermediate-layer location.

## Declaration

```swift
func keyForAttributeCoordinates() -> String?
```

```objc
- (NSString *) keyForAttributeCoordinates;
```

```python
keyForAttributeCoordinates() -> str
```

## Discussion

Missing coordinates use the associated master value or the axis default. Returns an empty string when the layer has no coordinates.

## See Also

### Intermediate Layers

- [`GSLayer.coordinates`](/Core/GlyphsCore/GSLayer/coordinates) — Explicit Intermediate-layer coordinates keyed by axis ID.
- [`GSLayer coordinateForAxisId:`](/Core/GlyphsCore/GSLayer/coordinateForAxisId:) — Returns an explicit Intermediate-layer coordinate, or `NSNotFound` when no coordinate is set for the axis.
- [`GSLayer braceCoordinateAxes`](/Core/GlyphsCore/GSLayer/braceCoordinateAxes) — Axes represented by Intermediate-layer coordinates.
- [`GSLayer braceAxesValuesList:axes:`](/Core/GlyphsCore/GSLayer/braceAxesValuesList:axes:) — Copies explicit Intermediate-layer coordinates into an axis-value buffer.
- [`GSLayer axesValuesList:axes:`](/Core/GlyphsCore/GSLayer/axesValuesList:axes:) — Copies the internal values for the requested axes into a buffer.
- [`GSLayer descriptionForAttributeCoordinates`](/Core/GlyphsCore/GSLayer/descriptionForAttributeCoordinates) — A display description of the explicit Intermediate-layer coordinates.