# `GSGlyphEditView showInterpolationAtAxisLocation:`

*Instance Method*

Shows a non-editable interpolation preview at `axisLocation` (axis ID to coordinate).

## Declaration

```swift
func showInterpolation(atAxisLocation axisLocation: [String : NSNumber]?)
```

```objc
- (void) showInterpolationAtAxisLocation:(NSDictionary<NSString *,NSNumber *> *) axisLocation;
```

```python
showInterpolationAtAxisLocation_(axisLocation: dict[str, NSNumber])
```

## Discussion

Passing `nil` is equivalent to [`GSGlyphEditView resetInterpolation`](/Core/GlyphsApp/GSGlyphEditView/resetInterpolation).

It is the responsibility of the caller to trigger a reflow afterwards.