# `GSInstance axisExternalValueValueForId:`

*Instance Method*

Returns the external axis value for a specific ID.

## Declaration

```swift
func axisExternalValueValue(forId ID: String) -> CGFloat
```

```objc
- (CGFloat) axisExternalValueValueForId:(NSString *) ID;
```

```python
axisExternalValueValueForId_(ID: str) -> float
```

## Parameters

- `ID` — The ID of the axis.

## Return Value

The external axis value.