# `GSDrawEnvironment resolveExpression:withDefault:`

*Instance Method*

## Declaration

```swift
func resolveExpression(_ expression: Any?, withDefault defaultValue: CGFloat) -> CGFloat
```

```objc
- (CGFloat) resolveExpression:(id) expression withDefault:(CGFloat) defaultValue;
```

```python
resolveExpression_withDefault_(expression: object, defaultValue: float) -> float
```