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# GKRTreeSplitStrategy

Options that control how a tree balances its internal structure when adding elements, used with the [`addElement(_:boundingRectMin:boundingRectMax:splitStrategy:)`](/documentation/GameplayKit/GKRTree/addElement(_:boundingRectMin:boundingRectMax:splitStrategy:)) method.

```
enum GKRTreeSplitStrategy
```

## Topics

### Constants

[`GKRTreeSplitStrategy.halve`](/documentation/GameplayKit/GKRTreeSplitStrategy/halve)

An option to split groups of elements in half based on the order they were added to the tree in.

[`GKRTreeSplitStrategy.linear`](/documentation/GameplayKit/GKRTreeSplitStrategy/linear)

An option to split groups of elements by finding a line that divides space so that half of the elements are on either side.

[`GKRTreeSplitStrategy.quadratic`](/documentation/GameplayKit/GKRTreeSplitStrategy/quadratic)

An option to split groups of elements by finding the subgroups that occupy the least area.

[`GKRTreeSplitStrategy.reduceOverlap`](/documentation/GameplayKit/GKRTreeSplitStrategy/reduceOverlap)

An option to split groups of elements by finding the subgroups whose areas overlap the least.


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