# segmentsIntersect

Canonical: https://docs.shumoku.dev/en/library/api/segmentsIntersect
Language: en

@shumoku/core · 0.4.0 · function

# segmentsIntersect

[Source](https://github.com/konoe-akitoshi/shumoku/blob/main/libs/@shumoku/core/src/layout/invariants.ts#L366)

Shared exact segment-intersection predicate (strict crossing).

```
segmentsIntersect(a1: Position, a2: Position, b1: Position, b2: Position): boolean
```

## Parameters

| Parameter | Type | Description | Default |
| --- | --- | --- | --- |
| `a1` | `Position` | No additional description. | `—` |
| `a2` | `Position` | No additional description. | `—` |
| `b1` | `Position` | No additional description. | `—` |
| `b2` | `Position` | No additional description. | `—` |

## Returns

```
boolean
```

[`libs/@shumoku/core/src/layout/invariants.ts:366`](https://github.com/konoe-akitoshi/shumoku/blob/main/libs/@shumoku/core/src/layout/invariants.ts#L366)