@three3d/tools/doc/api/tools.discriminaterelationshipoflinesegment_point.md

@three3d/tools 提供了 ThreeJS 常用的工具库

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## discriminateRelationshipOfLineSegment\_Point() function

判别点和线段的位置关系

**Signature:**

```typescript
export declare function discriminateRelationshipOfLineSegment_Point<Vec extends VectorInstance>(lineSegment: [Vec, Vec], point: Vec): GeometricRelationship.Dissociation | GeometricRelationship.Tangency | GeometricRelationship.Contain;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  lineSegment | \[Vec, Vec\] |  |
|  point | Vec |  |

**Returns:**

[GeometricRelationship.Dissociation](./tools.geometricrelationship.md) \| [GeometricRelationship.Tangency](./tools.geometricrelationship.md) \| [GeometricRelationship.Contain](./tools.geometricrelationship.md)


## Remarks

有以下几种情况： - Contain：包含；线段包含点 - Tangency：相切；点与线段共线，但不在线段上； - Dissociation：相离：不共线；