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

@three3d/tools 提供了 ThreeJS 常用的工具库

<!-- Do not edit this file. It is automatically generated by API Documenter. -->

[Home](./index.md) &gt; [@three3d/tools](./tools.md) &gt; [discriminateRelationshipOfPolygon\_Circle](./tools.discriminaterelationshipofpolygon_circle.md)

## discriminateRelationshipOfPolygon\_Circle() function

判别多边形和圆的位置关系

**Signature:**

```typescript
export declare function discriminateRelationshipOfPolygon_Circle(polygon: Vector2[], circle: {
    center: Vector2;
    radius: number;
}): GeometricRelationship;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  polygon | Vector2\[\] | 多边形 |
|  circle | { center: Vector2; radius: number; } |  |

**Returns:**

[GeometricRelationship](./tools.geometricrelationship.md)


## Remarks

可以是任意多边形 有以下几种情况： - Contain：包含；其中一个在另一个的内部 - Tangency：相切； - Dissociation：相离：点在多边形外部； - Intersect：相交；