| Base | Plane2 | |
| ClosestSurfacePoint(Vector2 point, out Vector2 ret, out float sign) | Plane2 | |
| IsInside(Vector2 point) | Plane2 | |
| NegativeClipSegment(ref Vector2 A, ref Vector2 B) | Plane2 | |
| Plane2(Vector2 a_base, Vector2 a_unit_normal) | Plane2 | |
| Project(Vector2 point) | Plane2 | |
| SignedDistance(Vector2 point) | Plane2 | |
| UnitNormal | Plane2 |