Computes the coplanar intersection of two objects.

**Namespace:**
ceometric.VectorGeometry

**Assembly:**
ceometric.VectorGeometry (in ceometric.VectorGeometry.dll) Version: 1.8.0.0 (1.8.0.0)

# Syntax

C# |
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public PointSet Intersect2d( Triangle triangle ) |

Visual Basic (Declaration) |
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Public Function Intersect2d ( _ triangle As Triangle _ ) As PointSet |

Visual C++ |
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public: PointSet^ Intersect2d( Triangle^ triangle ) |

#### Parameters

- triangle
- Type: ceometric.VectorGeometry..::.Triangle

A triangle coplanar to the line.

#### Return Value

Returns a PointSet containing the intersection points of the line and the circumference of triangle. This point set contains- 0 intersection points if the line is coplanar to triangle but does not intersect triangle
- 1 intersection point if the line is coplanar to triangle and touches triangle in a vertex
- 2 intersection points if the line is coplanar to triangle and crosses triangle
- 2 intersection points if the line is coplanar to triangle and collinear to an edge of triangle

Returns null if the objects are not coplanar.

# Remarks

Use Intersect3d(Triangle) for non-coplanar intersection.