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UtilCalculateLineLineIntersection Method (Vector3, Vector3, Vector3, Vector3)

Calculates the intersection line segment between 2 lines (not segments).

Namespace:  Demo3D.Common
Assembly:  Demo3D.Common (in Demo3D.Common.dll) Version: 15.0.2.11458
Syntax
C#
Copy
public static Vector3[] CalculateLineLineIntersection(
	Vector3 line1Point1,
	Vector3 line1Point2,
	Vector3 line2Point1,
	Vector3 line2Point2
)

Parameters

line1Point1
Type: Microsoft.DirectXVector3
Start of the first line.
line1Point2
Type: Microsoft.DirectXVector3
End of the first line.
line2Point1
Type: Microsoft.DirectXVector3
Start of the second line.
line2Point2
Type: Microsoft.DirectXVector3
End of the second line.

Return Value

Type: Vector3
Returns null if no solution is found (lines are parallel or co-incident), or a Vector3[] containing the start and end point of the intersection segment; noting that if the lines actually do intersect, these two values will be the same.
Remarks
It returns a line segment, because in general, two 3D lines will not actually intersect, but there is a line segment which joins the two lines at the point where the distance between them is minimised.
See Also