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UnsafeNativeMethods.Plane.DotNormal(Plane,Vector3) Method (Microsoft.DirectX)

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Computes the dot product of a plane and a 3-D vector. The w parameter of the vector is assumed to be 0.

Note: For programming in Microsoft Visual Basic .NET or Microsoft JScript .NET, use the equivalent method in the Microsoft.DirectX structures.

Definition

Visual Basic Public Shared Function DotNormal( _
    ByVal pPlane As Plane, _
    ByVal pV As Vector3 _
) As Single
C# public static float DotNormal(
    Plane pPlane,
    Vector3 pV
);
C++ public:
static float DotNormal(
    Plane pPlane,
    Vector3 pV
);
JScript public static function DotNormal(
    pPlane : Plane,
    pV : Vector3
) : float;

Parameters

pPlane Microsoft.DirectX.Plane
pV Microsoft.DirectX.Vector3

Return Value

System.Single
A SingleLeave Site value that represents the dot product of the plane and the 3-D vector.

Remarks

Given a plane (a, b, c, d) and a 3-D vector (x, y, z), this method's return value is a*x + b*y + c*z + d*0. The DotNormal method is useful for calculating the angle between the normal of the plane and another normal.

See Also