Computes the angle of v1, v2 with a normal vector.

Namespace: Rhino.Geometry
Assembly: RhinoCommon (in RhinoCommon.dll) Version: Rhino 6.0

C#

public static double VectorAngle(
	Vector3d v1,
	Vector3d v2,
	Vector3d vNormal
)

VB

Public Shared Function VectorAngle ( 
	v1 As Vector3d,
	v2 As Vector3d,
	vNormal As Vector3d
) As Double

v1

Type: Rhino.Geometry.Vector3d
First vector.

v2

Type: Rhino.Geometry.Vector3d
Second vector.

vNormal

Type: Rhino.Geometry.Vector3d
Normal vector.

Type: Double
On success, the angle (in radians) between a and b with respect of normal vector; RhinoMath.UnsetValue on failure.

Supported in: 6.0.16224.21491

Vector3d Structure
VectorAngle Overload
Rhino.Geometry Namespace