SIVector3.Angle

Description

Returns the angle (in radians) between this vector and the vector v.

C# Syntax

Double SIVector3.Angle( SIVector3 in_pVector );

Scripting Syntax

oFloat = SIVector3.Angle( v );

Return Value

Floating point value (angle in radians between this vector and the vector v).

Parameters

Parameter Type Description
v SIVector3 Operand vector

Examples

1. JScript Example

x = XSIMath.CreateVector3();

y = XSIMath.CreateVector3();

x.Set( 2,0,0 ) ;

y.Set( 1,1,0 ) ;

theta = x.Angle( y )

Application.LogMessage( "Angle is " + theta + " radians (" +  theta / XSIMath.Pi + " pi)" ) ;

Application.LogMessage( "Angle is " + XSIMath.RadiansToDegrees( x.Angle( y ) ) + " degrees" ) ;

//Output (rounded):

//INFO : Angle is 0.785398163 radians (0.25 pi)

//INFO : Angle is 45.0 degrees

2. VBScript Example

dim v1, v2

' Create 3D vectors.

set v1 = XSIMath.CreateVector3

set v2 = XSIMath.CreateVector3

v1.Set 1.0, 2.0, 3.0

v2.Set -1.0, 5.0, 6.0

angle = v1.Angle( v2 )

See Also

SIVector3 SIMatrix3 SIMatrix4 SIRotation SITransformation SIQuaternion