ArcBall Namespace Reference

Math utilities, vector, matrix types and ArcBall quaternion rotation class. More...

Classes
class	ArcBallT

Functions
def	sumDot (a, b)
def	Matrix4fT ()
def	Matrix3fT ()
def	Quat4fT ()
def	Vector3fT ()
def	Point2fT (x=0.0, y=0.0)
def	Vector3fDot (u, v)
def	Vector3fCross (u, v)
def	Vector3fLength (u)
def	Matrix3fSetIdentity ()
def	Matrix3fMulMatrix3f (matrix_a, matrix_b)
def	Matrix4fSVD (NewObj)
def	Matrix4fSetRotationScaleFromMatrix3f (NewObj, three_by_three_matrix)
def	Matrix4fSetRotationFromMatrix3f (NewObj, three_by_three_matrix)
	Sets the rotational component (upper 3x3) of a given matrix to the matrix values in the T precision Matrix3d argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the passed rotation components, and then the scale is reapplied to the rotational components. More...
def	Matrix3fSetRotationFromQuat4f (q1)
def	unit_test_ArcBall_module ()
def	_test ()

Variables
float	Epsilon = 1.0e-5

Detailed Description

Math utilities, vector, matrix types and ArcBall quaternion rotation class.

Function Documentation

_test()

def ArcBall._test ( )

private

Matrix3fMulMatrix3f()

def ArcBall.Matrix3fMulMatrix3f	(		matrix_a,
			matrix_b
	)

References sumDot().

Referenced by unit_test_ArcBall_module(), and Lesson48.Upon_Drag().

Matrix3fSetIdentity()

def ArcBall.Matrix3fSetIdentity

(

)

Referenced by Lesson48.Upon_Click().

Matrix3fSetRotationFromQuat4f()

def ArcBall.Matrix3fSetRotationFromQuat4f

(

q1

)

References Matrix3fT(), and sumDot().

Referenced by unit_test_ArcBall_module(), and Lesson48.Upon_Drag().

Matrix3fT()

def ArcBall.Matrix3fT

(

)

Referenced by Matrix3fSetRotationFromQuat4f(), and unit_test_ArcBall_module().

Matrix4fSetRotationFromMatrix3f()

def ArcBall.Matrix4fSetRotationFromMatrix3f	(		NewObj,
			three_by_three_matrix
	)

Sets the rotational component (upper 3x3) of a given matrix to the matrix values in the T precision Matrix3d argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the passed rotation components, and then the scale is reapplied to the rotational components.

Parameters

NewObj	given matrix
three_by_three_matrix	T precision 3x3 matrix

Returns

scaled NewObj

References Matrix4fSetRotationScaleFromMatrix3f(), and Matrix4fSVD().

Referenced by unit_test_ArcBall_module(), Lesson48.Upon_Click(), and Lesson48.Upon_Drag().

Matrix4fSetRotationScaleFromMatrix3f()

def ArcBall.Matrix4fSetRotationScaleFromMatrix3f	(		NewObj,
			three_by_three_matrix
	)

Referenced by Matrix4fSetRotationFromMatrix3f().

Matrix4fSVD()

def ArcBall.Matrix4fSVD

(

NewObj

)

Referenced by Matrix4fSetRotationFromMatrix3f().

Matrix4fT()

def ArcBall.Matrix4fT

(

)

Referenced by unit_test_ArcBall_module().

Point2fT()

def ArcBall.Point2fT	(		x = 0.0,
			y = 0.0
	)

Referenced by unit_test_ArcBall_module(), Lesson48.Upon_Click(), and Lesson48.Upon_Drag().

Quat4fT()

def ArcBall.Quat4fT

(

)

Referenced by ArcBall.ArcBallT.drag().

sumDot()

def ArcBall.sumDot	(		a,
			b
	)

Referenced by ArcBall.ArcBallT._mapToSphere(), Matrix3fMulMatrix3f(), Matrix3fSetRotationFromQuat4f(), and Vector3fLength().

unit_test_ArcBall_module()

def ArcBall.unit_test_ArcBall_module

(

)

References Matrix3fMulMatrix3f(), Matrix3fSetRotationFromQuat4f(), Matrix3fT(), Matrix4fSetRotationFromMatrix3f(), Matrix4fT(), and Point2fT().

Vector3fCross()

def ArcBall.Vector3fCross	(		u,
			v
	)

Referenced by ArcBall.ArcBallT.drag().

Vector3fDot()

def ArcBall.Vector3fDot	(		u,
			v
	)

Referenced by ArcBall.ArcBallT.drag().

Vector3fLength()

def ArcBall.Vector3fLength

(

u

)

References sumDot().

Referenced by ArcBall.ArcBallT.drag().

Vector3fT()

def ArcBall.Vector3fT

(

)

Referenced by ArcBall.ArcBallT._mapToSphere().

Variable Documentation

Epsilon

float ArcBall.Epsilon = 1.0e-5