ScaleValue Class Reference

This reference page is linked to from the following overview topics: Lesson 4: Animation Controllers, Object Offset Transformation, Controllers, Keyframe Data Access Classes and Methods.

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Detailed Description

See also:

Class Point3, Class Quat.

Description:

A ScaleValue describes an arbitrary non-uniform scaling in an arbitrary axis system. The Point3 s gives the scaling along the x, y, and z axes, and the quaternion q defines the axis system in which scaling is to be applied. All methods are implemented by the system.

Data Members:

Point3 s;

Scale components.

Quat q;

The axis system of application.

#include <control.h>

Inheritance diagram for ScaleValue:

List of all members.

Public Member Functions
	ScaleValue ()
	ScaleValue (const Point3 &as)
	ScaleValue (const Point3 &as, const Quat &aq)
ScaleValue &	operator+= (const ScaleValue &s)
ScaleValue &	operator*= (const float s)
ScaleValue &	operator= (const ScaleValue &v)
float &	operator[] (int el)
Public Attributes
Point3	s
Quat	q

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Constructor & Destructor Documentation

ScaleValue

(

)

[inline]

Remarks:

Constructor. No initialization is performed.

{ /* NO INIT! */ }

ScaleValue

(

const Point3 &

as

)

[inline]

Remarks:

Constructor. The scale data member is initialized to as. The quaternion data member is set to the identity.

{ s = as; q = IdentQuat(); }

ScaleValue	(	const Point3 &	as,
		const Quat &	aq
	)		[inline]

Remarks:

Constructor. The scale data member is initialized to as. The quaternion data member is set to aq.

Operators:

{s = as; q = aq; }

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Member Function Documentation

ScaleValue& operator+=

(

const ScaleValue &

s

)

[inline]

Remarks:

Adds a ScaleValue to this ScaleValue.

      { (*this)=(*this)+s; return (*this);}

ScaleValue& operator*=

(

const float

s

)

[inline]

Remarks:

Multiplies this ScaleValue by a float. This updates the scale components.

      { (*this)=(*this)*s; return (*this);}

ScaleValue& operator=

(

const ScaleValue &

v

)

[inline]

{s=v.s;q=v.q; return (*this);}

float& operator[]

(

int

el

)

[inline]

Remarks:

Array access operator. This allows the scale components to be accessed using the array operator.

Parameters:

int el

Specifies the element to access: 0=x, 1=y, 2=z.

{return s[el];}

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Member Data Documentation

Point3 s

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Quat q

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