X3DTK::SFVec2f Class Reference
[base]

Class declared in <X3DTK/kernel.h> providing a 2D vector. More...

List of all members.

Public Member Functions

• SFVec2f ()
• SFVec2f (float x, float y)
• SFVec2f (const SFVec2f &v)
• SFVec2f & operator= (const SFVec2f &v)
• SFVec2f & operator+= (const SFVec2f &v)
• SFVec2f & operator-= (const SFVec2f &v)
• SFVec2f (const SFString &s)
• SFVec2f (const SFPoint2f &P)
• float & operator[] (int i)
• const float & operator[] (int i) const
• float norm () const
• SFVec2f normalize ()
• SFVec2f normalized () const
• float * f_data ()
• const float * f_data () const
• operator float * ()
• operator const float * () const
• SFString toSFString () const

Public Attributes

• float x
• float y

Static Public Attributes

• const SFVec2f null

Friends

• bool operator== (const SFVec2f &v1, const SFVec2f &v2)
• bool operator!= (const SFVec2f &v1, const SFVec2f &v2)
• SFVec2f operator+ (const SFVec2f &v1, const SFVec2f &v2)
• SFVec2f operator- (const SFVec2f &v1, const SFVec2f &v2)
• SFVec2f operator- (const SFVec2f &v)
• float operator * (const SFVec2f &v1, const SFVec2f &v2)
• SFVec2f operator * (const float a, const SFVec2f &v)

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Detailed Description

Class declared in <X3DTK/kernel.h> providing a 2D vector.

SFVec2f is a vector in an affin space, which is different from a point represented by the SFPoint2f class.

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Constructor & Destructor Documentation

X3DTK::SFVec2f::SFVec2f (   )

Constructor.

X3DTK::SFVec2f::SFVec2f (  float  x, float  y )

Constructor with x, y and z coordinates in parameters.

X3DTK::SFVec2f::SFVec2f (  const SFVec2f &  v  )

Copy constructor.

X3DTK::SFVec2f::SFVec2f (  const SFString &  s  )  [explicit]

Explicit constructor from a string of which format is "x y".

X3DTK::SFVec2f::SFVec2f (  const SFPoint2f &  P  )  [explicit]

Conversion from point to vector.

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Member Function Documentation

const float* X3DTK::SFVec2f::f_data (   )  const [inline]

Returns the pointed array.

float* X3DTK::SFVec2f::f_data (   )  [inline]

Returns the pointed array.

float X3DTK::SFVec2f::norm (   )  const

Returns the norm of the vector.

SFVec2f X3DTK::SFVec2f::normalize (   )

Normalizes the vector.

SFVec2f X3DTK::SFVec2f::normalized (   )  const

Returns the vector normalized but doesn't change the vector.

X3DTK::SFVec2f::operator const float * (   )  const [inline]

Returns the pointed array.

X3DTK::SFVec2f::operator float * (   )  [inline]

Returns the pointed array.

SFVec2f& X3DTK::SFVec2f::operator+= (  const SFVec2f &  v  )

Overloaded operator.

SFVec2f& X3DTK::SFVec2f::operator-= (  const SFVec2f &  v  )

Overloaded operator.

SFVec2f& X3DTK::SFVec2f::operator= (  const SFVec2f &  v  )

Overloaded assignment operator.

const float& X3DTK::SFVec2f::operator[] (  int  i  )  const [inline]

Bracket operator.

float& X3DTK::SFVec2f::operator[] (  int  i  )  [inline]

Bracket operator.

SFString X3DTK::SFVec2f::toSFString (   )  const

Converts into string.

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Friends And Related Function Documentation

SFVec2f operator * (  const float  a, const SFVec2f &  v )  [friend]

Overloaded operator*.

float operator * (  const SFVec2f &  v1, const SFVec2f &  v2 )  [friend]

Overloaded operator*.

bool operator!= (  const SFVec2f &  v1, const SFVec2f &  v2 )  [friend]

Overloaded operator!=.

SFVec2f operator+ (  const SFVec2f &  v1, const SFVec2f &  v2 )  [friend]

Overloaded operator+.

SFVec2f operator- (  const SFVec2f &  v  )  [friend]

Overloaded operator-.

SFVec2f operator- (  const SFVec2f &  v1, const SFVec2f &  v2 )  [friend]

Overloaded operator-.

bool operator== (  const SFVec2f &  v1, const SFVec2f &  v2 )  [friend]

Overloaded operator==.

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Member Data Documentation

const SFVec2f X3DTK::SFVec2f::null [static]

Null vector.

float X3DTK::SFVec2f::x

x coordinates.

float X3DTK::SFVec2f::y

y coordinates.

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