Public Member Functions
SkScalar	x () const

SkScalar	y () const

SkScalar	z () const

void	set (SkScalar x, SkScalar y, SkScalar z)

SkScalar	length () const
	Return the Euclidian distance from (0,0,0) to the point.

bool	normalize ()
	Set the point (vector) to be unit-length in the same direction as it already points. More...

SkPoint3	makeScale (SkScalar scale) const
	Return a new point whose X, Y and Z coordinates are scaled.

void	scale (SkScalar value)
	Scale the point's coordinates by scale.

SkPoint3	operator- () const
	Return a new point whose X, Y and Z coordinates are the negative of the original point's.

void	operator+= (const SkPoint3 &v)
	Add v's coordinates to the point's.

void	operator-= (const SkPoint3 &v)
	Subtract v's coordinates from the point's.

SkScalar	dot (const SkPoint3 &vec) const

Static Public Member Functions
static SkPoint3	Make (SkScalar x, SkScalar y, SkScalar z)

static SkScalar	Length (SkScalar x, SkScalar y, SkScalar z)
	Returns the Euclidian distance from (0,0,0) to (x,y,z)

static SkScalar	DotProduct (const SkPoint3 &a, const SkPoint3 &b)
	Returns the dot product of a and b, treating them as 3D vectors.

Friends
bool	operator== (const SkPoint3 &a, const SkPoint3 &b)

bool	operator!= (const SkPoint3 &a, const SkPoint3 &b)

SkPoint3	operator- (const SkPoint3 &a, const SkPoint3 &b)
	Returns a new point whose coordinates are the difference between a and b (i.e., a - b)

SkPoint3	operator+ (const SkPoint3 &a, const SkPoint3 &b)
	Returns a new point whose coordinates are the sum of a and b (a + b)

Member Function Documentation

bool SkPoint3::normalize ( )

Set the point (vector) to be unit-length in the same direction as it already points.

If the point has a degenerate length (i.e., nearly 0) then set it to (0,0,0) and return false; otherwise return true.

The documentation for this struct was generated from the following file:

Public Member Functions