eu::v4 Struct Reference

A 4d vector. More...

Public Member Functions
	v4 (float ax, float ay, float az, float aw)
	v4 (const v3 &a, float aw)
	v4 (const float *a)
	Construct the vector from an array.
v3	to_vec3 (float ww) const
	asserts that the w component is what is expected, point=1, vector=0
v3	to_vec3_persp_div () const
	returns a 3d vector using perspective division
float *	get_data_ptr ()
	returns an array to the data
const float *	get_data_ptr () const
	returns an array to the data
bool	operator== (const v4 &rhs)=delete

Public Attributes
float	x
float	y
float	z
float	w

Detailed Description

A 4d vector.

It represents a homogeneous coordinate/projective coordinate.

Definition at line 16 of file vec4.h.

Constructor & Destructor Documentation

v4() [1/3]

eu::v4::v4	(	float	ax,
		float	ay,
		float	az,
		float	aw )

v4() [2/3]

eu::v4::v4	(	const v3 &	a,
		float	aw )

Parameters

a	the xyz components
aw	the w component, point=1, vector=0

v4() [3/3]

eu::v4::v4 ( const float * a )

explicit

Construct the vector from an array.

It is assumed the array is of at least 4 elements in xyzw order.

Member Function Documentation

get_data_ptr() [1/2]

float * eu::v4::get_data_ptr

(

)

returns an array to the data

get_data_ptr() [2/2]

const float * eu::v4::get_data_ptr ( ) const

nodiscard

returns an array to the data

operator==()

bool eu::v4::operator== ( const v4 & rhs )

delete

to_vec3()

v3 eu::v4::to_vec3 ( float ww ) const

nodiscard

asserts that the w component is what is expected, point=1, vector=0

to_vec3_persp_div()

v3 eu::v4::to_vec3_persp_div ( ) const

nodiscard

returns a 3d vector using perspective division

Member Data Documentation

w

float eu::v4::w

Definition at line 21 of file vec4.h.

x

float eu::v4::x

Definition at line 18 of file vec4.h.

y

float eu::v4::y

Definition at line 19 of file vec4.h.

z

float eu::v4::z

Definition at line 20 of file vec4.h.

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

• libs/base/src/eu/base/vec4.h