Gnome::Graphene::N-Vec3

Description

A structure capable of holding a vector with three dimensions: x, y, and z.

The contents of the graphene_vec3_t structure are private and should never be accessed directly.

Class initialization

new

:native-object

Create an object using a native object from elsewhere. See also Gnome::N::TopLevelSupportClass.

multi method new ( N-Object :$native-object! )

alloc

Allocates a new graphene_vec3_t structure.

The contents of the returned structure are undefined.

Use .init() to initialize the vector.

method alloc ( --> Gnome::Graphene::Vec3 \)

Methods

add

Adds each component of the two given vectors.

method add ( CArray[N-Vec3] $b, CArray[N-Vec3] $res )

• $b; a graphene_vec3_t.

• $res; return location for the resulting vector.

cross

Computes the cross product of the two given vectors.

method cross ( CArray[N-Vec3] $b, CArray[N-Vec3] $res )

• $b; a graphene_vec3_t.

• $res; return location for the resulting vector.

divide

Divides each component of the first operand $a by the corresponding component of the second operand $b, and places the results into the vector $res.

method divide ( CArray[N-Vec3] $b, CArray[N-Vec3] $res )

• $b; a graphene_vec3_t.

• $res; return location for the resulting vector.

dot

Computes the dot product of the two given vectors.

method dot ( CArray[N-Vec3] $b --> Num )

• $b; a graphene_vec3_t.

Return value; the value of the dot product.

equal This function is not yet available

Checks whether the two given graphene_vec3_t are equal.

method equal ( CArray[N-Vec3] $v2 )

• $v2; a graphene_vec3_t.

free

Frees the resources allocated by $v

method free ( )

get-x

Retrieves the first component of the given vector $v.

method get-x (--> Num )

Return value; the value of the first component of the vector.

get-xy

Creates a graphene_vec2_t that contains the first and second components of the given graphene_vec3_t.

method get-xy ( CArray[N-Vec2] $res )

• $res; return location for a graphene_vec2_t.

get-xy0

Creates a graphene_vec3_t that contains the first two components of the given graphene_vec3_t, and the third component set to 0.

method get-xy0 ( CArray[N-Vec3] $res )

• $res; return location for a graphene_vec3_t.

get-xyz0

Converts a graphene_vec3_t in a graphene_vec4_t using 0.0 as the value for the fourth component of the resulting vector.

method get-xyz0 ( CArray[N-Vec4] $res )

• $res; return location for the vector.

get-xyz1

Converts a graphene_vec3_t in a graphene_vec4_t using 1.0 as the value for the fourth component of the resulting vector.

method get-xyz1 ( CArray[N-Vec4] $res )

• $res; return location for the vector.

get-xyzw

Converts a graphene_vec3_t in a graphene_vec4_t using $w as the value of the fourth component of the resulting vector.

method get-xyzw ( Num() $w, CArray[N-Vec4] $res )

• $w; the value of the W component.

• $res; return location for the vector.

get-y

Retrieves the second component of the given vector $v.

method get-y (--> Num )

Return value; the value of the second component of the vector.

get-z

Retrieves the third component of the given vector $v.

method get-z (--> Num )

Return value; the value of the third component of the vector.

init

Initializes a graphene_vec3_t using the given values.

This function can be called multiple times.

method init ( Num() $x, Num() $y, Num() $z --> CArray[N-Vec3] )

• $x; the X field of the vector.

• $y; the Y field of the vector.

• $z; the Z field of the vector.

Return value; a pointer to the initialized vector.

init-from-float

Initializes a graphene_vec3_t with the values from an array.

method init-from-float ( Num() $src --> CArray[N-Vec3] )

• $src; an array of 3 floating point values.

Return value; the initialized vector.

init-from-vec3

Initializes a graphene_vec3_t with the values of another graphene_vec3_t.

method init-from-vec3 ( CArray[N-Vec3] $src --> CArray[N-Vec3] )

• $src; a graphene_vec3_t.

Return value; the initialized vector.

interpolate

Linearly interpolates $v1 and $v2 using the given $factor.

method interpolate ( CArray[N-Vec3] $v2, Num() $factor, CArray[N-Vec3] $res )

• $v2; a graphene_vec3_t.

• $factor; the interpolation factor.

• $res; the interpolated vector.

length

Retrieves the length of the given vector $v.

method length (--> Num )

Return value; the value of the length of the vector.

max

Compares each component of the two given vectors and creates a vector that contains the maximum values.

method max ( CArray[N-Vec3] $b, CArray[N-Vec3] $res )

• $b; a graphene_vec3_t.

• $res; return location for the result vector.

min

Compares each component of the two given vectors and creates a vector that contains the minimum values.

method min ( CArray[N-Vec3] $b, CArray[N-Vec3] $res )

• $b; a graphene_vec3_t.

• $res; return location for the result vector.

multiply

Multiplies each component of the two given vectors.

method multiply ( CArray[N-Vec3] $b, CArray[N-Vec3] $res )

• $b; a graphene_vec3_t.

• $res; return location for the resulting vector.

near This function is not yet available

Compares the two given graphene_vec3_t vectors and checks whether their values are within the given $epsilon.

method near ( CArray[N-Vec3] $v2, Num() $epsilon )

• $v2; a graphene_vec3_t.

• $epsilon; the threshold between the two vectors.

negate

Negates the given graphene_vec3_t.

method negate ( CArray[N-Vec3] $res )

• $res; return location for the result vector.

normalize

Normalizes the given graphene_vec3_t.

method normalize ( CArray[N-Vec3] $res )

• $res; return location for the normalized vector.

scale

Multiplies all components of the given vector with the given scalar $factor.

method scale ( Num() $factor, CArray[N-Vec3] $res )

• $factor; the scalar factor.

• $res; return location for the result vector.

subtract

Subtracts from each component of the first operand $a the corresponding component of the second operand $b and places each result into the components of $res.

method subtract ( CArray[N-Vec3] $b, CArray[N-Vec3] $res )

• $b; a graphene_vec3_t.

• $res; return location for the resulting vector.

to-float

Copies the components of a graphene_vec3_t into the given array.

method to-float ( Num() $dest )

• $dest; return location for an array of floating point values.

Functions

one

Provides a constant pointer to a vector with three components, all sets to 1.

method one (--> CArray[N-Vec3] )

Return value; a constant vector.

x-axis

Provides a constant pointer to a vector with three components with values set to (1, 0, 0).

method x-axis (--> CArray[N-Vec3] )

Return value; a constant vector.

y-axis

Provides a constant pointer to a vector with three components with values set to (0, 1, 0).

method y-axis (--> CArray[N-Vec3] )

Return value; a constant vector.

z-axis

Provides a constant pointer to a vector with three components with values set to (0, 0, 1).

method z-axis (--> CArray[N-Vec3] )

Return value; a constant vector.

zero

Provides a constant pointer to a vector with three components, all sets to 0.

method zero (--> CArray[N-Vec3] )

Return value; a constant vector.