pulp::canvas::SceneTransform Struct Reference

2D affine transform (CanvasRenderingContext2D layout): [ a c e ] [ b d f ] [ 0 0 1 ] More...

#include <scene_node.hpp>

Public Member Functions
constexpr bool	is_identity () const
constexpr SceneTransform	composed_with (const SceneTransform &r) const
	Multiply (this * rhs).
SceneRect	map_rect (const SceneRect &r) const
	Transform an axis-aligned rect — returns the AABB of the four transformed corners.

Static Public Member Functions
static constexpr SceneTransform	identity ()
static constexpr SceneTransform	translation (float tx, float ty)

Public Attributes
float	a = 1.0f
float	b = 0.0f
float	c = 0.0f
float	d = 1.0f
float	e = 0.0f
float	f = 0.0f

Detailed Description

2D affine transform (CanvasRenderingContext2D layout): [ a c e ] [ b d f ] [ 0 0 1 ]

Member Function Documentation

composed_with()

SceneTransform pulp::canvas::SceneTransform::composed_with ( const SceneTransform & r ) const

inlineconstexpr

Multiply (this * rhs).

Used by the walker when composing a child's transform onto its parent's CTM during paint() and paint_bounds().

identity()

constexpr SceneTransform pulp::canvas::SceneTransform::identity ( )

inlinestaticconstexpr

is_identity()

bool pulp::canvas::SceneTransform::is_identity ( ) const

inlineconstexpr

map_rect()

SceneRect pulp::canvas::SceneTransform::map_rect

(

const SceneRect &

r

)

const

Transform an axis-aligned rect — returns the AABB of the four transformed corners.

Used by the dirty-rect walker so the reported "sub-tree bounding box" is in scene coordinates.

translation()

constexpr SceneTransform pulp::canvas::SceneTransform::translation ( float tx, float ty )

inlinestaticconstexpr

Member Data Documentation

a

float pulp::canvas::SceneTransform::a = 1.0f

b

float pulp::canvas::SceneTransform::b = 0.0f

c

float pulp::canvas::SceneTransform::c = 0.0f

d

float pulp::canvas::SceneTransform::d = 1.0f

e

float pulp::canvas::SceneTransform::e = 0.0f

f

float pulp::canvas::SceneTransform::f = 0.0f

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

• /home/runner/work/pulp/pulp/core/canvas/include/pulp/canvas/scene/scene_node.hpp