BUI::Transform2d类 参考

二维变换矩阵(简洁形式),在后续UI建模中会经常用到计算位置 [sx , shx, tx] [x] 更多...

类 BUI::Transform2d 继承关系图:

Public 成员函数
	Transform2d ()
	Transform2d (double sx_, double shy_, double shx_, double sy_, double tx_, double ty_)
	Transform2d (const double *m)
	Transform2d (double x1, double y1, double x2, double y2, const double *parl)
	Transform2d (const double *parl, double x1, double y1, double x2, double y2)
	Transform2d (const double *src, const double *dst)
const Transform2d &	parl_to_parl (const double *src, const double *dst)
const Transform2d &	rect_to_parl (double x1, double y1, double x2, double y2, const double *parl)
const Transform2d &	parl_to_rect (const double *parl, double x1, double y1, double x2, double y2)
const Transform2d &	reset ()
const Transform2d &	translate (double x, double y)
const Transform2d &	rotate (double a)
const Transform2d &	scale (double s)
const Transform2d &	scale (double x, double y)
const Transform2d &	multiply (const Transform2d &m)
const Transform2d &	premultiply (const Transform2d &m)
const Transform2d &	multiply_inv (const Transform2d &m)
const Transform2d &	premultiply_inv (const Transform2d &m)
const Transform2d &	invert ()
const Transform2d &	flip_x ()
const Transform2d &	flip_y ()
const Transform2d &	operator*= (const Transform2d &m)
const Transform2d &	operator/= (const Transform2d &m)
Transform2d	operator* (const Transform2d &m)
Transform2d	operator/ (const Transform2d &m)
Transform2d	operator~ () const
bool	operator== (const Transform2d &m) const
bool	operator!= (const Transform2d &m) const
const Transform2d &	operator= (const Transform2d &m)
void	transform (double *x, double *y) const
void	transform_2x2 (double *x, double *y) const
void	inverse_transform (double *x, double *y) const
double	determinant () const
double	determinant_reciprocal () const
double	scale () const
bool	is_valid (double epsilon=g_transform_epsilon) const
bool	is_identity (double epsilon=g_transform_epsilon) const
bool	is_equal (const Transform2d &m, double epsilon=g_transform_epsilon) const
double	rotation () const
void	translation (double *dx, double *dy) const
void	scaling (double *x, double *y) const
void	scaling_abs (double *x, double *y) const

Public 属性
double	sx
double	shy
double	shx
double	sy
double	tx
double	ty

详细描述

二维变换矩阵(简洁形式),在后续UI建模中会经常用到计算位置 [sx , shx, tx] [x]

• [y] [shy , sy, ty] [1]

构造及析构函数说明

Transform2d() [1/6]

BUI::Transform2d::Transform2d

(

)

Transform2d() [2/6]

BUI::Transform2d::Transform2d	(	double	sx_,
		double	shy_,
		double	shx_,
		double	sy_,
		double	tx_,
		double	ty_
	)

Transform2d() [3/6]

BUI::Transform2d::Transform2d ( const double *  m )

explicit

Transform2d() [4/6]

BUI::Transform2d::Transform2d	(	double	x1,
		double	y1,
		double	x2,
		double	y2,
		const double *	parl
	)

Transform2d() [5/6]

BUI::Transform2d::Transform2d	(	const double *	parl,
		double	x1,
		double	y1,
		double	x2,
		double	y2
	)

Transform2d() [6/6]

BUI::Transform2d::Transform2d	(	const double *	src,
		const double *	dst
	)

成员函数说明

determinant()

double BUI::Transform2d::determinant

(

)

const

determinant_reciprocal()

double BUI::Transform2d::determinant_reciprocal

(

)

const

flip_x()

const Transform2d & BUI::Transform2d::flip_x

(

)

flip_y()

const Transform2d & BUI::Transform2d::flip_y

(

)

inverse_transform()

void BUI::Transform2d::inverse_transform	(	double *	x,
		double *	y
	)		const

invert()

const Transform2d & BUI::Transform2d::invert

(

)

is_equal()

bool BUI::Transform2d::is_equal	(	const Transform2d &	m,
		double	epsilon = g_transform_epsilon
	)		const

is_identity()

bool BUI::Transform2d::is_identity

(

double

epsilon = g_transform_epsilon

)

const

is_valid()

bool BUI::Transform2d::is_valid

(

double

epsilon = g_transform_epsilon

)

const

multiply()

const Transform2d & BUI::Transform2d::multiply

(

const Transform2d &

m

)

multiply_inv()

const Transform2d & BUI::Transform2d::multiply_inv

(

const Transform2d &

m

)

operator!=()

bool BUI::Transform2d::operator!=

(

const Transform2d &

m

)

const

operator*()

Transform2d BUI::Transform2d::operator*

(

const Transform2d &

m

)

operator*=()

const Transform2d & BUI::Transform2d::operator*=

(

const Transform2d &

m

)

operator/()

Transform2d BUI::Transform2d::operator/

(

const Transform2d &

m

)

operator/=()

const Transform2d & BUI::Transform2d::operator/=

(

const Transform2d &

m

)

operator=()

const Transform2d & BUI::Transform2d::operator=

(

const Transform2d &

m

)

operator==()

bool BUI::Transform2d::operator==

(

const Transform2d &

m

)

const

operator~()

Transform2d BUI::Transform2d::operator~

(

)

const

parl_to_parl()

const Transform2d & BUI::Transform2d::parl_to_parl	(	const double *	src,
		const double *	dst
	)

parl_to_rect()

const Transform2d & BUI::Transform2d::parl_to_rect	(	const double *	parl,
		double	x1,
		double	y1,
		double	x2,
		double	y2
	)

premultiply()

const Transform2d & BUI::Transform2d::premultiply

(

const Transform2d &

m

)

premultiply_inv()

const Transform2d & BUI::Transform2d::premultiply_inv

(

const Transform2d &

m

)

rect_to_parl()

const Transform2d & BUI::Transform2d::rect_to_parl	(	double	x1,
		double	y1,
		double	x2,
		double	y2,
		const double *	parl
	)

reset()

const Transform2d & BUI::Transform2d::reset

(

)

rotate()

const Transform2d & BUI::Transform2d::rotate

(

double

a

)

rotation()

double BUI::Transform2d::rotation

(

)

const

scale() [1/3]

double BUI::Transform2d::scale

(

)

const

scale() [2/3]

const Transform2d & BUI::Transform2d::scale

(

double

s

)

scale() [3/3]

const Transform2d & BUI::Transform2d::scale	(	double	x,
		double	y
	)

scaling()

void BUI::Transform2d::scaling	(	double *	x,
		double *	y
	)		const

scaling_abs()

void BUI::Transform2d::scaling_abs	(	double *	x,
		double *	y
	)		const

transform()

void BUI::Transform2d::transform	(	double *	x,
		double *	y
	)		const

transform_2x2()

void BUI::Transform2d::transform_2x2	(	double *	x,
		double *	y
	)		const

translate()

const Transform2d & BUI::Transform2d::translate	(	double	x,
		double	y
	)

translation()

void BUI::Transform2d::translation	(	double *	dx,
		double *	dy
	)		const

类成员变量说明

shx

double BUI::Transform2d::shx

shy

double BUI::Transform2d::shy

sx

double BUI::Transform2d::sx

sy

double BUI::Transform2d::sy

tx

double BUI::Transform2d::tx

ty

double BUI::Transform2d::ty