IMP::algebra::Transformation2D Class Reference

Simple 2D transformation class. More...

#include <IMP/algebra/Transformation2D.h>

Inheritance diagram for IMP::algebra::Transformation2D:

Detailed Description

Simple 2D transformation class.

See geometric primitives for more information.

Definition at line 29 of file Transformation2D.h.

Public Member Functions
	Transformation2D (const Transformation2D &)=default
	Transformation2D ()
	Default constructor. An invalid transformation is built. More...
	Transformation2D (const Rotation2D &r, const Vector2D &t=Vector2D(0.0, 0.0))
	Constructor from a Rotation2D and translation vector. More...
	Transformation2D (const Vector2D &t)
	Constructor for a transformation with an identity rotation. More...
Transformation2D	get_inverse () const
	Return the inverse transformation. More...
const Rotation2D	get_rotation () const
	Return the rotation. More...
Vector2D	get_transformed (const Vector2D &o) const
	Perform the transformation on a 2D vector. More...
const Vector2D	get_translation () const
	Return the translation. More...
Vector2D	operator* (const Vector2D &v) const
	Perform the transformation on a 2D vector. More...
Transformation2D	operator* (const Transformation2D &tr) const
	Compose two transformations. More...
const Transformation2D &	operator*= (const Transformation2D &o)
	See help for operator*. More...
Transformation2D	operator/ (const Transformation2D &b) const
	Compute the transformation d which, when composed with b, gives this one. More...
const Transformation2D &	operator/= (const Transformation2D &o)
	See help for operator/. More...
Transformation2D &	operator= (const Transformation2D &)=default
void	set_rotation (double angle)
void	set_translation (const Vector2D &v)
	Set the translation. More...
void	show (std::ostream &out=std::cout) const

Constructor & Destructor Documentation

IMP::algebra::Transformation2D::Transformation2D

(

)

Default constructor. An invalid transformation is built.

Definition at line 34 of file Transformation2D.h.

IMP::algebra::Transformation2D::Transformation2D	(	const Rotation2D &	r,
		const Vector2D &	t = Vector2D(0.0, 0.0)
	)

Constructor from a Rotation2D and translation vector.

Definition at line 37 of file Transformation2D.h.

IMP::algebra::Transformation2D::Transformation2D

(

const Vector2D &

t

)

Constructor for a transformation with an identity rotation.

Definition at line 41 of file Transformation2D.h.

Member Function Documentation

Transformation2D IMP::algebra::Transformation2D::get_inverse

(

)

const

Return the inverse transformation.

const Rotation2D IMP::algebra::Transformation2D::get_rotation

(

)

const

Return the rotation.

Definition at line 93 of file Transformation2D.h.

Vector2D IMP::algebra::Transformation2D::get_transformed

(

const Vector2D &

o

)

const

Perform the transformation on a 2D vector.

Parameters

[in]

o

vector where the transformation is applied

Note

: The transformation is done first applying the rotation and then the translation

Definition at line 52 of file Transformation2D.h.

const Vector2D IMP::algebra::Transformation2D::get_translation

(

)

const

Return the translation.

Definition at line 98 of file Transformation2D.h.

Vector2D IMP::algebra::Transformation2D::operator*

(

const Vector2D &

v

)

const

Perform the transformation on a 2D vector.

Note

: The transformation is done first applying the rotation and then the translation

Definition at line 61 of file Transformation2D.h.

Transformation2D IMP::algebra::Transformation2D::operator*

(

const Transformation2D &

tr

)

const

Compose two transformations.

Note

The transformations are composed such that for any vector v (rt1*rt2)*v = rt1*(rt2*v)

Definition at line 68 of file Transformation2D.h.

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const Transformation2D& IMP::algebra::Transformation2D::operator*=

(

const Transformation2D &

o

)

See help for operator*.

Definition at line 73 of file Transformation2D.h.

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Transformation2D IMP::algebra::Transformation2D::operator/

(

const Transformation2D &

b

)

const

Compute the transformation d which, when composed with b, gives this one.

That is a(x)== d(b(x)) for all x.

Definition at line 81 of file Transformation2D.h.

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const Transformation2D& IMP::algebra::Transformation2D::operator/=

(

const Transformation2D &

o

)

See help for operator/.

Definition at line 87 of file Transformation2D.h.

void IMP::algebra::Transformation2D::set_translation

(

const Vector2D &

v

)

Set the translation.

Definition at line 101 of file Transformation2D.h.

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

• Transformation2D.h