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 28 of file Transformation2D.h.

Public Member Functions
	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...
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 33 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 36 of file Transformation2D.h.

IMP::algebra::Transformation2D::Transformation2D

(

const Vector2D &

t

)

Constructor for a transformation with an identity rotation.

Definition at line 40 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 92 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 51 of file Transformation2D.h.

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

(

)

const

Return the translation.

Definition at line 97 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 60 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 67 of file Transformation2D.h.

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

(

const Transformation2D &

o

)

See help for operator*.

Definition at line 72 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 80 of file Transformation2D.h.

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

(

const Transformation2D &

o

)

See help for operator/.

Definition at line 86 of file Transformation2D.h.

void IMP::algebra::Transformation2D::set_translation

(

const Vector2D &

v

)

Set the translation.

Definition at line 100 of file Transformation2D.h.

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

• Transformation2D.h